J/A+A/404/621 Light curves of ROTSE-I delta Scuti type stars (Jin+, 2003)
Multiband photometric re-classification of ROTSE-I delta Scuti type stars.
Jin H., Kim S.-L., Kwon S.-G., Youn J.H., Lee C.-U., Lee D.-J., Kim K.-S.
<Astron. Astrophys. 404, 621 (2003)>
=2003A&A...404..621J 2003A&A...404..621J
ADC_Keywords: Stars, variable ; Photometry, CCD
Keywords: stars: variables: Delta Scuti - stars: binaries: eclipsing -
techniques: photometric
Abstract:
We present multi-passband CCD photometry of 20 ROTSE-I δ Scuti
type pulsating stars and 1 RR Lyrae star to re-classify their variable
types using the comparison of amplitudes between V and I passbands.
For the re-classification, we used a criterion that pulsating stars
have larger amplitude differences between passbands than eclipsing
binaries because brightness changes of pulsating stars are mainly due
to the temperature variations. As a result, only six stars were
re-confirmed as δ Scuti variables and thirteen stars turned out
to be W UMa type eclipsing binaries. The other two stars were
identified as one cataclysmic variable and one non-variable,
respectively. Our results suggest that a number of ROTSE-I δ
Scuti type stars, which do not show typical pulsating light curves of
high amplitude δ Scuti stars, are W UMa type eclipsing binaries.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 114 21 *ROTSE parameters of the stars studied
table3a.dat 86 72 J125140.01+371546.2 light curves
table3b.dat 86 66 J134113.76+314725.5 light curves
table3c.dat 86 106 J140105.55+244216.2 light curves
table3d.dat 86 82 J152406.95+365200.9 light curves
table3e.dat 86 70 J161520.21+354226.1 light curves
table3f.dat 86 64 J164839.21+302745.6 light curves
table3g.dat 86 102 J170724.41+361525.7 light curves
table3h.dat 86 70 J171640.25+293412.9 light curves
table3i.dat 86 56 J173937.28+501202.0 light curves
table3j.dat 86 48 J181123.41+303641.4 light curves
table3k.dat 86 50 J181324.63+255008.4 light curves
table3l.dat 86 60 J181613.28+495205.0 light curves
table3m.dat 86 52 J182943.22+280955.2 light curves
table3n.dat 86 64 J183206.54+403555.9 light curves
table3o.dat 86 62 J184522.47+455321.0 light curves
table3p.dat 86 51 J191516.94+475914.5 light curves
table3q.dat 86 85 J192108.38+510200.8 light curves
table3r.dat 86 63 J193210.39+454409.7 light curves
table3s.dat 86 68 J193445.28+455416.9 light curves
table3t.dat 86 64 J194505.99+532334.5 light curves
table3u.dat 86 70 J163117.94+115952.4 light curves
table3.tex 132 1939 LaTeX version of table3
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Note on list.dat: contains also the new class from the table2 of the paper,
as well as the variable star name if existing in 2012 (added at CDS)
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See also:
J/AJ/119/1901 : ROTSE all-sky surveys for variable stars (Akerlof+, 2000)
Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- ROTSE RSV1 ROTSE1 name
21- 30 F10.6 deg RAdeg Right ascension in decimal degrees (J2000) (4)
32- 41 F10.6 deg DEdeg Declination in decimal degrees (J2000) (4)
43- 52 F10.8 d Per Period
54- 63 F10.8 d e_Per rms uncertainty on Per
65- 70 F6.3 mag mag Mean ROTSE magnitude
72- 76 F5.3 mag Amp Amplitude
78- 81 A4 --- ClR ROTSE Classification: ds=δ Sct variable,
rrab=RR Lyr (class ab) star
83- 87 A5 --- Vtype Our variable classification (3)
90- 91 I2 --- Qual Quality flag of the light curve (2)
93-103 A11 --- table3 Name of the table containing the light curves
105-114 A10 --- VName Name of variable (3)
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Note (2): The light curve and its classification was manually graded for
quality from 10 (excellent) to 1 (marginal)
Note (3): Columns added at CDS in 2012.
* the type of variability is from the table 2 of the paper;
the type HADS = High Amplitude δ Sct star
* the name of the variable was added from the GCVS (Cat. B/gcvs)
Note (4): the size of a pixel is ∼3arcsec, and the accuracy of the position
cannot be better than 0.3arcsec.
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Byte-by-byte Description of file: table3[a-u].dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d JDmag ? Julian date of ROTSE observation
16- 22 F7.4 mag mag ? ROTSE magnitude
24- 29 F6.4 mag e_mag ? rms uncertainty on mag
31- 43 F13.5 d JDImag ? Julian date of I band observation
45- 52 F8.3 mag Imag ? I magnitude
54- 59 F6.3 mag e_Imag ? rms uncertainty on Imag (99.900 => erroneous)
61- 73 F13.5 d JDVmag ? Julian date of V band observation
75- 80 F6.3 mag Vmag ? V magnitude
82- 86 F5.3 mag e_Vmag ? rms uncertainty on Vmag
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Acknowledgements: Jin Ho
(End) Patricia Bauer [CDS] 02-May-2003