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Peter Ferguson

@theotherpsf.bsky.social
87 followers 84 following 7 posts

Astronomer, helping to make the Vera C. Observatory a thing and use it to look for dark matter. Currently a DiRAC fellow at UW/Seattle He/Him

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Reposted by Peter Ferguson
Yjan Gordon @yjangordon.bsky.social · 09/10/2026
Ever wonder where the neutrinos seen by the IceCube telescope come from? We investigate that in our latest paper, where we show evidence of a correlation between radio flares seen by the VLA Sky Survey and astrophysical neutrinos. With @theotherpsf.bsky.social, Eric Hooper, and Michael Martinez
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Reposted by Peter Ferguson
William (Will) Cerny @wcerny.bsky.social · 04/08/2026
Really excited to report the discovery of Aquarius IV: The Vera C. Rubin Observatory's first Milky Way satellite discovery! Rubin+ its LSST survey is a total game-changer in the search for the faintest and most distant MW satellites. 🔭 arxiv.org/abs/2608.02601
arxiv.org
Discovery of the Distant, Ultra-Faint Milky Way Satellite Aquarius IV with the Vera C. Rubin Observatory Early Data Preview 2
We present the discovery of Aquarius IV (Rubin J2201$-$0234) -- the first ultra-faint Milky Way satellite to be identified using data from the Vera C. Rubin Observatory. This system was detected at $\...
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NSF–DOE Rubin Observatory @rubinobservatory.org · 15/07/2026
Solar System reviews: ⭐️⭐️⭐️⭐️⭐️ ☄️Comet 3I/ATLAS: "Nice place. Just passing through." NSF–DOE Rubin Observatory captured this NOIRLab #ImageOfTheWeek on 19 Dec 2025. Rubin is expected to reveal more interstellar objects, helping scientists compare our Solar System with other systems.
Comet 3I/ATLAS colored blue, with a bright rounded coma at upper right and a broad, faint blue tail sweeping diagonally left across a field dotted with stars and faint galaxies. Credit: NSF–DOE Vera C. Rubin Observatory/NOIRLab/SLAC/AURA/C. Chandler
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Denis Erkal @derkal.bsky.social · 10/07/2026
Interested in a 3 year postdoc working on stellar streams and dark matter? Come join our amazing Astro group in Surrey to work with me and Eugene Vasiliev. Details here and the deadline is July 30th. Let me know if you have any questions! jobs.surrey.ac.uk/vacancy.aspx... 🧪🔭☄️
jobs.surrey.ac.uk
Job Vacancy at the University of Surrey: Research Fellow in Stellar Streams
The University of Surrey is a global community of ideas and people, dedicated to life-changing education and research. We are ambitious and have a bold vision of what we want to achieve - shaping ours...
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Peter Ferguson @theotherpsf.bsky.social · 01/07/2026
So excited and proud to be a part of getting to this moment!
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Reposted by Peter Ferguson
Denis Erkal @derkal.bsky.social · 10/06/2026
The Arrakihs mission has been adopted as ESA's next F-class mission, with an expected launch in 2030! It will look at the low surface brightness outskirts of 80 Milky Way-like galaxies. www.esa.int/Science_Expl...
esa.int
ESA adopts galactic archaeology mission Arrakihs
The European Space Agency’s (ESA) Science Programme Committee has adopted the Arrakihs mission. Planned for launch by the end of 2030, Arrakihs will capture the faint light from nearby galaxy haloes. ...
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Michelle Collins @runningastronomer.bsky.social · 10/06/2026
Arrakihs is a go! Congratulations to the whole team, I'm so happy and excited! And to my colleague @derkal.bsky.social who has put in a huge amount of effort to this awesome mission 🎉🎉🎉🎉🎉🔭☄️😊
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Eric Bellm @ebellm.bsky.social · 02/06/2026
@vrubinobs.bsky.social has started observing 🔭 — and we're hiring! Rubin's Data Management team is looking for two Research Scientists to join us at the University of Washington @dirac-institute.bsky.social. Come help build the software that turns Rubin images into discoveries! ls.st/uw-dm-26
ls.st
Research Scientist/Engineer 3
Job Description The Department of Astronomy has an outstanding opportunity for a Research Scientist/Engineer 3 position to join their team. Two positions available. The Vera C. Rubin Observatory Alert Production group within the Data Intensive Research in Astrophysics and Cosmology (DIRAC) Institute at the University of Washington invites applications for a research scientist to join us in Seattle to develop and operate its real-time astronomical data-processing pipelines. This position is based in Seattle, WA. About this Opportunity The Rubin Observatory has begun observations and will soon undertake a decade-long astronomical survey, the Legacy Survey of Space and Time (LSST; http://lsst.org). It will observe half the sky every three nights, detect seven million transient events nightly, and generate more than 6 petabytes of data per year. Its catalogs will include data for about 40 billion objects. The University of Washington is leading the development and operations of the software pipelines that will analyze LSST's images in near-real time, detect millions of transient, variable and moving objects — and alert the world about them. We are looking for a research scientist to work within the Alert Production team and across the wider Rubin Data Management project. In this position you will help develop and operate important elements of the LSST data processing algorithms and software (including work on image differencing, coadded image template generation, object classification, and alert streaming). Twenty percent of your time will be available for original research. Key Responsibilities Algorithm and Software Development (40%): Develop, implement, and test elements of the LSST data processing algorithms and software pipelines, with an emphasis on scientific rigor and computational performance. Work may include image differencing, coadded image template generation, object association and classification, and alert streaming infrastructure. Contribute to the full development lifecycle, including algorithm and software design, code review, testing, and maintenance, following modern software engineering best practices such as version control, continuous integration, and peer review. Primary development will be in Python, with performance-critical components implemented in C++ or Rust. Data Analysis in Support of LSST Operations (25%): Evaluate the scientific data quality of LSST data products as processed by the developed pipelines, ensuring that outputs meet observatory requirements. Explore large-scale datasets to identify systematic issues, develop quantitative metrics to characterize pipeline performance, and diagnose the root causes of data quality problems. Propose and implement mitigations in collaboration with pipeline developers and members of the science community. Documentation and Reporting (15%): Communicate the results of algorithm development and data analysis activities through technical notes, peer-reviewed journal papers, and presentations. Report results to both internal project stakeholders and the broader astronomical community. Maintain clear and thorough documentation of software, methods, and findings. Participate in planning meetings to coordinate work activities and track progress. Personally-directed research (20%): Lead or collaborate on independent scientific research topics making use of Rubin Observatory data. Disseminate results through peer-reviewed publications and presentations at scientific conferences. Required Qualifications To be considered for this opportunity your application must demonstrate you meet both the minimum qualifications and additional qualifications listed below. Equivalent education and/or experience may substitute for minimum qualifications except when there are legal requirements, such as a license, certification, and/or registration. Minimum Qualifications Bachelor’s Degree, Astronomy, Physics, Computer Science, or related field Four years of experience developing Python and/or C++ algorithms and software in an astronomical context Applicants who do not meet these qualifications WILL NOT be forwarded to the Hiring Manager. Desired Qualifications Strong written and oral communication skills PhD in astronomy, physics, computer science, or a related field. Prior experience with large astronomical survey data and/or software. Experience with collaborative software development using Git and GitHub. Commitment to writing clear documentation and software tests; familiarity with continuous integration. Enthusiasm for contributing to science projects enabled by early LSST data in DiRAC research areas (https://dirac.astro.washington.edu/research/). Visa Sponsorship This recruitment is open to applicants who will require employer sponsorship for an H-1B or E-3 visa. About the Team The Rubin Observatory is an international collaboration with headquarters in Tucson, AZ. The Rubin Observatory Data Management team is composed of approximately 100 people, with 12 based at the University of Washington. The open-source codebase is available at https://github.com/lsst, and the developer guide is maintained at https://developer.lsst.io. The Institute for Data-intensive Research in Astrophysics and Cosmology (DiRAC; http://dirac.astro.washington.edu) is a center within the Astronomy Department at the University of Washington. Its mission is to build the world’s most advanced datasets, algorithms, and tools to explore and understand the universe. The Institute comprises six faculty and senior fellows and over 30 postdoctoral researchers, research scientists, software engineers, and graduate students. We strive to be an inclusive, welcoming, and collaborative community. We especially encourage individuals from underrepresented groups in STEM to apply. Prospective applicants are encouraged to learn more about DiRAC research areas at https://dirac.astro.washington.edu/research/. Compensation, Benefits and Position Details Pay Range Minimum: $80,244.00 annual Pay Range Maximum: $132,612.00 annual Other Compensation: - Benefits: For information about benefits for this position, visit https://www.washington.edu/jobs/benefits-for-uw-staff/ Shift: First Shift (United States of America) Temporary or Regular? This is a regular position FTE (Full-Time Equivalent): 100.00% Union/Bargaining Unit: UAW Research About the UW Working at the University of Washington provides a unique opportunity to change lives – on our campuses, in our state and around the world. UW employees bring their boundless energy, creative problem-solving skills and dedication to building stronger minds and a healthier world. In return, they enjoy outstanding benefits, opportunities for professional growth and the chance to work in an environment known for its diversity, intellectual excitement, artistic pursuits and natural beauty. Our Commitment The University of Washington is committed to fostering an inclusive, respectful and welcoming community for all. As an equal opportunity employer, the University considers applicants for employment without regard to race, color, creed, religion, national origin, citizenship, sex, pregnancy, age, marital status, sexual orientation, gender identity or expression, genetic information, disability, or veteran status consistent with UW Executive Order No. 81. To request disability accommodation in the application process, contact the Disability Services Office at 206-543-6450 or dso@uw.edu. Applicants considered for this position will be required to disclose if they are the subject of any substantiated findings or current investigations related to sexual misconduct at their current employment and past employment. Disclosure is required under Washington state law. Use the filters or enter keywords in the search box (such as “custodian,” “nursing” or “manager”) to explore available opportunities. To find temporary opportunities, enter “temporary” in the search box. If you are a current UW employee: You must log into Workday and apply internally through the UW Jobs Hub. Looking for faculty, librarian or academic staff positions? Please visit our Academic Jobs site. Looking for student employment? Learn more on our Student Employment site. There are many perks to working for the University of Washington. Learn more about the benefits that could be available to you as a UW employee. Sign up for Job Alerts to be notified about job opportunities at the UW that interest you; you’ll be one of the first to learn when openings become available. You will be asked to create an account if you do not already have one.
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Aritra Ghosh I অরিত্র ঘোষ @aritraghsh09.bsky.social · 22/05/2026
🔭 Paper Day! 🧪 Introducing Hyrax — an astro-focused ML framework built for the era of Rubin, Roman, and Euclid Handles the entire ML lifecycle: from data acquisition → training → inference → interactive latent-space discovery. pip install hyrax (1/n) 🧵 #astronomy #astrocoding #extragalactic
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Mekka Okereke @mekka.mekka-tech.com · 13/04/2026
Describing dark matter at an NBA press conference ♥️👨🏿‍🔬📡🌌
m.youtube.com
Today’s lesson on dark matter brought to you by Wemby 🔭🌌 #victorwembanyama #roty #nba
YouTube video by San Antonio Spurs
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Jeremy Berg @jeremymberg.bsky.social · 16/03/2026
NSF Update through March 13, 2026 1/2
A line graph of the number of NSF awards in fiscal 2026 compared to fiscal years 2021-2025. The fiscal year 2026 is well below the other curves and increasing only very slowly.
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US National Gemini Office @usngo.bsky.social · 03/09/2025
Throwback post: 𝗧𝗮𝗿𝗴𝗲𝘁𝗶𝗻𝗴 𝗕𝗿𝗶𝗴𝗵𝘁 𝗠𝗲𝘁𝗮𝗹-𝗽𝗼𝗼𝗿 𝗦𝘁𝗮𝗿𝘀 𝗶𝗻 𝘁𝗵𝗲 𝗗𝗶𝘀𝗸 𝗮𝗻𝗱 𝗛𝗮𝗹𝗼 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗚𝗮𝗹𝗮𝘅𝘆 by @guilimberg et al. ui.adsabs.harvard.edu/abs/2021ApJ...., including data from 25 Gemini programs between 2014-2019!! #Astronomy
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Alex Ji @alexji.bsky.social · 05/08/2025
We’ve got a new zooniverse program called Dwarf Quest! Help us find members of our Milky Way’s galactic entourage in data from the Dark Energy Camera www.zooniverse.org/projects/ywy...
zooniverse.org
Zooniverse
The Zooniverse is the world’s largest and most popular platform for people-powered research.
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Reposted by Peter Ferguson
NSF–DOE Rubin Observatory @rubinobservatory.org · 19/06/2025
Get ready to join us virtually for #RubinFirstLook — the grand reveal of images from Rubin, and the first preview of what's to come over the next ten years as Rubin begins to #CaptureTheCosmos ✨🔭🧪 🗓️: June 23, 2025 🕚: 11am US EDT 🔗: ls.st/rubin-first-look-livestream
ls.st
First Images from NSF–DOE Vera C. Rubin Observatory | #RubinFirstLook
We’re nearly ready to #CaptureTheCosmos! Join the NSF–DOE Vera C. Rubin Observatory team on June 23, 2025 at 11am US EDT as they reveal the first incredible ...
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NSF–DOE Rubin Observatory @rubinobservatory.org · 19/06/2025
We are 4 days from Rubin First Look, so we're locked in on our 4 science goals! 🔭🧪 NSF–DOE Rubin Observatory will focus on: 🧐 Understanding Dark Matter and Dark Energy 🌎 Creating an Inventory of the Solar System 🌌 Mapping the Milky Way ☄️ Exploring the Changing Sky
Creative illustration. In it, we see a divided-into-five screen. Each screen portion contains a graphical representation of one of the Rubin Observatory's Science Goals.
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NSF–DOE Rubin Observatory @rubinobservatory.org · 12/03/2025
Lights, camera, action! The world's largest digital camera has been installed at NSF–DOE Rubin Observatory! 🤩 The LSST Camera was the final major component of the observatory. With it in place, Rubin officially enters its final phase of testing!🔭 🔗: rubinobservatory.org/news/lsst-camera-installed
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 25/02/2025
The cost of federal workforce salaries is only 4.3% of the budget Absolutely wild to fuck the economy over 4.3% of the federal budget and the Republicans are just like “nah it’s cool”
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choir Collaboration @choirastro.bsky.social · 19/02/2025
MUTUAL AID ALERT: Stand with our community in Astro+ adjacent fields impacted by the attack on DEIA, support our community by giving aid through our GoFundMe. See links in thread! - choir collab, @blackinastro.bsky.social, Astro Poverty Survey Team, MVMT Consulting @dranicole.bsky.social)
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 09/02/2025
Lots of anticipatory obedience from scientific institutions including ones that are home to astronomers and physicists, like Brookhaven National Lab and Vera Rubin Observatory. 🧪 🔭 ⚛️ #giftlink www.nytimes.com/2025/02/09/s...
nytimes.com
A Sweeping Ban on D.E.I. Language Roils the Sciences (Gift Article)
President Trump’s executive order is altering scientific exploration across a broad swath of fields, even beyond government agencies, researchers say.
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 31/01/2025
Damaging and wildly illegal bsky.app/profile/chan...
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Meredith Rawls @merrdiff.bsky.social · 30/01/2025
How quickly scientific collaborations dump previously vocal commitments to inclusivity+ to continue their science without risking losing federal $ Do I want science and paychecks to continue? Yes. Is it worth this? Everyone in leadership seems to think so. Disappointing does not begin to cover it
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Carl Zimmer @carlzimmer.com · 28/01/2025
American science and medicine has been thrown into chaos and uncertainty over the past week. Here are some stories to get up to speed. 1/12
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NSF–DOE Rubin Observatory @rubinobservatory.org · 14/01/2025
When you turn it on and it works spectacularly! The Rubin team has successfully completed the first on-sky engineering tests using the 144-Mpx engineering camera. Up next: installing the largest digital camera in the world, LSST Camera! 🔭🧪 rubinobservatory.org/news/rubin-completes-comcam-tests
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Francisco J. Mercado @astronomerc.bsky.social · 09/01/2025
Kicking off the new year with a paper day! With @jorgitomoreno.bsky.social, Robert Feldman, Marckie Zeender, José Benavides, Courtney Klein, Coral Wheeler, @jbprime.bsky.social, @linoush95.bsky.social, and Phil Hopkins arxiv.org/abs/2501.04084
arxiv.org
Effects of galactic environment on size and dark matter content in low-mass galaxies
We utilize the cosmological volume simulation, FIREbox, to investigate how a galaxy's environment influences its size and dark matter content. Our study focuses on approximately 1,200 galaxies (886 ce...
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Cees Bassa @cbassa.bsky.social · 04/01/2025
For the 4th year in a row, my all-sky camera has been taking an image of the sky above the Netherlands every 15 seconds. Combining these images reveal the length of the night changing throughout the year, the passage of clouds and the motion of the Moon and the Sun through the sky. #astrophotography
This image shows the hourglass shape of the nights shortening and
lengthening from winter to summer and from summer to winter, passing
clouds, the Moon passing through the night sky every month (diagonal
bands) and the Sun climbing higher in the sky during summer.
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NSF–DOE Rubin Observatory @rubinobservatory.org · 01/01/2025
New year, fresh starts. And Rubin will start something truly epic in 2025 🌌 It's officially the year Rubin will finish construction! This is the year we will begin our epic decade-long quest to #CaptureTheCosmos 🎥 🔭🧪 📷: H. Stockebrand
Rubin Observatory beneath a glowing night sky showing the band of the Milky Way, Venus, and a comet. The observatory is a boot-shaped structure at center, with long white service building and vertical silver dome. The Milky Way stretches horizontally overhead as a cotton-candy-like band of stars and dust. Venus shines brightly as a point to the left, and the thin, faint streak of a comet appears above the observatory
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NSF–DOE Rubin Observatory @rubinobservatory.org · 20/11/2024
✍️ Rubin #CommissioningNotes, entry 2️⃣: when you turn it on and it works 🤌 Initial tests with Rubin's test camera, ComCam, showed the telescope was already nearly aligned before even looking at the sky — a testament to decades of work! 🔭🧪 🧵
Rubin Observatory's telescope inside the observatory dome, with the night sky visible through the rectangular opening overhead. The short and squat teal telescope is viewed from a diagonal angle at ground level, pointed straight up and illuminated from the bottom.
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Alex Ji @alexji.bsky.social · 08/12/2023
First evidence for astrophysical nuclear fission, by my RPA collaborators! www.science.org/doi/10.1126/... 🔭
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Peter Ferguson @theotherpsf.bsky.social · 05/09/2023
This is so cool! Follow the link and find some dark matter 🕵️‍♀️
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