J/AJ/130/1719 JHKs photometry in G305.3+0.2 cluster region (Leistra+, 2005)
Two 2MASS-selected young stellar clusters: photometry, spectroscopy, and the
initial mass function.
Leistra A., Cotera A.S., Liebert J., Burton M.
<Astron. J., 130, 1719-1732 (2005)>
=2005AJ....130.1719L 2005AJ....130.1719L
ADC_Keywords: Clusters, open ; Photometry, infrared
Keywords: open clusters and associations: general - stars: formation -
stars: luminosity function, mass function
Abstract:
We present near-IR (NIR) J, H, and Ks images and K-band spectroscopy
of two newly discovered stellar clusters at different stages of
evolution. Our spectra suggest the presence of massive young stellar
objects in the heavily embedded cluster in the star-forming region
near radio source G353.4-0.4 and an O5-O6V star in the cluster near
radio source G305+00.2.
Description:
We observed candidate young stellar clusters with the facility
instrument IRIS2 on the 3.9m Anglo-Australian Telescope (AAT) on 2003
July 12-15.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 64 112 Photometry for all stars in G305.3+0.2 cluster region
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 12 F6.3 s RAs Second of Right Ascension (J2000)
14 A1 --- DE- Sign of the Declination (J2000)
15- 16 I2 deg DEd Degree of Declination (J2000)
18- 19 I2 arcmin DEm Arcminute of Declination (J2000)
21- 25 F5.2 arcsec DEs Arcsecond of Declination (J2000)
27- 32 F6.3 mag Jmag ? The J band magnitude (1)
34- 38 F5.3 mag e_Jmag ? Error in Jmag
40- 45 F6.3 mag Hmag The H band magnitude (1)
47- 51 F5.3 mag e_Hmag Error in Hmag
53- 58 F6.3 mag Ksmag The Ks band magnitude (1)
60- 64 F5.3 mag e_Ksmag Error in Ksmag
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Note (1): Magnitudes <11.5 are taken from the 2MASS Point Source Catalog
(Cat. II/246), since the IRIS2 images are saturated.
Spectroscopically classified sources A1 (O5V-O6V), A2 (B0V-B1V),
and A3 (B2V-B3V) are listed first followed by the remaining sources.
Field stars that were removed before deriving the luminosity and
mass functions are included.
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Nomenclature Notes:
Sources are [LCL2005b] JHHMMSS.sss+DDMMSS.ss in Simbad.
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 29-Dec-2005