ALMA and VLA observations of the outflows in IRAS 16293-2422

Abstract

We present ALMA and VLA observations of the molecular and ionized gas at 0.1-0.3 arcsec resolution in the Class 0 protostellar system IRAS 16293-2422. These data clarify the origins of the protostellar outflows from the deeply embedded sources in this complex region. Source A2 is confirmed to be at the origin of the well known large scale north-east--south-west flow. The most recent VLA observations reveal a new ejection from that protostar, demonstrating that it drives an episodic jet. The central compact part of the other known large scale flow in the system, oriented roughly east-west, is well delineated by the CO(6-5) emission imaged with ALMA and is confirmed to be driven from within component A. Finally, a one-sided blueshifted bubble-like outflow structure is detected here for the first time from source B to the north-west of the system. Its very short dynamical timescale (~ 200 yr), low velocity, and moderate collimation support the idea that source B is the youngest object in the system, and possibly one of the youngest protostars known.

Accepted for publication in MNRAS; minor cosmetic changes

References in corpus (5)

• Detection of the simplest sugar, glycolaldehyde, in a solar-type protostar with ALMA
• The first ALMA view of IRAS 16293-2422: Direct detection of infall onto source B and high-resolution kinematics of source A
• The CO Molecular Outflows of IRAS 16293-2422 Probed by the Submillimeter Array
• New Radio Sources and the Composite Structure of Component B in the Very Young Protostellar System IRAS 16293-2422
• A Multiple System of Radio Sources at the Core of the L723 Multipolar Outflow

Cited by in corpus (31)

• The ALMA Protostellar Interferometric Line Survey (PILS): First results from an unbiased submillimeter wavelength line survey of the Class 0 protostellar binary IRAS 16293-2422 with ALMA
• Three-Dimensional Radiation Transfer in Young Stellar Objects
• Spatially Resolved Magnetic Field Structure in the Disk of a T Tauri Star
• Interstellar chemistry of nitrogen hydrides in dark clouds
• Episodic molecular outflow in the very young protostellar cluster Serpens South
• ALMA observations of dust polarization and molecular line emission from the Class 0 protostellar source Serpens SMM1
• Young Stellar Object Variability (YSOVAR): Long Timescale Variations in the Mid-Infrared
• The census of complex organic molecules in the solar type protostar IRAS16293-2422
• Detection of a Magnetized Disk around a Very Young Protostar
• The Gould's Belt Very Large Array Survey I: The Ophiuchus complex
• The Bridge: a transient phenomenon of forming stellar multiples
• ALMA 690 GHz observations of IRAS 16293-2422B: Infall in a highly optically-thick disk
• A revised distance to IRAS 16293$-$2422 from VLBA astrometry of associated water masers
• Survey Observations of a Possible Glycine Precursor, Methanimine (CH${}_2$NH)
• The JCMT Legacy Survey of the Gould Belt: a molecular line study of the Ophiuchus molecular cloud
• History of the solar-type protostar IRAS16293-2422 as told by the cyanopolyynes
• Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. II. IRAS 16293-2422
• SMA observations of the polarized dust emission in solar-type Class 0 protostars: the magnetic field properties at envelope scales
• Tracing the cold and warm physico-chemical structure of deeply embedded protostars: IRAS 16293-2422 versus VLA 1623-2417
• Chemical and Physical Picture of IRAS 16293-2422 Source B at a Sub-arcsecond Scale Studied with ALMA
• The ALMA-PILS survey: Gas dynamics in IRAS 16293$-$2422 and the connection between its two protostars
• On the origin of the molecular outflows in IRAS 16293-2422
• An extremely high velocity molecular jet surrounded by an ionized cavity in the protostellar source Serpens SMM1
• The circumstellar environment around the embedded protostar EC 53
• On the nature of the compact sources in IRAS 16293-2422 seen in at centimeter to sub-millimeter wavelengths
• Dynamical structure of the inner 100 AU of the deeply embedded protostar IRAS 16293-2422
• Origin and kinematics of the eruptive flow from XZ Tau revealed by ALMA
• Detection of 40-48 GHz dust continuum linear polarization towards the Class 0 young stellar object IRAS 16293-2422
• The molecular environment of the solar-type protostar IRAS 16293-2422
• Numerical Simulation of the SVS 13 Micro-Jet and Bow Shock Bubble
• Rotating Motion of the Outflow of IRAS 16293-2422 A1 at its Origin Point near the Protostar