Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/61738
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Type: | Journal article |
Title: | Molecular clouds as cosmic-ray barometers |
Author: | Casanova, S. Aharonian, F. Fukui, Y. Gabici, S. Jones, D. Kawamura, A. Onishi, T. Rowell, G. Torii, K. Yamamoto, H. |
Citation: | Publications of Astronomical Society of Japan, 2010; 62(3):769-777 |
Publisher: | Astronomical Soc Japan |
Issue Date: | 2010 |
ISSN: | 0004-6264 2053-051X |
Statement of Responsibility: | Casanova Sabrina, Aharonian Felix A., Fukui Sabrina Casanova, Felix A. Aharonian, Yasuo Fukui, Stefano Gabici, David I. Jones, Akiko Kawamura, Toshikazu Onishi, Gavin Rowell, Kazafumi Torii and Hiroaki Yamamoto |
Abstract: | The advent of high sensitivity, high resolution gamma-ray detectors, together with a knowledge of the distribution of the atomic hydrogen and especially of the molecular hydrogen in the Galaxy on sub-degree scales creates a unique opportunity to explore the flux of cosmic rays in the Galaxy. We here present the new data on the distribution of the molecular hydrogen from a large region of the inner Galaxy obtained by the NANTEN Collaboration. We then introduce a methodology which aims to provide a test bed for current and future gamma-ray observatories to explore the cosmic ray flux at various positions in our Galaxy. In particular, for a distribution of molecular clouds, as provided by the NANTEN survey, and local cosmic ray density as measured at the Earth, we estimate the expected GeV to TeV gamma-ray signal, which can then be compared with observations and use to test the cosmic ray flux. |
Keywords: | gamma rays: theory ISM: clouds ISM: cosmic rays ISM: supernova remnants |
Rights: | (c) 2010. Astronomical Society of Japan. Submitted to Cornell University’s online archive www.arXiv.org in 2010 by Sabrina Casanova. Post-print sourced from www.arxiv.org |
DOI: | 10.1093/pasj/62.3.769 |
Published version: | http://arxiv.org/abs/0904.2887 |
Appears in Collections: | Aurora harvest 5 IPAS publications Physics publications |
Files in This Item:
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hdl_61738.pdf | 553.28 kB | Publisher's post-print | View/Open |
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