6 papers
Probing the environment around GW170817 with DESI: insights on galaxy group peculiar velocities for standard siren measurements
A. J. Amsellem, A. Palmese, K. Douglass +56
We present a new measurement of the Hubble constant, , following the gravitational wave event GW170817 and Dark Energy Spectroscopic Instrument (DESI) observations. A standard…
Dwarf galaxy halo masses from spectroscopic and photometric lensing in DESI and DES
Helena Treiber, Alexandra Amon, Risa H. Wechsler +46
We present the most precise and lowest-mass weak lensing measurements of dwarf galaxies to date, enabled by spectroscopic lenses from the Dark Energy Spectroscopic Instrument (DESI…
Stellar Mass Calibrations for Local Low-Mass Galaxies
Mithi A. C. de los Reyes, Yasmeen Asali, Risa Wechsler +10
The stellar masses of galaxies are measured using integrated light via several methods -- however, few of these methods were designed for low-mass ($M_{\star}\lesssim10^{8}\rm{M_{\…
Neutron-capture Element Abundances of 491 Stars in Milky Way Dwarf Satellite Galaxies from Medium-Resolution Spectra
Lauren E. Henderson, Evan N. Kirby, Mithi A. C. de los Reyes +2
The chemical compositions of evolved stars in Local Group dwarf spheroidal galaxies (dSphs) provide insight into the galaxy's past star formation and nucleosynthesis. Neutron-captu…
Tripling the Census of Dwarf AGN Candidates Using DESI Early Data
Ragadeepika Pucha, S. Juneau, Arjun Dey +46
Using early data from the Dark Energy Spectroscopic Instrument (DESI) survey, we search for AGN signatures in 410,757 line-emitting galaxies. By employing the BPT emission-line rat…
COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Strong Gravitational Lenses in DECaLS
Simon D. Mork, Michael D. Gladders, Gourav Khullar +27
We estimate the Einstein-radius-enclosed total mass for 177 cluster-scale strong gravitational lenses identified by the ChicagO Optically selected Lenses Located At the Margins of…