Interactions between a Bright YSO and the MSX Infrared-Dark Cloud G79.3+0.3: An Early Stage of Triggered Star Formation?

Abstract

Millimeter and mid-infrared observations have been made of the dense clumps of dust and gas and of young stellar objects (YSOs) associated with the bright, compact submillimeter source G79.3+0.3 P1 in the relatively nearby MSX infrared-dark cloud G79.3+0.3. The Gemini mid-infrared observations reported here indicate the presence of three YSOs within the cloud. BIMA 3 mm continuum observations show that the brightest of the YSOs is likely to be a Herbig Ae/Be star. High-angular-resolution molecular-line observations suggest that a wind from this star may be triggering collapse in the adjacent molecular cloud. The submillimeter source G79.3+0.3 P1 itself does not contain infrared sources and may represent an earlier stage of star formation.

18 pages, 4 figures (14 pages of text + tables; Figures 3 and 4 have four parts each) Accepted for publication in ApJ

References in corpus (1)

• SCUBA: A common-user submillimetre camera operating on the James Clerk Maxwell Telescope

Cited by in corpus (25)

• Infrared Dark Clouds: precursors to star clusters
• Ammonia in Infrared Dark Clouds
• A Catalog of MSX Infrared Dark Cloud Candidates
• Methanol masers : Reliable tracers of the early stages of high-mass star formation
• The Earliest Phases of Star Formation (EPoS): A Herschel Key Program - The precursors to high-mass stars and clusters
• Massive Protostars in the Infrared Dark Cloud MSXDC G034.43+00.24
• The early stages of star formation in Infrared Dark Clouds: characterizing the core dust properties
• An Infrared through Radio Study of the Properties and Evolution of IRDC Clumps
• High mass star formation in the infrared dark cloud G11.11-0.12
• NH3 Observations of the Infrared Dark Cloud G28.34+0.06
• SMA observations of Infrared Dark Clouds: A tale of two cores
• The G11.11-0.12 Infrared-Dark Cloud: Anomalous Dust and a Non-Magnetic Isothermal Model
• VLA Observations of the Infrared Dark Cloud G19.30+0.07
• A Systemic Study of 14 Southern Infrared Dark Clouds with the N2H+, HNC, HCO+, and HCN Lines
• The Balloon-Borne Large Aperture Submillimeter Telescope (BLAST) 2005: A 10 deg^2 Survey of Star Formation in Cygnus X
• The Modelling of InfraRed Dark Clouds
• Multiple shells around G79.29+0.46 revealed from near-IR to millimeter data
• Discovery of warm and dense molecular gas surrounding the ring nebula G79.29+0.46
• Ammonia observations in the LBV nebula G79.29+0.46. Discovery of a cold ring and some warm spots
• Kinematic and Thermal Structure at the onset of high-mass star formation
• Isolated starless cores in IRDCs in the Hi-GAL survey
• Maps of Massive Clumps in the Early Stage of Cluster Formation: Two Modes of Cluster Formation, Coeval or Non-Coeval?
• A Luminous Blue Variable Star Interacting with a Nearby Infrared Dark Cloud
• Spitzer's mid-infrared view on an outer Galaxy Infrared Dark Cloud candidate toward NGC 7538
• Massive Young Stellar Objects and Outflow in the Infrared-Dark Cloud G79.3+0.3