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

Bibcode
2019Sci...364...66M
DOI
10.1126/science.aat5330
Manser, C. J.; Gänsicke, Boris T.; Eggl, Siegfried; Hollands, Mark; Izquierdo, P.; Koester, Detlev; Landstreet, John D.; Lyra, Wladimir; Marsh, Thomas R.; Meru, Farzana; Mustill, Alexander J.; Rodríguez-Gil, P.; Toloza, Odette; Veras, Dimitri; Wilson, David J.; Burleigh, Matthew R.; Davies, Melvyn B.; Farihi, Jay; Gentile Fusillo, Nicola; de Martino, Domitilla; Parsons, Steven G.; Quirrenbach, Andreas; Raddi, Roberto; Reffert, Sabine; Del Santo, Melania; Schreiber, Matthias R.; Silvotti, Roberto; Toonen, Silvia; Villaver, Eva; Wyatt, Mark; Xu, Siyi; Portegies Zwart, Simon
Referencia bibliográfica

Science, Volume 364, Issue 6435, pp. 66-69 (2019).

Fecha de publicación:
4
2019
Revista
Science
Número de autores
32
Número de autores del IAC
2
Número de citas
127
Número de citas referidas
117
Descripción
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.
Proyectos relacionados
Representación de la variable cataclísmica SS Cygni (Chris Moran)
Estrellas Binarias
El estudio de las estrellas binarias es una parte esencial de la astrofísica estelar. Una gran parte de las estrellas de nuestra Galaxia y de otras galaxias se ha formado en sistemas binarios o múltiples, por lo que entender la estructura y evolución de estos sistemas es importante desde el punto de vista estelar y galáctico. Un aspecto en el que
Pablo
Rodríguez Gil
En ejecución
Tipo
Con árbitro
Física estelar e interestelar (FEEI)

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