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Reposted by Gopal Hazra

Jonathan Fortney @jjfplanet.bsky.social · 03/02/2026

Announcing the 8th Other Worlds Laboratory (OWL) Exoplanet Summer Program, Aug 10-27, 2026. We wish to foster new and existing research collaborations by outstanding visitors, with stays of 1 to 3 weeks at the beautiful UC Santa Cruz campus. Applications accepted Feb 5-March 5. owl.ucsc.edu/summer/

owl.ucsc.edu

Summer 2026

The Other Worlds Laboratory (OWL) at the University of California, Santa Cruz (UCSC) will soon be accepting applications for the eighth annual Exoplanet Summer Program (ESP), from August 10 –…

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Gopal Hazra @astrohazra.bsky.social · 24/01/2026

Our work assimilates 30 years of daily magnetograms in a 3D dynamo model for the first time to construct interior magnetic field of the Sun. Recently published in ApJL ☺️

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Reposted by Gopal Hazra

arXiv @arxiv.bsky.social · 01/01/2026

Happy arxiv:2601 to all who celebrate! 😉🎉🔬 We are so thankful for everyone who uses arXiv everyday to share and discover new research. Happy new year to all - here's hoping for a 2026 full of #openaccess science & lots of new discoveries.

Cartoon of a happy scientist giving a thumbs up. Text reads: Happy New Year from the arXiv team.

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Gopal Hazra @astrohazra.bsky.social · 25/12/2025

The year 2025 is ending with good news ☺️ ! First paper of my PhD student Soumyadeep got accepted in the prestigious Astrophysical Journal Letters (IF=11.7), where we reconstructed magnetic field inside the Sun using data assimilation from observations. Link to the paper: arxiv.org/abs/2509.23959

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Gopal Hazra @astrohazra.bsky.social · 30/09/2025

This would be us!!! Have you ever thought if the sunspots that we consider have morphological asymmetry and not spherical in nature, then how the polar field will change? We answer the question here :)

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Gopal Hazra @astrohazra.bsky.social · 30/09/2025

First time we have assimilated three decades of solar observations into a dynamo model to probe solar interior! Happy reading ☺️

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Reposted by Gopal Hazra

Peter Coles 🏳️‍🌈 🏳️‍⚧️ 🇮🇪 @telescoper.bsky.social · 22/08/2025

The cost in APC for publishing a paper in MNRAS is now £2356. Converting that to dollars at current rates gives about $3150 per paper. On that basis, @ojastro.bsky.social having now published 357 articles has saved the global astrophysics community about $1.1M (for an outlay of around $10K).

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Reposted by Gopal Hazra

Dr. Jessie Christiansen @aussiastronomer.bsky.social · 25/07/2025

APPLICATIONS DUE IN ONE WEEK!

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Reposted by Gopal Hazra

Josh Lothringer @jlothringer.bsky.social · 14/07/2025

Abstracts close this Friday for the Fall 2025 STScI Science Workshop on Atmospheric Escape and Replenishment. We'd love to see you in Baltimore in November! Check it out and let me know if you've any questions. 🔭 #exoplanets www.stsci.edu/contents/eve...

stsci.edu

Atmospheric Escape and Replenishment in Planetary Systems Workshop

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Reposted by Gopal Hazra

Brett Morris @brettmorr.is · 11/07/2025

Presenting: the Olin Wilson Legacy Survey (OWLS). 🧪🔭 #stellarastro Since 2019, Leslie Hebb, Suzanne Hawley and I have been monitoring spectra of bright northern stars including those monitored by Olin Wilson from ~1965-2000, and planet-hosting stars And we're not done. arxiv.org/abs/2507.07330

Figure 7. Time series of S-indices for five targets with a range of spectral types. The top three panels show data from 1965 to 2024 for
HD 78366 (F dwarf), HD 81809 (G dwarf), and the K-dwarf HD 26965, including historic MWO data (timespan in yellow) and newly obtained
OWLS measurements (timespan in blue). We plot a curve on the G and K stars with three Lomb-Scargle (sinusoidal) terms, with periods
ranging from 8 to 15 years. The OWLS S-indices from 2020-2024 for two M dwarfs GJ 388 B and GJ 494 are shown in the bottom row.

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Reposted by Gopal Hazra

AstroArxiv @astroarxiv.bsky.social · 08/07/2025

High-resolution Ultraviolet-to-nearinfrared Characterization of Exoplanet Atmospheres. Patricio E. Cubillos et. al. arxiv.org/abs/2507.03060

Cross-correlation signature of the ultra hot-Jupiter WASP-121b as a function of orbital phase and radial-velocity (RV) shift, collected from 8 ESPRESSO observing nights [0.38--0.78 µm,][]{PelletierEtal2025ajWASP121bCRIRESplus

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Gopal Hazra @astrohazra.bsky.social · 30/06/2025

It was an excellent event! So much fun, woohoo!

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Reposted by Gopal Hazra

Hugh McDougall Astro @hughmcd-astro.bsky.social · 25/05/2025

🔭If you work in stats you've probably heard of nested sampling: MCMCs fancy cousin. Enough people have asked me how it works that I've written an article (including examples!) explaining: 1. What NS is 2. Why we need it over MCMC 3. How to know if it's working hughmcdougall.github.io/blog/03_stat...

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Gopal Hazra @astrohazra.bsky.social · 09/05/2025

My review article on "Atmospheric Escape from Exoplanets" is finally published in Reviews of Modern Plasma Physics. The full-text copy of the article is available in the following link: rdcu.be/ek5aY

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Reposted by Gopal Hazra

Max Planck Institute for Solar System Research @mpsgoettingen.bsky.social · 28/02/2025

Last year, #ISRO 's solar probe #Adiyta-L1 witnessed a X6.3 #flare and captured 1st images from the #chromosphere. Published today by scientists led by #IUCAA and including #MPSGoettingen in #TheAstrophysicalJournalLetters. More here: www.mps.mpg.de/8324638/news... ☀️🔭 image credit: SUIT/Aditya-L1

Flare from February 22nd 2024, as seen through the 8 filters of Aditya-L1's instrument SUIT

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Gopal Hazra @astrohazra.bsky.social · 26/02/2025

I am excited to share that my review paper is in arXiv today. This paper gives the basics and overall progress of the field-atmospheric escape from exoplanets, in recent years. It will appear soon in the Reviews of Modern Plasma Physics. arxiv.org/abs/2502.18124

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Gopal Hazra @astrohazra.bsky.social · 13/02/2025

We are delighted to announce an exoplanet workshop at IIT Kanpur from 4-6th April 2025. Please share the word. Deadline: 27th Feb 2025 For application: sites.google.com/view/exows25...

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Gopal Hazra @astrohazra.bsky.social · 30/01/2025

Summer internship opportunities at IIT Kanpur for masters and UG students to work in a research group. Check the following link Masters students: www.iitk.ac.in/cce/SARIP/ UG students: surge.iitk.ac.in/dates.php

surge.iitk.ac.in

SURGE IIT Kanpur

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