dc.contributor.author | Cook, Neil | |
dc.contributor.author | Pinfield, D.J. | |
dc.contributor.author | Marocco, F. | |
dc.contributor.author | Burningham, B. | |
dc.contributor.author | Jones, H.R.A. | |
dc.contributor.author | Frith, James | |
dc.contributor.author | Zhong, J. | |
dc.contributor.author | Luo, A. | |
dc.contributor.author | Qi, Z. | |
dc.contributor.author | Lucas, P.W. | |
dc.contributor.author | Gromadzki, Mariusz | |
dc.contributor.author | Day-Jones, Avril | |
dc.contributor.author | Kurtev, Radostin | |
dc.contributor.author | Guo, Y. | |
dc.contributor.author | Wang, Y. | |
dc.contributor.author | Bai, Y. | |
dc.contributor.author | Yi, Z. | |
dc.contributor.author | Smart, R. | |
dc.date.accessioned | 2016-04-25T13:37:29Z | |
dc.date.available | 2016-04-25T13:37:29Z | |
dc.date.issued | 2016-04-01 | |
dc.identifier.citation | Cook , N , Pinfield , D J , Marocco , F , Burningham , B , Jones , H R A , Frith , J , Zhong , J , Luo , A , Qi , Z , Lucas , P W , Gromadzki , M , Day-Jones , A , Kurtev , R , Guo , Y , Wang , Y , Bai , Y , Yi , Z & Smart , R 2016 , ' A method for selecting M dwarfs with an increased likelihood of unresolved ultracool companionship ' , Monthly Notices of the Royal Astronomical Society , vol. 457 , no. 2 , pp. 2192-2208 . https://doi.org/10.1093/mnras/stw061 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ORCID: /0000-0002-8872-4462/work/62748896 | |
dc.identifier.other | ORCID: /0000-0003-4600-5627/work/64327342 | |
dc.identifier.uri | http://hdl.handle.net/2299/17133 | |
dc.description | This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record [N. J, Cook, et al, 'A method for selecting M dwarfs with an increased likelihood of unresolved ultracool companionship', MNRAS, Vol. 457(2): 2192-2208, February 2016] is available online at: https://doi.org/10.1093/mnras/stw061. Published by Oxford University Press on behalf of the Royal Astronomical Society. | |
dc.description.abstract | Locating ultracool companions to M dwarfs is important for constraining low-mass formation models, the measurement of substellar dynamical masses and radii, and for testing ultracool evolutionary models. We present an optimized method for identifying M dwarfs which may have unresolved ultracool companions. We construct a catalogue of 440 694 M dwarf candidates, from Wide-Field Infrared Survey Explorer, Two Micron All-Sky Survey and Sloan Digital Sky Survey, based on optical- and near-infrared colours and reduced proper motion. With strict reddening, photometric and quality constraints we isolate a subsample of 36 898 M dwarfs and search for possible mid-infrared M dwarf + ultracool dwarf candidates by comparing M dwarfs which have similar optical/near-infrared colours (chosen for their sensitivity to effective temperature and metallicity). We present 1082 M dwarf + ultracool dwarf candidates for follow-up. Using simulated ultracool dwarf companions to M dwarfs, we estimate that the occurrence of unresolved ultracool companions amongst our M dwarf + ultracool dwarf candidates should be at least four times the average for our full M dwarf catalogue. We discuss possible contamination and bias and predict yields of candidates based on our simulations. | en |
dc.format.extent | 17 | |
dc.format.extent | 1448994 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | A method for selecting M dwarfs with an increased likelihood of unresolved ultracool companionship | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
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.contributor.institution | Centre for Future Societies Research | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stw061 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |