PKS 1510-089: a rare example of a flat spectrum radio quasar with a very high-energy emission
نویسندگان
چکیده
منابع مشابه
Fermi /lat Discovery of Gamma-ray Emission from the Flat-spectrum Radio Quasar Pks 1454-354
We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy γ−ray (GeV) emission from the flat-spectrum radio quasar PKS 1454-354 (z = 1.424). On 4 September 2008 the source rose to a peak flux of (3.5±0.7)×10 ph cm s (E > 100 MeV) on a time scale of hours and then slowly dropped over the following two days. No significant spectral change...
متن کاملThe Inner Jet of the Quasar PKS 1510−089 as Revealed by Multi-waveband Monitoring
Alan P. Marscher, Svetlana G. Jorstad, Francesca D. D’Arcangelo, Dipesh Bhattarai, Brian Taylor, Alice R. Olmstead, and Emily Manne-Nicholas Institute for Astrophysical Research, Boston University, 725 Commonwealth Avenue, Boston, MA 02215 USA∗ Valeri M. Larionov, Vladimir A. Hagen-Thorn, Tatiana S. Konstantinova, Elena G. Larionova, Liudmila V. Larionova, Daria A. Melnichuk, Dmitry A. Blinov, ...
متن کاملMultiwavelength Observations of the Powerful γ-ray Quasar PKS 1510−089: Clues on the Jet Composition
We present the results from a multiwavelength campaign conducted in August 2006 of the powerful γ-ray quasar PKS 1510−089 (z = 0.361). This campaign commenced with a deep Suzaku observation lasting three days for a total exposure time of 120 ks, and continued with Swift monitoring over 18 days. Besides Swift observations, which sampled the optical/UV flux in all 6 UVOT filters as well as the X-...
متن کاملPks 1510−089: a Head-on View of a Relativistic Jet
The gamma-ray blazar PKS 1510−089 has a highly superluminal milli-arcsecond jet at a position angle (PA) of −28 and an arcsecond jet with an initial PA of 155. With a ∆PA of 177 between the arcsecond and milliarcsecond jets, PKS 1510−089 is perhaps the most highly misaligned radio jet ever observed and serves as a graphic example of projection effects in a highly beamed relativistic jet. Here w...
متن کاملOptical Monitoring of PKS 1510−089: A Binary Black Hole System?
Three deep flux minima were observed with nearly the same time-scales and intervals for the blazar PKS 1510−089 in the past few years. A binary black hole system was proposed to be at the nucleus of this object, and a new minimum was predicted to occur in 2002 March. We monitored this source with a 60/90 cm Schmidt telescope from 2002 February to April. In combination with the data obtained by ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2014
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201322205