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J/AZh/79/542            BV photometry of active K-M dwarfs        (Bondar, 2002)

Variability of the photospheric radiation of active K-M dwarfs and their X-ray luminosities. Bondar N.I. <Astron. Zh. 79, 542 (2002)> =2002AZh....79..542B =2002ARep...46..489B
ADC_Keywords: Stars, dwarfs; Photometry, UBV Abstract: Variability of the photospheric radiation of 40 (dKe-dMe) dwarfs due to variations in the spottedness of their surfaces is analyzed based on the behavior of their mean annual brightnesses over long time intervals. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 87 40 Objects of our studies of long-term brightness variations table2.dat 53 40 Variations in the mean annual brightness of 40 (dKe-dMe) dwarfs
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Name of the star 12- 18 A7 --- GJ Gliese designation 25- 26 I2 h RAh Right Ascension (1950) (hours) 28- 31 F4.1 min RAm Right Ascension (1950) (minutes) 33 A1 --- DE- Declination (1950) (sign) 34- 35 I2 deg DEd Declination (1950) (degrees) 37- 40 F4.1 arcmin DEm Declination (1950) (minutes) 43- 47 F5.2 mag Vmag ? V magnitude 49- 52 F4.2 mag B-V ? B-V color 55- 65 A11 --- SpType Spectral type 68- 78 A11 --- Type Star type (1) 80- 87 A8 --- Ref References (2)
Note (1): Star type: SB1, SB2: spectral binary VB: visual binary AB: astrometric binary EB: eclipsing binary T: triple system F: flare star BY: BY Dra variable Note (2): References: 20: Gershberg et al. 1999, Cat. J/A+AS/139/555 27: Pettersen, 1991MmSAI..62..217P 28: White et al., 1989ApJS...71..895W 29: Griffin & Emerson, 1975Obs....95...23G 31: Doyle & Butler, 1990A&A...235..335D 32: Petterson & Tsvetkov, 1985IBVS.2660....1P 33: Gliese & Jahreiss, 1979A&AS...38..423G 34: Petterson et al., 1985AJ.....90.2296P 35: Strassmeier et al. 1988A&AS...72..291S, See Cat. V/76 36: Cowley & Hartwick, 1982ApJ...253..237C 37: Young et al. 1984, Proc. 3rd Cambridge Workshop on cool stars, Stellar System and the Sun, 112 38: Byrne & McKay, 1990A&A...227..490B 39: Bopp, 1987ApJ...317..781B
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Name of the star 12- 20 A9 yr TimeInt Time interval studied 23- 25 I3 --- PlateN Number of plates 28- 30 A3 --- Coll Collections (1) 32 A1 --- l_Ampl [~] Limit flag on Ampl 33- 36 F4.2 mag Ampl Variability amplitude 40- 44 A5 yr TimeScale Variability time scale 49- 53 A5 --- VarType Type of variability (2)
Note (1): Collections: 1: Sternberg Astronomical Institute 2: Odessa Observatory 3: Sonneberg Observatory Note (2): Type of variability: cyc: cyclic var: irregular ?: unknown const: constant brightness level within the accuracy of the photographic measurements

(End) Veta Avedisova (INASAN) 01-Dec-2002
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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