SIMBAD references

2009ApJ...694.1559S - Astrophys. J., 694, 1559-1565 (2009/April-1)

Photometric follow-up observations of the transiting Neptune-mass planet GJ 436b.

SHPORER A., MAZEH T., PONT F., WINN J.N., HOLMAN M.J., LATHAM D.W. and ESQUERDO G.A.

Abstract (from CDS):

This paper presents multiband photometric follow-up observations of the Neptune-mass transiting planet GJ 436b, consisting of five new ground-based transit light curves obtained in 2007 May. Together with one already published light curve, we have at hand a total of six light curves, spanning 29 days. The analysis of the data yields an orbital period P = 2.64386±0.00003 days, midtransit time Tc[HJD] = 2454235.8355±0.0001, planet mass Mp= 23.1 ±0.9 M= 0.073±0.003 MJup, planet radius Rp= 4.2±0.2 R= 0.37±0.01 RJup, and stellar radius Rs= 0.45±0.02 R. Our typical precision for the midtransit timing for each transit is about 30 s. We searched the data for a possible signature of a second planet in the system through transit timing variations (TTV) and variation of the impact parameter. The analysis could not rule out a small, of the order of a minute, TTV and a long-term modulation of the impact parameter, of the order of +0.2/yr.

Abstract Copyright:

Journal keyword(s): stars: individual: GJ 436 - planetary systems

VizieR on-line data: <Available at CDS (J/ApJ/694/1559): table1.dat>

Simbad objects: 8

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2019.09.18-04:00:21

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