260 citations · 611 across the 8 of their papers we have counts for
8 papers
H.E.S.S. detection of very-high-energy gamma-ray emission from the quasar PKS 0736+017
H. E. S. S. Collaboration, :, H. Abdalla +225
Flat-spectrum radio-quasars (FSRQs) are rarely detected at very-high-energies (VHE; E>100 GeV) due to their low-frequency-peaked SEDs. At present, only 6 FSRQs are known to emit VH…
The Debris Disk Around HR 8799
K. Y. L. Su, G. H. Rieke, K. R. Stapelfeldt +6
We have obtained a full suite of Spitzer observations to characterize the debris disk around HR 8799 and to explore how its properties are related to the recently discovered set of…
High-Redshift SDSS Quasars with Weak Emission Lines
Aleksandar M. Diamond-Stanic, Xiaohui Fan, W. N. Brandt +14
We identify a sample of 74 high-redshift quasars (z>3) with weak emission lines from the Fifth Data Release of the Sloan Digital Sky Survey and present infrared, optical, and radio…
The Exceptionally Large Debris Disk around γOphiuchi
K. Y. L. Su, G. H. Rieke, K. R. Stapelfeldt +4
Spitzer images resolve the debris disk around γOphiuchi at both 24 and 70 um. The resolved images suggest a disk radius of ~520 AU at 70 um and >=260 AU at 24 um. The images, along…
Discovery of a Magnetic White Dwarf/Probable Brown Dwarf Short-Period Binary
G. D. Schmidt, P. Szkody, N. M. Silvestri +3
The magnetic white dwarf SDSS J121209.31+013627.7 exhibits a weak, narrow Halpha emission line whose radial velocity and strength are modulated on a period of ~90 minutes. Though i…
Co-moving space density of X-ray-selected Active Galactic Nuclei
J. D. Silverman, P. J. Green, W. A. Barkhouse +11
For measurement of the AGN luminosity function and its evolution, X-ray selection samples all types of AGN and provides reduced obscuration bias in comparison with UV-excess or opt…