Cosmic rays, gamma rays and synchrotron radiation from the Galaxy

Orlando, Elena

doi:10.1088/1742-6596/375/1/052025

Title: Cosmic rays, gamma rays and synchrotron radiation from the Galaxy

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Abstract

Galactic cosmic rays (CR), interstellar gamma-ray emission and synchrotron radiation are related topics. CR electrons propagate in the Galaxy and interact with the interstellar medium, producing inverse-Compton emission measured in gamma rays and synchrotron emission measured in radio. I present an overview of the latest results with Fermi/LAT on the gamma-ray diffuse emission induced by CR nuclei and electrons. Then I focus on the recent complementary studies of the synchrotron emission in the light of the latest gamma-ray results. Relevant observables include spectral indices and their variations, using surveys over a wide range of radio frequencies. As a result, this paper emphasizes the importance of using the parallel study of gamma rays and synchrotron radiation in order to constrain the low-energy interstellar CR electron spectrum, models of propagation of CRs, and magnetic fields.

Authors:

Orlando, Elena ^[1]

Stanford Univ., Stanford, CA (United States)

Publication Date:: Mon Jul 30 00:00:00 EDT 2012

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1332866

Report Number(s):: TAUP-2011
Journal ID: ISSN 1742-6596

Grant/Contract Number:: AC02-76SF00515

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Physics. Conference Series (Online)

Additional Journal Information:: Journal Name: Journal of Physics. Conference Series (Online); Journal Volume: 375; Journal Issue: 5; Journal ID: ISSN 1742-6596

Publisher:: Institute of Physics (IOP)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats


                    Orlando, Elena. Cosmic rays, gamma rays and synchrotron radiation from the Galaxy.  United States: N. p., 2012. 
Web.  doi:10.1088/1742-6596/375/1/052025.

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                    Orlando, Elena. Cosmic rays, gamma rays and synchrotron radiation from the Galaxy.  United States.  https://doi.org/10.1088/1742-6596/375/1/052025

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                    Orlando, Elena. Mon .  
"Cosmic rays, gamma rays and synchrotron radiation from the Galaxy".  United States.  https://doi.org/10.1088/1742-6596/375/1/052025.  https://www.osti.gov/servlets/purl/1332866.

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@article{osti_1332866,

  title        = {Cosmic rays, gamma rays and synchrotron radiation from the Galaxy},

  author       = {Orlando, Elena},

  abstractNote = {Galactic cosmic rays (CR), interstellar gamma-ray emission and synchrotron radiation are related topics. CR electrons propagate in the Galaxy and interact with the interstellar medium, producing inverse-Compton emission measured in gamma rays and synchrotron emission measured in radio. I present an overview of the latest results with Fermi/LAT on the gamma-ray diffuse emission induced by CR nuclei and electrons. Then I focus on the recent complementary studies of the synchrotron emission in the light of the latest gamma-ray results. Relevant observables include spectral indices and their variations, using surveys over a wide range of radio frequencies. As a result, this paper emphasizes the importance of using the parallel study of gamma rays and synchrotron radiation in order to constrain the low-energy interstellar CR electron spectrum, models of propagation of CRs, and magnetic fields.},

  doi          = {10.1088/1742-6596/375/1/052025},

  journal      = {Journal of Physics. Conference Series (Online)},

  number       = 5,

  volume       = 375,

  place        = {United States},

  year         = {Mon Jul 30 00:00:00 EDT 2012},

  month        = {Mon Jul 30 00:00:00 EDT 2012}

}

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