J/MNRAS/415/893 AMI-LA 16 GHz sources in Perseus region (Scaife+, 2011)
AMI-LA radio continuum observations of Spitzer c2d small clouds and cores:
Perseus region.
Scaife A.M.M., Hatchell J., Davies M., Franzen T.M.O., Grainge K.J.B.,
Hobson M.P., Hurley-Walker N., Lasenby A.N., Olamaie M., Perrott Y.C.,
Pooley G.G., Rodriguez-Gonzalvez C., Saunders R.D.E., Schammel M.P.,
Scott P.F., Shimwell T., Titterington D., Waldram E.
<Mon. Not. R. Astron. Soc., 415, 893-910 (2011)>
=2011MNRAS.415..893S 2011MNRAS.415..893S
ADC_Keywords: YSOs ; Radio sources ; Interstellar medium
Keywords: radiation mechanisms: general - stars: formation - ISM: clouds -
ISM: general
Abstract:
We present deep radio continuum observations of the cores identified
as deeply embedded young stellar objects in the Perseus molecular
cloud by the Spitzer c2d programme at a wavelength of 1.8cm with the
Arcminute Microkelvin Imager Large Array (AMI-LA). We detect 72% of
Class 0 objects from this sample and 31% of Class I objects. No
starless cores are detected. We use the flux densities measured from
these data to improve constraints on the correlations between radio
luminosity and bolometric luminosity, infrared luminosity and, where
measured, outflow force. We discuss the differing behaviour of these
objects as a function of protostellar class and investigate the
differences in radio emission as a function of core mass. Two of four
possible very low luminosity objects (VeLLOs) are detected at 1.8cm.
Description:
Radio flux densities at a wavelength of 1.8cm for 51 sources within
small clouds and cores in the Persues region from the Spitzer c2d
programme are presented. These are interferometric observations with a
resolution of approximately 25 arcsec. All sources are detected at
greater than 5 sigma unless otherwise noted.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea.dat 86 65 Source positions and flux densities
(tables A1-A2 of the paper)
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See also:
J/MNRAS/410/2662 : AMI 1.8cm observations in c2d small clouds (Scaife+, 2011)
Byte-by-byte Description of file: tablea.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Source Source identification number
4- 12 A9 --- Field Field designation
14- 15 I2 h RAh Right Ascension J2000 (hours)
17- 18 I2 min RAm Right Ascension J2000 (minutes)
20- 23 F4.1 s RAs Right Ascension J2000 (seconds)
25 A1 --- DE- Declination J2000 (sign)
26- 27 I2 deg DEd Declination J2000 (degrees)
29- 30 I2 arcmin DEm Declination J2000 (minutes)
32- 35 F4.1 arcsec DEs Declination J2000 (seconds)
37- 40 I4 uJy Speak Peak flux density at 16GHz (in µJy/beam)
42- 45 I4 uJy Sint Integrated flux density at 16GHz
47- 49 I3 uJy e_Sint Error on integrated flux density
51- 63 A13 --- Assoc Association
65- 86 A22 --- Note Notes on sources
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Acknowledgements:
Anna Scaife, ascaife(at)cp.dias.ie
(End) Anna Scaife [DIAS, Ireland], Patricia Vannier [CDS] 22-Aug-2011