The superluminal source GRS 1915+105: A high-mass X-ray binary?

We obtained K-band (2.0-2.5 μm) infrared spectra of the visually obscured superluminal source GRS 1915+105 at three different epochs of 1995, at times when it was detected as a hard X-ray source. The three spectra exhibit H I Brγ (2.167 μm) and He I (2.058 μm) emission lines. The spectral morphology...

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Autores principales: Mirabel, I.F., Bandyopadhyay, R., Charles, P.A., Shahbaz, T., Rodríguez, L.F.
Formato: JOUR
Materias:
Infrared: stars
Stars: emission-line, Be
X-rays: stars
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0004637X_v477_n1PARTII_pL45_Mirabel
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_0004637X_v477_n1PARTII_pL45_Mirabel2023-10-03T14:01:41Z The superluminal source GRS 1915+105: A high-mass X-ray binary? Mirabel, I.F. Bandyopadhyay, R. Charles, P.A. Shahbaz, T. Rodríguez, L.F. Infrared: stars Stars: emission-line, Be X-rays: stars We obtained K-band (2.0-2.5 μm) infrared spectra of the visually obscured superluminal source GRS 1915+105 at three different epochs of 1995, at times when it was detected as a hard X-ray source. The three spectra exhibit H I Brγ (2.167 μm) and He I (2.058 μm) emission lines. The spectral morphology, absolute magnitude, and time variability of the infrared counterpart are consistent with the class of high-mass X-ray binaries that contain late Oe and early Be stars as mass donors. In GRS 1915+105 we have not detected the Doppler-shifted emission lines observed in the classic stellar source of relativistic jets, SS 433. We discuss why it may be more difficult in GRS 1915+105 than in SS 433 to detect emission lines from the jets. © 1997. The American Astronomical Society. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004637X_v477_n1PARTII_pL45_Mirabel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Infrared: stars
Stars: emission-line, Be
X-rays: stars
spellingShingle Infrared: stars
Stars: emission-line, Be
X-rays: stars
Mirabel, I.F.
Bandyopadhyay, R.
Charles, P.A.
Shahbaz, T.
Rodríguez, L.F.
The superluminal source GRS 1915+105: A high-mass X-ray binary?
topic_facet Infrared: stars
Stars: emission-line, Be
X-rays: stars
description We obtained K-band (2.0-2.5 μm) infrared spectra of the visually obscured superluminal source GRS 1915+105 at three different epochs of 1995, at times when it was detected as a hard X-ray source. The three spectra exhibit H I Brγ (2.167 μm) and He I (2.058 μm) emission lines. The spectral morphology, absolute magnitude, and time variability of the infrared counterpart are consistent with the class of high-mass X-ray binaries that contain late Oe and early Be stars as mass donors. In GRS 1915+105 we have not detected the Doppler-shifted emission lines observed in the classic stellar source of relativistic jets, SS 433. We discuss why it may be more difficult in GRS 1915+105 than in SS 433 to detect emission lines from the jets. © 1997. The American Astronomical Society. All rights reserved.
format JOUR
author Mirabel, I.F.
Bandyopadhyay, R.
Charles, P.A.
Shahbaz, T.
Rodríguez, L.F.
author_facet Mirabel, I.F.
Bandyopadhyay, R.
Charles, P.A.
Shahbaz, T.
Rodríguez, L.F.
author_sort Mirabel, I.F.
title The superluminal source GRS 1915+105: A high-mass X-ray binary?
title_short The superluminal source GRS 1915+105: A high-mass X-ray binary?
title_full The superluminal source GRS 1915+105: A high-mass X-ray binary?
title_fullStr The superluminal source GRS 1915+105: A high-mass X-ray binary?
title_full_unstemmed The superluminal source GRS 1915+105: A high-mass X-ray binary?
title_sort superluminal source grs 1915+105: a high-mass x-ray binary?
url http://hdl.handle.net/20.500.12110/paper_0004637X_v477_n1PARTII_pL45_Mirabel
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