Manser, CJ;
Gansicke, BT;
Eggl, S;
Hollands, M;
Izquierdo, P;
Koester, D;
Landstreet, JD;
... Zwart, SP; + view all
(2019)
A planetesimal orbiting within the debris disc around a white dwarf star.
Science
, 364
(6435)
pp. 66-69.
10.1126/science.aat5330.
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1904.02163.pdf - Accepted Version Download (2MB) | Preview |
Abstract
Many white dwarf stars show signs of having accreted smaller bodies, implying that they may host planetary systems. A small number of these systems contain gaseous debris discs, visible through emission lines. We report a stable 123.4-minute periodic variation in the strength and shape of the Ca II emission line profiles originating from the debris disc around the white dwarf SDSS J122859.93+104032.9. We interpret this short-period signal as the signature of a solid-body planetesimal held together by its internal strength.
| Type: | Article |
|---|---|
| Title: | A planetesimal orbiting within the debris disc around a white dwarf star |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1126/science.aat5330 |
| Publisher version: | https://doi.org/10.1126/science.aat5330 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, ROSSBY-WAVE INSTABILITY, PLANETARY DEBRIS, PROTOPLANETARY DISKS, DUST DISTRIBUTION, ACCRETION DISKS, MAGNETIC-FIELD, SATURNS RINGS, GAS DISKS, EMISSION, SYSTEMS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10073850 |
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