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J/MNRAS/407/1170         IRAC photometry of M8                    (Kumar+, 2010)

A study of the massive star-forming region M8 using images from the Spitzer Infrared Array Camera. Kumar D.L., Anandarao B.G. <Mon. Not. R. Astron. Soc., 407, 1170-1181 (2010)> =2010MNRAS.407.1170K
ADC_Keywords: H II regions ; Stars, pre-main sequence ; Photometry, infrared Keywords: stars: formation - stars: pre-main-sequence - stars: winds, outflows - H II regions - ISM: individual objects: M8 - infrared: ISM Abstract: We present photometry and images (3.6, 4.5, 5.8 and 8.0um) from the Spitzer Infrared Array Camera (IRAC) of the star-forming region Messier 8 (M8). The IRAC photometry reveals ongoing star formation in the M8 complex, with 64 class 0/I and 168 class II sources identified in several locations in the vicinity of submm gas cores/clumps. Description: The Spitzer Space Telescope IRAC observations of M8 were obtained by the Spitzer Science Center (SSC) on 2005 September 16. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 87 65 Spitzer IRAC four-channel photometry of the class 0/I YSOs identified in M8 table2.dat 87 168 Spitzer IRAC four-channel photometry of the class II YSOs identified in M8
See also: J/ApJS/120/113 : Faint Emission Lines and Temperature in M8 (Esteban+ 1999) J/A+A/395/499 : XMM observations in M8 and NGC6530 (Rauw+, 2002) J/MNRAS/366/739 : JHKs photometry of Hourglass nebula (Arias+, 2006) Byte-by-byte Description of file: table[12].dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq [1/168] Object sequential number 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 15 F5.2 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 29- 33 F5.2 mag [3.6] Spitzer/IRAC 3.6um magnitude 35- 39 F5.2 mag [4.5] Spitzer/IRAC 4.5um magnitude 41- 45 F5.2 mag [5.8] ?=- Spitzer/IRAC 5.8um magnitude 47- 51 F5.2 mag [8.0] ?=- Spitzer/IRAC 8.0um magnitude 53- 57 F5.2 --- alpha ?=- IRAC spectral index 59- 63 F5.2 mag Hmag ? H magnitude 65- 69 F5.2 mag J-H ? J-H colour index 71- 74 F4.2 mag H-K ? H-K colour index 76- 80 A5 --- r_Hmag Reference for near-IR photometry (1) 82- 87 A6 --- OName Other name (KS N is named <[WPH90] KS N> in Simbad)
Note (1): References as follows: 1 = 2MASS, Cat. II/246 2 = Arias et al. (2006, Cat. J/MNRAS/366/739) 3 = Arias et al. (2007MNRAS.374.1253A)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Feb-2011
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