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J/A+A/503/1023      Variability Sample Catalogue from SOGS    (Fresneau+, 2009)

Variability Sample Catalogue selected from Sydney Observatory Galactic Survey. Fresneau A., Osborn W.H. <Astron. Astrophys. 503, 1023 (2009)> =2009A&A...503.1023F
ADC_Keywords: Photometry, photographic ; Stars, variable ; Proper motions Keywords: surveys - stars: variables: general Abstract: A set of 55000 stars brighter than about B-magnitude 14 and having at least three observations are identified in the Sydney Observatory Galactic Survey, carried out over the years 1892-1932 along the galactic equator section l∈[275deg,335deg] with galactic latitude b∈[-7deg,7deg]. Short-term (30min) and long-term (decades) magnitude variations in the data set are analyzed. Description: We use a reduced proper motion diagram to classify the stars in our sample into probable dwarfs, giants and other types. The validity of the kinematical classification is checked using objective-prism spectroscopic classification for 10x103 early-type stars. A search is made for statistical correlations between our variability indicators and physical and kinematical stellar properties. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file vsc.dat 87 54929 Variability sample catalogue equator.dat 77 236797 Objects detected along the galactic equator meridian.dat 74 164691 Objects detected along meridian l=330°
See also: J/A+A/469/1221 : Sydney observatory Galactic survey (SOGS) (Fresneau+, 2007) Byte-by-byte Description of file: vsc.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (J2000) 4- 5 I2 min RAm Right ascension (J2000) 7- 11 F5.2 s RAs [0/60] Right ascension (J2000) 13 A1 --- DE- Declination sign (J2000) 14- 15 I2 deg DEd Declination (J2000) 17- 18 I2 arcmin DEm Declination (J2000) 20- 23 F4.1 arcsec DEs [0/60] Declination (J2000) 25- 29 F5.2 mag Vmag V magnitude 31- 35 F5.2 mag Bmag B magnitude 37- 42 F6.3 mag (B-V)0 Dereddened colour index 44- 47 F4.2 mag s1 Short-term scatter σ1 49- 52 F4.2 mag s2 Long-term scatter σ2 54- 57 F4.2 mag s3 Error due to statistical parallax error 59- 64 F6.3 arcsec/yr pmGlon Proper motion components in galactic longitude 66- 71 F6.3 arcsec/yr pmGlat Proper motion components in galactic latitude 73- 77 F5.2 mas plx Statistical parallax 79- 82 F4.2 --- c Probability for scatter correlation (2) 84- 87 A4 --- Ridge Ridge-line on HR diagram (1)
Note (1): The ridge lines are (see Fig.6): MS I = Main sequence star for population I RG I = Red Giant branch for population I RGII = Red Giant branch for population II HBII = blue Horizontal branch for population II SDII = Subdwarf branch for population II WD I = White Dwarf of population I Note (2): This term represents the probability for non-independence of the short-term and long-term variabilities, according to trends of Fig.16 and tabulated in Table 3.
Byte-by-byte Description of file: equator.dat
Bytes Format Units Label Explanations
2- 6 F5.2 mag Vmag V magnitude 9- 10 I2 h RAh Right Ascension J2000 (hours) 12- 13 I2 min RAm Right Ascension J2000 (minutes) 15- 19 F5.2 s RAs [0/60] Right Ascension J2000 (seconds) 21 A1 --- DE- Declination J2000 (sign) 22- 23 I2 deg DEd Declination J2000 (degrees) 25- 26 I2 arcmin DEm Declination J2000 (minutes) 28- 31 F4.1 arcsec DEs [0/60] Declination J2000 (seconds) 33- 39 F7.4 arcsec/yr pmRA Component in RA of the proper motion 40- 46 F7.4 arcsec/yr pmDE Component in DE of the proper motion 48- 52 F5.2 mas plx Statistical parallax 53- 57 F5.2 mas e_plx Statistical parallax error 60- 64 F5.2 mag Bmag Mean value at mean Epoch 66- 69 F4.2 mag e_Bmag Scatter in B-magnitude 72- 77 F6.1 d Ep Mean epoch
Byte-by-byte Description of file: meridian.dat
Bytes Format Units Label Explanations
3- 7 F5.2 mag Vmag V magnitude 9- 13 F5.2 mag Bmag Mean B magnitude at mean Epoch 15- 18 F4.2 mag e_Bmag Scatter in B-magnitude 22- 23 I2 h RAh Right Ascension J2000 (hours) 25- 26 I2 min RAm Right Ascension J2000 (minutes) 28- 32 F5.2 s RAs [0/60] Right Ascension J2000 (seconds) 35 A1 --- DE- Declination J2000 (sign) 36- 37 I2 deg DEd Declination J2000 (degrees) 39- 40 I2 arcmin DEm Declination J2000 (minutes) 42- 45 F4.1 arcsec DEs [0/60] Declination J2000 (seconds) 48- 53 F6.3 arcsec/yr pmRA Component in RA of the proper motion 54- 59 F6.3 arcsec/yr pmDE Component in DE of the proper motion 62- 67 F6.1 d Ep Mean epoch 70- 74 F5.2 mas plx Statistical parallax
Acknowledgements: Alain Fresneau, fresneau(at)astro.u-strasbg.fr
(End) Patricia Vannier [CDS] 07-Jul-2009
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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