Results 81 to 90 of about 771 (176)
VLBA Imaging of Central Engines in Radio‐Quiet Quasars [PDF]
The Astrophysical Journal, 2005 Accepted for ApJ, Vol. 621, March 1, 2005.
Ulvestad, James S. +2 more
openaire +2 more sources
ASCA view on high-redshift radio-quiet quasars [PDF]
AIP Conference Proceedings, 2001 We briefly discuss the latest ASCA results on the X-ray spectral properties of high-redshift radio-quiet quasars.
Vignali, C. +4 more
openaire +2 more sources
The Hosts Galaxies of Radio-Loud and Radio-Quiet Quasars
, 2001 Latex, 10 pages, including 6 postscript figures.
openaire +2 more sources
Broad Emission-Line Shifts in Quasars: An Orientation Measure for Radio-Quiet Quasars? [PDF]
The Astronomical Journal, 2002 37 pages, 11 figures (2 color), 2 tables. AJ in press.
Richards, GT +7 more
openaire +4 more sources
Probing the Low-radio-frequency Emission in PG Quasars with the uGMRT. II
The Astrophysical Journal Supplement SeriesWe present results from uGMRT 685 MHz observations of 87 QSOs belonging to the Palomar–Green (PG) quasar sample with z
Sanna Gulati +5 more
doaj +1 more source
FROM GALACTIC TO EXTRAGALACTIC JETS: A REVIEW
Acta Polytechnica, 2013 An analysis of the data that have recently become available from observing campaigns, including VLA, VLBA, and satellite instruments, shows some remarkable similarities and significant differences in the data from some epochs of galactic microquasars ...
James H. Beall
doaj +1 more source
Discovery of a Radio-loud/Radio-quiet Binary Quasar
The Astrophysical Journal, 1999 8 pages, 3 figures, to appear in Astrophysical Journal ...
Brotherton, M. S. +5 more
openaire +2 more sources
MULTIWAVELENGTH OBSERVATIONS OF RADIO-QUIET QUASARS WITH WEAK EMISSION LINES
, 2020 We present radio and X-ray observations, as well as optical light curves, for a subset of 26 BL Lac candidates from the Sloan Digital Sky Survey (SDSS) lacking strong radio emission and with z < 2.2.
Scott F Anderson +7 more
core
Radio and X-ray emission from disc winds in radio-quiet quasars
, 2010 It has been proposed that the radio spectra of radio-quiet quasars is produced by free-free emission in the optically thin part of an accretion disc wind. An important observational constraint on this model is the observed X-ray luminosity.
Blundell, Katherine +8 more
core +1 more source
Infrared polarimetry of radio-quiet quasars
The Astrophysical Journal, 1988 The polarizations of eight radio-quiet quasars have been measured at 2.2 microns. Of these, three are marginally detected with polarizations of 1.5-2 percent, while the rest have upper limits of 1-1.5 percent. This indicates that if a significant fraction of the infrared emission in these objects is due to synchrotron radiation, then either the ...
openaire +1 more source