XTE J1906+090: a persistent low luminosity Be X-ray binary
XTE J1906+090: a persistent low luminosity Be X-ray binary
We present new results from INTEGRAL and Swift observations of the hitherto poorly studied and unidentified X-ray source XTE J1906+090. A bright hard X-ray outburst (luminosity of ∼1036 erg s−1 above 20 keV) has been discovered with INTEGRAL observations in 2010, this being the fourth outburst ever detected from the source. Such events are sporadic, the source duty cycle is in the range (0.8–1.6) per cent as inferred from extensive INTEGRAL and Swift monitoring in a similar hard X-ray band. Using five archival unpublished Swift/X-Ray Telescope (XRT) observations, we found that XTE J1906+090 has been consistently detected at a persistent low X-ray luminosity value of ∼1034 erg s−1, with limited variability (a factor as high as 4). Based on our findings, we propose that XTE J1906+090 belongs to the small and rare group of persistent low-luminosity Be X-ray binaries.
astro-ph.HE, X-rays: general, X-rays: binaries, stars: neutron
1192-1198
Sguera, V.
aa109b47-f142-4235-8747-1d5215cb8eb4
Sidoli, L.
8fb3495e-d8f0-4d0c-a806-cbe6f44ca7e0
Bird, A. J.
045ee141-4720-46fd-a412-5aa848a91b32
Palombara, N. La
86a61444-e12d-487d-9dd7-9a3ade4e2ee7
1 July 2023
Sguera, V.
aa109b47-f142-4235-8747-1d5215cb8eb4
Sidoli, L.
8fb3495e-d8f0-4d0c-a806-cbe6f44ca7e0
Bird, A. J.
045ee141-4720-46fd-a412-5aa848a91b32
Palombara, N. La
86a61444-e12d-487d-9dd7-9a3ade4e2ee7
Sguera, V., Sidoli, L., Bird, A. J. and Palombara, N. La
(2023)
XTE J1906+090: a persistent low luminosity Be X-ray binary.
Monthly Notices of the Royal Astronomical Society, 523 (1), .
(doi:10.1093/mnras/stad1494).
Abstract
We present new results from INTEGRAL and Swift observations of the hitherto poorly studied and unidentified X-ray source XTE J1906+090. A bright hard X-ray outburst (luminosity of ∼1036 erg s−1 above 20 keV) has been discovered with INTEGRAL observations in 2010, this being the fourth outburst ever detected from the source. Such events are sporadic, the source duty cycle is in the range (0.8–1.6) per cent as inferred from extensive INTEGRAL and Swift monitoring in a similar hard X-ray band. Using five archival unpublished Swift/X-Ray Telescope (XRT) observations, we found that XTE J1906+090 has been consistently detected at a persistent low X-ray luminosity value of ∼1034 erg s−1, with limited variability (a factor as high as 4). Based on our findings, we propose that XTE J1906+090 belongs to the small and rare group of persistent low-luminosity Be X-ray binaries.
Text
2305.06689v1
- Author's Original
Available under License Other.
Text
stad1494
- Version of Record
Available under License Other.
More information
Accepted/In Press date: 8 May 2023
e-pub ahead of print date: 17 May 2023
Published date: 1 July 2023
Additional Information:
Funding Information:
We warmly thank the referee for the prompt and constructive report. This research has made use of data and software provided by the High Energy Astrophysics Science Archive Research Center (HEASARC), which is a service of the Astrophysics Science Division at NASA/GSFC. This work has made use of the Swift/BAT transient monitor results provided by the Swift/BAT team: http://swift.gsfc.nasa.gov/docs/swift/res ults/transients/. This work has made use of data from the ESA mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).
Publisher Copyright:
© 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
Keywords:
astro-ph.HE, X-rays: general, X-rays: binaries, stars: neutron
Identifiers
Local EPrints ID: 478413
URI: http://eprints.soton.ac.uk/id/eprint/478413
ISSN: 1365-2966
PURE UUID: 02d67ad2-b247-42bf-9531-7b4ecdca8404
Catalogue record
Date deposited: 30 Jun 2023 16:36
Last modified: 18 Mar 2024 02:39
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Contributors
Author:
V. Sguera
Author:
L. Sidoli
Author:
N. La Palombara
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