iiinova — where your digital self keeps evolving

RAS Journals @rasjournals.bsky.social · 25/09/2026

Published in #MNRAS as a Letter: "Search for signatures of outflow interaction around Cygnus X-3", Martí et al. This is Fig. 6: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

NASA’s Wide-field Infrared Survey Explorer (WISE; E. L. Wright et al. 2010) trichromatic map (red 22 μm, green 12 μm, blue 3.4 µm) of CX3 field. The white dotted circle is the same as in Fig. 3, showing the suspected 7 arcmin H I cavity around CX3.

030

RAS Journals @rasjournals.bsky.social · 25/09/2026

Published in #GJI Geophysical Journal International: "Faradaic and non-Faradaic spectral induced polarization signatures of copper and graphite mixtures: disseminated grain versus veinlet mineral structures", Öncül et al. Please visit academic.oup.com/gji/article/... @royalastrosoc.bsky.social

Laboratory SIP measurements on synthetic samples. (a) Electronically conductive inclusions: Gr granules (1), 10 mm Gr rods (2), 20 mm Gr rods (3), Cu granules (4), 10 mm Cu rods (5) and 20 mm Cu rods (6). (b) Photograph showing the random orientation (to the extent possible) of a sample with Cu rods. (c) Photograph of sample holder containing mixture. (d) Schematic diagram of the experimental setup with Gr texture-sand mixtures (disseminated grains, 10 and 20 mm graphite rods).

020

Reposted by RAS Journals

Oxford Academic @academic.oup.com · 24/09/2026

Recent advances and scientific legacy in the Marmara and North Anatolian Fault Zones. Ahead of the ESC General Assembly, this Special Issue from #GJI highlights leading studies of seismic hazards and tectonic behaviour across these high-risk fault systems. oxford.ly/4hyqwOT

Geophysical Journal International special collection on Marmara and North Anatolian Fault Zones. OUP.

111

Reposted by RAS Journals

Royal Astronomical Society @royalastrosoc.bsky.social · 25/09/2026

Are formal conference proceedings still a valuable use of the astronomical community’s time and resources? That's what the IAU would like to get feedback about by inviting the global astronomical community to participate in an online survey. Take part here 👉️ iau.secure-platform.com/site/solicit...

042

RAS Journals @rasjournals.bsky.social · 24/09/2026

Published in #MNRAS: "The MICADO first light imager for the ELT: simulated observations of star forming clumps at cosmic noon", Simioni et al. This is Fig. 2: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Effect of different substructures of the host galaxy on clump detectability. Please see the paper for the full caption.

031

RAS Journals @rasjournals.bsky.social · 24/09/2026

Published in #GJI Geophysical Journal International: "Estimation and cause of the seasonal oscillation between Earth’s centre of mass and centre of figure", Argus et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Plotted as colour gradations are predictions of the sine (a, c) and cosine (b, d) components of the peak-to-peak annual oscillation in elastic displacements produced by change in continental water and barystatic ocean as estimated by Gravity Recovery and Climate Experiment (GRACE). Observations of this annual oscillation are plotted as circles for SLR sites in ILRS2020 data (a, b) and as pentagons for GPS sites in B. Haines et al. (2024) (c, d). The circles and pentagons are filled with colours depicting the observed sine and cosine components of the annual oscillation. If the observations and predictions were correct, then the colour inside each circle would match the colour on the map behind the circle. Contours are at intervals of 5 mm. The 0 mm contour is not plotted. Minimum and maximum values of annual oscillation are given as numerals.

010

RAS Journals @rasjournals.bsky.social · 23/09/2026

Published in #MNRAS: "The MAGPI survey: emission-line products data release and the role of spectroscopic aperture covering fraction on the Balmer decrement–stellar mass relation", Battisti et al. Please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social

Sample MAGPI data. Please see the paper for the full caption.

010

RAS Journals @rasjournals.bsky.social · 23/09/2026

Published in #GJI Geophysical Journal International: "A semi-analytical solution for topographic amplification and broad-band scattering of SH waves by step-like rock slopes", Yang et al. This is Fig. 12: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social

Synthetic seismic displacement time histories of the single-slope topography under SH wave incidence at gamma = 45°⁠: ⁠(a) alpha = 90°, (b) alpha = 45°.

000

RAS Journals @rasjournals.bsky.social · 22/09/2026

Published in #MNRAS: "Mergers lighting the early Universe: modest star formation enhancement without evidence for AGN or Lyα triggering", Puskás et al. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

An example galaxy pair system with its environment (top left) and three closely matched control systems. The primary galaxy is at the centre of each cutout, indicated by a red circle. The secondary galaxy in the pair system is indicated by a blue circle (only in the top-left cutout). Please see the paper for the full caption.

010

RAS Journals @rasjournals.bsky.social · 22/09/2026

Published in #GJI Geophysical Journal International: "Probabilistic imaging of sedimentary basins using spatial clustering of magnetotelluric model ensembles change-points", Seillé et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social

(a) Regional gravity map (Complete Bouguer Anomaly) and (b) survey zoom-in with the regional Total Magnetic Intensity (TMI) background map. The locations of the MT stations are indicated by inverted triangles. The interpreted linear structures (GSWA 2020) are shown in both maps, with the Rodona Shear Zone highlighted. The AusAEM lines including the ones used for the static shift correction are shown in (a).

010

RAS Journals @rasjournals.bsky.social · 22/09/2026

Published in #RASTI RAS Techniques & Instruments: "ASIACO: Asiago spectroscopy and imaging atlas of COmets a decade of cometary science at the Asiago Astrophysical Observatory", Farina et al. This is Fig. 5: please visit academic.oup.com/rasti/articl... to read the paper. @royalastrosoc.bsky.social

Left: Spectrum of comet C/2016 R2 (PanSTARRS), 2018 January 13, 1.22 m Galileo telescope, 300 lines mm^(−1) grating. Detail of the 3800–5200 Å region. Bands of N^+_2 and CO^+ are dominant, while classical CN and carbon-chain molecules are not detected. Right: Trichrome image of comet C/2022 E3 (ZTF) with B, V, and r photometric filters, 2023 February 11, Schmidt telescope, Cima Ekar Observatory (INAF-OAPd). Following calibration with bias, dark, and flat-field corrections, the individual frames were all aligned using the optocentre of the comet as a reference. Colour calibration was made using field stars.

020

Reposted by RAS Journals

Oxford Academic @academic.oup.com · 21/09/2026

To support the Habitable Worlds Observatory mission, RASTI are launching a special issue exploring: 🔭 The creation of software tools 🔭 Opportunities in applying advanced statistical methodologies 🔭 Development of data analysis tools oxford.ly/4he1Iuj @royalastrosoc.bsky.social

Call for papers on Habitable World Observatory development: software, tools and methods. Royal Astronomical Society. OUP.

054

RAS Journals @rasjournals.bsky.social · 21/09/2026

Published in #MNRAS: "Analysis of the plane of satellites around Milky Way-mass galaxies in the IllustrisTNG simulation", Tang et al. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Local filament environment of Group 289 in the Cartesian y-slice passing through the halo centre, marked by the cross. Please see the paper for the full caption.

020

RAS Journals @rasjournals.bsky.social · 21/09/2026

Published in #GJI Geophysical Journal International: "Cross-scale data-driven heat flow prediction in the Ordos Basin and adjacent areas: an XGBoost model with SHAP interpretability", Sun et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to learn more. @royalastrosoc.bsky.social

010

Reposted by RAS Journals

RAS Library and Archives @astrolibrarian.bsky.social · 18/09/2026

An interesting space weather detective story drawing on historical records at @royalastrosoc.bsky.social @exeterunispeccoll.bsky.social and BT Group!

075

RAS Journals @rasjournals.bsky.social · 18/09/2026

Published in #MNRAS as a Letter: "Little Dots: the ULX analogy" by Andrew King. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Schematic picture of super-Eddington mass supply to a black hole, and the consequent differing radiation patterns for hard and soft X-ray emission. Please see the paper for the full caption.

020

RAS Journals @rasjournals.bsky.social · 18/09/2026

Published in #GJI Geophysical Journal International: "Three-dimensional numerical simulation of ambient seismic noise for arbitrary surface source distributions: application to the study of horizontal-to-vertical spectral ratios and their variability", Gregor et al. academic.oup.com/gji/article/...

Surface view of the Mygdonian basin around the Euroseistest stations (blue triangles) showing the position of the S14 station (red star), where large time variations of H/V measurements were observed. The station is located atop of a blind fault, whose interpreted surface trace is indicated by the thick grey line. The basin limits are represented with black dashed lines. Major roads are indicated, in particular the Egnatia highway (pink) to the north. The compass rose indicates the angle relative to north, used to measure the polarization of H/V (see text for details).

000

RAS Journals @rasjournals.bsky.social · 17/09/2026

Published in #MNRAS: "The effect of the atmospheric C/O ratio on interiors of hot Jupiters", van Dijk et al. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Schematic illustration of the coupled interior-atmosphere model. Please see the paper for the full caption.

000

RAS Journals @rasjournals.bsky.social · 17/09/2026

Published in #GJI Geophysical Journal International: "Three-dimensional crustal structure of Mount Isa, metallogenic province in northern Australia from ambient noise tomography", Chang et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social

Map of Northwest Queensland classified with the stratigraphic age, showing the locations of MINQ network stations (red triangles) and main mineral deposits. The inset shows the survey position on the Australian lithosphere–asthenosphere boundary tomography from M.J. Hoggard et al. (2020) and estimated major Australian Craton margin from Geoscience Australia.

000

RAS Journals @rasjournals.bsky.social · 16/09/2026

Published in #MNRAS: "The Stellar Populations of two quiescent low surface brightness dwarf galaxies in low-density environments", Forbes et al. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

DFUWS 68 (left) and DFUWS 258 (right). Please see the paper for the full caption.

030

RAS Journals @rasjournals.bsky.social · 16/09/2026

Published in #GJI Geophysical Journal International: "Complex conductivity of the Toarcian claystone at Tournemire (Southern France)", Ghorbani et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

The Tournemire Underground Research Laboratory (URL) used to study the transport properties of the Toarcian claystone. (a). Geological map. (b). Cross-section. The URL is located in a former railway tunnel almost 2 km long that was dug between 1882 and 1888. The clay formations of the Lower Jurassic are made up of well-compacted clays and marls, over 250 m thick (Domerian 50–58 m and Toarcian over 200 m). The Toarcian is a clayrock, the Domerian is a marl and the Carexian, Sinemurian, Aalenian, Bajocian and Bathonian stages correspond to different types of limestones. The Toarcian stage span from 184.2 to 174.7 ± 0.8 Ma. The Hettangian formation corresponds to a sandstone. The Triassic formation includes sandstones, limestones and clays.

020

RAS Journals @rasjournals.bsky.social · 16/09/2026

Published in #RASTI RAS Techniques & Instruments: "Detection of hydrocarbons in Titan using high-resolution cross-correlation spectroscopy", Coelho et al. This is Fig. 1: please visit academic.oup.com/rasti/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

CH4petitRADTRANS line-by-line transit spectrum and corresponding direct and indirect templates. The top panel shows the transit spectrum computed with the radiative-transfer model. The middle panel displays the corresponding direct template, obtained by normalizing the transit radius with a Gaussian filter. The bottom panel shows the indirect template constructed from the strongest absorption features (75 per cent of lines included here). Only lines that fall within the CRIRES+ spectral orders are included in this step, ensuring that the intensity-based ranking reflects the subset of lines actually used in the cross-correlation analysis. The line intensities in the indirect template are expressed in arbitrary units proportional to the transit-radius contrast; only their relative pattern is used in the cross-correlation. The shaded regions indicate the wavelength coverage of each CRIRES+ spectral order.

020

RAS Journals @rasjournals.bsky.social · 15/09/2026

Published in #MNRAS: "Formation of accretion disks around intermediate-mass black holes in ultra-compact dwarf galaxies and nuclear stellar clusters", Darr & Bekki. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Schematic of the proposed mechanism for accretion disk formation and BH growth. The illustration presents the evolution of a UCD from a massive gas cloud to present-day UCDs with MBHs. The main idea presented is that the formation of AGB stars over time can undergo gas ejection which can infall towards an IMBH forming an accretion disk around it. The schematic also highlights key mechanisms present, such as the formation of new stars within the accretion disk that can populate the entire UCD. Leading to a key prediction for the proposed mechanism, being the creation of a new stellar population

010

RAS Journals @rasjournals.bsky.social · 15/09/2026

Published in #GJI Geophysical Journal International: "High-resolution eikonal-based traveltime tomography and uncertainty quantification of the Kilauea caldera", Gao et al. This is Fig. 5: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Eikonal tomography of Kilauea. Please see the paper for the full caption.

010

RAS Journals @rasjournals.bsky.social · 15/09/2026

Published in #RASTI RAS Techniques & Instruments: "The true masses of radial-velocity exoplanets constrained by stability", Byrne & Bonsor. This is Fig. 5: please visit academic.oup.com/rasti/advanc... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Prior and posterior distributions of true mass when accounting for dynamical stability. The left half of each violin is the prior distribution; the right half, the posterior. Each distribution is truncated at the 95 per cent upper limit, which are labelled by horizontal lines. In each case the upper limits are significantly reduced when accounting for stability, due to higher masses making a system less likely to be dynamically stable. The planets’ orbital periods are all in alphabetical order, except for Barnard’s Star whose planets are named d, b, c, e (J. I. González Hernández et al. 2024).

030

Reposted by RAS Journals

Royal Astronomical Society @royalastrosoc.bsky.social · 14/09/2026

Are you a keen astrophotographer? 🪐🔭📸 In November we're launching a new photography competition called RAStroPhoto to mark the 200th anniversary of our journal Monthly Notices of the Royal Astronomical Society. It's free to enter and open to everybody! Scan the QR code to register your interest.

01512

RAS Journals @rasjournals.bsky.social · 14/09/2026

Published in #MNRAS: "Planetary boundary-layer influence on optical turbulence at AlUla Manara", Alrefay et al. This is Fig. 2: please visit academic.oup.com/mnras/advanc... to read the paper.

The AlUla Manara Astronomical Site Monitor station. Visible in the frame are the 24hSHIMM optical turbulence monitor on its 8 m tower (left), the HATPRO microwave radiometer (centre, on a concrete pad), and the 30-m meteorological tower (right). The image is taken looking approximately east. Volcanic outcrops in the background are characteristic of the basalt plateau on which the site is located.

030

RAS Journals @rasjournals.bsky.social · 14/09/2026

Published in #GJI Geophysical Journal International: "Length-of-day changes driven by artificial water impoundment post-1835", Valencic et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

(a) 6862 reservoirs in the database of W. Hawley et al. (2020) with the size of the symbol being proportional to the logarithm of capacity (scale shown on inset). (b) Volume of impounded water in units of global mean sea level change as a function of time.

020

Reposted by RAS Journals

Oxford Academic @academic.oup.com · 11/09/2026

The latest Editor's Choice article from Astronomy & Geophysics, the members' magazine of the @rasjournals.bsky.social, explores an underappreciated era in the history of the Greenwich Observatory. Discover this fascinating chapter in the Observatory's history: oxford.ly/4gEOYhi

Read the latest A&G Editor’s Choice issue, Volume 67, Issue 3. Royal Astronomical Society. Oxford University Press.

011

RAS Journals @rasjournals.bsky.social · 11/09/2026

Published in #MNRAS: "Impact fragmentation of carbonaceous meteorites with pre-existing large cracks", Michikami et al. This is Fig. 4: please visit academic.oup.com/mnras/advanc... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Three-dimensional visualizations of the eight CM meteorite targets used in this study: Murchison (MU) and Aguas Zarcas (AG), both before and after impact, specifically highlighting the largest resulting fragments. These images are organized by extent of fragmentation. Second shots are indicated by a number 2 in brackets. Values within parentheses represent the mass ratio of the largest fragment to the initial target, ⁠Ml/Mt. Projectile trajectories are indicated by arrows, while the tomographic cross-sectional planes corresponding to Fig. 5 are marked in yellow.

000

RAS Journals @rasjournals.bsky.social · 11/09/2026

Published in #GJI Geophysical Journal International: "Advantages of high-resolution seismic velocity monitoring using coda wave interferometry with an accurately controlled seismic source", Feng et al. Please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social

Accurately ACROSS source and seismic array configuration. (a) Locations of the ACROSS source (red star), seismic array (black squares; individual seismometers denoted by white stars) and a nearby Hi-net station called N.MRIH (Morimachi) (blue dot). Map data were provided by the Geospatial Information Authority of Japan and Google Earth. (b) ACROSS source used in this study. The photograph shows the above-ground part of the ACROSS source, whereas its eccentric mass is underground.

010

RAS Journals @rasjournals.bsky.social · 11/09/2026

The team from GJI are very much enjoying meeting with people at ESC2026 in Istanbul this week. Pictured left is editor-in-chief Margarita Segou leading the GJI author workshop on Wednesday afternoon, and on the right Margarita is on our stand (C8). @royalastrosoc.bsky.social

Margarita Segou speaking at the GJI author workshop at ESC2026 in Istanbul.

Margarita Segou on the GJI stand at ESC2026 (stand C8).

000

Reposted by RAS Journals

Royal Astronomical Society @royalastrosoc.bsky.social · 10/09/2026

Research news 🪐🔭 Astronomers have previously said our Sun may have swallowed a super-Earth-sized planet early in its history. But a new study has gone a step further by suggesting that such an event may have left behind detectable clues inside our star which could still be visible today. 🔍️☀️ ⤵️

1152

RAS Journals @rasjournals.bsky.social · 10/09/2026

Published in #MNRAS: "Exploring the survivability of higher-order multiple protostellar systems – the case of VLA1623", Murillo and Pérez-Villegas. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

The quadruple protostellar system VLA1623. Please see the paper for the full caption.

010

RAS Journals @rasjournals.bsky.social · 10/09/2026

Published in #GJI Geophysical Journal International: "Characterizing differences in seismicity clustering and background rates between Hawaii and California", Rinty & Goebel. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper @royalastrosoc.bsky.social @academic.oup.com

Southern California relocated seismicity with magnitude = 0.0–7.3 between 1981 and 2023. Please see the paper for the full caption.

000

Reposted by RAS Journals

Royal Astronomical Society @royalastrosoc.bsky.social · 09/09/2026

🚨Announcement from this week's European Seismological Commission🚨 Reminder that today the GJI Author Workshop will take place from 5.30pm-6.30pm. In addition, Editor-in-Chief of GJI, Dr Margarita Segou, will be at the GJI booth tomorrow from 10am-12noon to greet and talk with delegates.

Editor-in-Chief of Geophysical Journal International Dr Margarita Segou.

051

Reposted by RAS Journals

Steve Brown - astronomy and astrophotography @sjbastro.bsky.social · 08/09/2026

To celebrate the bicentenary of its flagship journal, MNRAS, the Royal Astronomical Society invites you to take part in a global astronomy photography competition. #Astronomy #Astrophotography www.rastrophoto.ras.ac.uk

rastrophoto.ras.ac.uk

RAStroPhoto – Photography Competition

031

RAS Journals @rasjournals.bsky.social · 09/09/2026

Published in #MNRAS as a Letter: "Relativistic blob signatures in the M87 jet at sub-parsec scales", Mora-Chavez et al. This is Fig. 3: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Morphology at 86 GHz for the best model presented in this work, compared with the results reported by Paper I. The left column displays the GRRT images at 86 GHz, the central column shows these images convolved with the GMVA beam, and the right column presents the observational data published by J. Y. Kim et al. (2018). In both the observational and convolved images, the GMVA beam is represented by an ellipse.

000

RAS Journals @rasjournals.bsky.social · 09/09/2026

Published in #GJI Geophysical Journal International: "The stress pattern and slip tendency in the Tibetan Plateau and adjacent regions under a new active-tectonic block framework", Diao et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper @royalastrosoc.bsky.social

Division of active-tectonic blocks in Tibetan Plateau and its adjacent regions. Thin grey lines are active faults compiled by M. Taylor & A. Yin (2009). The data display the contemporary crustal stress orientation in the upper 40 km based on the WSM database release 2016. Lines indicate the orientation of maximum horizontal stress (SHmax) from different stress indicators, represented by distinct symbols. Colours of the symbols and lines indicate the stress regime with red for normal faulting (NF), green for strike-slip (SS), blue for thrust faulting (TF) and black for unknown (U) stress regime.

000

RAS Journals @rasjournals.bsky.social · 09/09/2026

Published in #RASTI RAS Techniques & Instruments: "Interpreting atmospheric neural networks: insights from explainable AI", Vojtekova et al. This is Fig. 1: please visit academic.oup.com/rasti/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Distribution of log(VMR) for the molecule C_4H_2 across three representative atmospheric layers. The top row corresponds to the equilibrium state, while the bottom row shows the disequilibrium steady state. Each panel displays ≈5000 samples from the test data set, with colour indicating the C/O ratio of each sample. The leftmost panel represents the layer closest to the planet’s surface (highest pressure), and the rightmost panel corresponds to the upper atmosphere (lowest pressure).

000

RAS Journals @rasjournals.bsky.social · 09/09/2026

Featured events at ESC 2026: today, Wednesday 9th September, the GJI Author Workshop, 17.30 to 18.30 (see www.esc2026.org/programme/ for more information). Meet the Geophysical Journal Assistant Editors, Louise Alexander and Fern Storey, at this event. @royalastrosoc.bsky.social

esc2026.org

Programme · 40th ESC 2026 General Assembly

Scientific programme of the 40th General Assembly of the European Seismological Commission, Istanbul, 7-11 September 2026.

100

RAS Journals @rasjournals.bsky.social · 08/09/2026

Published in #MNRAS: "The magnetic field in M16: new results from the JCMT BISTRO survey", Tulloh et al. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Wide-field view of the Eagle Nebula (M16), based on a recoloured DSS2 Blue image obtained from photographic plates from the UK Schmidt Telescope. The four regions of study: Spire, SFO30, I–II–III base, and IV base are labelled. Striped segments show the inferred plane-of-sky magnetic-field orientation derived from 850-μm dust polarization observations from the BISTRO survey, carried out with the JCMT. The dashed boundary indicates the approximate extent of the BISTRO-mapped region. Stars mark selected massive members of the ionizing cluster NGC 6611. The O7 II star NGC 6611 246 (BD⁠) is highlighted; its projected proximity to both the Spire and SFO30 suggests that it may contribute significantly to the local ionization and feedback environment within these structures.

020

RAS Journals @rasjournals.bsky.social · 08/09/2026

Published in #GJI Geophysical Journal International: "Lithospheric boundaries of the São Francisco paleocontinental block revealed by multiple frequency seismic tomography", Affonso et al. This is Fig. 1: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social

(a) Map of our study area (delimited by the red rectangle) on a background of the geologic-tectonic age provinces (U.G. Cordani et al. 2016) of South America. Cratonic nuclei are contoured by black dashed lines. Nuclei outside the study area: PBa—Parnaíba basin (ANP—https://geomaps.anp.gov.br/geoanp/); LACr—Luis Alves craton, PaBI- Paranapanema block, RACr—Rio Apa craton, with outlines based on G.M.P.C. Affonso et al. (2021). PrBI—Parnaíba block, GrBl—Granja block, SLCr—São Luís craton, with outlines based on G.M.P.C. Affonso et al. (2025). Other nuclei are the RPCr—Rio de la Plata craton (U.G. Cordani et al. 2016), ACr—Amazonian craton (M.J.B. Macambira et al. 2020) and the SFCr—São Francisco craton (F.F. Alkmim & M.A. Martins-Neto 2012). BP—Borborema Province from U.G. Cordani et al. (2016). (b) Map zoom into the study area, with the tectonic entities: SeBe- Sergipano belt, RPoBe—Riacho do Pontal belt, RPBe—Rio Preto belt, BrBe—Brasília belt, RbBe—Ribeira belt and ArBe—Araçuaí belt (M. Heilbron et al. 2017); in red is the SFCrN—São Francisco craton northern limits from G.M.P.C. Affonso et al. (2025); in orange are is the SFPB—São Francisco Paleocontinental block (M.P. Rocha et al. 2019); ACSu—Abre Campo suture, in green, and the OLS—Oceanic lithosphere subduction, in purple, from F.F. Alkmim et al. (2006). Coloured triangles indicate seismological stations used by this study.

000

RAS Journals @rasjournals.bsky.social · 08/09/2026

Published in #RASTI RAS Techniques & Instruments: "Long-Integration Magnetar Burst Observatory (LIMBO): instrument summary and early FRB rate constraints", McCauley et al. This is Fig. 2: please visit academic.oup.com/rasti/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

The 4.3-m Leuschner Radio Telescope located at the UC Berkeley Leuschner Student Observatory, equipped with the LIMBO FRB detection pipeline.

001

Reposted by RAS Journals

CRAI Biblioteca de Ciències de la Terra @craiubcterra.bsky.social · 07/09/2026

#geopapersUB Seismic clusters under the Maladeta massif in the central Pyrénées. Letort, J; Sylvander, M; ... GEOPHYSICAL JOURNAL INTERNATIONAL 247:1 [2026] doi.org/10.1093/gji/ggag315

141

Reposted by RAS Journals

Royal Astronomical Society @royalastrosoc.bsky.social · 07/09/2026

This week we're at the 40th General Assembly of the European Seismological Commission in Istanbul 🛬😀 If you're here, why not come and visit the Geophysical Journal International stand between 9am and 6pm from Monday to Friday. Find out more at: www.esc2026.org

Fern Storey, of the RAS, at the GJI stand at the European Seismological Commission Meeting in Istanbul.

073

RAS Journals @rasjournals.bsky.social · 07/09/2026

Published in #MNRAS: "A planet as the possible cause of the HD 181327 debris disc asymmetry", Fox & Wiegert. This is Fig. 1: please visit academic.oup.com/mnras/articl... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

Our revised Target Map of HD 181327, used for all comparisons in our simulations. This is based on the original from C. C. Stark et al. (2014), but with data outside of 150 au removed. This is the map our simulations aim to replicate via the influence of a shepherding planet. The arc is near-centred on the western side.

031

RAS Journals @rasjournals.bsky.social · 07/09/2026

Published in #GJI Geophysical Journal International: "Recovery of global marine full-tensor gravity gradients from SWOT wide-swath altimetry", Chao et al. This is Fig. 2: please visit academic.oup.com/gji/article/... to read the paper. @royalastrosoc.bsky.social @academic.oup.com

$Global marine vertical gravity gradients derived from SWOT altimetry. Global distribution of marine VGG recovered from SWOT altimetry. The map highlights major mid-ocean ridge systems, fracture zones, trench structures and seamount-related short-wavelength gravity signals. Yellow polygon is the Izu–Ogasawara Trench. The unit is E.$

020