A
Alexander J. Mendez
Researcher at Johns Hopkins University
Publications - 35
Citations - 2900
Alexander J. Mendez is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Galaxy & Stellar mass. The author has an hindex of 23, co-authored 35 publications receiving 2696 citations. Previous affiliations of Alexander J. Mendez include University of California, San Diego & Hewlett-Packard.
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Journal ArticleDOI
PRIMUS: Constraints on Star Formation Quenching and Galaxy Merging, and the Evolution of the Stellar Mass Function from z = 0-1
John Moustakas,Alison L. Coil,Alison L. Coil,James Aird,Michael R. Blanton,Richard J. Cool,Daniel J. Eisenstein,Alexander J. Mendez,Kenneth C. Wong,Guangtun Zhu,Stéphane Arnouts +10 more
TL;DR: In this paper, the authors measured the evolution of the stellar mass function (SMF) from z = 0−1 using multi-wavelength imaging and spectroscopic redshifts from the PRism MUlti-object Survey (PRIMUS) and the Sloan Digital Sky Survey (SDSS).
Journal ArticleDOI
METALLICITY EVOLUTION OF DAMPED Lyα SYSTEMS OUT TO z ∼ 5
TL;DR: In this article, chemical abundance measurements for 47 damped Lyα (DLA) systems, 30 at z > 4, observed with the Echellette Spectrograph and Imager and the High Resolution Echelle Spectrometer on the Keck telescopes are presented.
Journal ArticleDOI
Metallicity Evolution of Damped Lyman-alpha Systems out to z~5
TL;DR: In this paper, chemical abundance measurements for 47 damped Lyman-alpha systems (DLAs), 30 at z>4, observed with the Echellette Spectrograph and Imager and the High Resolution Echelle Spectrometer on the Keck telescopes are presented.
Journal ArticleDOI
A radio jet from the optical and X-ray bright stellar tidal disruption flare ASASSN-14li
S. van Velzen,G. E. Anderson,G. E. Anderson,Nicholas C. Stone,Morgan Fraser,Thomas Wevers,Brian D. Metzger,Peter G. Jonker,Peter G. Jonker,A. J. van der Horst,Tim D. Staley,Alexander J. Mendez,James Miller-Jones,Simon Hodgkin,Heather Campbell,Rob Fender +15 more
TL;DR: Radio follow-up observations of known thermal stellar tidal disruption flares (TDFs) are monitored and a detection of variable radio emission from a thermal TDF, which is interpreted as originating from a newly launched jet, suggests that all TDFs could be accompanied by a jet.
Journal ArticleDOI
The prism multi-object survey (primus). ii. data reduction and redshift fitting
Richard J. Cool,John Moustakas,Michael R. Blanton,Scott Burles,Alison L. Coil,Daniel J. Eisenstein,Kenneth C. Wong,Guangtun Zhu,James Aird,Rebecca A. Bernstein,Adam S. Bolton,David W. Hogg,Alexander J. Mendez +12 more
TL;DR: The PRIMUS survey as mentioned in this paper is a spectroscopic galaxy redshift survey to z ~ 1 completed with a low-dispersion prism and slitmasks allowing for simultaneous observations of ~2500 objects over 0.18 deg2.