RAPID GAMMA-RAY FLUX VARIABILITY DURING THE 2013 MARCH CRAB NEBULA FLARE
| dc.contributor.author | Mayer, M. | |
| dc.contributor.author | Buehler, R. | |
| dc.contributor.author | Hays, E. | |
| dc.contributor.author | Cheung, C. C. | |
| dc.contributor.author | Dutka, M. S. | |
| dc.contributor.author | Grove, J. E. | |
| dc.contributor.author | Kerr, M. | |
| dc.contributor.author | Ojha, R. | |
| dc.date.accessioned | 2020-04-27T13:55:38Z | |
| dc.date.available | 2020-04-27T13:55:38Z | |
| dc.date.issued | 2013-09-11 | |
| dc.description.abstract | We report on a bright flare in the Crab Nebula detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. The period of significantly increased luminosity occurred in 2013 March and lasted for approximately two weeks. During this period, we observed flux variability on timescales of approximately 5 hr. The combined photon flux above 100 MeV from the pulsar and its nebula reached a peak value of (12.5 ± 0.8) centerdot 10⁻⁶ cm⁻² s⁻¹ on 2013 March 6. This value exceeds the average flux by almost a factor of six and implies a ~20 times higher flux for the synchrotron component of the nebula alone. This is the second brightest flare observed from this source. Spectral and temporal analysis of the LAT data collected during the outburst reveal a rapidly varying synchrotron component of the Crab Nebula while the pulsar emission remains constant in time. | en_US |
| dc.description.sponsorship | Elizabeth Hays and Rolf Bühler acknowledge generous support from the Fermi guest investigator program. This research was funded in part by NASA through Fermi Guest Investigator grant NNH10ZDA001N (proposal number 41213). This research was supported by an appointment to the NASA Postdoctoral Program at the Goddard Space Flight Center, administered by Oak Ridge Associated Universities through a contract with NASA. C.C.C. was supported at NRL by NASA DPR S-15633-Y. The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat à l'Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National dEtudes Spatiales in France. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.1088/2041-8205/775/2/L37 | en_US |
| dc.format.extent | 6 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2rl6q-rzrp | |
| dc.identifier.citation | M. Mayer, R. Buehler, E. Hays, C. C. Cheung, M. S. Dutka, J. E. Grove, M. Kerr, and R. Ojha, RAPID GAMMA-RAY FLUX VARIABILITY DURING THE 2013 MARCH CRAB NEBULA FLARE, The Astrophysical Journal Letters, Volume 775, Number 2,https://doi.org/10.1088%2F2041-8205%2F775%2F2%2Fl37 | en_US |
| dc.identifier.uri | https://doi.org/10.1088%2F2041-8205%2F775%2F2%2Fl37 | |
| dc.identifier.uri | http://hdl.handle.net/11603/18292 | |
| dc.identifier.uri | http://simbad.u-strasbg.fr/simbad/sim-ref?querymethod=bib&simbo=on&submit=submit+bibcode&bibcode=2013ApJ...775L..37M | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IOP | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
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| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | RAPID GAMMA-RAY FLUX VARIABILITY DURING THE 2013 MARCH CRAB NEBULA FLARE | en_US |
| dc.type | Text | en_US |