J/A+A/607/A11 SWASP catalogue of RR Lyrae stars (Greer+, 2017)
The SuperWASP catalogue of 4963 RR Lyr stars: identification of 983 Blazhko
effect candidates.
Greer P.A., Payne S.G., Norton A.J., Maxted P.F.L., Smalley B., West P.J.,
Wheatley R.G., Kolb U.C.
<Astron. Astrophys. 607, A11 (2017)>
=2017A&A...607A..11G 2017A&A...607A..11G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Photometry
Keywords: catalogs - stars: variables: RR Lyrae - stars: oscillations -
stars: statistics
Abstract:
We set out to compile a catalogue of RRab pulsating variables in the
SuperWASP archive and identify candidate Blazhko effect objects within
this catalogue. We analysed their light curves and power spectra for
correlations in their common characteristics to further our
understanding of the phenomenon.
Pulsation periods were found for each SWASP RRab object using phase
dispersion minimisation techniques. Low frequency periodic signals
detected in the CLEAN power spectra of RRab stars were matched with
modulation sidebands and combined with pairs of sidebands to produce a
list of candidate Blazhko periods. A novel technique was used in an
attempt to identify Blazhko effect stars by comparing scatter at
different parts of the folded light curve. Pulsation amplitudes were
calculated based on phase folded light curves.
The SuperWASP RRab catalogue consists of 4963 objects of which 3397
are previously unknown. We discovered 983 distinct candidates for
Blazhko effect objects, 613 of these being previously unknown in the
literature as RR Lyrae stars, and 894 are previously unknown to be
Blazhko effect stars. Correlations were investigated between the
scatter of points on the light curve, the periods and amplitudes of
the objects' pulsations, and those of the Blazhko effect.
Description:
The SuperWASP RR Lyrae catalogue contains 4963 RRab type RR Lyrae
objects from the SuperWASP archive. Each entry includes the unique
SWASP identifier, pulsation period in days, pulsation amplitude in
mags, median light curve amplitude in mags, the corresponding GCVS
name, and corresponding SSS/CRTS names, where known. The SWASP
blazhko candidate catalogue contains 1324 rows of Blazhko periods for
983 unique objects from the SWASP RRab catalogue.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 80 4963 The SWASP RRab catalogue
table2.dat 88 641 The SWASP Blazhko candidate catalogue
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See also:
J/A+A/549/A101 : Known Galactic field Blazhko stars (Skarka, 2013)
http://physics.muni.cz/~blasgalf/ : Skarka database
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [1SWASP]
7- 25 A19 --- SWASP SuperWASP unique identifier (JHHMMSS.ss+DDMMSS.s)
27- 36 F10.8 d Ppulse Pulsation period (days)
38- 40 F3.1 mag Amp Pulsation amplitude (mag)
42- 44 F3.1 mag e_Amp Uncertainty in pulsation amplitude (mag)
46- 49 F4.1 mag medmag Light curve median magnitude
51- 53 F3.1 mag e_medmag Uncertainty in median magnitude
55- 63 A9 --- GCVS GCVS designation
65- 80 A16 --- CRTS SSS/CRTS designation
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [1SWASP]
7- 25 A19 --- SWASP SuperWASP unique identifier (JHHMMSS.ss+DDMMSS.s)
27- 36 F10.8 d Ppulse Pulsation period (days)
38- 40 F3.1 mag Amp Pulsation amplitude (mag)
42- 44 F3.1 mag e_Amp Uncertainty in pulsation amplitude (mag)
46- 50 F5.1 d PBl Blazhko period (days)
52- 55 F4.1 d e_PBl Uncertainty in Blazhko period (days)
57- 60 I4 mmag AmpBl Blazhko amplitude (mmag)
62- 80 A19 --- Skarka Name field from Skarka database,
Skarka, 2013, http://physics.muni.cz/~blasgalf
82- 88 F7.2 --- PSk ? Skarka period
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Acknowledgements:
Paul Greer, paul.greer(at)open.ac.uk
(End) Paul Greer [Open University], Patricia Vannier [CDS] 10-Jul-2017