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HD 50934


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Identification of 106 new infrared carbon stars in the IRAS Point Source Catalog - Near-infrared photometry and their space distribution in the galaxy
A method based solely on IR colors - the combination of near-IR and IRAScolors - is used to identify 106 new IR carbon stars (IRCS). It is shownthat the proportion of IRCS in a region of the IRAS two-color diagrampreviously thought to contain the largest concentration of such stars isnot as large as expected for the faintest objects. A local spatialnumber density of about 12 IRCS/sq kpc is estimated. It is shown to beuniform within 5 to 11 kpc from the galactic center. The local ratio ofIRCS to optical carbon stars is found to be about 35 percent. A totalrestitution rate of about 10 to the -4 solar masses/yr/sq kpc isderived. The efficiency of the combination of near and mid-IR photometryfor the study of AGB stars is confirmed.

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Observation and Astrometry data

Constellation:いっかくじゅう座
Right ascension:06h55m04.65s
Declination:-06°38'23.3"
Apparent magnitude:7.98
Distance:505.051 parsecs
Proper motion RA:-0.6
Proper motion Dec:1.1
B-T magnitude:10.398
V-T magnitude:8.18

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 50934
TYCHO-2 2000TYC 4813-1194-1
USNO-A2.0USNO-A2 0825-03487970
HIPHIP 33252

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