Access to Astronomical Catalogues

← Click to display the menu
J/A+A/506/465       Solar-like oscillations in red giants        (Hekker+, 2009)

Characteristics of solar-like oscillations in red giants observed in the CoRoT exoplanet field. Hekker S., Kallinger T., Baudin F., De Ridder J., Barban C., Carier F., Hatzes A.P., Weiss W.W., Baglin A. <Astron. Astrophys. 506, 465 (2009)> =2009A&A...506..465H
ADC_Keywords: Stars, giant ; Photometry Keywords: stars: oscillations - methods: observational - techniques: photometric Abstract: We present the results of a statistical study of solar-like oscillations in red-giant stars observed with CoRoT in its exoplanet field during the first long run (LRc01) when the satellite was pointed towards the galactic centre. From the approximately 11400 stars observed, the giants are selected using infrared colours (not dereddened) and the solar-like oscillation signature (a broad envelope with oscillation power at frequencies below 120 microHz). This oscillation power is either detected by a semi-automatic procedure (sap), or by a manual inspection by eye (man). Description: For the 778 stars for which we were able to detect oscillations we fit a power law with a gaussian for the background signal and oscillation signal respectively. The centre of the gaussian is taken as the frequency of maximum oscillation power (numax). The large frequency separations (deltanu) between radial modes with consecutive orders are computed using the autocorrelation of the Fourier spectra, the comb response function and the power spectrum of the power spectrum. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 65 778 Oscillation parameters of 778 red giants observed with CoRoT
See also: B/corot : CoRoT observation log (CoRoT, 2009) J/A+A/479/865 : CoRoT exoplanet candidates (Loeillet+, 2008) http://smsc.cnes.fr/COROT : COROT Home Page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 I9 --- CoRoT COROT identification number 13- 18 F6.3 mag Vmag Apparent magnitude 22- 30 F9.5 deg RAdeg Right ascension (J2000) 34- 41 F8.5 deg DEdeg Declination (J2000) 45- 47 A3 --- Method [sap man] Method used (1) 50- 54 F5.1 uHz numax Frequency of maximum oscillation power 57- 60 F4.1 uHz deltanu ? Large frequency separation 64- 65 A2 --- n_deltanu Number of methods used for deltanu determination
Note (1): Method as follows: sap = Semi-Automatic Procedure man = manual
Acknowledgements: Saskia Hekker, saskia(at)bison.ph.bham.ac.uk
(End) Saskia Hekker [Birmingham Univ., UK], Patricia Vannier [CDS] 26-Jun-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact