Constraints on the Galactic Population of TeV Pulsar Wind Nebulae Using Fermi Large Area Telescope Observations
Articolo
Data di Pubblicazione:
2013
Abstract:
Pulsar wind nebulae (PWNe) have been established as the most populous class of TeV γ -ray emitters. Since launch,
the Fermi Large Area Telescope (LAT) has identified five high-energy (100 MeV < E < 100 GeV) γ -ray sources
as PWNe and detected a large number of PWN candidates, all powered by young and energetic pulsars. The wealth
of multi-wavelength data available and the new results provided by Fermi-LAT give us an opportunity to find new
PWNe and to explore the radiative processes taking place in known ones. The TeV γ -ray unidentified (UNID)
sources are the best candidates for finding new PWNe. Using 45 months of Fermi-LAT data for energies above
10 GeV, an analysis was performed near the position of 58 TeV PWNe and UNIDs within 5◦ of the Galactic plane to
establish new constraints on PWNproperties and find new clues on the nature of UNIDs. Of the 58 sources, 30 were
detected, and this work provides their γ -ray fluxes for energies above 10 GeV. The spectral energy distributions
and upper limits, in the multi-wavelength context, also provide new information on the source nature and can help
distinguish between emission scenarios, i.e., between classification as a pulsar candidate or as a PWN candidate.
Six new GeV PWN candidates are described in detail and compared with existing models. A population study
of GeV PWN candidates as a function of the pulsar/PWN system characteristics is presented.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
gamma rays: general
Elenco autori:
F. Acero;M. Ackermann;M. Ajello;A. Allafort;L. Baldini;J. Ballet;G. Barbiellini;D. Bastieri;K. Bechtol;R. Bellazzini;R. D. Blandford;E. D. Bloom;E. Bonamente;E. Bottacini;T. J. Brandt;J. Bregeon;M. Brigida;P. Bruel;R. Buehler;S. Buson;G. A. Caliandro;R. A. Cameron;P. A. Caraveo;C. Cecchi;E. Charles;R. C.G. Chaves;A. Chekhtman;J. Chiang;G. Chiaro;S. Ciprini;R. Claus;J. Cohen-Tanugi;J. Conrad;S. Cutini;M. Dalton;F. D'Ammando;F. de Palma;C. D. Dermer;L. Di Venere;E. do Couto e Silva;P. S. Drell;A. Drlica-Wagner;L. Falletti;C. Favuzzi;S. J. Fegan;E. C. Ferrara;W. B. Focke;A. Franckowiak;Y. Fukazawa;S. Funk;P. Fusco;F. Gargano;D. Gasparrini;N. Giglietto;F. Giordano;M. Giroletti;T. Glanzman;G. Godfrey;T. Grégoire;I. A. Grenier;M.-H. Grondin;J. E. Grove;S. Guiriec;D. Hadasch;Y. Hanabata;A. K. Harding;M. Hayashida;K. Hayashi;E. Hays;J. Hewitt;A. B. Hill;D. Horan;X. Hou;R. E. Hughes;Y. Inoue;M. S. Jackson;T. Jogler;G. Jóhannesson;A. S. Johnson;T. Kamae;T. Kawano;M. Kerr;J. Knödlseder;M. Kuss;J. Lande;S. Larsson;L. Latronico;M. Lemoine-Goumard;F. Longo;F. Loparco;M. N. Lovellette;P. Lubrano;M. Marelli;F. Massaro;M. Mayer;M. N. Mazziotta;J. E. McEnery;J. Mehault;P. F. Michelson;W. Mitthumsiri;T. Mizuno;C. Monte;M. E. Monzani;A. Morselli;I. V. Moskalenko;S. Murgia;T. Nakamori;R. Nemmen;E. Nuss;T. Ohsugi;A. Okumura;M. Orienti;E. Orlando;J. F. Ormes;D. Paneque;J. H. Panetta;J. S. Perkins;M. Pesce-Rollins;F. Piron;G. Pivato;T. A. Porter;S. Rainò;R. Rando;M. Razzano;A. Reimer;O. Reimer;T. Reposeur;S. Ritz;M. Roth;R. Rousseau;P. M. Saz Parkinson;A. Schulz;C. Sgrò;E. J. Siskind;D. A. Smith;G. Spandre;P. Spinelli;D. J. Suson;H. Takahashi;Y. Takeuchi;J. G. Thayer;J. B. Thayer;D. J. Thompson;L. Tibaldo;O. Tibolla;M. Tinivella;D. F. Torres;G. Tosti;E. Troja;Y. Uchiyama;J. Vandenbroucke;V. Vasileiou;G. Vianello;V. Vitale;M. Werner;B. L. Winer;K. S. Wood;Z. Yang
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