ASTE Submillimeter Observations of a Young Stellar Object Condensation in Cederblad 110

Abstract

We present results of submillimeter observations of a low-mass young stellar objects (YSOs) condensation in the Cederblad 110 region of the Chamaeleon I dark cloud with Atacama Submillimeter Telescope Experiment. Our HCO+(J=4-3) map reveals a dense molecular gas with an extent of ~ 0.1 pc, which is a complex of two envelopes associated with class I sources Ced110 IRS4 and IRS11 and a very young object Cha-MMS1. The other two class I sources in this region, IRS6 and NIR89, are located outside the clump and have no extended HCO+ emission. HCO+ abundance is calculated to be 2.6 x 10^{-10} for MMS1 and 3.4 x 10^{-9} for IRS4, which are comparable to the reported value for other young sources. Bipolar outflows from IRS4 and IRS6 are detected in our 12CO(J=3-2) map. The outflow from IRS4 seems to collide with Cha-MMS1. The outflow has enough momentum to affect gas motion in MMS1, although no sign has been detected to indicate that a triggered star formation has occurred.

30pages, 7 figures, Accepted for publication in ApJ

Cited by in corpus (13)

• Spitzer Infrared Spectrograph survey of young stars in the Chamaeleon I star-forming region
• APEX-CHAMP+ high-J CO observations of low-mass young stellar objects: II. Distribution and origin of warm molecular gas
• Dense and warm molecular gas in the envelopes and outflows of southern low-mass protostars
• The dynamical state of the First Hydrostatic Core Candidate Cha-MMS1
• Organic chemistry of low-mass star-forming cores I: 7 mm spectroscopy of Chamaeleon MMS1
• ALMA observations of envelopes around first hydrostatic core candidates
• G30.79~FIR~10: A gravitationally bound infalling high-Mass star forming clump
• Early Planet Formation in Embedded Disks (eDisk) V: Possible Annular Substructure in a Circumstellar Disk in the Ced110 IRS4 System
• A molecular outflow evidencing star formation activity in the vicinity of the HII region G034.8-0.7 and the SNR W44
• High-resolution ammonia mapping of the very young protostellar core Chamaeleon-MMS1
• Outflowing activity in the UCHII region G045.47+0.05
• The dynamically young outflow of the Class 0 protostar Cha-MMS1
• Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35