English
Related papers

Related papers: Fermi Large Area Telescope Fourth Source Catalog D…

200 papers

We present a systematic search for spatial association between a high confidence sample of 3,166 morphologically selected galaxy mergers drawn from the initial convolutional neural network (CNN) catalog of 328,151 candidate mergers and…

High Energy Astrophysical Phenomena · Physics 2025-09-15 Siddhant Manna , Shantanu Desai

Revealing the nature of unassociated high-energy (> 100 MeV) gamma-ray sources remains a challenge 35 years after their discovery. Of the 934 gamma-ray sources at high Galactic latitude (|b| > 15 degrees) in the First Fermi-LAT catalogue…

High Energy Astrophysical Phenomena · Physics 2010-11-25 N. Mirabal , D. Nieto , S. Pardo

In this letter we present the result of the cross correlation between the 4th INTEGRAL/IBIS soft gamma-ray catalog, in the range 20-100 keV, and the Fermi LAT bright source list of objects emitting in the 100 MeV - 100 GeV range. The main…

High Energy Astrophysical Phenomena · Physics 2014-11-20 P. Ubertini , V. Sguera , J. B. Stephen , L. Bassani , A. Bazzano , A. J. Bird

In the 4FGL-DR4 point-source catalog of the Large Area Telescope (LAT) onboard NASA's Fermi Gamma-ray Observatory (Fermi-LAT), around a third of the sources are still unidentified (unIDs). In this work, we perform a detailed study of one of…

We search the Fermi-LAT photon database for an extended gamma-ray emission which could be associated with any of the 581 previously detected gamma-ray bursts (GRBs) visible to the Fermi-LAT. For this purpose we compare the number of photons…

High Energy Astrophysical Phenomena · Physics 2012-03-08 G. I. Rubtsov , M. S. Pshirkov , P. G. Tinyakov

The fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 2863 objects located at high Galactic latitudes (|b|>10{\deg}).…

High Energy Astrophysical Phenomena · Physics 2020-10-29 LAT collaboration

The first Fermi Large Area Telescope (LAT) catalogue of sources (1FHL) emitting at high energies (above 10 GeV) reports the details of 514 objects detected in the first three years of the Fermi mission. Of these, 71 were reported as…

High Energy Astrophysical Phenomena · Physics 2015-06-24 R. Landi , L. Bassani , J. B. Stephen , N. Masetti , A. Malizia , P. Ubertini

In its first four years of operation, the Fermi Large Area Telescope (LAT) detected 3033 $\gamma$-ray emitting sources. In the Fermi-LAT Third Source Catalogue (3FGL) about 50% of the sources have no clear association with a likely…

High Energy Astrophysical Phenomena · Physics 2017-07-19 David Salvetti , Graziano Chiaro , Giovanni La Mura , David J. Thompson

We present a search for spatial extension in high-latitude ($|b|>5^\circ$) sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Catalog, which provides source extensions (or upper limits…

High Energy Astrophysical Phenomena · Physics 2018-09-13 LAT Collaboration , Jonathan Biteau

The third catalog of active galactic nuclei (AGNs) detected by the Fermi-LAT (3LAC) is presented. It is based on the third Fermi-LAT catalog (3FGL) of sources detected between 100 MeV and 300 GeV with a Test Statistic (TS) greater than 25,…

High Energy Astrophysical Phenomena · Physics 2015-09-16 M. Ackermann , M. Ajello , W. Atwood , L. Baldini , J. Ballet , G. Barbiellini , D. Bastieri , J. Gonzalez , R. Bellazzini , E. Bissaldi , R. Blandford , E. Bloom , R. Bonino , E. Bottacini , T. Brandt , J. Bregeon , R. Britto , P. Bruel , R. Buehler , S. Buson , G. Caliandro , R. Cameron , M. Caragiulo , P. Caraveo , J. Casandjian , E. Cavazzuti , C. Cecchi , E. Charles , A. Chekhtman , C. Cheung , J. Chiang , G. Chiaro , S. Ciprini , R. Claus , J. Cohen-Tanugi , L. Cominsky , J. Conrad , S. Cutini , R. D'Abrusco , F. D'Ammando , A. Angelis , R. Desiante , S. Digel , L. Venere , P. Drell , C. Favuzzi , S. Fegan , E. Ferrara , J. Finke , W. Focke , A. Franckowiak , L. Fuhrmann , A. Furniss , P. Fusco , F. Gargano , D. Gasparrini , N. Giglietto , P. Giommi , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , I. Grenier , J. Grove , S. Guiriec , J. W. Hewitt , A. Hill , D. Horan , G. J'ohannesson , A. Johnson , W. Johnson , J. Kataoka , M. Kuss , G. Mura , S. Larsson , L. Latronico , C. Leto , J. Li , L. Li , F. Longo , F. Loparco , B. Lott , M. Lovellette , P. Lubrano , G. Madejski , M. Mayer , M. Mazziotta , J. McEnery , P. Michelson , T. Mizuno , A. Moiseev , M. Monzani , A. Morselli , I. Moskalenko , S. Murgia , E. Nuss , M. Ohno , T. Ohsugi , R. Ojha , N. Omodei , M. Orienti , E. Orlando , A. Paggi , D. Paneque , J. Perkins , M. Pesce-Rollins , F. Piron , G. Pivato , T. Porter , S. Rain`o , R. Rando , M. Razzano , S. Razzaque , A. Reimer , O. Reimer , R. Romani , D. Salvetti , M. Schaal , F. Schinzel , A. Schulz , C. Sgr`o , E. Siskind , K. Sokolovsky , F. Spada , G. Spandre , P. Spinelli , L. Stawarz , D. Suson , H. Takahashi , T. Takahashi , Y. Tanaka , J. Thayer , J. Thayer , L. Tibaldo , D. Torres , E. Torresi , G. Tosti , E. Troja , Y. Uchiyama , G. Vianello , B. Winer , K. Wood , S. Zimmer

The Fermi Large Area Telescope (Fermi-LAT) 3FHL catalog is the latest catalog of >10 GeV sources and will remain an important resource for the high-energy community for the foreseeable future. Therefore, it is crucial that this catalog is…

High Energy Astrophysical Phenomena · Physics 2020-10-14 Ross Silver , Stefano Marchesi , Lea Marcotulli , Aman Kaur , Meenakshi Rajagopal , Marco Ajello

With almost 15 years of data taken by the Large Area Telescope (LAT) onboard the Fermi satellite we discovered an extended source of GeV emission in the region of the very-high-energy (TeV) source 1LHAASO J1945+2424. This TeV source is more…

High Energy Astrophysical Phenomena · Physics 2023-12-05 Miguel Araya , J. A. Álvarez-Quesada

Dark matter annihilations taking place in nearby subhalos could appear as gamma-ray sources without detectable counterparts at other wavelengths. In this study, we consider the collection of unassociated gamma-ray sources reported by the…

High Energy Astrophysical Phenomena · Physics 2015-12-23 Bridget Bertoni , Dan Hooper , Tim Linden

This catalog summarizes 117 high-confidence > 0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars discovered using LAT data, through…

High Energy Astrophysical Phenomena · Physics 2013-09-25 LAT collaboration

The fourth Fermi Large Area Telescope (LAT) catalog (4FGL) contains 5064 $\gamma$-ray sources detected at high significance, but 26% of them still lack associations at other wavelengths. The SPT-SZ survey, conducted between 2008 and 2011…

High Energy Astrophysical Phenomena · Physics 2023-01-04 Lizhong Zhang , Joaquin D. Vieira , Marco Ajello , Matthew A. Malkan , Melanie A. Archipley , Joseph Capota , Allen Foster , Greg Madejski

We report the detection of two new gamma-ray sources in the Fermi-LAT sky (Pass 8) at energies higher than 20 GeV, and confirmed at lower energies, using a source detection tool based on the Minimum Spanning Tree algorithm. One of these…

High Energy Astrophysical Phenomena · Physics 2017-01-25 R. Campana , A. Maselli , E. Bernieri , E. Massaro

During its first 2 years of mission the Fermi-LAT instrument discovered more than 1,800 gamma-ray sources in the 100 MeV to 100 GeV range. Despite the application of advanced techniques to identify and associate the Fermi-LAT sources with…

High Energy Astrophysical Phenomena · Physics 2016-03-02 David Salvetti

We present the First Cosmic Gamma-ray Horizon (1CGH) catalogue, featuring $\gamma$-ray detections above 10 GeV based on 16 years of observations with the Fermi Large Area Telescope (LAT) satellite. After carefully selecting a sample of…

High Energy Astrophysical Phenomena · Physics 2025-03-14 Bruno Arsioli , Yu-Ling Chang , Luca Ighina

We present the fourth in a series of catalogs of gamma-ray bursts (GRBs) observed with Fermi's Gamma-Ray Burst Monitor (Fermi-GBM). It extends the six year catalog by four more years, now covering the ten year time period from trigger…

The Fermi-LAT DR1 and DR2 4FGL catalogues feature more than 5000 gamma-ray sources of which about one fourth are not associated with already known objects, and approximately one third are associated with blazars of uncertain nature. We…

High Energy Astrophysical Phenomena · Physics 2021-06-30 S. Germani , G. Tosti , . Lubrano , S. Cutini , I. Mereu , A. Berretta