IGR J19294+1816: a new Be-X-ray binary revealed through infrared spectroscopy
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Título: | IGR J19294+1816: a new Be-X-ray binary revealed through infrared spectroscopy |
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Autor/es: | Rodes Roca, José Joaquín | Bernabeu, Guillermo | Magazzù, Antonio | Torrejon, Jose M. | Solano, Enrique |
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: | Stars: emission-line | Be | Infrared: stars | X-rays: binaries |
Área/s de conocimiento: | Física Aplicada |
Fecha de publicación: | 11-may-2018 |
Editor: | Oxford University Press |
Cita bibliográfica: | Monthly Notices of the Royal Astronomical Society. 2018, 476(2): 2110-2116. doi:10.1093/mnras/sty333 |
Resumen: | The aim of this work is to characterize the counterpart to the INTErnational Gamma-Ray Astrophysics Laboratory high-mass X-ray binary candidate IGR J19294+1816 so as to establish its true nature. We obtained H-band spectra of the selected counterpart acquired with the Near Infrared Camera and Spectrograph instrument mounted on the Telescopio Nazionale Galileo 3.5-m telescope which represents the first infrared spectrum ever taken of this source. We complement the spectral analysis with infrared photometry from UKIDSS, 2MASS, WISE, and NEOWISE data bases. We classify the mass donor as a Be star. Subsequently, we compute its distance by properly taking into account the contamination produced by the circumstellar envelope. The findings indicate that IGR J19294+1816 is a transient source with a B1Ve donor at a distance of d = 11 ± 1 kpc, and luminosities of the order of 1036–37 erg s−1, displaying the typical behaviour of a Be-X-ray binary. |
Patrocinador/es: | Part of this work was supported by the Spanish Ministerio de Economía y Competitividad project number ESP2014-53672-C3-3-P. JJRR acknowledges financial support from the Generalitat Valenciana and University of Alicante projects GV/2014/088 and GRE12-35, respectively. AM acknowledges the support by the grant by the Vicerectorat d’Investigació, Desenvolupament i Innovació de la Universitat d’Alacant under visiting researcher programme INV15-10. |
URI: | http://hdl.handle.net/10045/74455 |
ISSN: | 0035-8711 (Print) | 1365-2966 (Online) |
DOI: | 10.1093/mnras/sty333 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1093/mnras/sty333 |
Aparece en las colecciones: | INV - Astronomía y Astrofísica - Artículos de Revistas |
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2018_Rodes-Roca_MNRAS.pdf | 1,24 MB | Adobe PDF | Abrir Vista previa | |
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