Astrophysical Journal
Astrophysical Journal
5 years ago

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

O. Bock, B. Bhattacharyya, A. Cuéllar, L. Guillemot, H. B. Eggenstein, C. J. Clark, T. J. Johnson, I. Cognard, C. Beer, J. Deneva, K. Wood, S. M. Ransom, C. Aulbert, H. J. Pletsch, B. Machenschalk, F. Camilo, P. S. Ray, J. Wu, M. Kerr, D. Salvetti, E. C. Ferrara, S. Sanpa-Arsa, H. Fehrmann, D. J. Champion, P. Torne, M. Kramer
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 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...

Publisher URL: http://iopscience.iop.org/0004-637X/854/2/99

DOI: 10.3847/1538-4357/aaa411

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