Phase-resolved spectroscopy of the low-mass X-ray binary V801 Ara
Monthly Notices of the Royal Astronomical Society, ISSN: 1365-2966, Vol: 478, Issue: 4, Page: 4894-4904
2018
- 1Citations
- 8Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
We present phase-resolved optical spectra of the low-mass X-ray binary system V801 Ara. The spectra, obtained in 2014 with Inamori Magellan Areal Camera and Spectrograph on the Magellan/Baade telescope at Las Campanas Observatory, cover the full binary orbit of 3.8 h. They contain strong emission features allowing us to map the emission of H α, H β, He II λ4686, and the Bowen blend at λ4640. The radial velocity curves of the Bowen blend shows significantly stronger modulation at the orbital period than H α as expected for the former originating on the secondary with the latter consistent with emission dominated by the disc. Our tomograms of H a and H β are the most detailed studies of these lines for V801 to date and they clearly detect the accretion disc. The H β emission extends to higher velocities than H α, suggesting emission from closer to the neutron star and differentiating temperature variance in the accretion disc for the first time. The centre of the accretion disc appears offset from the centre-of-mass of the neutron star as has been seen in several other X-ray binaries. This is often interpreted to imply disc eccentricity. Our tomograms do not show strong evidence for a hotspot at the point where the accretion stream hits the disc. This could imply a reduced accretion rate or could be due to the spot being drowned out by bright accretion flow around it. There is enhanced emission further along the disc, however, which implies gas stream interaction downstream of the hotspot.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85050795656&origin=inward; http://dx.doi.org/10.1093/mnras/sty1429; https://academic.oup.com/mnras/article/478/4/4894/5026627; http://academic.oup.com/mnras/article-pdf/478/4/4894/25100729/sty1429.pdf; https://dx.doi.org/10.1093/mnras/sty1429
Oxford University Press (OUP)
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know