by Amaya Sinha | Feb 29, 2024 | Daily Paper Summaries
Title: Strong chemical tagging with APOGEE: 21 candidate star clusters that have dissolved across the Milky Way discAuthors: Natalie Price-Jones, Jo Bovy, Jeremy J. Webb, Carlos Allende Prieto, Rachael Beaton, Joel R. Brownstein, Roger E. Cohen, Katia Cunha, John Donor, Peter M. Frinchaboy, D. A. García-Hernández, Richard R. Lane, Steven R. Majewski, David L. Nidever, Alexandre Roman-LopesFirst Author’s Institution: David A. Dunlap Department of Astronomy and Astrophysics, University of Toronto, 50 St George Street, Toronto, ON M5S 3H4, CanadaStatus: Published in Monthly Notices of the Royal Astronomical Society, Volume 496, Issue 4, August 2020, Pages 5101–5115 [open access on arXiv] What is Chemical Tagging?Imagine, if you will, a pond. Imagine it’s filled with millions of different birds, fish, reptiles, and overall just a thriving ecosystem. If we were ornithologists focused on finding only the male mallard ducks, how would we do that? We could start with basic observations; if a creature is swimming in the pond, you’d probably be unconvinced that it’s a duck just by that. However, if it swam and walked around on the shore, that’s a slightly more convincing argument. If you hear it quacking at you for food (remember, frozen peas, not bread), you may be more firmly convinced it’s a duck. Finally, if it has a yellow bill, green head, and a gray-brown body, you can then be reasonably confident in your assumption that this creature is, in fact, a male mallard duck.Of course, this is an age-old adage, but its underlying principle is incredibly versatile! When trying to find a particular population (male mallard ducks) within a large sample, we can apply more...
by Astrobites | Apr 3, 2023 | Daily Paper Summaries
There is a tradition in Astronomy to post silly science papers to the arXiv on Aprils Fools day. We’ve collected them all for 2023 and provided some “peer review”
by Guest | May 12, 2021 | Undergraduate Research
In the latest of our #UndergradResearch series, discover Jake Jensen’s work on a mysterious population of stars that appeared in a color-magnitude diagram.
by Pratik Gandhi | Mar 6, 2021 | Daily Paper Summaries
Ever wondered how astronomers study the structure of our own Galaxy from within? Read on to find out how the Gaia mission helps us in this regard!
by Oliver Hall | Dec 9, 2020 | Daily Paper Summaries
Today’s authors look at how the frequency of stellar flares evolves for different types of star.
by Mara Johnson-Groh | Jun 22, 2016 | Daily Paper Summaries
New research shows hot Jupiters find safety in numbers. According to radial velocity data, these giant exoplanets are more commonly found around stars in open clusters.