dc.contributor.author | Abdo, A.A. | |
dc.contributor.author | Venter, C. | |
dc.contributor.author | Ackermann, M. | |
dc.contributor.author | Ajello, M. | |
dc.contributor.author | Allafort, A. | |
dc.contributor.author | Fermi LAT | |
dc.date.accessioned | 2014-04-24T10:04:29Z | |
dc.date.available | 2014-04-24T10:04:29Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Abdo, A.A. et al. 2010. Discovery of pulsed γ-rays from PSR J0034-0534 with the Fermi Large Area Telescope: a case for co-located radio and γ-ray emission regions. Astrophysical journal, 712(2):957-963. [http://dx.doi.org/10.1088/0004-637X/712/2/957] | en_US |
dc.identifier.issn | 0004-637x | |
dc.identifier.issn | 1538-4357 (Online) | |
dc.identifier.uri | http://hdl.handle.net/10394/10470 | |
dc.identifier.uri | http://dx.doi.org/10.1088/0004-637X/712/2/957 | |
dc.identifier.uri | https://iopscience.iop.org/0004-637X/712/2/957/pdf/0004-637X_712_2_957.pdf | |
dc.description.abstract | Millisecond pulsars (MSPs) have been firmly established as a class of γ-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, significant γ-ray pulsations at the radio period have been detected from the MSP PSR J0034–0534, making it the ninth clear MSP detection by the LAT. The γ-ray light curve shows two peaks separated by 0.274 ± 0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The ≥0.1 GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8 ± 0.6 ± 0.1 GeV and a photon index of 1.5 ± 0.2 ± 0.1, first errors are statistical and second are systematic. The near-alignment of the radio and γ-ray peaks strongly suggests that the radio and γ-ray emission regions are co-located and both are the result of caustic formation. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IOP Publishing | en_US |
dc.rights | © 2010. The American Astronomical Society. All rights reserved. | |
dc.subject | Gamma rays: general | en_US |
dc.subject | Pulsars: general | en_US |
dc.subject | Pulsars: individual (PSR J0034−0534) | en_US |
dc.title | Discovery of pulsed γ-rays from PSR J0034-0534 with the Fermi Large Area Telescope: a case for co-located radio and γ-ray emission regions | en_US |
dc.type | Article | en_US |
dc.contributor.researchID | 12006653 - Venter, Christo | |