2015A&A...579A.113N


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.20CET14:37:27

2015A&A...579A.113N - Astronomy and Astrophysics, volume 579A, 113-113 (2015/7-1)

Large Binocular Telescope view of the atmosphere of GJ 1214b.

NASCIMBENI V., MALLONN M., SCANDARIATO G., PAGANO I., PIOTTO G., MICELA G., MESSINA S., LETO G., STRASSMEIER K.G., BISOGNI S. and SPEZIALI R.

Abstract (from CDS):

The atmospheric composition and vertical structure of the super-Earth GJ 1214b has been a subject of debate since its discovery in 2009. Recent studies have indicated that high-altitude clouds might mask the lower layers. However, some data points that were gathered at different times and facilities do not fit this picture, probably because of a combination of stellar activity and systematic errors. We observed two transits of GJ 1214b with the Large Binocular Camera, the dual-channel camera at the Large Binocular Telescope. For the first time, we simultaneously measured the relative planetary radius k=Rp/R* at blue and red optical wavelengths (B+R), thus constraining the Rayleigh scattering on GJ 1214b after correcting for stellar activity effects. To the same purpose, a long-term photometric follow-up of the host star was carried out with WiFSIP at STELLA, revealing a rotational period that is significantly longer than previously reported. Our new unbiased estimates of k yield a flat transmission spectrum extending to shorter wavelengths, thus confirming the cloudy atmosphere scenario for GJ 1214b.

Abstract Copyright:

Journal keyword(s): techniques: photometric - planetary systems - stars: individual: GJ1214

VizieR on-line data: <Available at CDS (J/A+A/579/A113): b1.dat r1.dat b2.dat r2.dat>

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 GJ 3470 b Pl 07 59 05.8395618539 +15 23 29.240025256           ~ 126 1
2 G 139-21 PM* 17 15 18.9337265994 +04 57 50.064695682   16.40   14.394   M4.5V 220 1
3 NAME LHS 3275b Pl 17 15 18.94 +04 57 49.7           ~ 491 1

    Equat.    Gal    SGal    Ecl

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2019.11.20-14:37:27

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