J/ApJ/638/293 1.1mm sources in the Perseus Molecular Cloud (Enoch+, 2006)
Bolocam survey for 1.1mm dust continuum emission in the c2d Legacy clouds. I. Perseus. Enoch M.L., Young K.E., Glenn J., Evans Ii N.J., Golwala S., Sargent A.I., Harvey P., Aguirre J., Goldin A., Haig D., Huard T.L., Lange A., Laurent G., Maloney P., Mauskopf P., Rossinot P., Sayers J. <Astrophys. J., 638, 293-313 (2006)> =2006ApJ...638..293E
ADC_Keywords: Millimetric/submm sources ; Molecular clouds ; Interstellar medium Keywords: ISM: clouds - ISM: individual (Perseus) - stars: formation Abstract: We have completed a 1.1mm continuum survey of 7.5°2 of the Perseus Molecular Cloud using Bolocam at the Caltech Submillimeter Observatory. This represents the largest millimeter or submillimeter continuum map of Perseus to date. Our map covers more than 30,000 31" (FWHM) resolution elements to a 1σ rms of 15mJy/beam. We detect a total of 122 cores above a 5σ point-source mass detection limit of 0.18M☉, assuming a dust temperature of TD=10K, 60 of which are new millimeter or submillimeter detections. Description: Continuum observations at 1.1mm were made with Bolocam7 at CSO on Mauna Kea, Hawaii during 2003 January 28-February 15. All observations of Perseus were completed in the 1.1mm mode, which has a bandwidth of 45GHz and band center at 268GHz. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 93 122 Source IDs, positions, and peak flux density table2.dat 122 122 Source photometry, masses, column density, sizes, and morphology
See also: J/A+A/440/151 : Observations at 850um in Perseus clusters (Hatchell+, 2005) J/BaltA/12/301 : Vilnius photometry in Barnard 1 (Cernis+, 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [Bolo] 6- 8 I3 --- [EYG2006] Source identification 10- 11 I2 h RAh Hour of Right Ascension (J2000) 13- 14 I2 min RAm Minute of Right Ascension (J2000) 16- 19 F4.1 s RAs Second of Right Ascension (J2000) 21 A1 --- DE- Sign of the Declination (J2000) 22- 23 I2 deg DEd Degree of Declination (J2000) 25- 26 I2 arcmin DEm Arcminute of Declination (J2000) 28- 31 F4.1 arcsec DEs Arcsecond of Declination (J2000) 33- 36 I4 mJy Fp 1.1mm peak flux density in units of mJy/beam 38- 39 I2 mJy e_Fp The 1σ uncertainty in Peak (1) 41- 45 F5.1 --- S/N Signal-to-Noise 47- 81 A35 --- OName Other name(s) (2) 83- 93 A11 --- MIPS MIPS 24µm source? (3)
Note (1): Does not include an additional systematic uncertainty of 15% in the peak flux density. Note (2): Other names listed are the most common identifications from the literature, and are not meant to be a complete list. References are given in parentheses: 1 = O'Linger et al. (1999ApJ...515..696O); 2 = Barsony et al. (1998ApJ...509..733B); 3 = Hatchell et al. (2005, Cat. J/A+A/440/151); 4 = Froebrich et al. (2003MNRAS.346..163F); 5 = Juan et al. (1993A&A...270..432J); 6 = Jennings et al. (1987MNRAS.226..461J); 7 = Sandell & Knee (2001ApJ...546L..49S); 8 = Ladd et al. (1994ApJ...433..117L); 9 = Lefloch et al. (1998A&A...334..269L); 10 = Sandell et al. (1991ApJ...376L..17S); 11 = Bachiller et al. (1991A&A...251..639B); 12 = Mathews & Wilson (2002ApJ...574..822M); 13 = McGaughrean et al. (1994ApJ...436L.189M); 14 = Eisloeffel et al. (2003ApJ...595..259E); 15 = Motte & Andre (2001A&A...365..440M). Note (3): Presence of MIPS source is from the c2d database (Stapelfeldt et al. 2005, in preparation), as follows: Y = present; N = not present; N/A = regions of Perseus not yet available, an IRAS source (within 1') is indicated if appropriate.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [Bolo] 6- 8 I3 --- [EYG2006] Source identification 10- 13 F4.2 Jy F40 ? 40" diameter aperture flux density (1) 15- 18 F4.2 Jy e_F40 ? The 1σ uncertainty in F40 20- 23 F4.2 Jy F80 ? 80" diameter aperture flux density (1) 25- 28 F4.2 Jy e_F80 ? The 1σ uncertainty in F80 30- 33 F4.2 Jy F120 ? 120" diameter aperture flux density (1) 35- 38 F4.2 Jy e_F120 ? The 1σ uncertainty in F120 40- 45 F6.3 Jy Ftot Total integrated flux density (1) 47- 51 F5.3 Jy e_Ftot The 1σ uncertainty in Ftot 53- 57 F5.2 solMass Mass Total mass (2) 59- 62 F4.2 solMass e_Mass The 1σ uncertainty Mass (3) 64- 66 I3 mag AV Peak V band extinction (4) 68- 70 I3 arcsec MinAxis Minor axis FWHM of Gaussian fit 72- 74 F3.1 arcsec e_MinAxis The 1σ uncertainty in MinAxis (5) 76- 78 I3 arcsec MajAxis Major axis FWHM of Gaussian fit 80- 82 F3.1 arcsec e_MajAxis The 1σ uncertainty in MajAxis (5) 84- 86 I3 deg PA [-90,+90] Position angle of Gaussian fit (6) 88- 89 I2 deg e_PA Uncertainty in PA (5) 91- 93 E3.1 cm-3 <n> ? Mean particle density (7) 95-122 A28 --- Morph Morphology description (8)
Note (1): Integrated flux densities are measured assuming a sky value of zero, and corrected for the gaussian beam so that a point source has the same integrated flux density in all apertures with diameter greater than the beam. No integrated flux density is given if the distance to the nearest neighboring source is smaller than the aperture diameter. Note (2): Masses are calculated according to M=[d2Sν]/[Bν(TD)κν] from the total flux density assuming a single dust temperature of TD=10K and a dust opacity at 1.1mm of κ1.1mm=0.0114cm2/g. Note (3): Uncertainties for masses are from photometry only, and do not include uncertainties from κ, T_D, or d, which can be up to a factor of a few or more. Note (4): Calculated from the peak flux density as in Section 4.2. Note (5): Uncertainties for the FWHM and PA are formal fitting errors from the elliptical gaussian fit; additional uncertainties of 10-15% apply to the FWHM, and ∼5 degrees to the PA (determined from simulations). Note (6): Measured east of north of the major axis. Note (7): As calculated from the total mass and the deconvolved average FWHM size. Note (8): The morphology keyword(s) given indicates whether the source is multiple (within 3' of another source), extended (major axis FW at 2σ>1'), elongated (axis ratio at 4σ>1.2), round (axis ratio at 4σ<1.2), or weak (peak flux densities less than 5 times the RMS/pixel in the unfiltered map).
History: From electronic version of the journal References: Young et al. Paper II. 2006ApJ...644..326Y Enoch et al. Paper III. 2007ApJ...666..982E Enoch et al. Paper IV. 2009ApJ...692..973E Cat. J/ApJ/692/973
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 27-Feb-2007
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