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J/A+A/535/A3     SuperWASP observations of pulsating Am stars   (Smalley+, 2011)

SuperWASP observations of pulsating Am stars. Smalley B., Kurtz D.W., Smith A.M.S., Fossati L., Anderson D.R., Barros S.C.C., Butters O.W., Collier Cameron A., Christian D.J., Enoch B., Faedi F., Haswell C.A., Hellier C., Holmes S., Horne K., Kane S.R., Lister T.A., Maxted P.F.L., Norton A.J., Parley N., Pollacco D.L., Simpson E.K., Skillen I., Southworth J., Street R.A., West R.G., Wheatley P.J., Wood P.L. <Astron. Astrophys. 535, A3 (2011)> =2011A&A...535A...3S
ADC_Keywords: Stars, Am ; Stars, variable ; Photometry, CCD Keywords: asteroseismology - stars: chemically peculiar - stars: oscillations - stars: variables: delta Scuti - techniques: photometry Abstract: We have studied over 1600 Am stars at a photometric precision of 1mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating delta Sct and gamma Dor stars, with low amplitudes that have been missed in previous, less extensive studies. While the amplitudes are generally low, the presence of pulsation in Am stars places a strong constraint on atmospheric convection, and may require the pulsation to be laminar. While some pulsating Am stars have been previously found to be delta Sct stars, the vast majority of Am stars known to pulsate are presented in this paper. They will form the basis of future statistical studies of pulsation in the presence of atomic diffusion. Description: File table1 contains details of the pulsating Am stars observed with SuperWASP, including the full set of identified frequencies and amplitudes. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 348 227 Pulsating Am stars observed
See also: III/260 : General Catalogue of Ap and Am stars (Renson+ 2009) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 A6 --- --- [1SWASP] 7- 25 A19 --- SWASP SuperWASP Identifier (JHHMMSS.ss+DDMMSS.s) 27- 31 I5 --- Renson Star number in Renson et al., Cat. III/260 33- 47 A15 --- Name Name 49- 64 A16 --- SpType MK spectral Type 66- 70 F5.3 [K] logTeff ? Effective Temperature 72- 76 F5.3 [Lsun] logL ? Luminosity of star 78 A1 --- Met [a-d] Method used to determine stellar parameters (1) 80- 88 A9 --- Class Pulsation class (2) 90- 93 I4 d DeltaT Time baseline of SuperWASP photometry 95- 96 I2 --- nFreq [1/18] Number of identified frequencies 98-104 F7.4 d-1 Freq1 Frequency 1 106-110 F5.2 mmag Amp1 Amplitude 1 112-118 F7.4 d-1 Freq2 ? Frequency 2 120-124 F5.2 mmag Amp2 ? Amplitude 2 126-132 F7.4 d-1 Freq3 ? Frequency 3 134-138 F5.2 mmag Amp3 ? Amplitude 3 140-146 F7.4 d-1 Freq4 ? Frequency 4 148-152 F5.2 mmag Amp4 ? Amplitude 4 154-160 F7.4 d-1 Freq5 ? Frequency 5 162-166 F5.2 mmag Amp5 ? Amplitude 5 168-174 F7.4 d-1 Freq6 ? Frequency 6 176-180 F5.2 mmag Amp6 ? Amplitude 6 182-188 F7.4 d-1 Freq7 ? Frequency 7 190-194 F5.2 mmag Amp7 ? Amplitude 7 196-202 F7.4 d-1 Freq8 ? Frequency 8 204-208 F5.2 mmag Amp8 ? Amplitude 8 210-216 F7.4 d-1 Freq9 ? Frequency 9 218-222 F5.2 mmag Amp9 ? Amplitude 9 224-230 F7.4 d-1 Freq10 ? Frequency 10 232-236 F5.2 mmag Amp10 ? Amplitude 10 238-244 F7.4 d-1 Freq11 ? Frequency 11 246-250 F5.2 mmag Amp11 ? Amplitude 11 252-258 F7.4 d-1 Freq12 ? Frequency 12 260-264 F5.2 mmag Amp12 ? Amplitude 12 266-272 F7.4 d-1 Freq13 ? Frequency 13 274-278 F5.2 mmag Amp13 ? Amplitude 13 280-286 F7.4 d-1 Freq14 ? Frequency 14 288-292 F5.2 mmag Amp14 ? Amplitude 14 294-300 F7.4 d-1 Freq15 ? Frequency 15 302-306 F5.2 mmag Amp15 ? Amplitude 15 308-314 F7.4 d-1 Freq16 ? Frequency 16 316-320 F5.2 mmag Amp16 ? Amplitude 16 322-328 F7.4 d-1 Freq17 ? Frequency 17 330-334 F5.2 mmag Amp17 ? Amplitude 17 336-342 F7.4 d-1 Freq18 ? Frequency 18 344-348 F5.2 mmag Amp18 ? Amplitude 18
Note (1): Method of stellar parameter determination as follows: a = uvbyβ photometry b = uvby photometry c = Geneva photometry d = spectral energy distribution and parallax Note (2): pulsation classes are * DSCT (δ Sct) stars (frequencies > 5d-1) * GDOR (γ Dor) stars (frequencies < 5d-1) * DSCT+GDOR hybrid: most frequencies above 5d-1, but some low frequencies are present. * GDOR+DSCT hybrid: most frequencies below 5d-1, but some high frequencies are present.
Acknowledgements: Barry Smalley, bs(at)astro.keele.ac.uk
(End) Patricia Vannier [CDS] 01-Jul-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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