J/BaltA/20/317 TGU 619 stars spectral types and distances (Zdanavicius+, 2011)
Photometry and classification of stars in the direction of the dark cloud
TGU 619 in Cepheus. II. Interstellar extinction and cloud distance.
Zdanavicius K., Maskoliunas M., Zdanavicius J., Straizys V., Kazlauskas A.
<Baltic Astron., 20, 317-337 (2011)>
=2011BaltA..20..317Z 2011BaltA..20..317Z
ADC_Keywords: Molecular clouds ; Photometry, Vilnius ; Stars, distances
Keywords: stars: fundamental parameters - classification -
Galaxy: Cepheus Flare - ISM: extinction - clouds: individual (TGU 619)
Abstract:
Interstellar extinction is investigated in a 1.5 square degree area of
the Cepheus Flare in the direction of the dark cloud TGU 619 at
l=102.5°, b=+15.5° . The study is based on photometric
classification of 658 stars in spectral and luminosity classes down to
V=16mag using photometry in the Vilnius seven-color system
published in Paper I (2009BaltA..18..161Z 2009BaltA..18..161Z, Cat. J/BaltA/18/161). The
extinction in the investigated area is very uneven: in the most
transparent directions we find an extinction of 0.3-1.1mag while in
the darkest directions the maximum extinction observed is 2.6mag. The
real extinction should be considerably larger since in the direction
of some cloud clumps no stars are seen. The distribution of stars in
the AV vs. d plot gives evidence that the dust clouds are located at a
distance of 286±20pc.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 59 657 Stars in the investigated area with most reliable
spectral types determined from Vilnius photometry
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See also:
J/BaltA/18/161 : TGU 619 Vilnius photometry (Zdanavicius+, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [8/1302] Sequential number
<[ZZS2009] NNNN> in Simbad
6- 7 I2 h RAh Right ascension (J2000)
9- 10 I2 min RAm Right ascension (J2000)
12- 15 F4.1 s RAs Right ascension (J2000)
17 A1 --- DE- Declination sign (J2000)
18- 19 I2 deg DEd Declination (J2000)
21- 22 I2 arcmin DEm Declination (J2000)
24- 25 I2 arcsec DEs Declination (J2000)
27- 31 F5.2 mag Vmag [7.6/16.6] Vilnius V magnitude
33- 36 F4.2 mag Y-V Vilnius Y-V colour index
38- 49 A12 --- SpType Photometric spectral type
50- 54 F5.2 mag AV [-0.03/3.4] Absorption in V band
56- 59 I4 pc Dist [43/6390] Photometric distance
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History:
From electronic version of the journal
References:
Zdanavicius et al., Paper I 2009BaltA..18..161Z 2009BaltA..18..161Z, Cat. J/BaltA/18/161
(End) Patricia Vannier [CDS] 07-Mar-2015