Advanced

A planetesimal orbiting within the debris disc around a white dwarf star

Manser, Christopher J. ; Gänsicke, Boris T. ; Eggl, Siegfried ; Hollands, Mark ; Izquierdo, Paula ; Koester, Detlev ; Landstreet, John D. ; Lyra, Wladimir ; Marsh, Thomas R. and Meru, Farzana , et al. (2019) In Science 364(6435). p.66-69
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.
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Astronomy, Planetary Sciences, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
in
Science
volume
364
issue
6435
pages
4 pages
publisher
American Association for the Advancement of Science
external identifiers
  • scopus:85064315993
  • pmid:30948547
ISSN
1095-9203
DOI
10.1126/science.aat5330
project
A unified picture of white dwarf planetary systems
language
English
LU publication?
yes
id
0f213c86-2f00-4e5d-8bf1-102d4b6d0dbb
alternative location
https://arxiv.org/abs/1904.02163
date added to LUP
2019-04-30 10:05:20
date last changed
2020-10-07 06:25:50
@article{0f213c86-2f00-4e5d-8bf1-102d4b6d0dbb,
  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.},
  author       = {Manser, Christopher J. and Gänsicke, Boris T. and Eggl, Siegfried and Hollands, Mark and Izquierdo, Paula and Koester, Detlev and Landstreet, John D. and Lyra, Wladimir and Marsh, Thomas R. and Meru, Farzana and Mustill, Alexander J. and Rodriguez-Gil, Pablo and Toloza, Odette and Veras, Dimitri and Wilson, David J. and Burleigh, Matthew R. and Davies, Melvyn B. and Farihi, Jay and Gentile Fusillo, Nicola and de Martino, Domitilla and Parsons, Steven G. and Quirrenbach, Andreas and Raddi, Roberto and Reffert, Sabine and Del Santo, Melania and Schreiber, Matthias R. and Silvotti, Roberto and Toonen, Silvia and Villaver, Eva and Wyatt, Mark and Xu, Siyi and Portegies Zwart, Simon},
  issn         = {1095-9203},
  language     = {eng},
  month        = {04},
  number       = {6435},
  pages        = {66--69},
  publisher    = {American Association for the Advancement of Science},
  series       = {Science},
  title        = {A planetesimal orbiting within the debris disc around a white dwarf star},
  url          = {http://dx.doi.org/10.1126/science.aat5330},
  doi          = {10.1126/science.aat5330},
  volume       = {364},
  year         = {2019},
}