Identification of Fermi-LAT Gamma-ray Sources Roberto P . Mignani - PowerPoint PPT Presentation

Jun 04, 2023 •284 likes •510 views

Identification of Fermi-LAT Gamma-ray Sources Roberto P . Mignani INAF-Istituto di Astro fi sica Spaziale, Milan (Italy) Janusz Gil Institute of Astronomy, Zielona Gora (Poland) Fermi-LAT Collaboration

Identification of Fermi-LAT Gamma-ray Sources Roberto P . Mignani INAF-Istituto di Astro fi sica Spaziale, Milan (Italy) Janusz Gil Institute of Astronomy, Zielona Gora (Poland) Fermi-LAT Collaboration
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�� SAS-2 COS-B � � � � � 3 sources 25 sources CGRO Fermi 1783 sources (in 2 yr) 271 sources
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3 rd Fermi LAT Gamma-ray Source Catalogue (3FGL) � � Produced out of the first 4 years of operation (Acero+ 2015). 3033 sources above 4 σ • � � • Associated : X-matches with master catalogues. Catalogues may be non homogeneous, outdated, incomplete. Chance coincidence probability. • Identified: Correlated radio/optical/X-ray variability (AGNs, Novae), orbital modulation (XRBs), pulsation (PSRs), extension (SNR,PWN). Multi- λ observations not always simultaneous!
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