J/MNRAS/392/768 SED of 180 SIMBA 1.2mm sources (Hill+, 2009)
Spectral energy distribution modelling of southern candidate massive protostars using the Bayesian inference method. Hill T., Pinte C., Minier V., Burton M.G., Cunningham M.R. <Mon. Not. R. Astron. Soc., 392, 768-782 (2009)> =2009MNRAS.392..768H
ADC_Keywords: Millimetric/submm sources ; Masers ; H II regions ; Energy distributions Keywords: masers - stars: early-type - stars: formation - stars: fundamental parameters - H II regions - submillimetre Abstract: Concatenating data from the millimetre regime to the infrared, we have performed spectral energy distribution (SED) modelling for 227 of the 405 millimetre continuum sources of Hill et al. (2005, Cat. J/MNRAS/363/405) which are thought to contain young massive stars in the earliest stages of their formation. Three main parameters are extracted from the fits: temperature, mass and luminosity. The method employed was the Bayesian inference, which allows a statistically probable range of suitable values for each parameter to be drawn for each individual protostellar candidate. This is the first application of this method to massive star formation. Description: Our 1.2mm SIMBA survey revealed a total of 405 millimetres continuum sources (Paper I, Hill et al. 2005, Cat. J/MNRAS/363/405) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 98 180 *Parameters resulting from SED modelling of 180 of the 405 sources in the SIMBA source list
Note on table2.dat: For each of the temperature, mass and luminosity, the range corresponding to a 1σ (68 per cent) probability of occurrence is presented, with the min and max values representing the lower and upper values of this range, respectively.
See also: J/MNRAS/363/405 : SIMBA observations of cold cores (Hill+, 2005) J/MNRAS/368/1223 : SCUBA observations of cold cores (Hill+, 2006) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Peak right ascension (J2000) 4- 5 I2 min RAm Peak right ascension (J2000) 7- 11 F5.2 s RAs Peak right ascension (J2000) 13 A1 --- DE- Peak declination sign (J2000) 14- 15 I2 deg DEd Peak declination (J2000) 17- 18 I2 arcmin DEm Peak declination (J2000) 20- 23 F4.1 arcsec DEs Peak declination (J2000) 25- 38 A14 --- [HBM2005] Source name (GLLL.ll+BB.BBBA) (1) 39 A1 --- n_[HBM2005] [*] * = Sources which have a distance ambiguity 41- 42 A2 --- Tr [mr ] Ident tracer (2) 44- 49 A6 --- Fit Fit type, Single or SED (3) 50 A1 --- n_Fit [*] * = sources that were fit with IRAS upper limits 52- 58 E7.2 K Tmin Minimum cold temperature 60- 66 E7.2 K Tmax Maximum cold temperature 68- 74 E7.2 solMass Mmin Minimum mass 76- 82 E7.2 solMass Mmax Maximum mass 84- 90 E7.2 solLum Lmim Minimum luminosity 92- 98 E7.2 solLum Lmax Maximum luminosity
Note (1): Distance values are reported in Paper I (Cat. J/MNRAS/363/405). Source names given to two (or less) decimal places are consistent with those reported by Walsh et al. (1998, Cat. J/MNRAS/301/640), Minier et al. (2001A&A...369..278M) and Thompson et al. (2006, Cat. J/A+A/453/1003) which were targeted in the SIMBA survey (Paper I, Hill et al., 2005, Cat. J/MNRAS/363/405). Note that in a few instances, there may not be a direct translation between their Galactic name and their equatorial coordinates. Source names given to three decimal places denote those sources identified by SIMBA, with the extended Galactic names intended to distinguish closely associated sources. The source names are consistent with table 5 of Paper I. Note (2): Denotes (any) association as follows: m = association with methanol maser sites r = association with UC HII regions mr = sources associated with both a methanol maser and a radio continuum source mm = the MM-only sources which are devoid of both of these sources Note (3): This column depicts the type of SED applied to the source. 'SED' indicates that a two-component SED has been applied, whilst 'Single' indicates that a single cold-component fit has been applied to the source.
History: From electronic version of the journal References: Hill et al., Paper I 2005MNRAS.363..405H, Cat. J/MNRAS/363/405 Hill et al., Paper II 2006MNRAS.368.1223H, Cat. J/MNRAS/368/1223
(End) Patricia Vannier [CDS] 24-May-2010
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