J/BaltA/18/141 North America/Pelican red clump giants ugriJHK (Straizys+, 2009)
Extinctions and distances of dark clouds from ugriJHK photometry of red clump
giants: the North America and Pelican nebulae complex.
Straizys V., Laugalys V.
<Baltic Astron., 18, 141-159 (2009)>
=2009BaltA..18..141S 2009BaltA..18..141S
ADC_Keywords: H II regions ; Stars, giant ; Photometry, infrared
Keywords: ISM: dust clouds: individual (LDN 935) -
stars: fundamental parameters (classification, colors) -
photometric systems: 2MASS, IPHAS, MegaCam, Vilnius
Abstract:
A possibility of applying 2MASS J, H, Ks, IPHAS r, i and Mega-Cam u, g
photometry of red giants for determining distances to dark clouds is
investigated. Red clump giants with a small admixture of G5-K1 and
M2-M3 stars of the giant branch can be isolated and used in
determining distances to separate clouds or spiral arms. Interstellar
extinctions of background red giants can be also used for mapping dust
surface density in the cloud.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 66 104 Stars in the NAP area with photometric
properties of red clump giants in the 2MASS,
IPHAS (r, i) and MegaCam (u, g) systems.
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
J/BaltA/15/483 : Vilnius photometry in LDN 935 (Laugalys+, 2006)
J/BaltA/17/125 : Interstellar reddening in 3 HII regions (Straizys+, 2008)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/104] Sequential number
4 A1 --- n_Seq [*] Note on [SL2009] (1)
6- 12 F7.3 deg RAdeg Right ascension in decimal degrees (J2000)
14- 19 F6.3 deg DEdeg Declination in decimal degrees (J2000)
21- 26 F6.3 mag Ksmag 2MASS Ks magnitude
28- 32 F5.3 mag J-H 2MASS J-H colour index
34- 38 F5.3 mag H-Ks H-Ks colour index
40- 44 F5.3 mag u-g MegaCam u-g colour index
46- 50 F5.3 mag g-r MegaCam-IPHAS g-r colour index
52- 56 F5.3 mag r-i IPHAS r-i colour index
58- 61 F4.2 mag AV ? Absorption in V-band
63- 66 F4.2 kpc Dist ? Distance
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Note (1): 17 stars with the numbers flagged with asterisks probably have
luminosities lower than those of RCGs. For these stars the extinction
and distance values are not given.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Jul-2010