Results 61 to 70 of about 638,354 (389)

UNVEILING THE NATURE OF THE UNIDENTIFIED GAMMA-RAY SOURCES. IV. THE SWIFT CATALOG OF POTENTIAL X-RAY COUNTERPARTS [PDF]

, 2013
A significant fraction (∼30%) of the high-energy γ-ray sources listed in the second Fermi Large Area Telescope (LAT) catalog are still of unknown origin, having not yet been associated with counterparts at lower energies.
A. Paggi, F. Massaro, R. D’abrusco, H. Smith, N. Masetti, M. Giroletti, G. Tosti, S. Funk   +7 more
semanticscholar   +1 more source

GLAST: Understanding the High Energy Gamma-Ray Sky

, 2004
We discuss the ability of the GLAST Large Area Telescope (LAT) to identify, resolve, and study the high energy gamma-ray sky. Compared to previous instruments the telescope will have greatly improved sensitivity and ability to localize gamma-ray point ...
A Konopelko, A Morselli, A Mücke, AE Wehrle, AK Harding, AM Atoyan, AM Atoyan, AW Strong, AW Strong, AW Strong, B Zhang, BL Dingus, C Montigny von, C Sarazin, CD Dermer, CM Urry, D Donato, DF Torres, DJ Thompson, DJ Thompson, DN Page, E Pfeffermann, EG Berezhko, Esposito, F Aharonian, F Aharonian, F Aharonian, FA Aharonian, FA Aharonian, FA Aharonian, Fossati, FW Stecker, FW Stecker, G Ghisellini, G Ghisellini, G Giovannini, GE Allen, GL Case, GV Bicknell, H Muraishi, IV Moskalenko, IV Moskalenko, J Chiang, J Quinn, J Silk, JH Buckley, JK Daugherty, K Hurley, K Katarzyñski, K Koyama, L Zhang, M Mori, M Pohl, M Punch, M Sikora, MA McLaughlin, MM Gonzalez, MS Jackson, N Gehrels, O Reimer, P Gralewicz, P Padovani, P Sreekumar, P Sreekumar, P Sreekumar, P Ullio, R Enomoto, R Fusco-Femiano, R Morganti, R Mukherjee, R Srinivasan, RC Hartman, RJ Maddalena, RP Pilla, S Colafrancesco, S Rudaz, SD Hunter, SE Boggs, SJ Sturner, SW Digel, SW Digel, T Kifune, T Tanimori, T Yoshikoshi, TA Ensslin, TA Porter, TK Gaisser, Y Rephaeli, YM Butt, YM Butt   +89 more
core   +1 more source

Precessing microblazars and unidentified gamma-ray sources [PDF]

Astronomy & Astrophysics, 2002
The recent discovery by Paredes et al. (2000) of a persistent microquasar that is positionally coincident with an unidentified gamma-ray source has open the possibility that other sources in the Third EGRET Catalog could be interpreted as microquasars as well.
Kaufman Bernadó, María Marina, Romero, Gustavo Esteban, Mirabel Miquele, Igor Felix   +2 more
openaire   +5 more sources

UNVEILING THE NATURE OF UNIDENTIFIED GAMMA-RAY SOURCES. I. A NEW METHOD FOR THE ASSOCIATION OF GAMMA-RAY BLAZARS [PDF]

, 2013
We present a new method for identifying blazar candidates by examining the locus, i.e., the region occupied by the Fermi γ-ray blazars in the three-dimensional color space defined by the WISE infrared colors.
R. D’abrusco, F. Massaro, A. Paggi, N. Masetti, G. Tosti, M. Giroletti, H. Smith   +6 more
semanticscholar   +1 more source

Exploring the bulk of the BL Lac object population:1. parsec-scale radio structures

, 2013
Context. The advent of Fermi is changing our understanding on the radio and gamma-ray emission in Active Galactic Nuclei. Contrary to pre-Fermi ideas, BL Lac objects are found to be the most abundant emitters in the gamma-ray band.
Boccardi, B., Casadio, C., Giovannini, G., Giroletti, M., Kadler, M., Liuzzo, E., Mignano, A., Tamburri, S., Taylor, G. B., Tosti, G.   +9 more
core   +1 more source

Choked Jets and Low-Luminosity Gamma-Ray Bursts as Hidden Neutrino Sources [PDF]

, 2015
We consider gamma-ray burst (GRB) jets that are choked by extended material as sources of high-energy cosmic neutrinos. We take into account the jet propagation physics both inside the progenitor star and the surrounding dense medium.
Nicholas Senno, K. Murase, P. Mészáros
semanticscholar   +1 more source

A future very-high-energy view of our Galaxy

, 2009
The survey of the inner Galaxy with H.E.S.S. was remarkably successful in detecting a wide range of new very-high-energy gamma-ray sources. New TeV gamma-ray emitting source classes were established, although several of the sources remain unidentified ...
Felix A. Aharonian, Frank Rieger, G. Hermann, J. A. Hinton, S. Digel, S. Funk, Werner Hofmann   +6 more
core   +1 more source

Extragalactic sources of TeV gamma rays: a summary [PDF]

New Astronomy Reviews, 2004
The development of techniques whereby gamma rays of energy 100 GeV and above can be studied from the ground, using indirect, but sensitive, techniques has opened up a new area of high energy photon astronomy. The most exciting result that has come from these is the detection of highly variable fluxes of TeV gamma rays from the relativistic jets in ...
T. C. Weekes, D. Horan
openaire   +3 more sources

Determination of ADP/ATP translocase isoform ratios in malignancy and cellular senescence

Molecular Oncology, EarlyView.
The individual functions of three isoforms exchanging ADP and ATP (ADP/ATP translocases; ANTs) on the mitochondrial membrane remain unclear. We developed a method for quantitatively differentiating highly similar human ANT1, ANT2, and ANT3 using parallel reaction monitoring. This method allowed us to assess changes in translocase levels during cellular
Zuzana Liblova, Dominika Maurencova, Barbora Salovska, Marek Kratky, Tomas Mracek, Zuzana Korandova, Alena Pecinova, Pavla Vasicova, David Rysanek, Ladislav Andera, Ivo Fabrik, Rudolf Kupcik, Pavel Kashmel, Pinky Sultana, Vojtech Tambor, Jiri Bartek, Josef Novak, Marie Vajrychova, Zdenek Hodny   +18 more
wiley   +1 more source

Naked Forward Shock Seen in the TeV Afterglow Data of GRB 221009A

The Astrophysical Journal
We explore the implications of the light curve of the early TeV gamma-ray afterglow of GRB 221009A reported by the LHAASO Collaboration. We show that the reported offset of the reference time, T _* , allows the determination of the activation time of the
Dmitry Khangulyan, Felix Aharonian, Andrew M. Taylor   +2 more
doaj   +1 more source