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Little Red (Dot), what a red, old, compact galaxy you are. All the better to confuse you with!
This guest post was written by Aylin Garcia Soto, a graduating Ph.D. student from Dartmouth University studying M dwarf variability. She will start a postdoc at Boise State University working with Dr. Brian Jackson on tidal decay in exostellar systems. Outside of research, she enjoys reading, watching K dramas (and other dramas), playing guitar, and writing creative stories. Title: Exploring the Active Galactic Nucleus Fraction of a Sample of JWST’s Little Red Dots at 4 < z < 8: Overmassive Black Holes Are Strong Flavored Authors: Emmanuel Durodola, Fabio Pacucci, Ryan C. Hickox First Author’s Institution: Department of Physics & Astronomy, Dartmouth College, Hanover, NH 03755, USA Status: Published in ApJ [open access] The Little Red Dot Once upon a time there was an object called Little Red Dot. It lived a long long long (over 12 billion years) ago with a big big big (x10) ol’ black hole wrapped in a large dusty blanket. One day, a gentle-telescope named JWST took its camera to visit its universe, and on its way, it bumped into Little Red. Oh my, what a red, old, compact galaxy you are. All the better to confuse you with, my dear scientist. What strange spectral energy distribution you present. All the better to keep you guessing (what I am). The Little Red Dots and Modern AGNs Much of what we know about Little Red Dots (LRDs) arose after 2024 thanks to data from the JWST space telescope. These red objects represent emitted light from high-redshift or distant objects that formed about 1.5 billion years after the big-bang (13.8 billion years ago). To measure the…
Astrobites at AAS 248: Welcome!
Welcome to our coverage of AAS 248! We’ve got interviews with speakers, daily coverage, and so much more to come this week.
Meet the AAS Keynote Speakers: Prof. Mario Jurić
Today we interview Solar System scientist and expert in Rubin Observatory data, Prof. Mario Jurić from the University of Washington, for his Plenary Talk at #AAS248!
Meet the AAS 248 Plenary Speakers: Dr. Esra Bulbul
Meet Dr. Esra Bulbul: 2025 HEAD Mid-Career Prize winner, X-ray cosmologist, and the scientist mapping galaxy clusters to uncover the nature of dark energy.
Meet the AAS 248 Plenary Speakers: Dr. Sanmi Koyejo
Meet Dr. Sanmi Koyejo: Stanford computer scientist, AI researcher, and AAS plenary speaker working to make artificial intelligence a more trustworthy partner in scientific discovery.
The Universe’s Most Wanted Black Holes Finally Have an Alibi
GW231123 defies our best models of stellar collapse, hosting two black holes that shouldn’t exist. A new paper proposes a radical solution: these monsters may have been born in the early universe as primordial black holes, quietly feeding for billions of years until they became the record-breakers we detected today.
Beyond astro-ph
Astronomy beyond the research
[Beyond] Undergraduate astronomy degrees vary widely. Here’s what could be done to fix that.
A survey of physics and astronomy departments across the country has shown that degrees in astronomy can be pretty different. Read more about the AAS SURGE committee’s findings and recommendations!
An introduction to Obsidian for the busy astronomer
Whether you’re looking for a new way to organize your thoughts or just want to experiment with a different workflow, Obsidian offers a refreshing, local-first approach to note-taking. Here is a quick, no-frills guide to getting started with Obsidian.
Two satellite proposals threaten dark and quiet skies worldwide
Giant mirrors in space to create sunlight at night and an AI data center made up of 1-million satellites are undergoing regulatory approval. How did we get here?
Navigating careers in astronomy
Career advice
Interview Series: Jorge Moreno
For today’s bite, we sat down for a conversation with Professor Jorge Moreno, the fourth Mexican astronomer to earn tenure at an American university!
Astro sequoia: a blueprint for spaces of learning and discovery
In this bite, Professor Jorge Moreno shares his teaching philosophy and framework for creating an inclusive classroom!
Raising eSTEAM: An Interview with Samantha Gilbert-Janizek
For today’s bite we interview Samantha Gilbert-Janizek about a new prison outreach program she founded called Raising eSTEAM!
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