Jets from subpc to kpc scale

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

Jets from subpc to kpc scale Fabrizio Tavecchio

The Chandra discovery of bright X-ray emission from kpc-scale jets provides us unprecedented insights into the physical state of the plasma in the flow. In particular it is possible to get good constraints on the power and pressure in bright knots. For a group of selected sources with blazar-type cores it is also possible to constrain the physical quantities of the jet at sub-pc scale. We discu...

متن کامل

Extragalactic jets on subpc and large scales

x Abstract Jets can be probed in their innermost regions (d ∼ 0.1 pc) through the study of the relativistically boosted emission of blazars. On the other extreme of spatial scales, the study of structure and dynamics of extragalactic relativistic jets received renewed impulse after the discovery, made by Chandra, of bright X-ray emission from regions at distances larger than hundreds of kpc fro...

متن کامل

Constraints on the Nature of Jets from kpc Scale X-ray Data

Motivated by the large number of jets detected by the Chandra X-ray Observatory, and by the inverse Compton X-ray emission model (IC/CMB) for relativistic jets, we revisit two basic questions: “If the medium that carries the jet’s energy consists of hot electrons, can we use the physical length of the jet to constrain the maximum electron energy?” and “Why do jets have knots?” Based on the two ...

متن کامل

Direct and reprocessed γ-ray emission of kpc-scale jets in FR I radio galaxies

We discuss the contribution of kiloparsec-scale jets in FR I radio galaxies to the diffuse γ-ray background radiation. The analyzed γ-ray emission comes from inverse-Compton scattering of starlight photon fields by the ultrarelativistic electrons whose synchrotron radiation is detected from such sources at radio, optical and X-ray energies. We find that these objects, under the minimum-power hy...

متن کامل

On the Magnetic Field in Kpc - Scale Jets of FR I Radio

The energy content of large-scale jets in FR I radio galaxies is still an open issue. Here we show that upper limits on the high-energy and very high-energy γ-ray emission of the kpc-scale jet in M 87 radio galaxy imposed by EGRET, Whipple, and — most importantly — HEGRA and HESS observations, provide important constraints on the magnetic field strength in this object. In particular, a non-dete...

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: New Astronomy Reviews

سال: 2003

ISSN: 1387-6473

DOI: 10.1016/s1387-6473(03)00088-5