Results 61 to 70 of about 19,422 (206)

Recombining Plasma in the Gamma-ray Emitting Mixed-Morphology Supernova Remnant 3C 391 [PDF]

, 2014
A group of middle-aged mixed-morphology (MM) supernova remnants (SNRs) interacting with molecular clouds (MC) has been discovered as strong GeV gamma-ray emitters by Large Area Telescope on board Fermi Gamma Ray Space Telescope (Fermi-LAT).
Bayırlı, Arif, Chatterjee, Anshu, Ercan, E. Nihal, Ergin, Tülün, Majumdar, Pratik, Saha, Lab, Sezer, Aytap   +6 more
core   +2 more sources

γ-Ray and ultra-high energy neutrino background suppression due to solar radiation

Physics Letters B, 2023
The Sun emits copious amounts of photons and neutrinos in an approximately spatially isotropic distribution. Diffuse γ-rays and ultra-high energy (UHE) neutrinos from extragalactic sources may subsequently interact and annihilate with the emitted solar ...
Shyam Balaji
doaj  

The VLBA-BU-BLAZAR Multi-Wavelength Monitoring Program

Galaxies, 2016
We describe a multiwavelength program of monitoring of a sample of bright γ-ray blazars, which the Boston University (BU) group has being carrying out since June 2007.
Svetlana Jorstad, Alan Marscher
doaj   +1 more source

A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources

The Astrophysical Journal, 2023
Approximately one-third of existing γ -ray sources identified by the Fermi Gamma-Ray Space Telescope are considered to be unassociated, with no known counterpart at other frequencies/wavelengths.
S. Bruzewski, F. K. Schinzel, G. B. Taylor   +2 more
doaj   +1 more source

3HWC J0631+107/LHAASO J0631+1040: A TeV Halo Powered by the Pulsar J0631+1036?

The Astrophysical Journal, 2023
PSR J0631+1036 is a middle-aged pulsar with properties similar to those of the nearby Geminga pulsar. It is bright in γ -rays, and has been noted as the only source possibly associated with the TeV source 3HWC J0631+107 (also the LHAASO J0631+1040).
Dong Zheng, Zhongxiang Wang, Yi Xing
doaj   +1 more source

Classification of unassociated fermi-LAT sources [PDF]

ITM Web of Conferences, 2022
The Large Area Telescope (LAT) on board NASA’s Fermi Gamma-ray Space telescope has detected 5788 sources in the 4FGL catalogue. Among them, 271 have been associated to pulsars, 3436 to blazars, and 1782 remain unassociated sources.
Meng Qiyu
doaj   +1 more source

Fermi Large Area Telescope Bright Gamma-ray Source List

, 2009
Following its launch in June 2008, the Fermi Gamma-ray Space Telescope (Fermi) began a sky survey in August. The Large Area Telescope (LAT) on Fermi in 3 months produced a deeper and better-resolved map of the gamma-ray sky than any previous space ...
A. A. Abdo, A. A. Moiseev, A. Bouvier, A. Brez, A. Chekhtman, A. de Angelis, A. de Luca, A. K. Harding, A. Makeev, A. Morselli, A. P. Waite, A. Reimer, A. S. Johnson, A. Sander, A. Sellerholm, A. Sierpowska-Bartosik, A. Tramacere, A. Van Etten, A. W. Borgland, A. W. Strong, A. Y. Rodriguez, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Abdo, Aharonian, Albert, Atwood, B. Berenji, B. Giebels, B. L. Winer, B. Lott, B. M. Baughman, C. C. Cheung, C. Cecchi, C. D. Dermer, C. Farnier, C. Favuzzi, C. Meurer, C. Monte, C. Sgrò, C. Shrader, Cheung, Ciprini, D. A. Smith, D. Bastieri, D. Dumora, D. F. Torres, D. Gasparrini, D. Horan, D. J. Suson, D. J. Thompson, D. Kocevski, D. L. Band, D. Paneque, D. Parent, D. S. Davis, D. Sanchez, Damiani, de Ruiter, E. Bonamente, E. C. Ferrara, E. Cavazzuti, E. Charles, E. D. Bloom, E. do Couto e Silva, E. Hays, E. J. Siskind, E. Moretti, E. Nuss, E. Orlando, E. Wallace, F. de Palma, F. Gargano, F. Giordano, F. Kuehn, F. Longo, F. Loparco, F. Piron, F. Ryde, Funk, G. A. Caliandro, G. Barbiellini, G. F. Bignami, G. Godfrey, G. Jóhannesson, G. M. Madejski, G. Spandre, G. Tosti, Green, Guibert, H. F.-W. Sadrozinski, H. Katagiri, H. Tajima, H. Takahashi, Hartman, Healey, Healey, Hunter, I. A. Grenier, I. V. Moskalenko, J. B. Thayer, J. Ballet, J. Bregeon, J. Chiang, J. Cohen-Tanugi, J. Conrad, J. D. Scargle, J. E. Grove, J. E. McEnery, J. F. Ormes, J. G. Thayer, J. H. Panetta, J. Kataoka, J. Knödlseder, J. Lande, J. M. Casandjian, J. P. Norris, J.-L. Starck, K. Bechtol, K. S. Wood, K. Watters, Kargaltsev, L. Baldini, L. Costamante, L. Guillemot, L. Latronico, L. Poupard, L. R. Cominsky, L. S. Rochester, L. Tibaldo, Liu, M. Ackermann, M. Ajello, M. Axelsson, M. Battelino, M. Brigida, M. Dormody, M. E. Monzani, M. Frailis, M. Hayashida, M. Kerr, M. Kuss, M. L. Kocian, M. Lemoine-Goumard, M. Marelli, M. N. Lovellette, M. N. Mazziotta, M. Ohno, M. Ozaki, M. Pepe, M. Pesce-Rollins, M. Razzano, M. Roth, M. S. Shaw, M. S. Strickman, M. Ziegler, M.-H. Grondin, Manchester, N. Gehrels, N. Giglietto, N. Kawai, N. Komin, N. Omodei, N. Rea, N. Vilchez, O. Reimer, O. Tibolla, P. A. Caraveo, P. Bruel, P. D. Smith, P. F. Michelson, P. Fusco, P. Giommi, P. L. Nolan, P. Lubrano, P. M. Saz Parkinson, P. S. Drell, P. S. Ray, P. Spinelli, P. Wang, Paredes, Pittori, Porter, Protassov, R. A. Cameron, R. Bellazzini, R. C. Hartman, R. Claus, R. Corbet, R. D. Blandford, R. Dubois, R. E. Hughes, R. P. Johnson, R. Rando, R. W. Romani, Roberts, S. Ciprini, S. Cutini, S. E. Healey, S. Funk, S. Germani, S. Guiriec, S. J. Fegan, S. McGlynn, S. Murgia, S. Rainò, S. Ritz, S. W. Digel, S.-H. Lee, Sowards-Emmerd, Strong, Sutherland, T. A. Porter, T. E. Stephens, T. Glanzman, T. H. Burnett, T. J. Johnson, T. Kamae, T. L. Schalk, T. L. Usher, T. Mizuno, T. Nakamori, T. Ohsugi, T. Reposeur, T. Takahashi, T. Tanaka, T. Ylinen, Tibolla, Tramacere, V. Pelassa, V. Vitale, W. B. Atwood, W. B. Focke, W. McConville, W. Mitthumsiri, W. N. Johnson, Y. Fukazawa, Y. Hanabata, Y. Uchiyama   +252 more
core   +1 more source

Explaining the GeV excess with exploding black holes

Physics Letters B, 2023
Black holes may form in present-day collapse of microscopic structures of dark matter. We show that, if microstructure black holes (MSBH) with mass m∼1013 g are produced, the spectrum of gamma rays from their evaporation agrees remarkably well with the ...
Zachary S.C. Picker, Alexander Kusenko
doaj  

Progress in Multi-wavelength and Multi-Messenger Observations of Blazars and Theoretical Challenges

Galaxies, 2019
This review provides an overview of recent advances in multi-wavelength and multi-messenger observations of blazars, the current status of theoretical models for blazar emission, and prospects for future facilities.
Markus Böttcher
doaj   +1 more source

The multi-faceted synergy between Swift and Fermi in radio-loud AGN studies

, 2015
Since its launch in 2008 June, the Fermi Gamma-ray Space Telescope has opened a new era in high-energy astrophysics. The unprecedented sensitivity, angular resolution and effective area of the Large Area Telescope on board Fermi, together with the nearly
D'Ammando, F.
core   +1 more source