393 citations · 4.6k across the 74 of their papers we have counts for
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Large amounts of optically-obscured star formation in the host galaxies of some type-2 quasars
M. Lacy, A. Sajina, A. O. Petric +5
We present Hubble Space Telescope images, and spectral energy distributions from optical to infrared wavelengths for a sample of six 0.3<z<0.8 type-2 quasars selected in the mid-in…
HI velocity dispersion in NGC 1058
A. O. Petric, M. P. Rupen
We present excellent resolution and high sensitivity Very Large Array (VLA) observations of the 21cm HI line emission from the face-on galaxy NGC 1058, providing the first reliable…
Dust and PAH emission in the star-forming active nucleus of NGC 1097
R. E. Mason, N. A. Levenson, C. Packham +4
The nucleus of the nearby galaxy, NGC 1097, is known to host a young, compact (r < 9 parsec) nuclear star cluster as well as a low-luminosity active galactic nucleus (AGN). It has…
Optical spectroscopy and X-ray detections of a sample of quasars and AGN selected in the mid-infrared from two Spitzer wide-area surveys
M. Lacy, A. Petric, A. Sajina +5
We present optical spectroscopy of a sample of 77 luminous AGN and quasars selected on the basis of their mid-infrared colors. Our objects are selected from the Spitzer Extragalact…
A Direct Upper Limit on the Density of Cosmological Dust from the Absence of an X-ray Scattering Halo around the z=4.3 QSO 1508+5714
A. O. Petric, G. A. Telis, F. Paerels +1
We report on the results of a search for an intergalactic X-ray dust scattering halo in a deep observation of the bright, high-redshift quasar QSO 1508+5714 with the Chandra X-ray…
Radio and millimeter observations of z~2 luminous QSOs
A. Petric, C. L. Carilli, F. Bertoldi +3
We present Very Large Array observations at 1.4 and 5 GHz of a sample of 16 quasi-stellar objects (QSOs) at z = 1.78 to 2.71. Half of the chosen quasars are bright at mm wavelength…