J
J. S. Perkins
Researcher at Goddard Space Flight Center
Publications - 171
Citations - 20313
J. S. Perkins is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Fermi Gamma-ray Space Telescope & Blazar. The author has an hindex of 65, co-authored 161 publications receiving 18614 citations. Previous affiliations of J. S. Perkins include University of Maryland, Baltimore County.
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Journal ArticleDOI
Fermi Large Area Telescope Second Source Catalog
P. L. Nolan,A. A. Abdo,A. A. Abdo,Markus Ackermann,Marco Ajello,Alice Allafort,Elisa Antolini,Elisa Antolini,W. B. Atwood,Magnus Axelsson,Magnus Axelsson,Luca Baldini,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Denis Bastieri,Denis Bastieri,Keith Bechtol,Andrea Belfiore,Andrea Belfiore,Andrea Belfiore,Ronaldo Bellazzini,B. Berenji,Giovanni F. Bignami,Roger Blandford,E. D. Bloom,Emanuele Bonamente,Emanuele Bonamente,J. Bonnell,J. Bonnell,A. W. Borgland,Eugenio Bottacini,A. Bouvier,T. J. Brandt,T. J. Brandt,Johan Bregeon,M. Brigida,M. Brigida,P. Bruel,R. Buehler,T. H. Burnett,S. Buson,S. Buson,G. A. Caliandro,R. A. Cameron,Riccardo Campana,B. Canadas,B. Canadas,A. Cannon,A. Cannon,P. A. Caraveo,J. M. Casandjian,E. Cavazzuti,M. Ceccanti,C. Cecchi,C. Cecchi,Omer Celik,Omer Celik,Eric Charles,A. Chekhtman,C. C. Cheung,C. C. Cheung,C. C. Cheung,James Chiang,R. Chipaux,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,L. R. Cominsky,Jan Conrad,Jan Conrad,R. H. D. Corbet,R. H. D. Corbet,S. Cutini,Filippo D'Ammando,David S. Davis,David S. Davis,A. De Angelis,M. E. DeCesar,M. E. DeCesar,M. Deklotz,A. De Luca,P. R. den Hartog,F. de Palma,F. de Palma,Charles D. Dermer,Seth Digel,E. Do Couto E Silva,Persis S. Drell,Alex Drlica-Wagner,R. Dubois,D. Dumora,Teruaki Enoto,L. Escande,D. Fabiani,L. Falletti,C. Favuzzi,C. Favuzzi,S. J. Fegan,Elizabeth C. Ferrara,W. B. Focke,P. Fortin,M. Frailis,Yasushi Fukazawa,Stefan Funk,P. Fusco,P. Fusco,F. Gargano,Dario Gasparrini,Neil Gehrels,S. Germani,S. Germani,B. Giebels,Nicola Giglietto,Nicola Giglietto,Paolo Giommi,Francesco Giordano,Francesco Giordano,Marcello Giroletti,T. Glanzman,G. Godfrey,I. A. Grenier,M. H. Grondin,M. H. Grondin,J. E. Grove,L. Guillemot,Sylvain Guiriec,Mats Gustafsson,Daniela Hadasch,Y. Hanabata,Alice K. Harding,M. Hayashida,M. Hayashida,E. Hays,A. B. Hill,D. Horan,X. Hou,R. E. Hughes,G. Iafrate,Ryosuke Itoh,Gudlaugur Johannesson,R. P. Johnson,T. E. Johnson,A. S. Johnson,Tyrel J. Johnson,Tyrel J. Johnson,Tyrel J. Johnson,T. Kamae,Hideaki Katagiri,Jun Kataoka,J. Katsuta,Nobuyuki Kawai,Matthew Kerr,Jürgen Knödlseder,Jürgen Knödlseder,D. Kocevski,M. Kuss,J. Lande,D. Landriu,Luca Latronico,Marianne Lemoine-Goumard,Andrea Lionetto,Andrea Lionetto,M. Llena Garde,Francesco Longo,Francesco Longo,F. Loparco,F. Loparco,Benoit Lott,M. N. Lovellette,P. Lubrano,P. Lubrano,G. M. Madejski,M. Marelli,Enrico Massaro,M. N. Mazziotta,W. McConville,W. McConville,Julie McEnery,Julie McEnery,J. Mehault,Peter F. Michelson,Massimo Minuti,W. Mitthumsiri,Tsunefumi Mizuno,A. A. Moiseev,A. A. Moiseev,M. Mongelli,C. Monte,C. Monte,M. E. Monzani,A. Morselli,Igor V. Moskalenko,S. Murgia,Takeshi Nakamori,M. Naumann-Godo,Jay P. Norris,E. Nuss,T. Nymark,T. Nymark,Masanori Ohno,T. Ohsugi,Akira Okumura,Nicola Omodei,E. Orlando,J. F. Ormes,M. Ozaki,David Paneque,David Paneque,J. H. Panetta,D. Parent,D. Parent,J. S. Perkins,Melissa Pesce-Rollins,M. Pierbattista,Michele Pinchera,F. Piron,G. Pivato,T. A. Porter,Judith Racusin,S. Rainò,S. Rainò,Riccardo Rando,Riccardo Rando,M. Razzano,M. Razzano,Soebur Razzaque,Soebur Razzaque,A. Reimer,Olaf Reimer,T. Reposeur,Steven Ritz,L. S. Rochester,Roger W. Romani,M. Roth,R. Rousseau,Felix Ryde,Felix Ryde,Hartmut Sadrozinski,David Salvetti,Daniel Sánchez,P. M. Saz Parkinson,C. Sbarra,Jeffrey D. Scargle,T. L. Schalk,Carmelo Sgrò,M. S. Shaw,Chris Shrader,E. J. Siskind,David A. Smith,Gloria Spandre,P. Spinelli,P. Spinelli,T. E. Stephens,T. E. Stephens,M. S. Strickman,D. J. Suson,Hiroyasu Tajima,Hiroyasu Tajima,Hiromitsu Takahashi,Tadayuki Takahashi,Takaaki Tanaka,J. G. Thayer,J. B. Thayer,D. J. Thompson,L. Tibaldo,L. Tibaldo,O. Tibolla,F. Tinebra,M. Tinivella,Diego F. Torres,Diego F. Torres,Gino Tosti,Gino Tosti,Eleonora Troja,Yasunobu Uchiyama,Justin Vandenbroucke,A. Van Etten,B. van Klaveren,V. Vasileiou,Giacomo Vianello,V. Vitale,V. Vitale,A. P. Waite,E. Wallace,P. Wang,Michael Werner,Brian L Winer,D. L. Wood,D. L. Wood,K. S. Wood,Matthew Wood,Zhenwei Yang,Stephan Zimmer +293 more
TL;DR: The second Fermi-LAT catalog (2FGL) as mentioned in this paper includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and spectral fits in terms either power-law, exponentially cutoff power law, or log-normal forms.
Journal ArticleDOI
Searching for dark matter annihilation from Milky Way dwarf spheroidal galaxies with six years of Fermi Large Area Telescope data
Markus Ackermann,Andrea Albert,Brandon Anderson,W. B. Atwood,Luca Baldini,Guido Barbiellini,Denis Bastieri,Keith Bechtol,Ronaldo Bellazzini,Elisabetta Bissaldi,Roger Blandford,E. D. Bloom,R. Bonino,Eugenio Bottacini,T. J. Brandt,Johan Bregeon,P. Bruel,R. Buehler,G. A. Caliandro,R. A. Cameron,R. Caputo,M. Caragiulo,P. A. Caraveo,C. Cecchi,Eric Charles,A. Chekhtman,James Chiang,G. Chiaro,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,Jan Conrad,Alessandro Cuoco,S. Cutini,Filippo D'Ammando,A. De Angelis,F. de Palma,R. Desiante,Seth Digel,L. Di Venere,Persis S. Drell,Alex Drlica-Wagner,R. Essig,C. Favuzzi,S. J. Fegan,Elizabeth C. Ferrara,W. B. Focke,A. Franckowiak,Yasushi Fukazawa,Stefan Funk,P. Fusco,F. Gargano,Dario Gasparrini,Nicola Giglietto,Francesco Giordano,Marcello Giroletti,T. Glanzman,G. Godfrey,G. A. Gomez-Vargas,I. A. Grenier,Sylvain Guiriec,M. Gustafsson,E. Hays,John W. Hewitt,D. Horan,T. Jogler,Gudlaugur Johannesson,M. Kuss,Stefan Larsson,Luca Latronico,Jingcheng Li,L. Li,M. Llena Garde,Francesco Longo,F. Loparco,P. Lubrano,D. Malyshev,M. Mayer,M. N. Mazziotta,Julie McEnery,Manuel Meyer,Peter F. Michelson,Tsunefumi Mizuno,A. A. Moiseev,M. E. Monzani,A. Morselli,S. Murgia,E. Nuss,T. Ohsugi,M. Orienti,E. Orlando,J. F. Ormes,David Paneque,J. S. Perkins,Melissa Pesce-Rollins,F. Piron,G. Pivato,T. A. Porter,S. Rainò,R. Rando,M. Razzano,A. Reimer,Olaf Reimer,Steven Ritz,Miguel A. Sánchez-Conde,André Schulz,Neelima Sehgal,Carmelo Sgrò,E. J. Siskind,F. Spada,Gloria Spandre,P. Spinelli,Louis E. Strigari,Hiroyasu Tajima,Hiromitsu Takahashi,J. B. Thayer,L. Tibaldo,Diego F. Torres,Eleonora Troja,Giacomo Vianello,Michael David Werner,Brian L Winer,K. S. Wood,Matthew Wood,Gabrijela Zaharijas,Stephan Zimmer +125 more
TL;DR: In this article, the authors report on γ-ray observations of the Milky-Way satellite galaxies (dSphs) based on six years of Fermi Large Area Telescope data processed with the new Pass8 event-level analysis.
Journal ArticleDOI
The second fermi large area telescope catalog of gamma-ray pulsars
A. A. Abdo,A. A. Abdo,Marco Ajello,Alice Allafort,Luca Baldini,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Matthew G. Baring,Denis Bastieri,Denis Bastieri,Andrea Belfiore,Andrea Belfiore,Andrea Belfiore,Ronaldo Bellazzini,Bhaswati Bhattacharyya,Elisabetta Bissaldi,E. D. Bloom,Emanuele Bonamente,Emanuele Bonamente,Eugenio Bottacini,Terri Brandt,Johan Bregeon,M. Brigida,M. Brigida,P. Bruel,R. Buehler,M. Burgay,T. H. Burnett,G. Busetto,G. Busetto,S. Buson,S. Buson,G. A. Caliandro,R. A. Cameron,Fernando Camilo,Fernando Camilo,P. A. Caraveo,J. M. Casandjian,C. Cecchi,C. Cecchi,Omer Celik,Omer Celik,Eric Charles,Sylvain Chaty,R. C. G. Chaves,A. Chekhtman,A. Chekhtman,A. W. Chen,James Chiang,G. Chiaro,Stefano Ciprini,R. Claus,Ismaël Cognard,Johann Cohen-Tanugi,L. R. Cominsky,Jan Conrad,S. Cutini,Filippo D'Ammando,A. De Angelis,M. E. DeCesar,M. E. DeCesar,A. De Luca,P. R. den Hartog,F. de Palma,F. de Palma,Charles D. Dermer,Gregory Desvignes,Gregory Desvignes,Seth Digel,L. Di Venere,Persis S. Drell,Alex Drlica-Wagner,R. Dubois,D. Dumora,Cristobal M. Espinoza,L. Falletti,C. Favuzzi,C. Favuzzi,Elizabeth C. Ferrara,W. B. Focke,A. Franckowiak,Paulo C. C. Freire,Stefan Funk,P. Fusco,P. Fusco,F. Gargano,Dario Gasparrini,S. Germani,S. Germani,Nicola Giglietto,Nicola Giglietto,Paolo Giommi,Francesco Giordano,Francesco Giordano,Marcello Giroletti,T. Glanzman,G. Godfrey,Eric V. Gotthelf,I. A. Grenier,M.-H. Grondin,M.-H. Grondin,J. E. Grove,L. Guillemot,Sylvain Guiriec,D. Hadasch,Y. Hanabata,Alice K. Harding,M. Hayashida,M. Hayashida,E. Hays,Jason W. T. Hessels,Jason W. T. Hessels,John W. Hewitt,A. B. Hill,A. B. Hill,D. Horan,Xian Hou,R. E. Hughes,Miranda Jackson,Miranda Jackson,Gemma H. Janssen,T. Jogler,Gudlaugur Johannesson,R. P. Johnson,A. S. Johnson,Tyrel J. Johnson,Tyrel J. Johnson,W. N. Johnson,Simon Johnston,T. Kamae,Jun Kataoka,Michael Keith,Matthew Kerr,Jürgen Knödlseder,Jürgen Knödlseder,Michael Kramer,Michael Kramer,M. Kuss,J. Lande,S. Larsson,Luca Latronico,Marianne Lemoine-Goumard,Francesco Longo,Francesco Longo,F. Loparco,F. Loparco,M. N. Lovellette,P. Lubrano,P. Lubrano,Andrew Lyne,R. N. Manchester,M. Marelli,Francesco Massaro,M. Mayer,M. N. Mazziotta,Julie McEnery,Julie McEnery,Maura McLaughlin,J. Mehault,Peter F. Michelson,Roberto Mignani,Roberto Mignani,Roberto Mignani,W. Mitthumsiri,Tsunefumi Mizuno,A. A. Moiseev,A. A. Moiseev,M. E. Monzani,A. Morselli,Igor V. Moskalenko,S. Murgia,Takeshi Nakamori,Rodrigo Nemmen,E. Nuss,Masanori Ohno,T. Ohsugi,M. Orienti,E. Orlando,J. F. Ormes,David Paneque,David Paneque,J. H. Panetta,D. Parent,D. Parent,J. S. Perkins,Melissa Pesce-Rollins,M. Pierbattista,F. Piron,G. Pivato,Holger J. Pletsch,T. A. Porter,A. Possenti,S. Rainò,S. Rainò,Robert R. Rando,Robert R. Rando,Scott M. Ransom,Paul S. Ray,M. Razzano,M. Razzano,Nanda Rea,A. Reimer,Olaf Reimer,N. Renault,T. Reposeur,Steven Ritz,Roger W. Romani,M. Roth,R. Rousseau,Jayashree Roy,John J. Ruan,Alberto Sartori,P. M. Saz Parkinson,Jeffrey D. Scargle,André Schulz,Carmelo Sgrò,Ryan Shannon,E. J. Siskind,David A. Smith,Gloria Spandre,P. Spinelli,P. Spinelli,Benjamin Stappers,Andrew W. Strong,D. J. Suson,Hiromitsu Takahashi,J. G. Thayer,J. B. Thayer,Gilles Theureau,D. J. Thompson,Stephen E. Thorsett,L. Tibaldo,O. Tibolla,M. Tinivella,Diego F. Torres,Diego F. Torres,Gino Tosti,Gino Tosti,Eleonora Troja,Eleonora Troja,Yasunobu Uchiyama,T. L. Usher,Justin Vandenbroucke,V. Vasileiou,Christo Venter,Giacomo Vianello,V. Vitale,V. Vitale,Na Wang,Patrick Weltevrede,Brian L Winer,M. T. Wolff,D. L. Wood,D. L. Wood,K. S. Wood,Matthew Wood,Zhenwei Yang +257 more
TL;DR: In this article, a catalog of gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite is presented.
Journal ArticleDOI
Detection of the characteristic pion-decay signature in supernova remnants
Markus Ackermann,Marco Ajello,Alice Allafort,Luca Baldini,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Matthew G. Baring,Denis Bastieri,Denis Bastieri,Keith Bechtol,Ronaldo Bellazzini,Roger Blandford,E. D. Bloom,Emanuele Bonamente,Emanuele Bonamente,A. W. Borgland,Eugenio Bottacini,T. J. Brandt,Johan Bregeon,M. Brigida,M. Brigida,P. Bruel,R. Buehler,G. Busetto,G. Busetto,S. Buson,S. Buson,G. A. Caliandro,R. A. Cameron,P. A. Caraveo,J. M. Casandjian,C. Cecchi,C. Cecchi,Omer Celik,Omer Celik,E. Charles,Sylvain Chaty,R. C. G. Chaves,A. Chekhtman,C. C. Cheung,James Chiang,G. Chiaro,A. N. Cillis,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,L. R. Cominsky,Jan Conrad,Jan Conrad,Stephane Corbel,S. Cutini,F. D'Ammando,F. D'Ammando,A. De Angelis,F. de Palma,F. de Palma,Charles D. Dermer,E. Do Couto E Silva,Persis S. Drell,Alex Drlica-Wagner,L. Falletti,C. Favuzzi,C. Favuzzi,Elizabeth C. Ferrara,A. Franckowiak,Yasushi Fukazawa,Stefan Funk,P. Fusco,F. Gargano,S. Germani,S. Germani,Nicola Giglietto,Nicola Giglietto,Paolo Giommi,Francesco Giordano,Marcello Giroletti,T. Glanzman,G. Godfrey,I. A. Grenier,M. H. Grondin,M. H. Grondin,J. E. Grove,Sylvain Guiriec,Daniela Hadasch,Y. Hanabata,Alice K. Harding,M. Hayashida,M. Hayashida,K. Hayashi,E. Hays,John W. Hewitt,A. B. Hill,R. E. Hughes,Miranda Jackson,Miranda Jackson,T. Jogler,Gudlaugur Johannesson,A. S. Johnson,T. Kamae,Jun Kataoka,J. Katsuta,Jürgen Knödlseder,Jürgen Knödlseder,M. Kuss,J. Lande,S. Larsson,Luca Latronico,Marianne Lemoine-Goumard,Francesco Longo,Francesco Longo,F. Loparco,M. N. Lovellette,P. Lubrano,P. Lubrano,G. M. Madejski,Francesco Massaro,M. Mayer,M. N. Mazziotta,Julie McEnery,Julie McEnery,J. Mehault,Peter F. Michelson,Roberto Mignani,W. Mitthumsiri,Tsunefumi Mizuno,A. A. Moiseev,A. A. Moiseev,M. E. Monzani,A. Morselli,Igor V. Moskalenko,S. Murgia,Takeshi Nakamori,Rodrigo Nemmen,E. Nuss,Masanori Ohno,T. Ohsugi,Nicola Omodei,M. Orienti,E. Orlando,J. F. Ormes,David Paneque,David Paneque,J. S. Perkins,Melissa Pesce-Rollins,F. Piron,G. Pivato,S. Rainò,S. Rainò,Riccardo Rando,Riccardo Rando,M. Razzano,M. Razzano,Soebur Razzaque,A. Reimer,Olaf Reimer,Steven Ritz,C. Romoli,Miguel A. Sánchez-Conde,André Schulz,Carmelo Sgrò,P. E. Simeon,E. J. Siskind,David S. Smith,Gloria Spandre,P. Spinelli,P. Spinelli,F. W. Stecker,F. W. Stecker,Andrew W. Strong,D. J. Suson,Hiroyasu Tajima,Hiroyasu Tajima,Hiromitsu Takahashi,Tadayuki Takahashi,Takaaki Tanaka,Takaaki Tanaka,J. G. Thayer,J. B. Thayer,D. J. Thompson,Stephen E. Thorsett,L. Tibaldo,L. Tibaldo,O. Tibolla,M. Tinivella,Eleonora Troja,Yasunobu Uchiyama,T. L. Usher,Justin Vandenbroucke,V. Vasileiou,Giacomo Vianello,V. Vitale,V. Vitale,A. P. Waite,Michael Werner,Brian L Winer,K. S. Wood,Matthew Wood,Ryo Yamazaki,Zhenwei Yang,Stephan Zimmer +200 more
TL;DR: The characteristic pion-decay feature is detected in the gamma-ray spectra of two SNRs, IC 443 and W44, with the Fermi Large Area Telescope, providing direct evidence that cosmic-ray protons are accelerated in SNRs.
Journal ArticleDOI
The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
Markus Ackermann,Marco Ajello,Andrea Albert,W. B. Atwood,Luca Baldini,Jean Ballet,Guido Barbiellini,Denis Bastieri,Keith Bechtol,Ronaldo Bellazzini,Elisabetta Bissaldi,Roger Blandford,E. D. Bloom,Eugenio Bottacini,T. J. Brandt,Johan Bregeon,P. Bruel,R. Buehler,Sara Buson,G. A. Caliandro,R. A. Cameron,M. Caragiulo,P. A. Caraveo,E. Cavazzuti,Claudia Cecchi,E. Charles,A. Chekhtman,James Chiang,G. Chiaro,Stefano Ciprini,R. Claus,Johann Cohen-Tanugi,Jan Conrad,Alessandro Cuoco,S. Cutini,F. D'Ammando,A. De Angelis,F. de Palma,Charles D. Dermer,Seth Digel,E. Do Couto E Silva,Persis S. Drell,C. Favuzzi,E. C. Ferrara,W. B. Focke,Anna Franckowiak,Yasushi Fukazawa,Stefan Funk,P. Fusco,F. Gargano,Dario Gasparrini,S. Germani,Nicola Giglietto,P. Giommi,Ferdinando Giordano,Marcello Giroletti,G. Godfrey,G. A. Gomez-Vargas,I. A. Grenier,Sylvain Guiriec,Michael Gustafsson,Daniela Hadasch,K. Hayashi,E. Hays,John W. Hewitt,P. Ippoliti,T. Jogler,Gudlaugur Johannesson,A. S. Johnson,W. N. Johnson,T. Kamae,Jun Kataoka,Jürgen Knödlseder,M. Kuss,Stefan Larsson,Luca Latronico,J. Li,Liang Li,Francesco Longo,F. Loparco,B. Lott,M. N. Lovellette,P. Lubrano,G. M. Madejski,Alberto Manfreda,Francesco Massaro,M. Mayer,M. N. Mazziotta,Julie McEnery,P. F. Michelson,W. Mitthumsiri,Tsunefumi Mizuno,A. A. Moiseev,M. E. Monzani,A. Morselli,Igor V. Moskalenko,S. Murgia,Rodrigo Nemmen,E. Nuss,T. Ohsugi,Nicola Omodei,E. Orlando,J. F. Ormes,David Paneque,J.H. Panetta,J. S. Perkins,Melissa Pesce-Rollins,F. Piron,G. Pivato,T. A. Porter,S. Rainò,R. Rando,M. Razzano,Soebur Razzaque,A. Reimer,Olaf Reimer,T. Reposeur,Steven Ritz,R. W. Romani,Miguel A. Sánchez-Conde,M. Schaal,André Schulz,Carmelo Sgrò,E. J. Siskind,Gloria Spandre,P. Spinelli,Andrew W. Strong,D. J. Suson,Hiromitsu Takahashi,J. G. Thayer,J. B. Thayer,L. Tibaldo,M. Tinivella,Diego F. Torres,Gino Tosti,Eleonora Troja,Yasunobu Uchiyama,Giacomo Vianello,Michael David Werner,Brian L Winer,K. S. Wood,Matthew J.A. Wood,Gabrijela Zaharijas,Shanta M. Zimmer +143 more
TL;DR: The IGRB spectrum shows a significant high-energy cutoff feature, and can be well described over nearly four decades in energy by a power law with exponential cutoff having a spectral index of $2.32\pm0.02$ and a break energy of $(279\pm52)$ GeV using our baseline diffuse Galactic emission model as mentioned in this paper.