J/A+A/475/1125 Characterization of the hot Neptune GJ 436b (Demory+, 2007)
Characterization of the hot Neptune GJ 436b with Spitzer and ground-based obs.
Demory B.-O., Gillon M., Barman T., Bonfils X., Mayor M., Mazeh T.,
Queloz D., Udry S., Bouchy F., Delfosse X., Forveille T., Mallmann F.,
Pepe F., Perrier C.
<Astron. Astrophys. 475, 1125 (2007)>
=2007A&A...475.1125D 2007A&A...475.1125D
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry, infrared
Keywords: techniques: photometric - techniques: spectroscopic - eclipses -
stars: individual: GJ 436 - planetary systems - infrared: general
Abstract:
We present Spitzer Space Telescope infrared photometry of a secondary
eclipse as well as ground-based photometric and spectroscopic
measurements of the hot Neptune GJ 436b.
Description:
Those tables contains :
1) the final photometric time series obtained after reduction of the
Spitzer IRAC 8 microns data of a secondary eclipse of GJ 436b (see
paper for complete description). The first column gives the date as
Heliocentric Julian Days (HJD), the second one gives the flux
normalized to the out-of-eclipse average value, and the third one
gives the photon noise for each measurement.
2) the ground-based photometry time series of GJ436 obtained with
Euler Swiss telescope at ESO La Silla (Chile) and OFXB 0.6m telescope
at St-Luc (Switzerland). The first column gives the date as
Heliocentric Julian Days (HJD), the second one gives the normalized
relative flux, and the third one gives the photon noise for each
measurement.
3) Ca II H+K indices of GJ436 obtained with HARPS spectrometer at ESO
La Silla. The first column gives the date as Heliocentric Julian Days
(HJD), the second one gives the measured Ca II H+K index from HARPS
spectra.
Objects:
---------------------------------------------
RA (2000) DE Designation(s)
---------------------------------------------
11 42 11.1 +26 42 24 GJ 436b = GJ 436 b
---------------------------------------------
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
sephot.dat 48 669 Secondary eclipse photometry time-series
gbphot.dat 35 24 Ground-based photometry time-series
caiihk.dat 23 23 CaII H+K indices
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See also:
J/A+A/471/L51 : Spitzer obs. of the hot Neptune GJ 436b (Gillon+, 2007)
Byte-by-byte Description of file: sephot.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d HJD Heliocentric Julian Date
20- 31 F12.10 --- Flux Flux normalized to the out-of-transit average value
37- 48 F12.10 --- Noise Photon noise
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Byte-by-byte Description of file: gbphot.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 F14.6 d HJD Heliocentric Julian Date
17- 24 F8.6 --- Flux Normalized relative flux
28- 35 F8.6 --- Noise Photon noise
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Byte-by-byte Description of file: caiihk.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 15 F15.7 d HJD Heliocentric Julian Date
17- 23 F7.5 --- Index Ca II H+K index
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Acknowledgements:
Brice-Olivier Demory, brice-olivier.demory(at)obs.unige.ch
(End) Patricia Vannier [CDS] 23-Oct-2007