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J/AJ/131/1608           NIR sources in S106                        (Oasa+, 2006)

Very low luminosity young cluster and the luminosity and mass functions in S106. Oasa Y., Tamura M., Nakajima Y., Itoh Y., Maihara T., Iwamuro F., Motohara K., Hayashi S.S., Hayashi M., Kaifu N. <Astron. J., 131, 1608-1628 (2006)> =2006AJ....131.1608O
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, infrared Keywords: open clusters and associations: individual (S106) - stars: low-mass, brown dwarfs - stars: luminosity function, mass function - stars: pre-main-sequence Abstract: We present the results of deep near-infrared observations searching for very low mass young stellar objects (YSOs) in the massive star-forming region of S106 taken with the Subaru Telescope. The survey, whose limiting magnitude exceeds 20mag in the JHK' bands, is sensitive enough to provide unprecedented details in the two nebular lobes. In addition, it reveals a census of the stellar population down to objects below the deuterium-burning limit, a fiducial boundary between brown dwarfs and planetary-mass objects. Based on color-color diagrams, nearly 600 embedded YSO candidates with near-infrared excesses have been identified in an area of ∼5'x5' that are not uniformly distributed but centrally concentrated. Description: The JHK' imaging observations of the S106 region were carried out on 1999 May 25 and June 5-6 using the facility instrument Cooled Infrared Spectrograph and Camera for OH Suppression (CISCO) mounted on the Cassegrain focus of the Subaru 8.2m telescope. CISCO is equipped with a 1024x1024 Rockwell HgCdTe array (HAWAII). Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 20 27 27.1 +37 22 39 S106 = SH 2-106 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 69 1697 NIR sources in S106
See also: J/ApJ/541/977 : HST observations of low-mass stars in IC 348 (Najita+, 2000) J/ApJ/540/1016 : K-band+NICMOS photometry of Trapezium Cluster (Luhman+, 2000) J/A+A/337/403 : Low-mass stars evolutionary models (Baraffe+ 1998) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 4 I4 --- [OTN2006] Identification number 6- 7 I2 h RAh Hour of Right Ascension (J2000) 9- 10 I2 min RAm Minute of Right Ascension (J2000) 12- 16 F5.2 s RAs Second of Right Ascension (J2000) 17 A1 --- DE- Sign of the Declination (J2000) 18- 19 I2 deg DEd Degree of Declination (J2000) 21- 22 I2 arcmin DEm Arcminute of Declination (J2000) 24- 28 F5.2 arcsec DEs Arcsecond of Declination (J2000) 30- 35 F6.3 mag Jmag The J band magnitude (1.25µm) 37- 41 F5.3 mag e_Jmag Error in Jmag 43- 48 F6.3 mag Hmag The H band magnitude (1.65µm) 50- 54 F5.3 mag e_Hmag Error in Hmag 56- 61 F6.3 mag K'mag The K' band magnitude (2.13µm) 63- 67 F5.3 mag e_K'mag Error in Kmag 69 I1 --- Type Source classification flag (1)
Note (1): Class of young stellar object: 1 (with accretion disk), 2 (classical T Tau) and 3 (weak-line T Tau or field star candidates).
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 01-Mar-2007
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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