J/A+A/468/1009 Star formation in Perseus. II. (Hatchell+, 2007)
Star formation in Perseus. II. SEDs, classification, and lifetimes.
Hatchell J., Fuller G.A., Richer J.S., Harries T.J., Ladd E.F.
<Astron. Astrophys., 468, 1009-1024 (2007)>
=2007A&A...468.1009H 2007A&A...468.1009H
ADC_Keywords: Molecular clouds ; Spectra, millimetric/submm ; Infrared sources ;
Energy distributions
Keywords: submillimeter - stars: formation - stars: evolution - ISM: structure -
ISM: dust, extinction
Abstract:
Hatchell et al. (2005, Cat. J/A+A/440/151, Paper I) published a
submillimetre continuum map of the Perseus molecular cloud, detecting
the starless and protostellar cores within it.
The aim is to determine the evolutionary stage of each submm core in
Perseus, and investigate the lifetimes of these phases.
Description:
We compile spectral energy distributions (SEDs) from 2MASS (1-2um),
Spitzer IRAC (3.6, 4.5, 5.8, 8.0um), Michelle (11 and 18um), IRAS (12,
25, 60, 100um), SCUBA (450 and 850um) and Bolocam (1100um) data.
Sources are classified starless/protostellar on the basis of infrared
and/or outflow detections and Class I/Class 0 on the basis of Tbol,
Lbol/Lsmm and F3.6/F850. In order to investigate the dependence of
these evolutionary indicators on mass, we construct radiative transfer
models of Class 0 sources.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 94 103 Source properties
table5.dat 164 103 Source peak positions and cross-identification
with Hatchell et al. (2005, Cat. J/A+A/440/151,
Bolocam (Enoch et al., 2006, Cat. J/ApJ/638/293),
2MASS (Cat. II/246) , and other names commonly
associated with the source.
refs.dat 197 36 References
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See also:
J/A+A/440/151 : Observations at 850um in Perseus clusters (Hatchell+, 2005)
J/ApJ/638/293 : 1.1mm sources in the Perseus Molecular Cloud (Enoch+, 2006)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Source Source designation (G1)
9- 14 F6.2 Jy Fi(850) Integrated 850um flux
16- 17 I2 arcsec r8 Effective radius at 850um (1)
19 A1 --- l_Fi(450) Limit flag on Fint(450)
20- 24 F5.1 Jy Fi(450) ?=- Integrated 450um flux
26- 27 I2 arcsec r4 ?=- Effective radius at 450um (1)
29 A1 --- l_Lbol Limit flag on Lbol
30- 35 F6.2 solLum Lbol ?=- Bolometric luminosity
38- 41 F4.1 solMass Menv Envelope mass calculated at 10K
44 A1 --- l_Tbol Limit flag on Tbol
45- 47 I3 K Tbol Bolometric temperature
49 A1 --- l_Lbol/Lsmm Limit flag on Lbol/Lsmm
50- 53 F4.1 3000 Lbol/Lsmm Luminosity ratio, Lbol/Lsmm
55 A1 --- l_F3.6/F850 Limit flag on F3.6/F850
56- 61 E6.2 --- F3.6/F850 Flux ratio, F3.6µm/F850µm
63 A1 --- Cl [0SI] Classification (2)
65 A1 --- --- [(]
66- 68 A3 --- Cl2 [0I] Class I indicators for Tbol, Lbol/Lsmm
and F3.6/F850 respectively (2)
69 A1 --- --- [)]
70- 94 A25 --- Name Name
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Note (1): Effective radius is sqrt{A/π} where A is the clump area.
Note (2): Sources are classed as starless (S) if there is no infrared
source or outflow, otherwise the classification is based on the
three evolutionary indicators discussed in Sect. 3, which, giving
the condition for a Class I are: Tbol>70K, Lbol/Lsmm>3000 and
F3.6/F850>0.003. The final classification is based on the majority of
the indicators with results of individual indicators given in brackets
in the order listed here.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Source Source designation (G1)
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 18 F4.1 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 30 F4.1 arcsec DEs Declination (J2000)
32- 45 A14 ---- PapI Source numbers in Paper I (1)
47- 54 A8 --- Bolocam Bolocam designation, [EYG2006] Bolo NNN
56- 71 A16 --- 2MASS 2MASS designation
72-164 A93 --- ONames Other associated source names (2)
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Note (1): Paper I, Hatchell et al. (2005, Cat. J/A+A/440/151, [HRF2005] NN
Note (2): The references number in parentheses are detailed in refs.dat
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 45 A22 --- Aut Author's name
47-197 A151 --- Com Comments
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Global notes:
Note (G1): Objects designation:
For NNN and clfNN, [HFR2007] NNN and [HFR2007] clf NN in Simbad.
For BolNNN, [EYG2006] Bolo NNN in Simbad
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 26-Oct-2007