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J/ApJ/674/336       Spitzer observations of NGC 1333         (Gutermuth+, 2008)

Spitzer observations of NGC 1333: a study of structure and evolution in a nearby embedded cluster. Gutermuth R.A., Myers P.C., Megeath S.T., Allen L.E., Pipher J.L., Muzerolle J., Porras A., Winston E., Fazio G. <Astrophys. J., 674, 336-356 (2008)> =2008ApJ...674..336G
ADC_Keywords: Nebulae ; Photometry, infrared ; Photometry, millimetric/submm Keywords: stars: formation Abstract: We present a comprehensive analysis of structure in the young, embedded cluster, NGC 1333 using members identified with Spitzer and 2MASS photometry based on their IR-excess emission. A total of 137 members are identified in this way, composed of 39 protostars and 98 more evolved pre-main-sequence stars with disks. Of the latter class, four are transition/debris disk candidates. Description: Observations of the NGC 1333 region were obtained with the IRAC instrument on board Spitzer over two epochs: 2004 February 10 (PID 6) and 2004 September 8 (PID 178). MIPS imaging of NGC 1333 was obtained on 2004 February 3 (PID 58) at the medium scan rate. All sources detected by Spitzer are matched to Two-Micron All Sky Survey (2MASS) Point Source Catalog (PSC) sources, extending the potential wavelength coverage for these objects to J band at 1.2um. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 114 137 Spitzer-identified YSOs: 2MASS, IRAC, and MIPS photometry table3.dat 86 137 Spitzer-identified YSOs: addendum
See also: J/A+AS/106/165 : Near-IR imaging photometry of NGC 1333 (Aspin+ 1994) J/AJ/111/1964 : JHK photometry of NGC1333 (Lada+, 1996) J/ApJ/575/354 : Young stellar objects in the NGC 1333 (Getman+, 2002) J/A+A/401/543 : XMM-Newton observations of NGC 1333 (Preibisch, 2003) J/AJ/127/1131 : NGC 1333 low-mass stars infrared photometry (Wilking+, 2004) J/ApJ/655/958 : 90-GHz observations in NGC 1333 (Walsh+, 2007) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Running identification number ([GMM2008] in Simbad) 5- 6 I2 h RAh Hour of Right Ascension (J2000) 8- 9 I2 min RAm Minute of Right Ascension (J2000) 11- 15 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- 27 F4.1 arcsec DEs Arcsecond of Declination (J2000) 29- 33 F5.2 mag Jmag ? 2MASS J band magnitude 35- 38 F4.2 mag e_Jmag ? Uncertainty in Jmag 40- 44 F5.2 mag Hmag ? 2MASS H band magnitude 46- 49 F4.2 mag e_Hmag ? Uncertainty in Hmag 51- 55 F5.2 mag Ksmag ? 2MASS Ks band magnitude 57- 60 F4.2 mag e_Ksmag ? Uncertainty in Ksmag 62- 66 F5.2 mag 3.6mag ? IRAC 3.6 micron band magnitude 68- 71 F4.2 mag e_3.6mag ? Uncertainty in 3.6mag 73- 77 F5.2 mag 4.5mag IRAC 4.5 micron band magnitude 79- 82 F4.2 mag e_4.5mag Uncertainty in 4.5mag 84- 88 F5.2 mag 5.8mag ? IRAC 5.8 micron band magnitude 90- 93 F4.2 mag e_5.8mag ? Uncertainty in 5.8mag 95- 99 F5.2 mag 8.0mag ? IRAC 8 micron band magnitude 101-104 F4.2 mag e_8.0mag ? Uncertainty in 8.0mag 106-109 F4.2 mag 24mag ? MIPS 24 micron band magnitude 111-114 F4.2 mag e_24mag ? Uncertainty in 24mag
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Running identification number ([GMM2008] in Simbad) 5- 6 I2 h RAh Hour of Right Ascension (J2000) 8- 9 I2 min RAm Minute of Right Ascension (J2000) 11- 15 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- 27 F4.1 arcsec DEs Arcsecond of Declination (J2000) 29- 68 A40 --- Match Literature matched counterparts (4) 70- 75 A6 --- Class YSO classification (1) 77- 80 F4.2 mag AK ? The K band extinction (2) 82- 86 F5.2 --- Fit ? Fit of IRAC photometry (3)
Note (1): Asterisks mark "deeply embedded" sources with questionable IRAC colors or incomplete IRAC photometry and relatively bright MIPS 24um photometry. Note (2): Only provided for sources with valid JHKs photometry. Note (3): Defined as the slope of the linear least squares fit to the 3.6-8.0um SEDs in logλFλ vs logλ space. Extinction is not accounted for in these values; high extinction can bias Fit to higher values. Note (4): Designations are from: ASR = Aspin, Sandell and Russell 1994, Cat. J/A+AS/106/165 LAL = Lada, Alves, and Lada 1996, Cat. J/AJ/111/1964 ([LAL96] in Simbad) SVS = Strom, Vrba and Strom 1976AJ.....81..314S ([SVS76] NGC 1333 in Simbad)
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 09-Apr-2010
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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