no code implementations • 10 Feb 2021 • Zahra Sattari, Bahram Mobasher, Nima Chartab, Behnam Darvish, Irene Shivaei, Nick Scoville, David Sobral
We study the mass-metallicity relation for 19 members of a spectroscopically-confirmed protocluster in the COSMOS field at $z=2. 2$ (CC2. 2), and compare it with that of 24 similarly selected field galaxies at the same redshift.
Astrophysics of Galaxies
no code implementations • 5 Jan 2021 • Nima Chartab, Bahram Mobasher, Alice E. Shapley, Irene Shivaei, Ryan L. Sanders, Alison L. Coil, Mariska Kriek, Naveen A. Reddy, Brian Siana, William R. Freeman, Mojegan Azadi, Guillermo Barro, Tara Fetherolf, Gene Leung, Sedona H. Price, Tom Zick
We find that at $z\sim1. 5$, the average metallicity of galaxies in overdensities with $M_*\sim10^{9. 8}M_\odot, 10^{10. 2}M_\odot$ and $10^{10. 8}M_\odot$ is higher relative to their field counterparts by $0. 094\pm0. 051$, $0. 068\pm0. 028$ and $0. 052\pm0. 043$ dex, respectively.
Astrophysics of Galaxies
no code implementations • 24 Dec 2020 • Federico Marocco, Peter R. M. Eisenhardt, John W. Fowler, J. Davy Kirkpatrick, Aaron M. Meisner, Edward F. Schlafly, S. Adam Stanford, Nelson Garcia, Dan Caselden, Michael C. Cushing, Roc M. Cutri, Jacqueline K. Faherty, Christopher R. Gelino, Anthony H. Gonzalez, Thomas H. Jarrett, Renata Koontz, Amanda Mainzer, Elijah J. Marchese, Bahram Mobasher, David J. Schlegel, Daniel Stern, Harry I. Teplitz, Edward L. Wright
This dataset adds two years to that used for the CatWISE Preliminary Catalog (Eisenhardt et al., 2020), bringing the total to six times as many exposures spanning over sixteen times as large a time baseline as the AllWISE catalog.
Instrumentation and Methods for Astrophysics
