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J/AJ/140/462        Intermediate-mass star-forming regions   (Arvidsson+, 2010)

A sample of intermediate-mass star-forming regions: making stars at mass column densities <1 g/cm2. Arvidsson K., Kerton C.R., Alexander M.J., Kobulnicky H.A., Uzpen B. <Astron. J., 140, 462-479 (2010)> =2010AJ....140..462A
ADC_Keywords: Associations, stellar ; H II regions ; Infrared sources ; Galactic plane Keywords: H II regions - ISM: clouds - stars: formation - surveys (BGPS, GLIMPSE, GRS, IRAS, MIPSGAL, NVSS) Abstract: In an effort to understand the factors that govern the transition from low- to high-mass star formation, for the first time we identify a sample of intermediate-mass star-forming regions (IM SFRs) where stars up to (but not exceeding) ∼8M are being produced. We use IRAS colors and Spitzer Space Telescope mid-IR images, in conjunction with millimeter continuum and 13CO maps, to compile a sample of 50 IM SFRs in the inner Galaxy. These are likely to be precursors to Herbig AeBe stars and their associated clusters of low-mass stars. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 95 50 IM SFRs - Properties of blobs and shells table4.dat 99 50 IM SFRs - Photometry and luminosity table5.dat 75 42 IM SFRs - Molecular material from the GRS (Galactic Ring Survey, Jackson 2006ApJS..163..145J) table6.dat 65 50 IM SFRs - Molecular material from the BGPS (Bolocam Galactic Plane Survey, see J/ApJS/188/123)
See also: J/ApJ/699/1153 : Kinematic dist. to GRS molecular clouds (Roman-Duval+, 2009) J/ApJS/182/131 : Molecular clouds and clumps in the GRS (Rathborne+, 2009) J/ApJS/188/123 : The Bolocam Galactic Plane Survey. II. (Rosolowsky+, 2010) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IRAS IRAS Name 11- 12 A2 --- m_IRAS [-NS ] Multiplicity index on IRAS 14- 21 F8.5 deg GLON Galactic longitude 23- 30 F8.5 deg GLAT Galactic latitude 32- 34 F3.1 arcsec theta Angular diameter θ 36- 40 F5.1 km/s Vlsr ? Associated CO velocity from the GRS (Jackson et al., 2006ApJS..163..145J) 42- 45 F4.1 km/s dV ? Width of the associated CO feature ΔV 47- 49 F3.1 kpc dnear ? Near distance 51- 54 F4.1 kpc dfar ? Far distance 56- 59 F4.1 kpc Dist ? Adopted distance used in subsequent analysis 61- 65 A5 --- Flag Flag (G1) 67- 69 F3.1 pc Diam ? Diameter, calculated using the adopted distance 70 A1 --- --- [/] 71- 73 F3.1 pc Diam2 ? Second diameter, calculated using the adopted distance 75- 79 F5.1 10+3Lsun LIR ? Infrared luminosity (taken from table4) 80 A1 --- --- [/] 81- 84 F4.1 10+3Lsun LIR2 ? Second infrared luminosity (taken from table4) 86- 89 I4 Msun MLTE ? LTE mass (taken from table5) 90 A1 --- --- [/] 91- 95 I5 Msun MLTE2 ? Second LTE mass (taken from table5)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IRAS IRAS Name 11- 12 A2 --- m_IRAS [-NS ] Multiplicity index on IRAS 14- 16 I3 arcsec Ap Aperture radius 18- 21 F4.2 Jy F3.6 Spitzer/IRAC 3.6um flux density 23- 26 F4.2 Jy e_F3.6 1σ total uncertainty on F3.6 28- 31 F4.2 Jy F4.5 Spitzer/IRAC 4.5um flux density 33- 36 F4.2 Jy e_F4.5 1σ total uncertainty on F4.5 38- 42 F5.2 Jy F5.8 Spitzer/IRAC 5.8um flux density 44- 47 F4.2 Jy e_F5.8 1σ total uncertainty on F5.8 49- 53 F5.2 Jy F8.0 Spitzer/IRAC 8.0um flux density 55- 58 F4.2 Jy e_F8.0 1σ total uncertainty on F8.0 60- 64 F5.2 Jy F24 Spitzer/MIPS 24um flux density 66- 69 F4.2 Jy e_F24 1σ total uncertainty on F24 71- 75 F5.1 Jy F60 IRAS PSC 60um flux density 77- 82 F6.1 Jy F100 IRAS PSC 100um flux density 84- 88 A5 --- Flag Flag (G1) 90- 94 F5.2 10+3Lsun Lnear ? Near luminosity calculated using the near distance in table3 95- 99 F5.1 10+3Lsun Lfar ? Far luminosity calculated using the far distance in table3
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IRAS IRAS Name 11- 12 A2 --- m_IRAS [-NS ] Multiplicity index on IRAS 14- 17 F4.1 K.km/s Ipeak Peak integrated flux 19- 22 F4.1 10+21cm-2 N(H2)p Peak H2 column density 24- 27 F4.2 g/cm2 N(M)p Peak mass column density 29- 32 F4.1 10-7sr Omega Solid angle occupied by the CO clump (used to calculate the mass) 34 A1 --- Flag Flag (G1) 36- 39 I4 Msun M1near Near distance clump mass (LTE) 41- 45 I5 Msun M1far Far distance clump mass (LTE) 47- 59 A13 --- GRSMC Parent GRS molecular clump, GLLL.ll+BB.bb (Rathborne et al., Cat. J/ApJS/182/131) 61- 62 A2 --- Clump Asociated GRSMC-clump 64- 69 I6 Msun Mcld ? Mass of the GRSMC (1) 71- 75 A5 --- Note Note (2)
Note (1): Cloud masses are calculated using L(13CO) from Roman-Duval et al. (2009, Cat. J/ApJ/699/1153), and conversion factors from Simon et al. (2001ApJ...551..747S) and references therein. Note (2): telling what distance Roman-Duval et al. (2009, Cat. J/ApJ/699/1153) put the cloud (F=Far, N=Near, T=Total). (!) indicates where that distance determination differs from the standard ruler method used in this paper.
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IRAS IRAS Name 11- 12 A2 --- m_IRAS [-NS ] Multiplicity index on IRAS 14- 28 A15 --- BGPS BGPS designation (GLLL.ll+BB.bb), Rosolowsky et al., 2010, Cat. J/ApJS/188/123 30- 33 F4.2 Jy Fp ? Peak flux, in Jy/beam 35- 39 F5.1 10+21cm-2 N(H2)p ? Peak H2 column density 41- 44 F4.2 g/cm2 N(M)p ? Peak mass column density 46- 48 F3.1 Jy S ? Integrated flux density at 268GHz (1.1mm) from the BGPS catalog (Rosolowsky et al., 2010, Cat. J/ApJS/188/123) 50- 54 A5 --- Flag Flag (G1) 56- 59 I4 Msun M2near ? Near distance BGPS mass 61- 65 I5 Msun M2far ? Far distance BGPS mass
Global notes: Note (G1): Flags as follows: N = for near F = for far T = for tangent point U = for unassigned A = for ambiguous CO association
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Jun-2012
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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