We present short \chandra observations of twelve bright (i<18) z_em~1.5 quasars from the Sloan Digital Sky Survey chosen to have significantly redder optical colors than most quasars at the same redshift. Of the five quasars with optical properties most consistent with dust reddening at the quasar redshift, four show indirect evidence of moderate X-ray absorption (inferred N_H~10^22 cm^-2) with a dust-to-gas ratio <1% of the SMC value. The remaining seven objects show no evidence for even moderate intrinsic X-ray absorption. Thus, while optically red quasars are marginally more likely to show signatures of X-ray absorption than optically selected quasars with normal colors, dust-reddened type 1 AGN (as opposed to fully obscured type 2 AGN) ...
We present a sample of 120 dust-reddened quasars identified by matching radio sources detected at 1....
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
The authors present results of a study of 12 dust-reddened quasars with 0.4 < z < 2.65 and red...
We have selected a sample of 12 dust-reddened quasars with extremely red colors, reddenigs and redsh...
We have selected a sample of 12 dust-reddened quasars with extremely red colors, reddenigs and redsh...
We present results on a survey to find extremely dust-reddened Type 1 quasars. Combining the FIRST r...
In a survey of quasar candidates selected by matching the FIRST and 2MASS catalogs, we have found tw...
Combining radio observations with optical and infrared color selection--demonstrated in our pilot st...
We present results on a multiwavelength campaign to identify the nature of dust-reddened Type 1 quas...
We present results on a multiwavelength campaign to identify the nature of dust-reddened Type 1 quas...
Hard X-ray surveys have uncovered a large population of heavily obscured AGNs. They also reveal a po...
We present the results of a pilot survey to find dust-reddened quasars by matching the Faint Images ...
We have searched in the XMM-Newton public archive for quasars in the Sloan Digital Sky Survey First ...
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
We present a sample of 120 dust-reddened quasars identified by matching radio sources detected at 1....
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
The authors present results of a study of 12 dust-reddened quasars with 0.4 < z < 2.65 and red...
We have selected a sample of 12 dust-reddened quasars with extremely red colors, reddenigs and redsh...
We have selected a sample of 12 dust-reddened quasars with extremely red colors, reddenigs and redsh...
We present results on a survey to find extremely dust-reddened Type 1 quasars. Combining the FIRST r...
In a survey of quasar candidates selected by matching the FIRST and 2MASS catalogs, we have found tw...
Combining radio observations with optical and infrared color selection--demonstrated in our pilot st...
We present results on a multiwavelength campaign to identify the nature of dust-reddened Type 1 quas...
We present results on a multiwavelength campaign to identify the nature of dust-reddened Type 1 quas...
Hard X-ray surveys have uncovered a large population of heavily obscured AGNs. They also reveal a po...
We present the results of a pilot survey to find dust-reddened quasars by matching the Faint Images ...
We have searched in the XMM-Newton public archive for quasars in the Sloan Digital Sky Survey First ...
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
We present a sample of 120 dust-reddened quasars identified by matching radio sources detected at 1....
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be un...