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J/MNRAS/374/1413            SCUBA survey of Orion              (Nutter+, 2007)

A SCUBA survey of Orion - the low-mass end of the core mass function. Nutter D., Ward-Thompson D. <Mon. Not. R. Astron. Soc., 374, 1413-1420 (2007)> =2007MNRAS.374.1413N
ADC_Keywords: Molecular clouds ; Millimetric/submm sources ; Stars, masses Keywords: stars: formation - stars: pre-main-sequence - ISM: clouds - dust, extinction - ISM individual: Orion Abstract: We have re-analysed all of the Submillimetre Common User Bolometer Array (SCUBA) archive data of the Orion star-forming regions. We have put together all of the data taken at different times by different groups. Consequently, we have constructed the deepest submillimetre maps of these regions ever made. There are four regions that have been mapped: Orion A North and South, and Orion B North and South. We find that two of the regions, Orion A North and Orion B North, have deeper sensitivity and completeness limits, and contain a larger number of sources, so we concentrate on these two. We compare the data with archive data from the Spitzer Space Telescope to determine whether or not a core detected in the submillimetre is pre-stellar in nature. Description: The submillimetre data presented in this study were obtained using the Submillimetre Common User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT). This instrument takes observations at 450 and 850um simultaneously through the use of a dichroic beam-splitter. The telescope has a resolution of 8arcsec at 450um and 14arcsec at 850um. The data presented here were acquired from the JCMT data archive, operated by the Canadian Astronomy Data Centre. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 79 393 The properties of each of the cores, determined from the submillimetre data
See also: J/A+A/496/153 : Molecular hydrogen flows along Ori A cloud (Davis+, 2009) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [Orion] 6- 20 A15 --- [NW2007] Source Name (AA-HMMSSs-DMMSS) (1) 22 I1 h RAh Right ascension (J2000) 24- 25 I2 min RAm Right ascension (J2000) 27- 30 F4.1 s RAs Right ascension (J2000) 32 A1 --- DE- Declination sign (J2000) 33 I1 deg DEd Declination (J2000) 35- 36 I2 arcmin DEm Declination (J2000) 38- 39 I2 arcsec DEs Declination (J2000) 41- 42 I2 arcsec amaj Aperture semi-major axis 44- 45 I2 arcsec bmaj Aperture semi-minor axis 47- 51 F5.1 Jy P850 Peak flux SCUBA 850um (in Jy/beam) 53- 58 F6.2 Jy I850 Integrated flux SCUBA 850um (in Jy/beam) 60- 64 F5.1 Jy P450 ?=- Peak flux SCUBA 450um (in Jy/beam) (2) 66- 71 F6.1 Jy I450 ?=- Integrated flux SCUBA 450um (in Jy/beam) (2) 73- 77 F5.1 Msun Mass Mass calculated from the 850um integrated flux density 79 A1 --- YSO [Y/N] Indicates the presence of a Class I protostar, detected using IRAC
Note (1): The source name is based on the region that it is found in and its J2000 coordinates. OrionAN* and OrionAS* for Ori A North/South, OrionBN* and OrionBS* for Ori B North/South. Note (2): No value when the source is undetected at 5σ in the 450um data smoothed to a FWHM of 14arcsec.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Mar-2011
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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