The Einstein@Home Gamma-ray Pulsar Survey. II. Source Selection, Spectral Analysis, and Multiwavelength Follow-up

Autor: A. Cuéllar, S. Sanpa-arsa, H. Fehrmann, B. Machenschalk, D. Salvetti, Heinz-Bernd Eggenstein, Holger J. Pletsch, Julia Deneva, Elizabeth C. Ferrara, Bhaswati Bhattacharyya, Ismaël Cognard, Michael Kramer, Fernando Camilo, Scott M. Ransom, Paul S. Ray, C. Aulbert, C. J. Clark, Jingwen Wu, Christian Beer, Matthew Kerr, L. Guillemot, K. S. Wood, O. Bock, Pablo Torne, T. J. Johnson, D. J. Champion
Přispěvatelé: Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS )
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Einstein@Home
[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
gamma rays: stars
01 natural sciences
law.invention
Telescope
individual (PSR J0002+6216
PSR J0631+0646
PSR J1624-4041
PSR J2017+3625) [pulsars]
Pulsar
law
0103 physical sciences
Spectral analysis
010303 astronomy & astrophysics
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]
010308 nuclear & particles physics
Spectral properties
Gamma ray
Astrophysics::Instrumentation and Methods for Astrophysics
Astronomy and Astrophysics
stars [gamma rays]
pulsars: individual
Space and Planetary Science
Astrophysics - High Energy Astrophysical Phenomena
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Fermi Gamma-ray Space Telescope
Zdroj: Astrophys.J.
Astrophys.J., 2018, 854 (2), pp.99. ⟨10.3847/1538-4357/aaa411⟩
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2018, 854 (2), pp.99. ⟨10.3847/1538-4357/aaa411⟩
Wu, J, Clark, C J, Pletsch, H J, Guillemot, L, Johnson, T J, Torne, P, Champion, D J, Deneva, J, Ray, P S, Salvetti, D, Kramer, M, Aulbert, C, Beer, C, Bhattacharyya, B, Bock, O, Camilo, F, Cognard, I, Cuéllar, A, Eggenstein, H B, Fehrmann, H, Ferrara, E C, Kerr, M, Machenschalk, B, Ransom, S M, Sanpa-Arsa, S & Wood, K 2018, ' The Einstein@Home Gamma-ray Pulsar Survey. II. Source Selection, Spectral Analysis, and Multiwavelength Follow-up ', Astrophysical Journal, vol. 854, no. 2, 99 . https://doi.org/10.3847/1538-4357/aaa411
Astrophys.J., 2018, 854 (2), pp.99. 〈10.3847/1538-4357/aaa411〉
ISSN: 0004-637X
1538-4357
DOI: 10.3847/1538-4357/aaa411⟩
Popis: We report on the analysis of 13 gamma-ray pulsars discovered in the Einstein@Home blind search survey using Fermi Large Area Telescope (LAT) Pass 8 data. The 13 new gamma-ray pulsars were discovered by searching 118 unassociated LAT sources from the third LAT source catalog (3FGL), selected using the Gaussian Mixture Model (GMM) machine learning algorithm on the basis of their gamma-ray emission properties being suggestive of pulsar magnetospheric emission. The new gamma-ray pulsars have pulse profiles and spectral properties similar to those of previously-detected young gamma-ray pulsars. Follow-up radio observations have revealed faint radio pulsations from two of the newly-discovered pulsars, and enabled us to derive upper limits on the radio emission from the others, demonstrating that they are likely radio-quiet gamma-ray pulsars. We also present results from modeling the gamma-ray pulse profiles and radio profiles, if available, using different geometric emission models of pulsars. The high discovery rate of this survey, despite the increasing difficulty of blind pulsar searches in gamma rays, suggests that new systematic surveys such as presented in this article should be continued when new LAT source catalogs become available.
Comment: Accepted for publication in ApJ
Databáze: OpenAIRE
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