Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst
Context: While the sources of X-ray and radio emission in the different states of low-mass X-ray binaries are relatively well understood, the origin of the near-infrared (NIR) and optical emission is more often debated. It is likely that the NIR/optical flux originates from an amalgam of different e...
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| Format: | Journal Article |
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EDP Sciences
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/37502 |
| _version_ | 1848755066461224960 |
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| author | Curran, Peter Chaty, S. Heras, J. |
| author_facet | Curran, Peter Chaty, S. Heras, J. |
| author_sort | Curran, Peter |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Context: While the sources of X-ray and radio emission in the different states of low-mass X-ray binaries are relatively well understood, the origin of the near-infrared (NIR) and optical emission is more often debated. It is likely that the NIR/optical flux originates from an amalgam of different emission regions, because it occurs at the intersecting wavelengths of multiple processes. Aims: We aim to identify the NIR/optical emission region(s) of one such low-mass X-ray binary and black hole candidate, XTE J1650−500, via photometric, timing, and spectral analyses.Methods: We present unique NIR/optical images and spectra, obtained with the ESO-New Technology Telescope, during the peak of the 2001 outburst of XTE J1650−500. Results: The data suggest that the NIR/optical flux is due to a combination of emission mechanisms including a significant contribution from X-ray reprocessing and, at early times in the hard state, a relativistic jet that is NIR/radio dim compared to similar sources. Conclusions: The jet of XTE J1650−500 is relatively weak compared to that of other black hole low-mass X-ray binaries, possibly because we observe as it is being “turned off” or quenched at the state transition. While there are several outliers to the radio-X-ray correlation of the hard state of low-mass X-ray binaries, XTE J1650−500 is the first example of an outlier to the NIR/optical-X-ray correlation. |
| first_indexed | 2025-11-14T08:50:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-37502 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:50:24Z |
| publishDate | 2012 |
| publisher | EDP Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-375022017-09-13T13:42:27Z Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst Curran, Peter Chaty, S. Heras, J. accretion accretion disks/ISM: jets and outflows/infrared: stars/X-rays: individuals: XTE J1650/500/X-rays: binaries Context: While the sources of X-ray and radio emission in the different states of low-mass X-ray binaries are relatively well understood, the origin of the near-infrared (NIR) and optical emission is more often debated. It is likely that the NIR/optical flux originates from an amalgam of different emission regions, because it occurs at the intersecting wavelengths of multiple processes. Aims: We aim to identify the NIR/optical emission region(s) of one such low-mass X-ray binary and black hole candidate, XTE J1650−500, via photometric, timing, and spectral analyses.Methods: We present unique NIR/optical images and spectra, obtained with the ESO-New Technology Telescope, during the peak of the 2001 outburst of XTE J1650−500. Results: The data suggest that the NIR/optical flux is due to a combination of emission mechanisms including a significant contribution from X-ray reprocessing and, at early times in the hard state, a relativistic jet that is NIR/radio dim compared to similar sources. Conclusions: The jet of XTE J1650−500 is relatively weak compared to that of other black hole low-mass X-ray binaries, possibly because we observe as it is being “turned off” or quenched at the state transition. While there are several outliers to the radio-X-ray correlation of the hard state of low-mass X-ray binaries, XTE J1650−500 is the first example of an outlier to the NIR/optical-X-ray correlation. 2012 Journal Article http://hdl.handle.net/20.500.11937/37502 10.1051/0004-6361/201219228 EDP Sciences fulltext |
| spellingShingle | accretion accretion disks/ISM: jets and outflows/infrared: stars/X-rays: individuals: XTE J1650/500/X-rays: binaries Curran, Peter Chaty, S. Heras, J. Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst |
| title | Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst |
| title_full | Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst |
| title_fullStr | Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst |
| title_full_unstemmed | Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst |
| title_short | Disentangling the NIR/optical emission of the black hole XTE J1650-500 during outburst |
| title_sort | disentangling the nir/optical emission of the black hole xte j1650-500 during outburst |
| topic | accretion accretion disks/ISM: jets and outflows/infrared: stars/X-rays: individuals: XTE J1650/500/X-rays: binaries |
| url | http://hdl.handle.net/20.500.11937/37502 |