5 X - ray Bright QSO ’ s around NGC 3079

نویسنده

  • H. Arp
چکیده

NGC 3079 is a very active, disturbed galaxy which has been observed to have X-ray and radio ejections from it as well as an optical superbubble along its minor axis. Here we show that the brightest X-ray sources within about 40 arcmin are in large excess of background values. The X-ray sources are identified as quasars and AGN's which are aligned and spaced across the Seyfert nucleus to a degree which is unlikely to be due to chance. The famous double quasar which has been interpreted as a gravitational lens is discussed in terms of the the X-ray and ULX sources which appear associated with NGC 3079.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Astronomy and Astrophysics Ngc 3079: X-ray Emission from the Nuclear Super-bubble and Halo

We report the results of the spatial and spectral analysis of the ROSAT HRI and PSPC observations of the edge-on spiral galaxy NGC 3079. We detected several sources in the field of NGC 3079 with both PSPC and HRI, and complex emission from the inner 5 ′ around NGC 3079. We have identified possible counterparts for several of the sources outside NGC 3079 by comparison with optical plates and cat...

متن کامل

NGC 3079: X-ray emission from the nuclear super-bubble and halo

We report the results of the spatial and spectral analysis of the ROSAT HRI and PSPC observations of the edge-on spiral galaxy NGC 3079. We detected several sources in the field of NGC 3079 with both PSPC and HRI, and complex emission from the inner 5′ around NGC 3079. We have identified possible counterparts for several of the sources outside NGC 3079 by comparison with optical plates and cata...

متن کامل

ar X iv : a st ro - p h / 01 08 50 0 v 1 3 1 A ug 2 00 1 BeppoSAX Observation of NGC 3079

Using the BeppoSAX observatory, we have observed a nearby LINER/Seyfert 2 galaxy, NGC 3079, which is known as an outflow galaxy and a bright H2O-maser source. Using the PDS detector, we have revealed that the NGC 3079 nucleus suffers from a Compton-thick absorption, with a hydrogen column density ∼ 10 cm. After corrected the absorption, the 2–10 keV luminosity becomes 10 erg s at a distance of ...

متن کامل

Tightly Correlated X-ray/hα Emitting Filaments in the Superbubble and Large-scale Superwind of Ngc 3079

Using Chandra and HST we show that X-ray and Hα filaments that form the 1.3-kpc diameter superbubble of NGC 3079 have strikingly similar patterns at ∼0.8 resolution. This tight optical line/X-ray match seems to arise from cool disk gas that has been driven by the wind, with X-rays being emitted from upstream, stand-off bowshocks or by conductive cooling at the cloud/wind interfaces. We find tha...

متن کامل

A Comparison of Ultraluminous X - Ray Sources in Ngc 1399 and the Antennae Galaxies ( Ngc 4038 / 4039 )

The temporal and spectral properties of ultraluminous X-ray sources (ULXs, L X > 2 × 10 39 ergs s −1) and bright X-ray sources (L X > 3 × 10 38 ergs s −1) are examined and compared in two extremely different host environments: the old elliptical galaxy NGC 1399 and the young, starforming Antennae galaxies (NGC 4038/4039). ULXs in NGC 1399 show little variability on either long or short time sca...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005