Multiplicity of the Protostar Serpens SMM 1 Revealed by Millimeter Imaging

Abstract

The Serpens SMM 1 region was observed in the 6.9 mm continuum with an angular resolution of about 0.6 arcsec. Two sources were found to have steep positive spectra suggesting emission from dust. The stronger one, SMM 1a, is the driving source of the bipolar jet known previously, and the mass of the dense molecular gas traced by the millimeter continuum is about 8 solar mass. The newly found source, SMM 1b, positionally coincides with the brightest mid-IR source in this region, which implies that SMM 1b is yet another young stellar object. SMM 1b seems to be less deeply embedded than SMM 1a. SMM 1 is probably a protobinary system with a projected separation of 500 AU.

References in corpus (3)

• Comparing Star Formation on Large Scales in the c2d Legacy Clouds: Bolocam 1.1 mm Dust Continuum Surveys of Serpens, Perseus, and Ophiuchus
• The Spitzer c2d Survey of Large, Nearby, Insterstellar Clouds. IX. The Serpens YSO Population As Observed With IRAC and MIPS
• A Combined Spitzer and Chandra Survey of Young Stellar Objects in the Serpens Cloud Core

Cited by in corpus (12)

• Dust masses of young disks: constraining the initial solid reservoir for planet formation
• The VLA Nascent Disk And Multiplicity Survey of Perseus Protostars (VANDAM). IV. Free-Free Emission from Protostars: Links to Infrared Properties, Outflow Tracers, and Protostellar Disk Masses
• ALMA observations of dust polarization and molecular line emission from the Class 0 protostellar source Serpens SMM1
• Disk and Envelope Structure in Class 0 Protostars: II. High Resolution Millimeter Mapping of the Serpens Sample
• HiRes Deconvolved Spitzer Images of 89 Protostellar Jets and Outflows: New Data on Evolution of Outflow Morphology
• Chemical and kinematic structure of extremely high-velocity molecular jets in the Serpens Main star-forming region
• Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
• An extremely high velocity molecular jet surrounded by an ionized cavity in the protostellar source Serpens SMM1
• The prebiotic molecular inventory of Serpens SMM1 I. An investigation of the isomers CH${}_3$NCO and HOCH${}_2$CN
• JWST Observations of Young protoStars (JOYS). Overview of gaseous molecular emission and absorption in low-mass protostars
• Atomic jet from SMM1 (FIRS1) in Serpens uncovers non-coeval binary companion
• AMI radio continuum observations of young stellar objects with known outflows