Dense cores in the L1630 molecular cloud: discovering new protostars with SCUBA
arXiv:astro-ph/0108359 · doi:10.1046/j.1365-8711.2001.04502.x
Abstract
Maps of the 450 micron and 850 micron dust continuum emission from three star-forming condensations within the Lynds 1630 molecular cloud, made with the SCUBA bolometer array, reveal the presence of four new submillimetre sources, each of a few solar masses, two of which are probably Class I, two Class 0, as well as several sources whose existence was previously known. The sources are located in filaments and appear elongated when observed at 450 microns. They likely have dust temperatures in the range 10 to 20 K, in good agreement with previous ammonia temperature estimates. Attempts to fit their structures with power-law and Gaussian density distributions suggest that the central distribution is flatter than expected for a simple singular isothermal sphere. Although the statistics are poor, our results suggest that the ratio of `protostellar core' mass to total virial mass may be similar for both large and small condensations.
10 pages, 9 figures, uses mn.sty
References in corpus (1)
Cited by in corpus (11)
- A Herschel and APEX Census of the Reddest Sources in Orion: Searching for the Youngest Protostars
- SMA Observations of Class 0 Protostars: A High-Angular Resolution Survey of Protostellar Binary Systems
- Which are the youngest protostars? Determining properties of confirmed and candidate Class0 sources by broad-band photometry
- A survey of SiO 5-4 emission towards outflows from low-luminosity protostellar candidates
- X-Ray and Infrared Observations of Embedded Young Stars in L1630
- Dissecting the different components of the modest accretion bursts of the very young protostar HOPS 373
- AMI radio continuum observations of young stellar objects with known outflows
- Carbon Monoxide Depletion in Orion B Molecular Cloud Cores
- ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How do dense core properties affect the multiplicity of protostars?
- Millimeter Imaging of HH 24 MMS: A Misaligned Protobinary System
- The JCMT Transient Survey: Four Year Summary of Monitoring the Submillimeter Variability of Protostars