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J/A+A/526/L10             Transits of WASP-33                  (Herrero+, 2011)

WASP-33: the first delta Scuti exoplanet host star. Herrero E., Morales J.C., Ribas I., Naves R. <Astron. Astrophys. 526, L10 (2011)> =2011A&A...526L..10H
ADC_Keywords: Stars, variable ; Planets ; Photometry Keywords: stars: variables: delta Scuti - stars: oscillations - techniques: photometric - asteroseimology Abstract: We report the discovery of photometric oscillations in the host star of the exoplanet WASP-33b (HD 15082). The data were obtained in the R band in both transit and out-of-transit phases from the 0.3-m telescope and the Montcabrer Observatory and the 0.8-m telescope at the Montsec Astronomical Observatory. Proper fitting and subsequent removal of the transit signal reveals stellar photometric variations with a semi-amplitude of about 1mmag. The detailed analysis of the periodogram yields a structure of significant signals around a frequency of 21 cyc per day, which is typical of delta Scuti-type variable stars. An accurate study of the power spectrum reveals a possible commensurability with the planet orbital motion with a factor of 26, but this remains to be confirmed with additional time-series data that will permit the identification of the significant frequencies. These findings make WASP-33 the first transiting exoplanet host star with delta Scutt variability and a very interesting candidate to search for star-planet interactions. Description: This tables list the R-band photometric follow-up of WASP-33 from the Montsec Observatory used in this paper and also the out-of-transit follow-up photometry taken from Montcabrer Observatory. All the other data used in the paper (from other authors) is available at the Exoplanet Transit Database (ETD, http://var2.astro.cz/ETD). Objects: -------------------------------------------- RA (2000) DE Designation(s) -------------------------------------------- 02 26 51.1 +37 33 02 WASP-33 = HD 15082 -------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 29 121 Out of transit data on 07/09/2010 table2.dat 29 166 Out of transit data on 14/09/2010 table3.dat 29 368 Out of transit data on 21/09/2010 table4.dat 29 279 In transit data on 28/09/2010
Byte-by-byte Description of file: table?.dat
Bytes Format Units Label Explanations
1- 14 F14.5 d HJD Heliocentric Julian Date 15- 22 F8.4 mag DRmag Differential magnitude on R-band 23- 29 F7.4 mag e_DRmag Differential magnitude error
Acknowledgements: Enrique Herrero, eherrero(at)ieec.uab.es
(End) Enrique Herrero (ICE-CSIC, Spain), Patricia Vannier [CDS] 17-Jan-2011
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

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