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 Sabina Sagynbayeva | Dec 26, 2022 | Daily Paper Summaries
Chemical elements are pretty good history teachers! Today’s paper describes how chemical abundances can tell us about the history of where a planet formed.
by Sabina Sagynbayeva | Jun 15, 2022 | Career Navigation, Current Events, Interviews, Personal Experiences
What can chemistry tell us about galaxies? The #AAS240 keynote speaker thinks it is basically the “DNA” of a galaxy. Find out more at Dr. Allison Strom’s talk!
by Jana Steuer | Oct 7, 2021 | Daily Paper Summaries
Could there be life in an obscure place, such as around a free floating planet, a so-called rogue? Today’s paper looks at the possibility of liquid water on moons of starless planets!
by Jana Steuer | Sep 2, 2021 | Daily Paper Summaries
Traces of planets devoured by their host stars can possibly be found within the external layers of the stellar surface. These remains tell a story of the evolution and architecture of different planetary systems and grant new appreciation for our relatively calm environment.
by Catherine Manea | Jun 29, 2021 | Daily Paper Summaries
Ever wanted to take a peak into a Galactic archaeologist’s toolbox? Today’s authors take us on a great tour of theirs as they investigate several moving groups discovered pre-Gaia that may be part of the Milky Way halo!
