Aviso: para depositar documentos, por favor, inicia sesión e identifícate con tu cuenta de correo institucional de la UCM con el botón MI CUENTA UCM. No emplees la opción AUTENTICACIÓN CON CONTRASEÑA
 

Phase-resolved energy spectra of the Crab pulsar in the range of 50-400 GeV measured with the MAGIC telescopes

Simple item page
dc.contributor.authorAntoranz Canales, Pedro
dc.contributor.authorBarrio Uña, Juan Abel
dc.contributor.authorContreras González, José Luis
dc.contributor.authorFonseca González, María Victoria
dc.contributor.authorLópez Moya, Marcos
dc.contributor.authorMiranda Pantoja, José Miguel
dc.contributor.authorNieto Castaño, Daniel
dc.contributor.authorSatalecka, Konstanzja
dc.contributor.authorScapin, Valeria
dc.date.accessioned2023-06-20T03:32:35Z
dc.date.available2023-06-20T03:32:35Z
dc.date.issued2012-04
dc.description© ESO. We would like to thank the Instituto de Astrofisica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The support of the German BMBF and MPG, the Italian INFN, the Swiss National Fund SNF, and the Spanish MICINN is gratefully acknowledged. This work was also supported by the Marie Curie programme, the CPAN CSD2007-00042 and MultiDark CSD2009-00064 projects of the Spanish Consolider-Ingenio 2010 programme, grant DO02-353 of the Bulgarian NSF, grant 127740 of the Academy of Finland, the YIP of the Helmholtz Gemeinschaft, the DFG Cluster of Excellence "Origin and Structure of the Universe", the DFG Collaborative Research Centers SFB823/C4 and SFB876/C3, the Polish MNiSzW grant 745/N-HESS-MAGIC/2010/0 and the Formosa Program between the National Science Council in Taiwan and the Consejo Superior de Investigaciones Cientificas in Spain administered through the grant number NSC100-2923-M-007-001-MY3.
dc.description.abstractWe use 73 h of stereoscopic data taken with the MAGIC telescopes to investigate the very high-energy (VHE) gamma-ray emission of the Crab pulsar. Our data show a highly significant pulsed signal in the energy range from 50 to 400 GeV in both the main pulse (P1) and the interpulse (P2) phase regions. We provide the widest spectra to date of the VHE components of both peaks, and these spectra extend to the energy range of satellite-borne observatories. The good resolution and background rejection of the stereoscopic MAGIC system allows us to cross-check the correctness of each spectral point of the pulsar by comparison with the corresponding (strong and well-known) Crab nebula flux. The spectra of both P1 and P2 are compatible with power laws with photon indices of 4.0 +/- 0.8 (P1) and 3.42 +/- 0.26 (P2), respectively, and the ratio P1/P2 between the photon counts of the two pulses is 0.54 +/- 0.12. The VHE emission can be understood as an additional component produced by the inverse Compton scattering of secondary and tertiary e(+/-) pairs on IR-UV photons.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipGerman BMBF
dc.description.sponsorshipGerman MPG
dc.description.sponsorshipItalian INFN
dc.description.sponsorshipSwiss National Fund SNF
dc.description.sponsorshipSpanish MICINN
dc.description.sponsorshipSpanish Consolider-Ingenio programme
dc.description.sponsorshipBulgarian NSF
dc.description.sponsorshipAcademy of Finland
dc.description.sponsorshipYIP of the Helmholtz Gemeinschaft
dc.description.sponsorshipDFG
dc.description.sponsorshipDFG Collaborative Research Centers
dc.description.sponsorshipPolish MNiSzW
dc.description.sponsorshipNational Science Council in Taiwan
dc.description.sponsorshipConsejo Superior de Investigaciones Científicas in Spain
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/21265
dc.identifier.doi10.1051/0004-6361/201118166
dc.identifier.issn0004-6361
dc.identifier.relatedurlhttp://www.aanda.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/aa/abs/2012/04/aa18166-11/aa18166-11.html
dc.identifier.urihttps://hdl.handle.net/20.500.14352/43805
dc.journal.titleAstronomy & Astrophysics
dc.language.isoeng
dc.publisherEDP Sciences
dc.relation.projectIDCPAN CSD2007-00042
dc.relation.projectIDMultiDark CSD2009-00064
dc.relation.projectIDDO02-353
dc.relation.projectID127740
dc.relation.projectIDSFB823/C4
dc.relation.projectIDSFB876/C3
dc.relation.projectID745/N-HESS-MAGIC/2010/0
dc.relation.projectIDNSC100-2923-M-007-001-MY3
dc.relation.projectIDNSC100-2923-M-007-001-MY3
dc.rights.accessRightsopen access
dc.subject.cdu537
dc.subject.cdu539.1
dc.subject.keywordGamma-ray emission
dc.subject.keywordOuter magnetosphere
dc.subject.keywordSlot gaps
dc.subject.keywordRadiation
dc.subject.keywordAcceleration
dc.subject.keywordNebula
dc.subject.keywordWind.
dc.subject.ucmElectricidad
dc.subject.ucmElectrónica (Física)
dc.subject.ucmFísica nuclear
dc.subject.unesco2202.03 Electricidad
dc.subject.unesco2207 Física Atómica y Nuclear
dc.titlePhase-resolved energy spectra of the Crab pulsar in the range of 50-400 GeV measured with the MAGIC telescopes
dc.typejournal article
dc.volume.number540
dcterms.referencesAbdo, A. A., Ackermann, M., Ajello, M., et al. 2010a, ApJ, 708, 1254. Abdo, A. A., Ackermann, M., Ajello, M., et al. 2010b, ApJS, 187, 460. Aharonian, F. A., & Bogovalov, S. V. 2003, New Astron., 8, 85. Aharonian, F. A., Bogovalov, S. V., & Khangulyan, D. 2012, Nature, 482, 507. Albert, J., Aliu, E., Anderhub, H., et al. 2007, NIM, 494. Albert, J., Aliu, E., Anderhub, H., et al. 2008, NIM, 424. Aleksić, J., Alvarez, E. A., Antonelli, L. A., et al. 2011, ApJ, 742, 43. Aleksić, J., Alvarez, E. A., Antonelli, L. A., et al. 2012, Astropart. Phys., 35, 435. Aliu, E., Anderhub, H., Antonelli, L. A., et al. 2008, Science, 322, 1221. Aliu, E., Arlen, T., Aune, T., et al. 2011, Science, 334, 69. Arons, J. 1983, ApJ, 266, 215. Cheng, K. S., Ho, C., & Ruderman, M. 1986, ApJ, 300, 500. de Jager, O. C., Raubenheimer, B. C., & Swanepoel, J. W. H. 1989, A&A, 221, 180. Du, Y., Qiao, G., & Wang, W. 2012, ApJ, in press [arXiv:1202.1096]. Fierro, J. M., Michelson, P. F., Nolan, P. L., & Thompson, D. J. 1998, ApJ, 494, 734. Fomin, V. P., Stepanian, A. A., Lamb, R. C., et al. 1994, Astropart. Phys., 2, 137 Hobbs, G. B., Edwards, R. T., & Manchester, R. N. 2006, MNRAS, 369, 655. Li, T.-P., & Ma, Y.-Q. 1983, ApJ, 272, 317. Lombardi, S., Berger, K., Colin, P., et al. 2011, in Proc. ICRC 2011 [arXiv:1109.6195]. Lyne, A. G., Pritchard, R. S., & Graham-Smith, F. 1993, MNRAS, 265, 1003. Lyutikov, M., Otte, N., & McCann, A. 2011 [arXiv:1108.3824]. Mitton, S. 1978, The Crab Nebula. Moralejo, A., Gaug, M., Carmona, E., et al. 2009, in Proc. ICRC 2009 [arXiv:0907.0943]. Muslimov, A. G., & Harding, A. K. 2004, ApJ, 606, 1143. Pétri, J. 2011, MNRAS, 412, 1870. Romani, R. W. 1996, ApJ, 470, 469. Saito, T. 2010, Ph.D. Thesis, Ludwig-Maximilians-Universtät, München [arXiv:1105.3400]. Zanin, R., Mazin, D., Carmona, E., et al. 2011, in Proc. ICRC 2011 [arXiv:1110.2987].
dspace.entity.typePublication
relation.isAuthorOfPublication6bc87e5f-9b77-4982-b112-0d4f8aa128d0
relation.isAuthorOfPublication11e5fd8b-1a86-4f8d-85c6-135541232be4
relation.isAuthorOfPublication6a14529e-a65e-4709-9bc1-61f9429841c1
relation.isAuthorOfPublication9f2c0e34-0edd-497a-bbd0-fbd9d348e85c
relation.isAuthorOfPublication8b5d96d7-bd11-4ee4-87d0-258a1e077e26
relation.isAuthorOfPublication328f9716-2012-44f9-aacc-ef8d48782a77
relation.isAuthorOfPublication60928160-a862-4814-a08f-4d80c6a1cdab
relation.isAuthorOfPublication.latestForDiscovery6bc87e5f-9b77-4982-b112-0d4f8aa128d0

Download

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
MirandaJM06abierto.pdf
Size:
495.45 KB
Format:
Adobe Portable Document Format
downoload Download

Collections

Artículos