A
A. Dey
Researcher at Harvard University
Publications - 11
Citations - 588
A. Dey is an academic researcher from Harvard University. The author has contributed to research in topics: Galaxy cluster & Galaxy. The author has an hindex of 8, co-authored 11 publications receiving 564 citations.
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Journal ArticleDOI
THE CLUSTER AND FIELD GALAXY ACTIVE GALACTIC NUCLEUS FRACTION AT z = 1-1.5: EVIDENCE FOR A REVERSAL OF THE LOCAL ANTICORRELATION BETWEEN ENVIRONMENT AND AGN FRACTION
Paul Martini,Paul Martini,Eric D. Miller,Mark Brodwin,S. A. Stanford,S. A. Stanford,Anthony H. Gonzalez,Marshall W. Bautz,Ryan C. Hickox,D. Stern,Peter Eisenhardt,Audrey Galametz,Dara Norman,Buell T. Jannuzi,A. Dey,S. S. Murray,C. Jones,Michael J. I. Brown +17 more
TL;DR: In this paper, a new measurement of the AGN fraction in a sample of 13 clusters of galaxies (M ≥ 1014 M ☉) at 1 < z < 1.5 is presented, where is the absolute magnitude of the break in the galaxy luminosity function at the cluster redshift in the IRAC 3.6 μm bandpass.
Journal ArticleDOI
The Cluster and Field Galaxy AGN Fraction at z = 1 to 1.5: Evidence for a Reversal of the Local Anticorrelation Between Environment and AGN Fraction
Paul Martini,Eric D. Miller,M. Brodwin,S. A. Stanford,Anthony H. Gonzalez,Marshall W. Bautz,Ryan C. Hickox,D. Stern,Peter Eisenhardt,Audrey Galametz,Donald A. Norman,Buell T. Jannuzi,A. Dey,S. S. Murray,C. Jones,Michael J. I. Brown +15 more
TL;DR: In this article, a new measurement of the AGN fraction in a sample of 13 clusters of galaxies (M >= 10^{14} Msun) at 1 = 10^{44} erg/s was presented, which is 30 times greater than the 3sigma upper limit on the value for AGN of similar luminosity at z~0.25.
Journal ArticleDOI
IDCS J1426.5+3508: SUNYAEV-ZEL’DOVICH MEASUREMENT OF A MASSIVE INFRARED-SELECTED CLUSTER AT z = 1.75
M. Brodwin,M. Brodwin,Anthony H. Gonzalez,S. A. Stanford,S. A. Stanford,T. Plagge,Daniel P. Marrone,John E. Carlstrom,A. Dey,Peter Eisenhardt,Cosimo Fedeli,D. Gettings,Buell T. Jannuzi,Marshall Joy,E. M. Leitch,C. Mancone,Gregory F. Snyder,D. Stern,Gregory R. Zeimann +18 more
TL;DR: In this paper, a Sunyaev-Zel'dovich (SZ) decrement is detected toward the IDCS J1426.5+3508, an infrared-selected galaxy cluster at z = 1.75.
Journal ArticleDOI
IDCS J1426.5+3508: Sunyaev-Zel'dovich Measurement of a Massive IR-selected Cluster at z=1.75
M. Brodwin,Anthony H. Gonzalez,S. A. Stanford,T. Plagge,Daniel P. Marrone,J. E. Carlstrom,A. Dey,Peter Eisenhardt,Cosimo Fedeli,D. Gettings,Buell T. Jannuzi,Marshall Joy,E. M. Leitch,C. Mancone,Gregory F. Snyder,D. Stern,Greg Zeimann +16 more
TL;DR: In this paper, a Sunyaev-Zel'dovich decrement is detected towards the IDCS J1426.5+3508 galaxy cluster, indicating a total mass of M200 = (4.3 +/- 1.1) x 10^{14} Msun in agreement with the approximate X-ray mass of 5 x 10−14 Msun.
Journal ArticleDOI
The Spitzer South Pole Telescope Deep Field: Survey Design and Infrared Array Camera Catalogs
M. L. N. Ashby,S. A. Stanford,S. A. Stanford,Mark Brodwin,Anthony H. Gonzalez,J. Martinez-Manso,James G. Bartlett,Bradford Benson,Lindsey Bleem,T. M. Crawford,A. Dey,Alan Dressler,Peter Eisenhardt,Audrey Galametz,Buell T. Jannuzi,Daniel P. Marrone,Simona Mei,Simona Mei,Adam Muzzin,Florian Pacaud,Marguerite Pierre,D. Stern,Joaquin Vieira +22 more
TL;DR: The Spitzer South Pole Telescope Deep Field (SSDF) as discussed by the authors is a wide-area survey using Spitzer's Infrared Array Camera (IRAC) to cover 94 deg^2 of extragalactic sky, making it the largest IRAC survey completed to date outside the Milky Way midplane.