Details

Autor(en) / Beteiligte

• Ackermann, M.
• Atwood, W. B.
• Baldini, L.
• Ballet, J.
• Barbiellini, G.
• Bastieri, D.
• Bellazzini, R.
• Bissaldi, E.
• Bloom, E. D.
• Bonino, R.
• Bottacini, E.
• Bregeon, J.
• Bruel, P.
• Buehler, R.
• Caputo, R.
• Cavazzuti, E.
• Charles, E.
• Chekhtman, A.
• Cheung, C. C.
• Chiaro, G.
• Ciprini, S.
• Conrad, J.
• Costantin, D.
• D'Ammando, F.
• Palma, F. de
• Digel, S. W.
• Lalla, N. Di
• Venere, L. Di
• Favuzzi, C.
• Fegan, S. J.
• Franckowiak, A.
• Fukazawa, Y.
• Funk, S.
• Fusco, P.
• Gargano, F.
• Gasparrini, D.
• Giglietto, N.
• Giordano, F.
• Giroletti, M.
• Green, D.
• Grenier, I. A.
• Guillemot, L.
• Guiriec, S.
• Horan, D.
• Johnson, C.
• Kensei, S.
• Kocevski, D.
• Kuss, M.
• Li, J.
• Longo, F.
• Loparco, F.
• Lovellette, M. N.
• Magill, J. D.
• Maldera, S.
• Malyshev, D.
• Manfreda, A.
• Mazziotta, M. N.
• McEnery, J. E.
• Meyer, M.
• Michelson, P. F.
• Mitthumsiri, W.
• Mizuno, T.
• Monzani, M. E.
• Moretti, E.
• Morselli, A.
• Moskalenko, I. V.
• Negro, M.
• Nuss, E.
• Ojha, R.
• Omodei, N.
• Orienti, M.
• Orlando, E.
• Ormes, J. F.
• Palatiello, M.
• Paliya, V. S.
• Persic, M.
• Pesce-Rollins, M.
• Piron, F.
• Principe, G.
• Rainò, S.
• Rando, R.
• Razzano, M.
• Razzaque, S.
• Reimer, O.
• Ritz, S.
• Sánchez-Conde, M.
• Siskind, E. J.
• Spada, F.
• Spinelli, P.
• Suson, D. J.
• Tajima, H.
• Thayer, J. G.
• Thayer, J. B.
• Torres, D. F.
• Tosti, G.
• Troja, E.
• Valverde, J.
• Vianello, G.
• Wood, K.
• Zaharijas, G.

Titel

Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope

Ist Teil von

• The Astrophysical journal, 2018-04, Vol.857 (1), p.49

Ort / Verlag

Philadelphia: The American Astronomical Society

Erscheinungsjahr

2018

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Black holes with masses below approximately 1015 g are expected to emit gamma-rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telescope (LAT). Although black holes with these masses cannot be formed as a result of stellar evolution, they may have formed in the early universe and are therefore called primordial black holes (PBHs). Previous searches for PBHs have focused on either short-timescale bursts or the contribution of PBHs to the isotropic gamma-ray emission. We show that, in cases of individual PBHs, the Fermi-LAT is most sensitive to PBHs with temperatures above approximately 16 GeV and masses 6 × 1011 g, which it can detect out to a distance of about 0.03 pc. These PBHs have a remaining lifetime of months to years at the start of the Fermi mission. They would appear as potentially moving point sources with gamma-ray emission that become spectrally harder and brighter with time until the PBH completely evaporates. In this paper, we develop a new algorithm to detect the proper motion of gamma-ray point sources, and apply it to 318 unassociated point sources at a high galactic latitude in the third Fermi-LAT source catalog. None of the unassociated point sources with spectra consistent with PBH evaporation show significant proper motion. Using the nondetection of PBH candidates, we derive a 99% confidence limit on the PBH evaporation rate in the vicinity of Earth, &DiacriticalDot; PBH < 7.2 × 10 3 pc − 3 yr − 1 . This limit is similar to the limits obtained with ground-based gamma-ray observatories.