dc.contributor.author | Jenkins, J.S. | |
dc.contributor.author | Jones, H.R.A. | |
dc.contributor.author | Gozdziewski, K. | |
dc.contributor.author | Migaszewski, C. | |
dc.contributor.author | Barnes, J.R. | |
dc.contributor.author | Jones, M.I. | |
dc.contributor.author | Rojo, P. | |
dc.contributor.author | Pinfield, D.J. | |
dc.contributor.author | Day-Jones, A.C. | |
dc.contributor.author | Hoyer, S. | |
dc.date.accessioned | 2011-03-08T16:05:14Z | |
dc.date.available | 2011-03-08T16:05:14Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Jenkins , J S , Jones , H R A , Gozdziewski , K , Migaszewski , C , Barnes , J R , Jones , M I , Rojo , P , Pinfield , D J , Day-Jones , A C & Hoyer , S 2009 , ' First results from the Calan–Hertfordshire Extrasolar Planet Search : exoplanets and the discovery of an eccentric brown dwarf in the desert ' , Monthly Notices of the Royal Astronomical Society , vol. 398 , no. 2 , pp. 911-917 . https://doi.org/10.1111/j.1365-2966.2009.15097.x | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | dspace: 2299/5457 | |
dc.identifier.uri | http://hdl.handle.net/2299/5457 | |
dc.description | The original article can be found at: http://www3.interscience.wiley.com Copyright Royal Astronomical Society | |
dc.description.abstract | We report the discovery of a brown dwarf on an eccentric orbit and with a semimajor axis that places it in the brown dwarf desert region around the star HD 191760. The star has a spectral type of G3IV/V and a metallicity ([Fe/H]) of 0.29 dex. HD 191760 adds to the small number of metal-rich stars with brown dwarf companions. The brown dwarf (HD 191760b ) is found to have an orbital period of 505.57 ± 0.40 d and semimajor axis of 1.35 ± 0.01 au , placing it firmly in the brown dwarf desert. The eccentricity of HD 191760b is found to be 0.63 ± 0.01 , meaning it reaches as close as 0.5 au from the host star. Dynamical simulations indicate that no inner planets could reside at separations beyond ∼0.17 au due to the disastrous gravity imposed by HD 191760b . In addition to these first results, we also refine the orbits found for the exoplanets around the stars HD 48265, HD 143361 and HD 154672. All one-planet solutions are in agreement with those previously published by the Magellan Planet Search. | en |
dc.format.extent | 3532335 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | radial velocities | |
dc.title | First results from the Calan–Hertfordshire Extrasolar Planet Search : exoplanets and the discovery of an eccentric brown dwarf in the desert | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Science & Technology Research Institute | |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1111/j.1365-2966.2009.15097.x | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |