J/A+A/473/143 Radial velocities of C stars near Galactic plane (Demers+, 2007)
C stars as kinematic probes of the Milky Way disk from 9 to 15 kpc.
Demers S., Battinelli P.
<Astron. Astrophys., 473, 143-148 (2007)>
=2007A&A...473..143D 2007A&A...473..143D
ADC_Keywords: Galactic plane ; Stars, carbon ; Photometry, infrared ;
Radial velocities
Keywords: stars: carbon - stars: kinematics - Galaxy: disk -
Galaxy: kinematics and dynamics
Abstract:
The availability, from 2MASS, of a large homogeneous sample of
Galactic C stars and the recognition that their absolute magnitude can
be accurately determined offer the possibility to use them as
kinematical probes to investigate motions in the thin or thick disks.
Our aims is to determine the radial velocities for 70 C stars, a few
degrees from the Galactic plane and distributed in longitudes from
60° to 220°.
Description:
Spectra were obtained during six nights in October 2006 with the
spectrograph attached to the Cassegrain focus of the Dominion
Astrophysical Observatory 1.8m Plaskett Telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 68 103 C star candidates
table4.dat 67 103 Radial velocities of C stars
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
II/270 : TCS-CAIN: NIR Survey of Galactic plane (Cabrera-Lavers+, 2006)
J/A+A/275/163 : Luminous Carbon stars in Galactic Plane (Kastner+ 1993)
J/A+AS/93/553 : UBV photometry of stars near galactic plane (Saurer+ 1992)
J/AJ/110/268 : Red and infrared polarimetry in galactic plane (Creese+ 1995)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [DB2007] Sequential number
5- 6 I2 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 14 F4.1 s RAs Right ascension (J2000)
16 A1 --- DE- Declination sign (J2000)
17- 18 I2 deg DEd Declination (J2000)
20- 21 I2 arcmin DEm Declination (J2000)
23- 26 F4.1 arcsec DEs Declination (J2000)
28- 31 F4.2 mag Ksmag 2MASS Ks magnitude
33- 36 F4.2 mag J-Ks 2MASS J-Ks colour index
38- 41 F4.2 mag H-Ks 2MASS H-Ks colour index
43- 46 F4.2 mag E(B-V) Redenning
48- 52 F5.2 mag Imag I magnitude
54- 57 F4.1 kpc dSun Distance from the Sun
59- 62 F4.1 kpc dGC Distance from the Galactic center
64- 68 F5.2 kpc Z Distance from the Galactic plane
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [DB2007] Sequential number
5- 9 F5.1 deg GLON Galactic longitude
11- 14 F4.1 deg GLAT Galactic latitude
16- 19 I4 km/s HRV ?=- Heliocentric radial velocity
21- 22 I2 km/s e_HRV ?=- rms uncertainty on HRV
24- 29 F6.1 km/s VLSR ?=- LSR velocity
31- 67 A37 --- Notes Notes
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History:
* 16-Nov-2007: From electronic version of the journal
* 03-Apr-2008: one misprint corrected in table4 (for [DB2007] 24)
(End) Patricia Vannier [CDS] 16-Nov-2007