Discovery of a Low-Mass Bipolar Molecular Outflow from L1014-IRS with the Submillimeter Array
@article{Bourke2005DiscoveryOA, title={Discovery of a Low-Mass Bipolar Molecular Outflow from L1014-IRS with the Submillimeter Array}, author={Tyler L. Bourke and Antonio Crapsi and Philip C. Myers and Neal J. Evans II and David J. Wilner and Tracy L. Huard and Jes K. J{\o}rgensen and Chadwick H. Young}, journal={The Astrophysical Journal Letters}, year={2005}, volume={633}, pages={L129 - L132} }
Using the Submillimeter Array, we report the discovery of a compact low-mass bipolar molecular outflow from L1014-IRS and confirm its association with the L1014 dense core at 200 pc. Consequently, L1014-IRS is the lowest luminosity (L ~ 0.09 L☉), and perhaps the lowest mass, source known to be driving a bipolar molecular outflow, which is one of the smallest known in size (~500 AU), mass (<10-4 M☉), and energetics (e.g., with a force <10-7 M☉ km s-1 yr-1).
70 Citations
DETECTION OF A BIPOLAR MOLECULAR OUTFLOW DRIVEN BY A CANDIDATE FIRST HYDROSTATIC CORE
- Physics
- 2011
We present new 230 GHz Submillimeter Array observations of the candidate first hydrostatic core Per-Bolo 58. We report the detection of a 1.3 mm continuum source and a bipolar molecular outflow, both…
DIRECT IMAGING OF A COMPACT MOLECULAR OUTFLOW FROM A VERY LOW LUMINOSITY OBJECT: L1521F-IRS
- Physics
- 2013
Studying the physical conditions of very low luminosity objects (VeLLOs; Lbol < 0.1 L☉) is important for understanding the earliest evolutionary stage of protostars and brown dwarfs. We report…
Bipolar molecular outflow of the very low-mass star Par-Lup3-4
- PhysicsAstronomy & Astrophysics
- 2020
Context. Very low-mass stars are known to have jets and outflows, which is indicative of a scaled-down version of low-mass star formation. However, only very few outflows in very low-mass sources are…
L1448 IRS2E: A CANDIDATE FIRST HYDROSTATIC CORE
- Physics
- 2010
Intermediate between the prestellar and Class 0 protostellar phases, the first core is a quasi-equilibrium hydrostatic object with a short lifetime and an extremely low luminosity. Recent…
EARLY STAR-FORMING PROCESSES IN DENSE MOLECULAR CLOUD L328; IDENTIFICATION OF L328-IRS AS A PROTO-BROWN DWARF
- Physics
- 2013
This paper presents the results of millimeter to sub-millimeter observations of CO, HCN, N2H+, and HCO+ lines in the dense molecular cloud L328, which harbors L328-IRS, a Very Low Luminosity Object…
MOLECULAR OUTFLOWS IN THE SUBSTELLAR DOMAIN: MILLIMETER OBSERVATIONS OF YOUNG VERY LOW MASS OBJECTS IN TAURUS AND ρ OPHIUCHI
- Physics
- 2011
We report here our search for molecular outflows from young very low mass stars and brown dwarfs in Taurus and ρ Ophiuchi. Using the Submillimeter Array and the Combined Array for Research in…
Confirmation of the VeLLO L1148−IRS: star formation at very low (column) density★
- Physics
- 2011
We report the detection of a compact (∼5 arcsec; about 1800 au projected size) CO outflow from L1148−IRS. This confirms that this Spitzer source is physically associated with the nearby (≈325 pc)…
CHARACTERIZATION OF MOLECULAR OUTFLOWS IN THE SUBSTELLAR DOMAIN
- Physics, Geology
- 2014
We report here our latest search for molecular outflows from young brown dwarfs and very low-mass stars in nearby star-forming regions. We have observed three sources in Taurus with the Submillimeter…
The Detection and Characterization of Centimeter Radio Continuum Emission from the Low-Mass Protostar L1014-IRS
- Physics
- 2007
Observations by the Cores to Disk Legacy Team with the Spitzer Space Telescope have identified a low-luminosity, mid-infrared source within the dense core, Lynds 1014, which was previously thought to…
THE SPITZER c2d SURVEY OF NEARBY DENSE CORES. IX. DISCOVERY OF A VERY LOW LUMINOSITY OBJECT DRIVING A MOLECULAR OUTFLOW IN THE DENSE CORE L673-7
- Physics
- 2010
We present new infrared, submillimeter, and millimeter observations of the dense core L673-7 and report the discovery of a low-luminosity, embedded Class 0 protostar driving a molecular outflow.…
References
SHOWING 1-10 OF 18 REFERENCES
A search for molecular outflows toward the pre-main-sequence objects
- Physics
- 1988
A search for molecular outflows has been conducted toward a sample of 71 young stellar objects dominated by optically selected pre-main-sequence stars. Molecular outflows ranging in size from 0.07 to…
Dynamical and chemical properties of the "starless" core L1014
- Physics
- 2005
Spitzer Space Telescope observations of a point-like source, L1014-IRS, close to the dust peak of the low-mass dense core L1014, have raised questions about its starless nature. These show the…
Discovery of an Extremely Young Accreting Protostar in Taurus
- Physics
- 1999
We report the discovery of a new, very young accreting class 0 protostar in the southern part of the Taurus molecular cloud. This object, designated by IRAM 04191+1522, coincides with a cold (T~12 K)…
Outflows in dark clouds: their role in protostellar evolution
- Physics
- 1991
We present the results of a 12 CO J=2−1 survey of a sample of IRAS sources representative of low-mass young (≤2.5×10 5 yr) stellar objects embedded in dark molecular clouds. Several new outflows were…
A “Starless” Core that Isn't: Detection of a Source in the L1014 Dense Core with the Spitzer Space Telescope
- Physics, Geology
- 2004
We present observations of L1014, a dense core in the Cygnus region previously thought to be starless, but data from the Spitzer Space Telescope show the presence of an embedded source. We propose a…
A study of high velocity molecular outflows with an up-to-date sample
- Physics
- 2004
A statistical study of the properties of molecular outflows is performed based on an up-to-date sample. 391 outflows were identified in published articles or preprints before February 28, 2003. The…
The high-velocity molecular flows near young stellar objects
- Physics
- 1983
The results of a search for high-velocity molecular gas associated with star forming molecular clouds are reported. Faint, high-velocity (..delta..V> or approx. =30 km s/sup -1/) /sup 12/CO emission…
Completion of a SCUBA Survey of Lynds Dark Clouds and Implications for Low-mass Star Formation
- Physics
- 2002
We have carried out a survey of optically selected dark clouds using the bolometer array SCUBA on the James Clerk Maxwell Telescope at λ = 850 μm. The survey covers a total of 0.5 deg2 and is…
Molecular line study of the very young protostar IRAM 04191 in Taurus: Infall, rotation, and outflow
- Physics
- 2002
We present a detailed millimeter line study of the circumstellar environment of the low-luminosity Class 0 protostar IRAM 04191+1522 in the Taurus molecular cloud. New line observations demonstrate…
A SCUBA survey of compact dark Lynds clouds
- Physics
- 2001
We present the first results of a submillimetre continuum survey of Lynds dark clouds. Submillimetre surveys of star-forming regions are an important tool with which to obtain representative samples…