GeV OBSERVATIONS OF STAR-FORMING GALAXIES WITH THE FERMI LARGE AREA TELESCOPE

Ackermann M, Ajello M, Allafort A, Baldini L, Ballet J, Bastieri D, Bechtol K, Bellazzini R, Berenji B, Bloom ED, Bonamente E, Borgland AW, Bouvier A, Bregeon J, Brigida M, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Casandjian JM, Cecchi C, Charles E, Chekhtman A, Cheung CC, Chiang J, Cillis AN, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, Cutini S, De Palma F, Dermer CD, Digel SW, Do Couto E Silva E, Drell PS, Drlica-Wagner A, Favuzzi C, Fegan SJ, Fortin P, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Germani S, Giglietto N, Giordano F, Glanzman T, Godfrey G, Grenier IA, Guiriec S, Gustafsson M, Hadasch D, Hayashida M, Hays E, Hughes RE, Johannesson G, Johnson AS, Kamae T, Katagiri H, Kataoka J, Knoedlseder J, Kuss MW, Lande J, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Madejski GM, Martin P, Mazziotta MN, Mcenery JE, Michelson PF, Mizuno T, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nishino S, Norris JP, Nuss E, Ohno M, Ohsugi T, Okumura A, Omodei N, Orlando E, Ozaki M, Parent D, Persic M, Pesce-Rollins M, Petrosian V, Pierbattista M, Piron F, Pivato G, Porter TA, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Ritz S, Roth M, Sbarra C, Sgro C, Siskind EJ, Spandre G, Spinelli P, Stawarz L, Strong AW, Takahashi HH, Tanaka T, Thayer JB, Tibaldo L, Tinivella M, Torres DF, Tosti G, Troja E, Uchiyama Y, Vandenbroucke J, Vianello G, Vitale V, Waite AP, Wood M, Yang Z (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Book Volume: 755

Journal Issue: 2

DOI: 10.1088/0004-637X/755/2/164

Abstract

Recent detections of the starburst galaxies M82 and NGC 253 by gamma-ray telescopes suggest that galaxies rapidly forming massive stars are more luminous at gamma-ray energies compared to their quiescent relatives. Building upon those results, we examine a sample of 69 dwarf, spiral, and luminous and ultraluminous infrared galaxies at photon energies 0.1-100 GeV using 3 years of data collected by the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (Fermi). Measured fluxes from significantly detected sources and flux upper limits for the remaining galaxies are used to explore the physics of cosmic rays in galaxies. We find further evidence for quasi-linear scaling relations between gamma-ray luminosity and both radio continuum luminosity and total infrared luminosity which apply both to quiescent galaxies of the Local Group and low-redshift starburst galaxies (conservative P-values less than or similar to 0.05 accounting for statistical and systematic uncertainties). The normalizations of these scaling relations correspond to luminosity ratios of log(L0.1-100GeV/L-1.4GHz) = 1.7 +/- 0.1((statistical)) +/- 0.2((dispersion)) and log(L0.1-100GeV/L8-1000 (mu m)) = -4.3 +/- 0.1((statistical)) +/- 0.2((dispersion)) for a galaxy with a star formation rate of 1 M-circle dot yr(-1), assuming a Chabrier initial mass function. Using the relationship between infrared luminosity and gamma-ray luminosity, the collective intensity of unresolved star-forming galaxies at redshifts 0 < z < 2.5 above 0.1 GeV is estimated to be 0.4-2.4 x 10(-6) ph cm(-2) s(-1) sr(-1) (4%-23% of the intensity of the isotropic diffuse component measured with the LAT). We anticipate that similar to 10 galaxies could be detected by their cosmic-ray-induced gamma-ray emission during a 10 year Fermi mission.

Authors with CRIS profile

Involved external institutions

Stanford University United States (USA) (US) University of Bari Aldo Moro / Università degli Studi di Bari Aldo Moro Italy (IT) U.S. Naval Research Laboratory United States (USA) (US) Waseda University / 早稲田大学 Japan (JP) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) Italy (IT) Institut de Ciències de l'Espai (ICE) Spain (ES) National Aeronautics and Space Administration (NASA) United States (USA) (US) Stockholm University / Stockholms universitet Sweden (SE) Deutsches Elektronen-Synchrotron DESY Germany (DE) University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) University of California Santa Cruz United States (USA) (US) Institut national de physique nucléaire et de physique des particules (IN2P3) France (FR) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) Italy (IT) George Mason University United States (USA) (US) National Academy of Sciences United States (USA) (US) Instituto de Astronomía y Física del Espacio (IAFE) Argentina (AR) Università degli Studi di Perugia Italy (IT) University of Montpellier / Université Montpellier France (FR) Italian Space Agency / Agenzia Spaziale Italiana (ASI) Italy (IT) Hiroshima University / 広島大学 Japan (JP) University of Alabama in Huntsville (UAH) United States (USA) (US) Ohio State University United States (USA) (US) University of Iceland (UI) / Háskóli Íslands Iceland (IS) Ibaraki University / 茨城大学 Japan (JP) Institut de Recherche en Astrophysique et Planétologie (IRAP) France (FR) Université Bordeaux 1, Sciences et Technologies France (FR) Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics Germany (DE) Boise State University United States (USA) (US) Japan Aerospace eXploration Agency (JAXA) Japan (JP) University of Padua / Universita degli Studi di Padova Italy (IT) University of Washington United States (USA) (US) NYCB Real-Time Computing, Inc. United States (USA) (US)

How to cite

APA:

Ackermann, M., Ajello, M., Allafort, A., Baldini, L., Ballet, J., Bastieri, D.,... Yang, Z. (2012). GeV OBSERVATIONS OF STAR-FORMING GALAXIES WITH THE FERMI LARGE AREA TELESCOPE. Astrophysical Journal, 755(2). https://doi.org/10.1088/0004-637X/755/2/164

MLA:

Ackermann, Markus, et al. "GeV OBSERVATIONS OF STAR-FORMING GALAXIES WITH THE FERMI LARGE AREA TELESCOPE." Astrophysical Journal 755.2 (2012).

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