Results 121 to 130 of about 19,422 (206)

Neutron star mass estimates from gamma-ray eclipses in spider millisecond pulsar binaries. [PDF]

Nat Astron, 2023
Clark CJ, Kerr M, Barr ED, Bhattacharyya B, Breton RP, Bruel P, Camilo F, Chen W, Cognard I, Cromartie HT, Deneva J, Dhillon VS, Guillemot L, Kennedy MR, Kramer M, Lyne AG, Sánchez DM, Nieder L, Phillips C, Ransom SM, Ray PS, Roberts MSE, Roy J, Smith DA, Spiewak R, Stappers BW, Tabassum S, Theureau G, Voisin G.   +28 more
europepmc   +1 more source

Observations of the Large Magellanic Cloud with Fermi

, 2009
2009 Fermi Symposium, eConf Proceedings C091122We report on observations of the Large Magellanic Cloud with the Fermi Gamma-Ray Space Telescope. The LMC is clearly detected with the Large Area Telescope (LAT) and for the first time the emission is ...
Jean, Pierre, Knödlseder, Jürgen
core   +2 more sources

PKS 2254+074: A Blazar in Likely Association with the Neutrino Event IceCube-190619A

The Astrophysical Journal Letters
We report our study of the field of the ≃0.2 PeV neutrino event IC-190619A. This neutrino belongs to Gold events, which more likely have an astrophysical origin.
Shunhao Ji, Zhongxiang Wang
doaj   +1 more source

Pushing big science frontiers in China. [PDF]

Nat Rev Phys, 2023
Xin L.
europepmc   +1 more source

Chandra X-Ray Observatory Observations of 13 Fermi LAT Sources

The Astrophysical Journal
In the latest data release from the Fermi Gamma-ray Space Telescope (the 4th Fermi LAT 14 yr Catalog, or 4FGL), more than 50% of the Galactic sources are yet to be identified.
Blagoy Rangelov, Hui Yang, Brice Williams, Oleg Kargaltsev, Jeremy Hare, Kean Martinic   +5 more
doaj   +1 more source

SU(2)X vector DM and Galactic Center gamma-ray excess

Physics Letters B, 2015
An unbroken Z3 symmetry remains when a local SU(2)X symmetry is broken spontaneously by a quadruplet. The gauge boson χμ(χ¯μ) carries the dark charge and is the candidate of dark matter (DM).
Chuan-Hung Chen, Takaaki Nomura
doaj  

Sixteen Years of Gamma-Ray Discoveries and AGN Observations with Fermi-LAT

Particles
In June 2024, the Fermi Gamma-Ray Space Telescope (FGST) celebrated its 16th year of operations. The Fermi Large Area Telescope (Fermi-LAT) is the main instrument onboard the FGST satellite and is designed to be sensitive to γ-rays in the energy range ...
Fausto Casaburo, Stefano Ciprini, Dario Gasparrini, Federica Giacchino   +3 more
doaj   +1 more source

Fermi Unassociated Sources in the MeerKAT Absorption Line Survey

The Astrophysical Journal
Over 2000 γ -ray sources identified by the Large Area Telescope on NASA's Fermi Gamma-ray Space Telescope are considered unassociated, meaning that they have no known counterparts in any other frequency regime.
Morgan Himes, Preshanth Jagannathan, Dale A. Frail, Frank Schinzel, Neeraj Gupta, S. A. Balashev, F. Combes, P. P. Deka, H.-R. Klöckner, E. Momjian, J. D. Wagenveld   +10 more
doaj   +1 more source

Very high-energy gamma-ray emission beyond 10 TeV from GRB 221009A. [PDF]

Sci Adv, 2023
LHAASO Collaboration.
europepmc   +1 more source

Discerning Misclassified Flat-spectrum Radio Quasars from Low-frequency-peaked BL Lacertae Objects

The Astrophysical Journal Supplement Series
A sample of 312 low-frequency-peaked BL Lacertae objects (LBLs) and 694 flat-spectrum radio quasars (FSRQs) with the parameters of both redshift and gamma-ray photon spectral index (Γ _γ ) is compiled from the Fourth Catalog of Active Galactic Nuclei ...
S. Liang, W. G. Yang, Y. G. Zheng, S. J. Kang   +3 more
doaj   +1 more source