2009A&A...506..431M

Query : 2009A&A...506..431M

2009A&A...506..431M - Astronomy and Astrophysics, volume 506, 431-434 (2009/10-4)

Removing systematics from the CoRoT light curves. I. Magnitude-dependent zero point.

MAZEH T., GUTERMAN P., AIGRAIN S., ZUCKER S., GRINBERG N., ALAPINI A., ALONSO R., AUVERGNE M., BARBIERI M., BARGE P., BORDE P., BOUCHY F., DEEG H., DE LA REZA R., DELEUIL M., DVORAK R., ERIKSON A., FRIDLUND M., GONDOIN P., JORDA L., LAMMER H., LEGER A., LLEBARIA A., MAGAIN P., MOUTOU C., OLLIVIER M., PAETZOLD M., PONT F., QUELOZ D., RAUER H., ROUAN D., SABO R., SCHNEIDER J. and WUCHTERL G.

Abstract (from CDS):

This paper presents an analysis that searched for systematic effects within the CoRoT exoplanet field light curves. The analysis identified a systematic effect that modified the zero point of most CoRoT exposures as a function of stellar magnitude. We could find this effect only after preparing a set of learning light curves that were relatively free of stellar and instrumental noise. Correcting for this effect, rejecting outliers that appear in almost every exposure, and applying SysRem, reduced the stellar RMS by about 20%, without attenuating transit signals.

Abstract Copyright: ∼

Journal keyword(s): methods: data analysis - techniques: photometric - planetary systems

Simbad objects: 2

goto Full paper

goto View the references in ADS

Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 CoRoT-7 * 06 43 49.4690164104 -01 03 46.826642700   12.78 11.73 11.36 10.87 K0V 211 1
2 CoRoT-7b Pl 06 43 49.4690164104 -01 03 46.826642700           ~ 402 1

To bookmark this query, right click on this link: simbad:objects in 2009A&A...506..431M and select 'bookmark this link' or equivalent in the popup menu