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Title: Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV

Journal Article · · The Astrophysical Journal (Online)
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  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Clemson Univ., Clemson, SC (United States)
  3. Univ. di Pisa and Istituto Nazionale di Fisica Nucleare, Pisa (Italy)
  4. Univ. Paris Diderot, Gif sur Yvette (France)
  5. Istituto Nazionale di Fisica Nucleare, Trieste (Italy); Univ. di Trieste, Trieste (Italy)
  6. Istituto Nazionale di Fisica Nucleare, Padova (Italy); Univ. di Padova, Padova (Italy)
  7. Istituto Nazionale de Fisica Nucleare, Pisa (Italy)
  8. Istituto Nazionale de Fisica Nucleare, Bari (Italy)
  9. Stanford Univ., Stanford, CA (United States)
  10. Istituto Nazionale di Fisica Nucleare, Torino (Italy); Univ. degli Studi di Torino, Torino (Italy)
  11. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  12. Univ. Montpellier, Montpellier (France)
  13. Ecole Polytechnique, Palaiseau (France)
  14. Istituto Nazionale di Fisica Nucleare, Bari (Italy); "M. Merlin" dell'Univ. e del Politecnico di Bari, Bari (Italy)
  15. INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica Milano, Milano (Italy)
  16. Agenzia Spaziale Italiana (ASI) Science Data Center, Roma (Italy)
  17. Istituto Nazionale di Fisica Nucleare, Perugia (Italy); Univ. degli Studi di Perugia, Perugia (Italy)
  18. George Mason Univ., Fairfax, VA (United States)
  19. Naval Research Lab., Washington, D.C. (United States)
  20. Univ. di Padova, Padova (Italy)
  21. Agenzia Spaziale Italiana (ASI) Science Data Center, Roma (Italy); Istituto Nazionale di Fisica Nucleare, Perugia (Italy)
  22. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of Maryland, College Park, MD (United States)
  23. Istituto Nazionale di Fisica Nucleare, Bari (Italy)
  24. INAF Istituto di Radioastronomia, Bologna (Italy); Univ. di Bologna, Bologna (Italy)
  25. Istituto Nazionale di Fisica Nucleare, Bari (Italy); Univ. Telematica Pegaso, Napoli (Italy)
  26. Istituto Nazionale di Fisica Nucleare, Torino (Italy); Univ. di Udine, Udine (Italy)
  27. Ecole polytechnique, Palaiseau (France)
  28. Hiroshima Univ., Hiroshima (Japan)
  29. Erlangen Centre for Astroparticle Physics, Erlangen (Germany)
  30. INAF Istituto di Radioastronomia, Bologna (Italy)
  31. Univ. Bordeaux, Gradignan Cedex (France)
  32. Univ. d'Orleans, Orleans Cedex (France); Observatoire de Paris, Nancay (France)
  33. Univ. of North Florida, Jacksonville, FL (United States)
  34. Chinese Academy of Sciences, Kunming (China); Chinese Academy of Sciences, Beijing (China)
  35. Univ. of Iceland, Reykjavik (Iceland); Nordita, Stockholm (Sweden)
  36. Univ. of Tokyo, Tokyo (Japan)
  37. Istituto Nazionale di Fisica Nucleare, Pisa (Italy)
  38. KTH Royal Institute of Technology, Stockholm (Sweden); The Oskar Klein Centre for Cosmoparticle Physics, Stockholm (Sweden)
  39. Institute of Space Sciences (IEEC-CSIC), Barcelona (Spain)
  40. Istituto Nazionale di Fisica Nucleare, Perugia (Italy)
  41. Univ. of Maryland, College Park, MD (United States)
  42. Istituto Nazionale di Fisica Nucleare, Torino (Italy)
  43. Mahidol Univ., Bangkok (Thailand)
  44. Istituto Nazionale di Fisica Nucleare, Roma (Italy)
  45. Univ. of Denver, Denver, CO (United States)
  46. Max-Planck-Institut fur Physik, Munchen (Germany)
  47. Istituto Nazionale di Fisica Nucleare, Trieste (Italy)
  48. Istituto Nazionale di Fisica Nucleare, Pisa (Italy);
  49. Univ. of Johannesburg, Auckland Park (South Africa)
  50. Leopold-Franzens-Univ. Innsbruck, Innsbruck (Austria); Stanford Univ., Stanford, CA (United States)
  51. NYCB Real-Time Computing Inc., Lattingtown, NY (United States)
  52. Purdue Univ. Calumet, Hammond, IN (United States)
  53. Institute of Space Sciences (IEEC-CSIC), Barcelona (Spain); Institucio Catalana de Recerca i Estudis Acancats (ICREA), Barcelona (Spain)
  54. Istituto Nazionale di Fisica Nucleare, Perugia (Italy); Univ. degli Studi di Perugia, Periugia (Italy)
  55. Praxis Inc., Alexandria, VA (United States)
+ Show Author Affiliations

The spatial extension of a γ-ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ-ray sources is greatly improved by the newly delivered Fermi-Large Area Telescope (LAT) Pass 8 event-level analysis, which provides a greater acceptance and an improved point-spread function, two crucial factors for the detection of extended sources. Here, we present a complete search for extended sources located within 7° from the Galactic plane, using 6 yr of Fermi-LAT data above 10 GeV. We find 46 extended sources and provide their morphological and spectral characteristics. As a result, this constitutes the first catalog of hard Fermi-LAT extended sources, named the Fermi Galactic Extended Source Catalog, which allows a thorough study of the properties of the Galactic plane in the sub-TeV domain.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1374391
Journal Information:
The Astrophysical Journal (Online), Vol. 843, Issue 2; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 54 works
Citation information provided by
Web of Science

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Cited By (29)

Disentangling multiple high-energy emission components in the Vela X pulsar wind nebula with the Fermi Large Area Telescope journal September 2018
Particle transport within the pulsar wind nebula HESS J1825–137 journal January 2019
Extreme star formation in the Milky Way: luminosity distributions of young stellar objects in W49A and W51 journal March 2018
Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC telescopes text January 2018
Exploring the Properties of Choked Gamma-ray Bursts with IceCube’s High-energy Neutrinos journal March 2018
2FHL J0826.1–4500: Discovery of a Possible Shock–Cloud Interaction on the Western Edge of the Vela Supernova Remnant journal January 2019
Evolution of High-energy Particle Distribution in Supernova Remnants journal March 2019
Searching a Thousand Radio Pulsars for Gamma-Ray Emission journal January 2019
AGILE Study of the Gamma-Ray Emission from the SNR G78.2+2.1 (Gamma Cygni) journal June 2019
The GeV Emission in the Field of the Star-forming Region W30 Revisited journal August 2019
Discovery of a Spatially Extended GeV Source in the Vicinity of the TeV Halo Candidate 2HWC J1912+099: a TeV Halo or Supernova Remnant? journal January 2020
3FHL: The Third Catalog of Hard Fermi -LAT Sources journal September 2017
Fermi Large Area Telescope Fourth Source Catalog journal March 2020
Fermi Large Area Telescope Fourth Source Catalog text January 2020
3FHL: The Third Catalog of Hard Fermi -LAT Sources text January 2017
Particle transport within the pulsar wind nebula HESS J1825-137 text January 2018
Discovery of a spatially extended GeV source in the vicinity of the TeV halo candidate 2HWC J1912+099: a TeV halo or supernova remnant ? text January 2020
Fermi Large Area Telescope Fourth Source Catalog collection January 2020
Particle Transport within the Pulsar Wind Nebula HESS J1825-137 text January 2018
Particle transport within the pulsar wind nebula HESS J1825–137 text January 2019
Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC telescopes journal March 2018
3FHL: The Third Catalog of Hard Fermi-LAT Sources text January 2017
Exploring the Properties of Choked Gamma-Ray Bursts with IceCube's High Energy Neutrinos text January 2017
Disentangling multiple high-energy emission components in the Vela X pulsar wind nebula with the Fermi Large Area Telescope text January 2018
Evolution of high-energy particle distribution in Supernova Remnants text January 2018
Searching a Thousand Radio Pulsars for Gamma-ray Emission text January 2018
AGILE study of the gamma-ray emission from the SNR G78.2+2.1 (Gamma Cygni) text January 2019
The GeV emission in the field of the star-forming region W30 revisited text January 2019
Discovery of a spatially extended GeV source in the vicinity of the TeV halo candidate 2HWC J1912+099: a TeV halo or supernova remnant ? text January 2019

Linked Research (1)

Figures / Tables (26)

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