Título

THE IDENTIFICATION OF THE X-RAY COUNTERPART TO PSR J2021+4026

Autor

Alberto Carramiñana Alonso

Nivel de Acceso

Acceso Abierto

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

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

Descargas

251

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