Search Publications
The MOSDEF Survey: The Evolution of the Mass-Metallicity Relation from z = 0 to z 3.3
Barro, Guillermo; Siana, Brian; Shapley, Alice E. +15 more
We investigate the evolution of galaxy gas-phase metallicity (O/H) over the range z = 0-3.3 using samples of ~300 galaxies at z ~ 2.3 and ~150 galaxies at z ~ 3.3 from the MOSDEF survey. This analysis crucially utilizes different metallicity calibrations at z ~ 0 and z > 1 to account for evolving interstellar medium (ISM) conditions. We find si…
A Test of the Cosmological Principle with Quasars
Secrest, Nathan J.; Sarkar, Subir; Mohayaee, Roya +3 more
We study the large-scale anisotropy of the universe by measuring the dipole in the angular distribution of a flux-limited, all-sky sample of 1.36 million quasars observed by the Wide-field Infrared Survey Explorer (WISE). This sample is derived from the new CatWISE2020 catalog, which contains deep photometric measurements at 3.4 and 4.6 µm f…
Parallax Systematics and Photocenter Motions of Benchmark Eclipsing Binaries in Gaia EDR3
Torres, Guillermo; Stassun, Keivan G.
Previous analyses of various standard candles observed by the Gaia satellite have reported statistically significant systematics in the parallaxes that have improved from ∼250 µas in the first data release (DR1) to 50-80 µas in the second data release (DR2). Here we examine the parallaxes newly reported in the Gaia early third data rel…
The Evolution of the IR Luminosity Function and Dust-obscured Star Formation over the Past 13 Billion Years
Kartaltepe, J. S.; Yun, M. S.; Clements, D. L. +25 more
We present the first results from the Mapping Obscuration to Reionization with ALMA (MORA) survey, the largest Atacama Large Millimeter/submillimeter Array (ALMA) blank-field contiguous survey to date (184 arcmin2) and the only at 2 mm to search for dusty star-forming galaxies (DSFGs). We use the 13 sources detected above 5σ to estimate…
Reconstructing the Last Major Merger of the Milky Way with the H3 Survey
Conroy, Charlie; Ting, Yuan-Sen; Cargile, Phillip A. +8 more
Several lines of evidence suggest that the Milky Way underwent a major merger at z ~ 2 with the Gaia-Sausage-Enceladus (GSE) galaxy. Here we use H3 Survey data to argue that GSE entered the Galaxy on a retrograde orbit based on a population of highly retrograde stars with chemistry similar to the largely radial GSE debris. We present the first tai…
The Hubble Constant from Infrared Surface Brightness Fluctuation Distances
Ma, Chung-Pei; Greene, Jenny E.; Blakeslee, John P. +2 more
We present a measurement of the Hubble constant H0 from surface brightness fluctuation (SBF) distances for 63 bright, mainly early-type galaxies out to 100 Mpc observed with the WFC3/IR on the Hubble Space Telescope (HST). The sample is drawn from several independent HST imaging programs using the F110W bandpass, with the majority of th…
TauREx 3: A Fast, Dynamic, and Extendable Framework for Retrievals
Waldmann, I. P.; Tinetti, G.; Changeat, Q. +1 more
TauREx 3 is the next generation of the TauREx exoplanet atmospheric retrieval framework for Windows, Mac, and Linux. It is a complete rewrite with a full Python stack that makes it easy-to-use, high-performance, dynamic, and flexible. The new main TauREx program is built with modularity in mind, allowing the user to augment its functionalities wit…
Updated BaSTI Stellar Evolution Models and Isochrones. II. α-enhanced Calculations
Salaris, Maurizio; Mucciarelli, Alessio; Silva Aguirre, Victor +7 more
This is the second paper of a series devoted to presenting an updated release of the BaSTI (a Bag of Stellar Tracks and Isochrones) stellar model and isochrone library. Following the publication of the updated solar-scaled library, here we present the library for an α-enhanced heavy element distribution. These new α-enhanced models account for all…
Charting the Galactic Acceleration Field. I. A Search for Stellar Streams with Gaia DR2 and EDR3 with Follow-up from ESPaDOnS and UVES
Bianchini, Paolo; Martin, Nicolas; Malhan, Khyati +10 more
We present maps of the stellar streams detected in the Gaia Data Release 2 (DR2) and Early Data Release 3 (EDR3) catalogs using the STREAMFINDER algorithm. We also report the spectroscopic follow-up of the brighter DR2 stream members obtained with the high-resolution CFHT/ESPaDOnS and VLT/UVES spectrographs as well as with the medium-resolution NT…
Galaxy Stellar Mass Functions from z 10 to z 6 using the Deepest Spitzer/Infrared Array Camera Data: No Significant Evolution in the Stellar-to-halo Mass Ratio of Galaxies in the First Gigayear of Cosmic Time
Illingworth, Garth D.; Labbé, Ivo; Bouwens, Rychard J. +3 more
We present new stellar mass functions at z ~ 6, z ~ 7, z ~ 8, z ~ 9 and, for the first time, z ~ 10, constructed from ~800 Lyman-break galaxies previously identified over the eXtreme Deep Field and Hubble Ultra-Deep Field parallel fields and the five Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey fields. Our study is distinctive du…