The infrared counterpart of the X-ray burster KS 1731-260

We present JK′ infrared images of the X-ray transient KS 1731-260, obtained in 1997 and in 1998 with IRAC2b at the ESO/MPI 2.2-m telescope at La Silla. Using as a reference the recent Chandra position, we confirm the identification of the X-ray source with the previously proposed counterpart (Wijnan...

Descripción completa

Detalles Bibliográficos
Publicado: 2002
Materias:
KS 1731-260
X-ray binaries
Image analysis
Infrared imaging
Infrared radiation
Optical telescopes
Photometry
X rays
X-ray bursters
Astrophysics
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v389_n1_pL11_Mignani
http://hdl.handle.net/20.500.12110/paper_00046361_v389_n1_pL11_Mignani
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00046361_v389_n1_pL11_Mignani
record_format dspace
spelling paper:paper_00046361_v389_n1_pL11_Mignani2023-06-08T14:27:28Z The infrared counterpart of the X-ray burster KS 1731-260 KS 1731-260 X-ray binaries Image analysis Infrared imaging Infrared radiation Optical telescopes Photometry X rays X-ray bursters Astrophysics We present JK′ infrared images of the X-ray transient KS 1731-260, obtained in 1997 and in 1998 with IRAC2b at the ESO/MPI 2.2-m telescope at La Silla. Using as a reference the recent Chandra position, we confirm the identification of the X-ray source with the previously proposed counterpart (Wijnands et al. 2001b), for which we measure J = 17.32 ± 0.2 and K′ = 16.36 ± 0.18. The source was entering a low X-ray state at the epoch of our observations, and the accretion disk was still dominating the infrared flux. Indeed, when compared with the only published magnitudes in the J-band (Orosz et al. 2001), obtained with the source in quiescence, our photometry confirms the fading of the counterpart during the decay of the RXTE/ASM lightcurve. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v389_n1_pL11_Mignani http://hdl.handle.net/20.500.12110/paper_00046361_v389_n1_pL11_Mignani
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic KS 1731-260
X-ray binaries
Image analysis
Infrared imaging
Infrared radiation
Optical telescopes
Photometry
X rays
X-ray bursters
Astrophysics
spellingShingle KS 1731-260
X-ray binaries
Image analysis
Infrared imaging
Infrared radiation
Optical telescopes
Photometry
X rays
X-ray bursters
Astrophysics
The infrared counterpart of the X-ray burster KS 1731-260
topic_facet KS 1731-260
X-ray binaries
Image analysis
Infrared imaging
Infrared radiation
Optical telescopes
Photometry
X rays
X-ray bursters
Astrophysics
description We present JK′ infrared images of the X-ray transient KS 1731-260, obtained in 1997 and in 1998 with IRAC2b at the ESO/MPI 2.2-m telescope at La Silla. Using as a reference the recent Chandra position, we confirm the identification of the X-ray source with the previously proposed counterpart (Wijnands et al. 2001b), for which we measure J = 17.32 ± 0.2 and K′ = 16.36 ± 0.18. The source was entering a low X-ray state at the epoch of our observations, and the accretion disk was still dominating the infrared flux. Indeed, when compared with the only published magnitudes in the J-band (Orosz et al. 2001), obtained with the source in quiescence, our photometry confirms the fading of the counterpart during the decay of the RXTE/ASM lightcurve.
title The infrared counterpart of the X-ray burster KS 1731-260
title_short The infrared counterpart of the X-ray burster KS 1731-260
title_full The infrared counterpart of the X-ray burster KS 1731-260
title_fullStr The infrared counterpart of the X-ray burster KS 1731-260
title_full_unstemmed The infrared counterpart of the X-ray burster KS 1731-260
title_sort infrared counterpart of the x-ray burster ks 1731-260
publishDate 2002
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v389_n1_pL11_Mignani
http://hdl.handle.net/20.500.12110/paper_00046361_v389_n1_pL11_Mignani
_version_ 1768543399028195328

Ejemplares similares