The Library
Optical identification of IGR J19140+0951
Tools
In't Zand, J. J. M., Jonker, P. G., Nelemans, G., Steeghs, D. and O'Brien, K. (2006) Optical identification of IGR J19140+0951. Astronomy and Astrophysics, Vol.448 (No.3). pp. 1101-1106. doi:10.1051/0004-6361:20053411 ISSN 0004-6361.
|
Text
WRAP_Steeghs_Optical_0505256.pdf - Accepted Version Download (497Kb) | Preview |
Official URL: http://dx.doi.org/10.1051/0004-6361:20053411
Abstract
IGR J19140+0951 was discovered by INTEGRAL in 2003 in the 4-100 keV band. Observations with INTEGRAL and RXTE provide a tentative identification as a high-mass X-ray binary (HMXB) with a neutron star as accretor. However, an optical counterpart was thus far not established, nor was the presence of a pulsar which is commonly observed in HMXBs. We observed IGR J19140+0951 with Chandra and find the source to be active at a similar flux as previous measurements. The lightcurve shows a marginally significant oscillation at 6.5 ks which requires confirmation. We determine a sub-arcsecond position from the Chandra data and identify the heavily reddened optical counterpart 2MASS 19140422+0952577 in the 2MASS catalog. Optical follow-up observations with the William Herschel Telescope at La Palma exhibit a continuum spectrum coming out of extinction above 7000 Å without strong absorption or emission features. V, I and band photometry point to an optical counterpart with an extinction of . The extinction is consistent with the interstellar value. None of the data reject the suspicion that IGR J19140+0951 is an HMXB with additional circumstellar obscuration around the accretor.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QB Astronomy | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | X-ray binaries | ||||
Journal or Publication Title: | Astronomy and Astrophysics | ||||
Publisher: | EDP Sciences | ||||
ISSN: | 0004-6361 | ||||
Official Date: | 2006 | ||||
Dates: |
|
||||
Volume: | Vol.448 | ||||
Number: | No.3 | ||||
Page Range: | pp. 1101-1106 | ||||
DOI: | 10.1051/0004-6361:20053411 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 22 December 2015 | ||||
Date of first compliant Open Access: | 22 December 2015 | ||||
Funder: | Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organisation for Scientific Research] (NWO), Smithsonian Astrophysical Observatory |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year