Bibcode
Ofir, Aviv; Alonso, Roi; Bonomo, Aldo Stefano; Carone, Ludmila; Carpano, Stefania; Samuel, Benjamin; Weingrill, Jörg; Aigrain, Suzanne; Auvergne, Michel; Baglin, Annie; Barge, Pierre; Borde, Pascal; Bouchy, Francois; Deeg, H. J.; Deleuil, Magali; Dvorak, Rudolf; Erikson, Anders; Mello, Sylvio Ferraz; Fridlund, Malcolm; Gillon, Michel; Guillot, Tristan; Hatzes, Artie; Jorda, Laurent; Lammer, Helmut; Leger, Alain; Llebaria, Antoine; Moutou, Claire; Ollivier, Marc; Päetzold, Martin; Queloz, Didier; Rauer, Heike; Rouan, Daniel; Schneider, Jean; Wuchterl, Guenther
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society: Letters, Volume 404, Issue 1, pp. L99-L103.
Fecha de publicación:
5
2010
Número de citas
34
Número de citas referidas
26
Descripción
Surveys for exoplanetary transits are usually limited not by photon
noise but rather by the amount of red noise in their data. In
particular, although the CoRoT space-based survey data are being
carefully scrutinized, significant new sources of systematic noises are
still being discovered. Recently, a magnitude-dependant systematic
effect was discovered in the CoRoT data by Mazeh et al. and a
phenomenological correction was proposed. Here we tie the observed
effect to a particular type of effect, and in the process generalize the
popular Sysrem algorithm to include external parameters in a
simultaneous solution with the unknown effects. We show that a
post-processing scheme based on this algorithm performs well and indeed
allows for the detection of new transit-like signals that were not
previously detected.
Proyectos relacionados
Sismología Solar y Estelar y Búsqueda de Exoplanetas
Los objetivos genéricos de este Proyecto son: 1) el estudio de la estructura y dinámica del interior solar, 2) la extensión de dicho estudio al caso de otras estrellas, 3) la búsqueda y caracterización de planetas extrasolares por métodos fotométricos (principalmente mediante el método de tránsitos) y espectroscópico (variaciones en la velocidad
Savita
Mathur