# ON THE SPECTRAL SHAPE OF RADIATION DUE TO INVERSE COMPTON SCATTERING CLOSE TO THE MAXIMUM CUTOFF

## Abstract

The spectral shape of radiation due to inverse Compton scattering is analyzed in the Thomson and the Klein-Nishina regime for electron distributions with exponential cutoff. We derive analytical, asymptotic expressions for the spectrum close to the maximum cutoff region. We consider monoenergetic, Planckian, and synchrotron photons as target photon fields. These approximations provide a direct link between the distribution of parent electrons and the upscattered spectrum at the cutoff region.

- Authors:

- Publication Date:

- OSTI Identifier:
- 22039362

- Resource Type:
- Journal Article

- Journal Name:
- Astrophysical Journal

- Additional Journal Information:
- Journal Volume: 753; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; APPROXIMATIONS; ASYMPTOTIC SOLUTIONS; COMPTON EFFECT; COSMIC ELECTRONS; COSMIC PHOTONS; GALAXIES; GAMMA RADIATION; KLEIN-NISHINA FORMULA; SYNCHROTRON RADIATION; THOMSON SCATTERING

### Citation Formats

```
Lefa, E, Kelner, S R, and Aharonian, F. A., E-mail: eva.lefa@mpi-hd.mpg.de.
```*ON THE SPECTRAL SHAPE OF RADIATION DUE TO INVERSE COMPTON SCATTERING CLOSE TO THE MAXIMUM CUTOFF*. United States: N. p., 2012.
Web. doi:10.1088/0004-637X/753/2/176.

```
Lefa, E, Kelner, S R, & Aharonian, F. A., E-mail: eva.lefa@mpi-hd.mpg.de.
```*ON THE SPECTRAL SHAPE OF RADIATION DUE TO INVERSE COMPTON SCATTERING CLOSE TO THE MAXIMUM CUTOFF*. United States. doi:10.1088/0004-637X/753/2/176.

```
Lefa, E, Kelner, S R, and Aharonian, F. A., E-mail: eva.lefa@mpi-hd.mpg.de. Tue .
"ON THE SPECTRAL SHAPE OF RADIATION DUE TO INVERSE COMPTON SCATTERING CLOSE TO THE MAXIMUM CUTOFF". United States. doi:10.1088/0004-637X/753/2/176.
```

```
@article{osti_22039362,
```

title = {ON THE SPECTRAL SHAPE OF RADIATION DUE TO INVERSE COMPTON SCATTERING CLOSE TO THE MAXIMUM CUTOFF},

author = {Lefa, E and Kelner, S R and Aharonian, F. A., E-mail: eva.lefa@mpi-hd.mpg.de},

abstractNote = {The spectral shape of radiation due to inverse Compton scattering is analyzed in the Thomson and the Klein-Nishina regime for electron distributions with exponential cutoff. We derive analytical, asymptotic expressions for the spectrum close to the maximum cutoff region. We consider monoenergetic, Planckian, and synchrotron photons as target photon fields. These approximations provide a direct link between the distribution of parent electrons and the upscattered spectrum at the cutoff region.},

doi = {10.1088/0004-637X/753/2/176},

journal = {Astrophysical Journal},

issn = {0004-637X},

number = 2,

volume = 753,

place = {United States},

year = {2012},

month = {7}

}

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