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Statistics of Two-point Correlation and Network Topology for Lyman Alpha Emitters at
Sungryong Hong, Arjun Dey, Kyung-Soo Lee +9
We investigate the spatial distribution of Lyman alpha emitting galaxies (LAEs) at , selected from the NOAO Deep Wide-Field Survey (NDWFS), using two-point statisti…
Systematically Measuring Ultra Diffuse Galaxies (SMUDGes). I. Survey Description and First Results in the Coma Galaxy Cluster and Environs
Dennis Zaritsky, Richard Donnerstein, Arjun Dey +6
We present a homogeneous catalog of 275 large (effective radius 5.3 arcsec) ultra-diffuse galaxy (UDG) candidates lying within an 290 square degree region surro…
A census of galaxy constituents in a Coma Progenitor observed at z>3
Ke Shi, Kyoung-Soo Lee, Arjun Dey +15
We present a detailed census of galaxies in and around PC217.96+32.3, a spectroscopically confirmed Coma analog at z=3.78. Diverse galaxy types identified in the field include Lya…
Photometric calibration for the Beijing-Arizona Sky Survey and Mayall z-band Legacy Survey
Zhimin Zhou, Xu Zhou, Hu Zou +14
We present the photometric calibration of the Beijing-Arizona Sky Survey (BASS) and Mayall z-band Legacy Survey (MzLS), which are two of the three wide-field optical legacy imaging…
A Mid-IR Selected Changing-Look Quasar and Physical Scenarios for Abrupt AGN Fading
Daniel Stern, Barry McKernan, Matthew J. Graham +11
We report a new changing-look quasar, WISE~J105203.55+151929.5 at , found by identifying highly mid-IR variable quasars in the WISE/NEOWISE data stream. Compared to multi-…
A new physical interpretation of optical and infrared variability in quasars
Nicholas P. Ross, K. E. Saavik Ford, Matthew Graham +8
Changing-look quasars are a recently identified class of active galaxies in which the strong UV continuum and/or broad optical hydrogen emission lines associated with unobscured qu…