SIMBAD references

2016A&A...588A..31F - Astronomy and Astrophysics, volume 588A, 31-31 (2016/4-1)

Uncovering the planets and stellar activity of CoRoT-7 using only radial velocities.

FARIA J.P., HAYWOOD R.D., BREWER B.J., FIGUEIRA P., OSHAGH M., SANTERNE A. and SANTOS N.C.

Abstract (from CDS):

Stellar activity can induce signals in the radial velocities of stars, complicating the detection of orbiting low-mass planets. We present a method to determine the number of planetary signals present in radial-velocity datasets of active stars, using only radial-velocity observations. Instead of considering separate fits with different number of planets, we use a birth-death Markov chain Monte Carlo algorithm to infer the posterior distribution for the number of planets in a single run. In a natural way, the marginal distributions for the orbital parameters of all planets are also inferred. This method is applied to HARPS data of CoRoT-7. We confidently recover the orbits of both CoRoT-7b and CoRoT-7c although the data show evidence for the presence of additional signals.

Abstract Copyright: © ESO, 2016

Journal keyword(s): methods: data analysis - planetary systems - stars: individual: CoRoT-7 - techniques: radial velocities

Simbad objects: 4

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2020.11.30-09:10:10

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