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We present the first high spectral resolution X-ray observation of the broad-line radio galaxy 3C 390.3 obtained with the high energy transmission grating (HETG) spectrometer on board the Chandra X-ray Observatory. The spectrum shows…

High Energy Astrophysical Phenomena · Physics 2016-10-26 F. Tombesi , J. N. Reeves , T. Kallman , C. S. Reynolds , R. F. Mushotzky , V. Braito , E. Behar , M. A. Leutenegger , M. Cappi

We review the soft X-ray properties of 3C 390.3, 3C 120, 3C 382 and 3C 445, the only Broad Line Radio Galaxies (BLRG) for which good quality gratings data are currently available. The XMM-Newton/RGS data of 3C 390.3 and 3C 120 were…

High Energy Astrophysical Phenomena · Physics 2015-05-30 E. Torresi , P. Grandi , E. Costantini , G. G. C. Palumbo

We show the combined spectral analysis of \emph{Chandra} high energy transmission grating (HETG) and \emph{XMM-Newton} reflection grating spectrometer (RGS) observations of the broad-line radio galaxy 3C 111. The source is known to show…

High Energy Astrophysical Phenomena · Physics 2017-06-28 F. Tombesi , C. S. Reynolds , R. F. Mushotzky , E. Behar

We present evidence for X-ray line emitting and absorbing gas in the nucleus of the Broad-Line Radio Galaxy (BLRG), 3C 445. A 200ks Chandra LETG observation of 3C 445 reveals the presence of several highly ionized emission lines in the soft…

High Energy Astrophysical Phenomena · Physics 2015-05-20 J. N. Reeves , J. Gofford , V. Braito , R. Sambruna

We present a detailed spectral and spatial analysis of the X-ray properties of the compact and unusual radio galaxy 3C 346, combining information from ROSAT and ASCA. The dominant component of X-ray emission (~ 10^44 ergs/s in each of the…

Astrophysics · Physics 2009-10-31 D. M. Worrall , M. Birkinshaw

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

Recent high-resolution measurements suggest that the soft X-ray spectrum of obscured Radio Galaxies (RG) exhibits signatures of photoionised gas (e.g. 3C 445 and 3C 33) similar to those observed in radio-quiet obscured Active Galactic…

High Energy Astrophysical Phenomena · Physics 2019-08-14 E. Torresi , P. Grandi , A. L. Longinotti , M. Guainazzi , G. G. C. Palumbo , F. Tombesi , A. Nucita

Here we present the results of a Suzaku observation of the Broad Line Radio Galaxy 3C 445. We confirm the results obtained with the previous X-ray observations which unveiled the presence of several soft X-ray emission lines and an overall…

High Energy Astrophysical Phenomena · Physics 2015-05-27 V. Braito , J. N. Reeves , R. M. Sambruna , J. Gofford

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 observed the Seyfert I active galaxy/broad line radio galaxy 3C120 with the Chandra high energy transmission gratings and present an analysis of the soft X-ray spectrum. We identify the strongest absorption feature (detected at >99.9%…

Astrophysics · Physics 2009-11-10 B. McKernan , T. Yaqoob , R. Mushotzky , I. M. George , T. J. Turner

We report results of an 18 ks exposure with the ACIS instrument on Chandra of the powerful z = 0.62 radio galaxy 3C 220.1. The X-ray emission separates into cluster gas of emission-weighted kT ~ 5 keV and 0.7-12 keV luminosity (to a radius…

Astrophysics · Physics 2009-11-06 D. M. Worrall , M. Birkinshaw , M. J. Hardcastle , C. R. Lawrence

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 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

An 80 ksec Chandra ACIS observation of the radio galaxy 3C 452 is reported. A diffuse X-ray emission associated with the lobes has been detected with high statistical significance, together with the X-ray nucleus of the host galaxy. The…

Astrophysics · Physics 2009-11-07 N. Isobe , M. Tashiro , K. Makishima , N. Iyomoto , M. Suzuki , M. M. Murakami , M. Mori , K. Abe

All the observations available in the Chandra and XMM-Newton archives have been used to investigate the X-ray spectral properties of 3C 33. In this paper is presented a complete X-ray analysis of the nuclear emission of this narrow line…

High Energy Astrophysical Phenomena · Physics 2009-11-13 E. Torresi , P. Grandi , M. Guainazzi , G. G. C. Palumbo , G. Ponti , S. Bianchi

We present an ASCA observation of the broad line radio galaxy 3C111. The X-ray spectrum is well described by a model consisting of a photoelectrically-absorbed power-law form. The inferred absorbing column density is significantly greater…

Astrophysics · Physics 2009-10-30 C. S. Reynolds , K. Iwasawa , C. S. Crawford , A. C. Fabian

We report the detection of 21-cm HI absorption towards the core of the Fanaroff-Riley II radio galaxy 3C452 (J2245+3941). The absorption profile is well resolved into three components; the strongest and narrowest component being coincident…

Astrophysics · Physics 2009-11-11 Neeraj Gupta , D. J. Saikia

We present a detailed analysis of the gas conditions in the H_2 luminous radio galaxy 3C326N at z~0.1, which has a low star formation rate (SFR~0.07 M_sun/yr) in spite of a gas surface density similar to those in starburst galaxies. Its…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 N. P. H. Nesvadba , F. Boulanger , P. Salome , P. Guillard , M. D. Lehnert , P. Ogle , P. Appleton , E. Falgarone , G. Pineau des Forets

Chandra X-ray observations of the high redshift (z =1.532) radio-loud quasar 3C270.1 in 2008 February show the nucleus to have a power-law spectrum, Gamma = 1.66 +/- 0.08, typical of a radio-loud quasar, and a marginally-detected Fe Kalpha…

We examine the properties of the X-ray gas in the central regions of the distant (z=0.46), X-ray luminous cluster of galaxies surrounding the powerful radio source 3C 295, using observations made with the Chandra Observatory. Between radii…

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