dc.contributor.author | Verbeek, K. | |
dc.contributor.author | Groot, Paul J. | |
dc.contributor.author | Scaringi, Simone | |
dc.contributor.author | Casares, Jorge | |
dc.contributor.author | Corral-Santana, Jesus M. | |
dc.contributor.author | Deacon, Niall | |
dc.contributor.author | Drew, J.E. | |
dc.contributor.author | Gänsicke, B.T. | |
dc.contributor.author | Gonzalez-Solares, E. | |
dc.contributor.author | Greimel, R. | |
dc.contributor.author | Heber, U. | |
dc.contributor.author | Napiwotzki, R. | |
dc.contributor.author | Ostensen, R.H. | |
dc.contributor.author | Steeghs, D. | |
dc.contributor.author | Wright, N.J. | |
dc.contributor.author | Zijlstra, A. | |
dc.date.accessioned | 2014-03-10T12:28:59Z | |
dc.date.available | 2014-03-10T12:28:59Z | |
dc.date.issued | 2014-02 | |
dc.identifier.citation | Verbeek , K , Groot , P J , Scaringi , S , Casares , J , Corral-Santana , J M , Deacon , N , Drew , J E , Gänsicke , B T , Gonzalez-Solares , E , Greimel , R , Heber , U , Napiwotzki , R , Ostensen , R H , Steeghs , D , Wright , N J & Zijlstra , A 2014 , ' Ultraviolet-excess sources with a red/infrared counterpart : Low-mass companions, debris discs and QSO selection ' , Monthly Notices of the Royal Astronomical Society , vol. 438 , no. 1 , pp. 2-13 . https://doi.org/10.1093/mnras/stt1492 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | http://hdl.handle.net/2299/13055 | |
dc.description.abstract | We present the result of the cross-matching between ultraviolet (UV)-excess sources selected from the UV-Excess Survey of the Northern Galactic Plane (UVEX) and several infrared (IR) surveys (2MASS, UKIDSS and WISE). From the position in the (J - H) versus (H - K) colour-colour diagram, we select UV-excess candidate white dwarfs with an M-dwarf type companion, candidates that might have a lower mass, brown-dwarf type companion and candidates showing an IR-excess only in the K band, which might be due to a debris disc. Grids of reddened DA+dM and sdO+MS/sdB+MS model spectra are fitted to the U, g, r, i, z, J, H, K photometry in order to determine spectral types and estimate temperatures and reddening. From a sample of 964 hot candidate white dwarfs with (g - r) <0.2, the spectral energy distribution fitting shows that ~2-4 per cent of the white dwarfs have an M-dwarf companion, ∼2 per cent have a lower-mass companion, and no clear candidates for having a debris disc are found. Additionally, from WISE six UV-excess sources are selected as candidate quasi-stellar objects (QSOs). Two UV-excess sources have a WISE IR-excess showing up only in the mid-IR W3 band of WISE, making them candidate luminous infrared galaxies (LIRGs) or Sbc starburst galaxies. | en |
dc.format.extent | 12 | |
dc.format.extent | 1083552 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Physics and Astronomy(all) | |
dc.title | Ultraviolet-excess sources with a red/infrared counterpart : Low-mass companions, debris discs and QSO selection | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.contributor.institution | Science & Technology Research Institute | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stt1492 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |