Addison, B. C. and Tinney, C. G. and Wright, D. J. and Bayliss, D. (2014) A spin-orbit alignment for the hot Jupiter HATS-3b. The Astrophysical Journal, 792 (2). pp. 1-10. ISSN 1538-3881
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Abstract
We have measured the alignment between the orbit of HATS-3b (a recently discovered, slightly inflated Hot Jupiter) and the spin axis of its host star. Data were obtained using the CYCLOPS2 optical-fiber bundle and its simultaneous calibration system feeding the UCLES spectrograph on the Anglo-Australian Telescope. The sky-projected spin-orbit angle of λ = 3° ± 25° was determined from spectroscopic measurements of the Rossiter-McLaughlin effect. This is the first exoplanet discovered through the HATSouth transit survey to have its spin-orbit angle measured. Our results indicate that the orbital plane of HATS-3b is consistent with being aligned to the spin axis of its host star. The low obliquity of the HATS-3 system, which has a relatively hot mid F-type host star, agrees with the general trend observed for Hot Jupiter host stars with effective temperatures >6250 K to have randomly distributed spin-orbit angles. Based on observations obtained at the Anglo-Australian Telescope, Siding Spring, Australia.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Published version deposited in accordance with the copyright policy of the publisher. |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019) |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019) |
| Date Deposited: | 13 Aug 2019 22:41 |
| Last Modified: | 13 Aug 2019 23:43 |
| Uncontrolled Keywords: | planets and satellites, dynamical evolution and stability, stars, individual, HATS-3, techniques radial velocities |
| Fields of Research (2008): | 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems |
| Fields of Research (2020): | 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems |
| Identification Number or DOI: | https://doi.org/10.1088/0004-637X/792/2/112 |
| URI: | http://eprints.usq.edu.au/id/eprint/36366 |
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