A Chandra observation of the distant radio galaxy B2 0902+343: a powerful obscured active galaxy

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Chandra observation of the distant radio galaxy B 2 0902 + 343 : a powerful obscured active galaxy

We report a Chandra observation of the z = 3.395 radio galaxy B2 0902+343. The unresolved X-ray source is centred on the active nucleus. The spectrum is well fit by a flat power law of photon index of Γ ∼ 1.1 with intrinsic absorption of 8 × 10 22 cm −2 , and an intrinsic 2– 10 keV luminosity of 3.3 × 10 45 erg s −1. More complex models which allow for a steeper spectral index cause the column ...

متن کامل

A Chandra Observation of the Circinus Galaxy

We report on a recent Chandra ACIS-S observation of the Circinus galaxy. These observations confirm that the nuclear spectrum results from reflection of a hard X-ray continuum by “neutral” matter. The nuclear X-ray emission is extended by ∼ 60 pc in the general direction of the optical “ionization cone”. An image in the Fe Kα line has been made and shows that this emission extends up to 200 pc ...

متن کامل

A Large-scale Shock Surrounding a Powerful Radio Galaxy

We report the Chandra detection of a large-scale shock, on scales of 200 kpc, in the cluster surrounding the powerful radio galaxy 3C 444 (PKS 2211−17). Our 20-ks Chandra observation allows us to identify a clear surface brightness drop around the outer edge of the radio galaxy, which is likely to correspond to a spheroidal shock propagating into the intracluster medium. We measure a temperatur...

متن کامل

Chandra Reveals Twin X-ray Jets in the Powerful Fr Ii Radio Galaxy 3c 353

We report X-ray imaging of the powerful FR II radio galaxy 3C 353 using the Chandra X-ray Observatory. 3C 353’s two 4′′-wide and 2′-long jets allow us to study in detail the internal structure of the large-scale relativistic outflows at both radio and X-ray photon energies with the sub-arcsecond spatial resolution provided by the VLA and Chandra instruments. In a 90 ks Chandra observation, we h...

متن کامل

Chandra Observation of Lmxbs in the Elliptical Galaxy M 84

We present characteristics of the X-ray point source population in the M84 galaxy, observed by Chandra ACIS-S. We find an excess in the number of sources centered on M84, with a spatial distribution closely corresponding to the M84 stellar light. Given an absence of recent star-formation, accreting binaries are the only candidates for the M84 X-ray sources. The majority of M84 sources (with lum...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Notices of the Royal Astronomical Society

سال: 2002

ISSN: 0035-8711,1365-2966

DOI: 10.1046/j.1365-8711.2002.05452.x