English
Related papers

Related papers: Multi-wavelength Variability of the Broad Line Rad…

200 papers

Using the Rossi X-ray Timing Experiment (RXTE), we have observed both the Seyfert 1 galaxy Akn 120 and the broad-line radio galaxy 3C 120. Monitoring observations spanning 2 years plus intensive stares spanning several days have been…

Astrophysics · Physics 2009-11-10 K. Marshall , E. C. Ferrara , H. R. Miller , A. P. Marscher , G. Madejski

We present a study of the flux and spectral variability of the two broad-line radio galaxies (BLRGs) 3C 390.3 and 3C 120, observed almost daily with RXTE for nearly two months each in 1996 and 1997, respectively. Our original motivation for…

Astrophysics · Physics 2009-11-07 M. Gliozzi , R. M. Sambruna , M. Eracleous

We present the results of a 127 ks XMM-Newton observation of the broad-line radio galaxy 3C 120 performed simultaneously with RXTE. The time-averaged spectrum is Seyfert-like, with a reflection amplitude R ~ 0.5, and a neutral Fe K line…

Astrophysics · Physics 2009-11-10 D. R. Ballantyne , A. C. Fabian , K. Iwasawa

We present XMM-Newton observations of the radio galaxy 3C 120. The hard X-ray spectrum contains a marginally resolved Fe I K-alpha emission line with FWHM=9,000 km/s and an equivalent width of 57 eV. The line arises via fluorescence in a…

We report the analysis of Fermi Large Area Telescope data from five years of observations of the broad line radio galaxy 3C 120. The accumulation of larger data set results in the detection of high-energy $\gamma$-rays up to 10 GeV, with a…

High Energy Astrophysical Phenomena · Physics 2015-02-04 N. Sahakyan , D. Zargaryan , V. Baghmanyan

We present the results of extensive multi-frequency monitoring of the radio galaxy 3C 111 between 2004 and 2010 at X-ray (2.4--10 keV), optical (R band), and radio (14.5, 37, and 230 GHz) wave bands, as well as multi-epoch imaging with the…

We present the data and preliminary analysis for a series of 90 ROSAT HRI and two ASCA observations of the broad-line radio galaxy 3C 390.3. These data were obtained during the period 1995 January 2 to 1995 October 6 as part of an intensive…

We present the results of the analysis of an archival 15 ks XMM-Newton observation of the nearby (z=0.057) radio-loud source 3C445, optically classified as a Broad-Line Radio Galaxy. While the RGS data are of insufficient quality to allow a…

Astrophysics · Physics 2009-06-23 R. M. Sambruna , J. N. Reeves , V. Braito

We present simultaneous observations of the superluminal radio galaxy 3C120 performed with the ASCA and GRO (OSSE) satellites on February-March 1994, as well as an analysis of all the ROSAT archival data. The ASCA spectrum of this object…

Astrophysics · Physics 2009-10-30 Paola Grandi , R. M. Sambruna , L. Maraschi , G. Matt , C. M. Urry , R. F. Mushotzky

We present the analysis of Suzaku and XMM-Newton observations of the broad-line radio galaxy (BLRG) 3C 111. Its high energy emission shows variability, a harder continuum with respect to the radio quiet AGN population, and weak reflection…

High Energy Astrophysical Phenomena · Physics 2015-05-30 L. Ballo , V. Braito , J. N. Reeves , R. M. Sambruna , F. Tombesi

We investigate the short-term variability properties and the power spectral density (PSD) of the Broad-Line Radio Galaxy (BLRG) 3C 390.3 using observations made by XMM, RXTE, and Suzaku on several occasions between October 2004 and December…

High Energy Astrophysical Phenomena · Physics 2009-08-06 M. Gliozzi , I. E. Papadakis , M. Eracleous , R. M. Sambruna , D. R. Ballantyne , V. Braito , J. N. Reeves

We study a broad-band X-ray observation by BeppoSAX of the broad-line radio galaxy 3C 120. The primary X-ray continuum is well described by a power law with the photon index of Gamma=1.85+-0.05 and a high-energy break or a cutoff. The…

Astrophysics · Physics 2009-10-31 A. A. Zdziarski , P. Grandi

We present the analysis of five joint XMM-Newton/NuSTAR observations, 20 ks each and separated by 12 days, of the broad-line radio galaxy 3C 382. The data were obtained as part of a campaign performed in September-October 2016…

We present the results of a long-look monitoring of 3C273 with RXTE between 1996 and 2000. A total of 230 observations amounts to a net exposure of 845ksec, with this spectral and variability analysis of 3C273 covering the longest…

We present analysis of the light curve from the ROSAT HRI monitoring observations of the broad-line radio galaxy 3C 390.3. Observed every three days for about 9 months, this is the first well sampled X-ray light curve on these time scales.…

Astrophysics · Physics 2009-10-30 K. M. Leighly , Paul T. O'Brien

In the paper, we investigate correlation between broad-line and radio variations for broad-line radio galaxy 3C 120. By the z-transformed discrete correlation function method and the model-independent flux randomization/random subset…

High Energy Astrophysical Phenomena · Physics 2014-01-10 H. T. Liu , J. M. Bai , J. M. Wang , S. K Li

Broad line radio galaxies (BLRGs) are a rare type of radio-loud AGN, in which the broad optical permitted emission lines have been detected in addition to the extended jet emission. Here we report on deep (40ksec x4) observations of the…

During 1995, the broad-line radio galaxy 3C 390.3 is the subject of a multi-wavelength monitoring campaign comprised of ROSAT HRI, IUE, and ground based optical, infrared and radio observations. We report preliminary results from the…

We present the first X-ray monitoring observations of the X-ray bright FRI radio galaxy NGC6251 observed with RXTE for 1 year. The primary goal of this study is to shed light on the origin of the X-rays, by investigating the spectral…

Astrophysics · Physics 2009-11-13 M. Gliozzi , I. E. Papadakis , R. M. Sambruna
‹ Prev 1 2 3 10 Next ›