Results 71 to 80 of about 19,422 (206)

Discovery of gamma-ray emission from the supernova remnant Kes 17 with Fermi Large Area Telescope [PDF]

, 2011
We report the discovery of GeV emission at the position of supernova remnant Kes 17 by using the data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope.
Cheng, K. S., Huang, R. H. H., Hui, C. Y., Kong, A. K. H., Tam, P. H. T., Wu, E. M. H., Wu, J. H. K.   +6 more
core   +2 more sources

On the Gamma-Ray Emission of the Andromeda Galaxy M31

The Astrophysical Journal Letters, 2023
Using the γ -ray data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope (Fermi) for ∼14 yr, we examine the high-energy emission emanating from the center of the Andromeda galaxy M31.
Yi Xing, Zhongxiang Wang, Dong Zheng, Jie Li   +3 more
doaj   +1 more source

Dark Matter Signals in the gamma-ray sky

EPJ Web of Conferences, 2014
Detection of gamma rays and cosmic rays from the annihilation or decay of dark matter particles is a promising method for identifying dark matter, understanding its intrinsic properties, and mapping its distribution in the universe.
Morselli Aldo
doaj   +1 more source

BL Lacertae Objects and the Extragalactic Gamma-Ray Background

, 2011
A tight correlation between gamma-ray and radio emission is found for a sample of BL Lacertae (BL Lac) objects detected by Fermi Gamma-ray Space Telescope (Fermi) and the Energetic Gamma-Ray Experiment Telescope (EGRET).
Abdo, Abdo, Atwood, Bai, Cao, Chiang, Dermer, Dermer, Dodson, Dondi, Fan, Fan, Fan, Fan Li, Gear, Georganopoulos, Ghisellini, Giroletti, Gu, Hartman, Helmboldt, Horiuchi, Kataoka, Komossa, Kovalev, Liu, Mattox, Michelson, Narumoto, Padovani, Padovani, Sreekumar, Strong, Thompson, Wang, Xin-Wu Cao, Yuan, Zhang, Zhou, Zhou   +39 more
core   +1 more source

Numerical Simulations for Optimizing Small Satellite Constellations for TGF Studies

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 8, 28 April 2025.
Abstract The detection of Terrestrial Gamma ray Flashes (TGFs) from space is mostly made by astrophysics satellites, which only provide single‐point measurements. Future TGF missions could consist in performing simultaneous detection by a detector array in space.
Melody Pallu, Sebastien Celestin, Philippe Laurent   +2 more
wiley   +1 more source

Fermi observations of high-energy gamma-ray emission from GRB 080825C

, 2009
The Fermi Gamma-ray Space Telescope (FGST) has opened a new high-energy window in the study of Gamma-Ray Bursts (GRBs). Here we present a thorough analysis of GRB 080825C, which triggered the Fermi Gamma-ray Burst Monitor (GBM), and was the first firm ...
A. A. Abdo, A. Bouvier, A. Brez, A. Chekhtman, A. de Angelis, A. Goldstein, A. J. van der Horst, A. K. Harding, A. Makeev, A. Morselli, A. P. Waite, A. S. Johnson, A. Sander, A. Tramacere, A. von Kienlin, A. W. Borgland, A. Y. Rodriguez, Abdo, Atwood, B. Berenji, B. Giebels, B. L. Winer, B. Lott, Band, Baring, Bouvier, C. C. Cheung, C. Cecchi, C. D. Dermer, C. Farnier, C. Favuzzi, C. Kouveliotou, C. Meegan, C. Meurer, C. Monte, C. Sgrò, C. Wilson-Hodge, Cutini, D. A. Smith, D. Bastieri, D. Dumora, D. F. Torres, D. Gasparrini, D. J. Suson, D. Kocevski, D. L. Band, D. Paneque, D. Parent, D. Sanchez, E. Bissaldi, E. Bonamente, E. D. Bloom, E. do Couto e Silva, E. Hays, E. J. Siskind, E. Moretti, E. Nuss, E. Orlando, F. de Palma, F. Gargano, F. Giordano, F. Kuehn, F. Longo, F. Loparco, F. Piron, F. Ryde, G. A. Caliandro, G. Barbiellini, G. Godfrey, G. Jóhannesson, G. Spandre, G. Tosti, Granot, Granot, Gregory, H. F.-W. Sadrozinski, H. Katagiri, H. Tajima, H. Takahashi, 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. Granot, J. H. Panetta, J. Kataoka, J. Knödlseder, J. M. Casandjian, J. P. Norris, K. Asano, K. Bechtol, K. S. Wood, L. Baldini, L. Gibby, L. Guillemot, L. Latronico, L. R. Cominsky, L. S. Rochester, L. Tibaldo, Lithwick, Loredo, M. Ackermann, M. Axelsson, M. Brigida, M. E. Monzani, M. Frailis, M. Hayashida, M. Kerr, M. Kuss, M. N. Lovellette, M. N. Mazziotta, M. Ohno, M. Ozaki, M. Pepe, M. Pesce-Rollins, M. Razzano, M. Roth, M. S. Briggs, M. S. Strickman, M. Stamatikos, M. Ziegler, M.-H. Grondin, McEnery, McEnery, Meegan, N. Gehrels, N. Giglietto, N. Kawai, N. Komin, N. Omodei, N. Vilchez, O. Reimer, Ohno, Ohno, Ohno, Omodei, Omodei, P. A. Caraveo, P. Bruel, P. D. Smith, P. F. Michelson, P. Fusco, P. L. Nolan, P. Lubrano, P. M. Saz Parkinson, P. N. Bhat, P. S. Drell, P. Spinelli, P. Wang, Pe'er, R. A. Cameron, R. Bellazzini, R. Claus, R. Dubois, R. E. Hughes, R. Preece, R. Rando, S. Ciprini, S. Cutini, S. Germani, S. Guiriec, S. McBreen, S. McGlynn, S. Murgia, S. Rainò, S. Razzaque, S. Ritz, S. W. Digel, Sari, Sari, T. A. Porter, T. Glanzman, T. H. Burnett, T. Kamae, T. L. Usher, T. Mizuno, T. Nakamori, T. Ohsugi, T. Reposeur, T. Tanaka, T. Ylinen, Tajima, V. Chaplin, V. Connaughton, V. Pelassa, V. Vasileiou, V. Vitale, Van der Horst, W. B. Atwood, W. B. Focke, W. Mitthumsiri, W. N. Johnson, W. S. Paciesas, Wang, Y. Fukazawa, Y. Hanabata, Y. Uchiyama   +205 more
core   +1 more source

Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies

Galaxies, 2019
Before the launch of the Fermi Gamma-ray Space Telescope satellite only two classes of active galactic nuclei (AGN) were known to generate relativistic jets and thus to emit up to the γ -ray energy range: blazars and radio galaxies, both hosted
Filippo D’Ammando
doaj   +1 more source

Review on Uniaxial Negative Thermal Expansion of Tr‐Zr Superconductors

MetalMat, Volume 2, Issue 1, March 2025.
In this paper, we review recent research progress of a study of uniaxial negative thermal expansion (NTE) along the c‐axis with transition (Tr) metal zirconide TrZr2 and TrZr3 superconductors. We introduce the unique thermal expansion properties of TrZr2 and TrZr3 and the flexibility of controlling thermal expansion properties.
Yuto Watanabe, Yoshikazu Mizuguchi
wiley   +1 more source

Likely Detection of γ-Ray Pulsations of PSR J1717+4308A in NGC 6341 and Implication of the γ-Ray Millisecond Pulsars in Globular Clusters

The Astrophysical Journal, 2023
We report our analysis results for the globular cluster (GC) NGC 6341 (M92), as a millisecond pulsar (MSP) J1717+4308A has recently been reported found in this GC.
Pengfei Zhang, Yi Xing, Zhongxiang Wang, Wei Wu, Zhangyi Chen   +4 more
doaj   +1 more source

Initial Thermal States of Super‐Earth Exoplanets and Implications for Early Dynamos

Journal of Geophysical Research: Planets, Volume 130, Issue 2, February 2025.
Abstract The accretion of Earth and the formation of a metallic core released a large amount of primordial heat and may have enabled its evolution into a habitable world. Metal‐silicate segregation likely occurs in super‐Earth exoplanets as well, but its influence on their initial thermal states has not been fully examined.
Nathaniel I. White, Jie Li
wiley   +1 more source