On the physical meaning of the 2.1 keV absorption feature in 4U 1538-52
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Título: | On the physical meaning of the 2.1 keV absorption feature in 4U 1538-52 |
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Autor/es: | Rodes Roca, José Joaquín | Torrejon, Jose M. | Martínez Núñez, Silvia | Bernabeu, Guillermo |
Grupo/s de investigación o GITE: | Astronomía y Astrofísica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías |
Palabras clave: | X-ray binaries | 4U 1538-52 | Absorption line |
Área/s de conocimiento: | Física Aplicada | Astronomía y Astrofísica |
Fecha de publicación: | dic-2012 |
Cita bibliográfica: | Rodes Roca, José J., et al. “On the physical meaning of the 2.1 keV absorption feature in 4U 1538-52”. In: Proceedings of "An INTEGRAL view of the high-energy sky (the first 10 years)" - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch (INTEGRAL 2012). 15-19 October 2012. Bibliotheque Nationale de France, Paris, France. Published online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=176, id.31 |
Serie/Informe nº: | 2012int..workE..31R |
Resumen: | The improvement of the capabilities of nowadays X-ray observatories, like Chandra or XMM- Newton, offers the possibility to detect both absorption and emission lines and to study the nature of the matter surrounding the neutron star in X-ray binaries and the phenomena that produce these lines. The aim of this work is to discuss the different physical scenarios in order to explain the meaning of the significant absorption feature present in the X-ray spectrum of 4U 1538−52. Using the last available calibrations, we discard the possibility that this feature is due to calibration, gain effects or be produced by the X-ray background or a dust region. Giving the energy resolution of the XMM-Newton telescope we could not establish if the line is formed in the atmosphere of the neutron star or by the dispersion of the stellar wind of the optical counterpart. |
Patrocinador/es: | This work was supported by the MICINN project number AYA2010-15431. |
URI: | http://hdl.handle.net/10045/109368 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/conferenceObject |
Derechos: | © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence |
Revisión científica: | no |
Versión del editor: | https://pos.sissa.it/176/031/pdf | http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=176 |
Aparece en las colecciones: | INV - Astronomía y Astrofísica - Comunicaciones a Congresos, Conferencias, etc. |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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INTEGRAL 2012_031.pdf | Proceedings 9th INTEGRAL workshop | 541,57 kB | Adobe PDF | Abrir Vista previa |
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