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J/A+A/532/A78    Long-period variables in NGC 147 and NGC 185    (Lorenz+, 2011)

Long-period variables in NGC 147 and NGC 185. Lorenz D., Lebzelter T., Nowotny W., Telting J., Kerschbaum F., Olofsson H., Schwarz H.E. <Astron. Astrophys. 532, A78 (2011)> =2011A&A...532A..78L
ADC_Keywords: Galaxies, nearby ; Stars, variable ; Photometry Keywords: stars: AGB and post-AGB - stars: late-type - stars: variables: general - Local Group - galaxies: individual: NGC 147 - galaxies: individual: NGC 185 Abstract: Previous studies on the stellar content of the two nearby dwarf galaxies NGC 147 and NGC 185 reveal a rich population of late-type giants in both systems, including a large number of carbon-rich objects. These stars are known to show pronounced photometric variability, which can be used for a more detailed characterisation of these highly evolved stars. Owing to their well-studied parameters, these Local Group members are ideal candidates for comparative studies. Through photometric monitoring, we attempt to provide a catalogue of long-period variables (LPVs), including Mira variables, semi-regular variables, and even irregular variables in NGC 147 and NGC 185. We investigate the light variations and compare the characteristics of these two LPV populations with the results found for other galaxies, such as the LMC. Description: Tables list the period search results of the two dwarf galaxies NGC 147 and NGC 185. The first five columns give the internal IDs, the coordinates (J2000), mean i-band magnitudes (obtained from the time series) as well as K-band magnitudes. Periods, sigma-amplitudes, and the SIGSPEC-significance are found in the next three columns. Long-period variables exhibiting two significant periods have entries in the ninth and tenth columns listing the second period and its SIGSPEC-significance. The last two columns give the types of different chemistry and the IDs carried out by the authors of Nowotny et al. (2003, Cat. J/A+A/403/93). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 102 213 Period search results of NGC 147 table2.dat 102 513 Period search results of NGC 185
See also: J/A+A/403/93 : Photometry of AGB stars in NGC 185 and NGC 147 (Nowotny+, 2003) Byte-by-byte Description of file: table1.dat table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- NGC Parent galaxy NGC number (147 or 185) (1) 4 A1 --- --- [V] 5- 10 I06 --- Vno Internal identification number (1) 14- 15 I2 h RAh Right ascension (J2000) 17- 18 I2 min RAm Right ascension (J2000) 20- 24 F5.2 s RAs Right ascension (J2000) 28 A1 --- DE- Declination sign 29- 30 I2 deg DEd Declination (J2000) 32- 33 I2 arcmin DEm Declination (J2000) 35- 39 F5.2 arcsec DEs Declination (J2000) 43- 47 F5.2 mag Imag Mean I-band magnitude 51- 55 F5.2 mag Ksmag ? Mean Ks-band magnitude 59- 61 I3 d Per1 ? First significant period 65- 68 F4.2 mag Amp Sigma-amplitude of the lightcurve 72- 74 F3.1 --- Signi1 ? Significance of the detected period 78- 81 I4 d Per2 ? Second significant period 85- 87 F3.1 --- Signi2 ? Significance of the detected period 91 A1 --- Type [CMSu] Chemistry type (2) 95-102 I8 --- ID ? Identification number of Nowotny et al., Cat. J/A+A/403/93 (3)
Note (1): Full names are 147V000NNN for table1, 185V000NNN for table2. Note (2): Chemistry type code as follows: C = carbon-rich long-period variables M = oxygen-rich long-period variables S = long-period variables (C/O close to unity) u = unclassified long-period variables Note (3): Names are <[NKO2003] NGC 147 NNNNNNNN> in Simbad for table1, and <[NKO2003] NGC 185 NNNNNNNN> for table2.
Acknowledgements: Denise Lorenz, denise.lorenz (at)univie.ac.at
(End) D. Lorenz [Department of Astronomy, Vienna], P. Vannier [CDS] 17-Jun-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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