TeV Blazars and Cosmic Infrared Background Radiation

نویسنده

  • F. A. Aharonian
چکیده

The recent developments in studies of TeV radiation from blazars are highlighted and the implications of these results for derivation of cosmologically important information about the cosmic infrared background radiation are discussed.

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

Gamma - gamma absorption above a molecular cloud torus in blazars

Gamma rays have been observed from two blazars at TeV energies. One of these, Markarian 421, has been observed also at GeV energies and has roughly equal luminosity per decade at GeV and TeV energies. Photon-photon pair production on the infrared background radiation is expected to prevent observation above ∼ 1 TeV. However, the infrared background is not well known and it may be possible to ob...

متن کامل

Photon - photon absorption above a molecular cloud torus in blazars

Gamma rays have been observed from two blazars at TeV energies. One of these, Markarian 421, has been observed also at GeV energies and has roughly equal luminosity per decade at GeV and TeV energies. Photon-photon pair production on the infrared background radiation is expected to prevent observation above 1 TeV. However, the infrared background is not well known and it may be possible to obse...

متن کامل

Understanding the Spectra of TeV Blazars: Implications for the Cosmic Infrared Background

With the arrival of powerful, ground-based γ-ray detectors, we can now begin to seriously probe, via simultaneous X-ray/TeV observations, the origin of the γray emission in the blazars Mrk 421 and 501. If the synchrotron-Compton emission model turns out to work, then we know that the same electrons are responsible for both the X-ray and the γ-ray emission of these objects. In this case, we show...

متن کامل

Blazars – Theoretical Aspects

I give a brief overview of our theoretical understanding of blazars. I highlight currently unresolved problems and show how multiwavelength (X-ray and TeV) observation of TeV emitting blazars like Mkn 501 may be particularly useful in constraining emission models. I also note that intergalactic absorption of TeV gamma-rays is a process that can no longer be ignored by blazars modelers and that ...

متن کامل

Intrinsic Spectra of the TeV Blazars Mrk 421 and Mrk 501

Energy spectra of γ-ray blazars may contain an imprint from the cosmic infrared background radiation due to γ-ray absorption (pair-production) by soft photons constituting the extragalactic background light (EBL). The signature of this imprint depends on the spectral shape of the EBL. In this work we correct the observed spectra of Mrk 421 and Mrk 501 for absorption using different possible rea...

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 2008