dc.contributor.author | Egea, E. González | |
dc.contributor.author | Koester, D. | |
dc.contributor.author | Rogers, L. K. | |
dc.contributor.author | Marocco, F. | |
dc.contributor.author | Cooper, W. J. | |
dc.contributor.author | Beamin, J. C. | |
dc.contributor.author | Burningham, B. | |
dc.contributor.author | Day-Jones, A. | |
dc.contributor.author | Forbrich, J. | |
dc.contributor.author | Pinfield, D. J. | |
dc.date.accessioned | 2021-01-20T11:00:04Z | |
dc.date.available | 2021-01-20T11:00:04Z | |
dc.date.issued | 2020-12-12 | |
dc.identifier.citation | Egea , E G , Koester , D , Rogers , L K , Marocco , F , Cooper , W J , Beamin , J C , Burningham , B , Day-Jones , A , Forbrich , J & Pinfield , D J 2020 , ' Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83 ' , Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/staa3836 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2012.05731v2 | |
dc.identifier.other | ORCID: /0000-0003-4600-5627/work/87353954 | |
dc.identifier.other | ORCID: /0000-0001-8694-4966/work/87354085 | |
dc.identifier.other | ORCID: /0000-0003-3501-8967/work/150595830 | |
dc.identifier.uri | http://hdl.handle.net/2299/23698 | |
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 is available online at: https://doi.org/10.1093/mnras/staa3836 | |
dc.description.abstract | Spectroscopic observations of white dwarfs reveal that many of them are polluted by exoplanetary material, whose bulk composition can be uniquely probed this way. We present a spectroscopic and photometric analysis of the DA white dwarf WDJ181417.84$-$735459.83, an object originally identified to have a strong infrared excess in the 2MASS and WISE catalogues that we confirmed to be intrinsic to the white dwarf, and likely corresponding to the emission of a dusty disc around the star. The finding of Ca, Fe and Mg absorption lines in two X-SHOOTER spectra of the white dwarf, taken 8 years apart, is further evidence of accretion from a dusty disc. We do not report variability in the absorption lines between these two spectra. Fitting a blackbody model to the infrared excess gives a temperature of 910$\pm50$ K. We have estimated a total accretion flux from the spectroscopic metal lines of $|\dot{\rm M}| = 1.784 \times 10^{9}\, $g s$^{-1}$. | en |
dc.format.extent | 1520117 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | astro-ph.SR | |
dc.subject | astro-ph.EP | |
dc.title | Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83 | en |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Physics, Astronomy and Mathematics VLs | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/staa3836 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |