dc.contributor.author | Lucas, P. W. | |
dc.contributor.author | Smith, L. C. | |
dc.contributor.author | Pena, C. Contreras | |
dc.contributor.author | Froebrich, Dirk D. | |
dc.contributor.author | Drew, Janet E. | |
dc.contributor.author | Kumar, M. S. N. | |
dc.contributor.author | Borissova, J. | |
dc.contributor.author | Minniti, D. | |
dc.contributor.author | Kurtev, R. | |
dc.contributor.author | Monguio, M. | |
dc.date.accessioned | 2017-12-12T17:05:31Z | |
dc.date.available | 2017-12-12T17:05:31Z | |
dc.date.issued | 2017-12-11 | |
dc.identifier.citation | Lucas , P W , Smith , L C , Pena , C C , Froebrich , D D , Drew , J E , Kumar , M S N , Borissova , J , Minniti , D , Kurtev , R & Monguio , M 2017 , ' Extreme infrared variables from UKIDSS - II. an end-of-survey catalogue of eruptive YSOs and unusual stars ' , Monthly Notices of the Royal Astronomical Society , vol. 472 , no. 3 , stx2058 , pp. 2990-3020 . https://doi.org/10.1093/mnras/stx2058 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/1708.02680v1 | |
dc.identifier.other | ORCID: /0000-0002-8872-4462/work/62748872 | |
dc.identifier.uri | http://hdl.handle.net/2299/19598 | |
dc.description | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2017 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. The data table for the 618 variable stars (Table 1) is available at http://star.herts.ac.uk/~pwl/Lucas/papers/ in FITS and ascii format | |
dc.description.abstract | We present a catalogue of 618 high-amplitude infrared variable stars (1 < ΔK < 5 mag) detected by the two widely separated epochs of 2.2 μm data in the UKIDSS Galactic plane survey, from searches covering ∼1470 deg2. Most were discovered by a search of all fields at 30 < l < 230°. Sources include new dusty Mira variables, three new cataclysmic variable candidates, a blazar and a peculiar source that may be an interacting binary system. However, ∼60 per cent are young stellar obbjects (YSOs), based on spatial association with star-forming regions at distances ranging from 300 pc to over 10 kpc. This confirms our initial result in Contreras Peña et al. (Paper I) that YSOs dominate the high-amplitude infrared variable sky in the Galactic disc. It is also supported by recently published VISTA Variables in the Via Lactea (VVV) results at 295 < l < 350°. The spectral energy distributions of the YSOs indicate class I or flat-spectrum systems in most cases, as in the VVV sample. A large number of variable YSOs are associated with the Cygnus X complex and other groups are associated with the North America/Pelican nebula, the Gemini OB1 molecular cloud, the Rosette complex, the Cone nebula, the W51 star-forming region and the S86 and S236 H II regions. Most of the YSO variability is likely due to variable/episodic accretion on time-scales of years, albeit usually less extreme than classical FUors and EXors. Luminosities at the 2010 Wide-field Infrared Survey Explorer epoch range from ∼0.1 to 103 L⊙ but only rarely exceed 102.5 L⊙. | en |
dc.format.extent | 31 | |
dc.format.extent | 6651659 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | astro-ph.SR | |
dc.title | Extreme infrared variables from UKIDSS - II. an end-of-survey catalogue of eruptive YSOs and unusual stars | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stx2058 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |