J/AJ/135/2095 JHKs photometry in AFGL 437, 5180 and 5142 (Devine+, 2008)
A WIYN near-infrared investigation of three massive star-forming regions.
Devine K.E., Churchwell E.B., Indebetouw R., Watson C., Crawford S.M.
<Astron. J., 135, 2095-2107 (2008)>
=2008AJ....135.2095D 2008AJ....135.2095D
ADC_Keywords: Clusters, open ; Photometry, infrared
Keywords: infrared: stars - open clusters and associations: general -
stars: luminosity function, mass function
Abstract:
We investigate three embedded massive star-forming regions using the
Near-Infrared Imager (NIRIM) camera on the 3.5m WIYN telescope. We
report J-, H-, and K'-band photometry in the clusters AFGL437,
AFGL5180, and AFGL5142, and use these results to probe the stellar
populations, extinction, and ages of the clusters.
Description:
The clusters were observed between 2003 December 8 and 2003 December
13 using the NIRIM camera on the WIYN 3.5m telescope at Kitt Peak
National Observatory. All clusters were observed in broad-band J
(1.2um), H (1.65um), and K' (2.12um) filters.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 56 186 Photometry results for sources with detections
in J, H, and Ks bands
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Cluster Cluster identification
10- 11 I2 --- ID [1/83] Source identification within the cluster
13 I1 h RAh Hour of Right Ascension (J2000)
15- 16 I2 min RAm Minute of Right Ascension (J2000)
18- 22 F5.2 s RAs Second of Right Ascension (J2000)
24 A1 --- DE- Sign of Declination (J2000)
25- 26 I2 deg DEd Degree of Declination (J2000)
28- 29 I2 arcmin DEm Arcminute of Declination (J2000)
31- 35 F5.2 arcsec DEs Arcsecond of Declination (J2000)
37- 41 F5.2 mag Jmag 2MASS J band magnitude (1)
43- 47 F5.2 mag Hmag 2MASS H band magnitude (1)
49- 53 F5.2 mag Ksmag 2MASS Ks band magnitude (1)
55- 56 A2 --- Class Stellar classification (2)
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Note (1): Uncertainty is ±0.15mag.
Note (2): as determined by location in J-H v. H-K' color-color diagrams,
as follows:
F = lies along reddening vectors from unreddened main-sequence and
giant stars. May be a reddened background, foreground, and
cluster star
T = T-Tauri star as determined using models that predict NIR
emission from dust in the disk around T-Taur stars
(Meyer et al., 1997AJ....114..288M 1997AJ....114..288M)
P = IR excess larger than can be caused by interstellar extinction
towards a main sequence or T-Tauri star, implying
circumstellar envelops and/or disks indicative of protostars
UP = unphysical, that is bluer than the reddened main sequence band
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 04-Jan-2011