Título
THE IDENTIFICATION OF THE X-RAY COUNTERPART TO PSR J2021+4026
Autor
Alberto Carramiñana Alonso
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
We report the probable identification of the X-ray counterpart to the γ -ray pulsar PSR J2021+4026 using imaging with the Chandra X-ray Observatory Advanced CCD Imaging Spectrometer and timing analysis with the Fermi satellite. Given the statistical and systematic errors, the positions determined by both satellites are coincident. The X-ray source position is R.A. 20 ͪ 21 ͫ 30ˢ.733, decl. + 40◦26’46“.04 (J2000) with an estimated uncertainty of 1“.3 combined statistical and systematic error. Moreover, both the X-ray to γ -ray and the X-ray to optical flux ratios are sensible assuming a neutron star origin for the X-ray flux. The X-ray source has no cataloged infrared-to-visible counterpart and, through new observations, we set upper limits to its optical emission of i’ > 23.0 mag and r’ > 25.2 mag. The source exhibits an X-ray spectrum with most likely both a power law and a thermal component. We also report on the X-ray and visible light properties of the 43 other sources detected in our Chandra observation.
Editor
The Astrophysical Journal
Fecha de publicación
10 de diciembre de 2011
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Weisskopf, Martin C., et al., (2011), THE IDENTIFICATION OF THE X-RAY COUNTERPART TO PSR J2021+4026, The Astrophysical Journal, Vol. 743(74):1-12.
Repositorio Orígen
Repositorio Institucional del INAOE
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