Jets from young stars and brown dwarfs

Abstract

The protostellar outflow mechanism operates for a significant fraction of the pre-main sequence phase of a solar mass star and is thought to have a key role in star and perhaps even planet formation. This energetic mechanism manifests itself in several different forms and on many scales. Thus outflow activity can be probed in numerous different regimes from radio to X-ray wavelengths. Recent discoveries have shown that it is not only solar mass stars that launch outflows during their formation but also the sub-stellar brown dwarfs. In this article what is currently known about jets from young stars is summarised, including an outline of why it is important to study jets. The second part of this article is dedicated to jets from young brown dwarfs. While only a small number of brown dwarf outflows have been investigated to date, interesting properties have been observed. Here observations of brown dwarf outflows are described and what is currently known of their properties compared to low mass protostellar outflows.

Astronomische Nachrichten, Special Issue: Reviews in Modern Astrononmy

References in corpus (19)

• Which jet launching mechanism(s) in TTauri stars?
• A resolved outflow of matter from a Brown Dwarf
• First Confirmed Detection of a Bipolar Molecular Outflow from a Young Brown Dwarf
• Paschen beta emission as a tracer of outflow activity from T-Tauri stars, as compared to Optical Forbidden emission
• Classical T Tauri-like Outflow Activity in the Brown Dwarf Mass Regime
• The Star Formation Rate of Molecular Clouds
• Variable accretion and outflow in young brown dwarfs
• The First X-shooter Observations of Jets from Young Stars
• Sub-arcsecond [FeII] spectro-imaging of the DG Tau jet: Periodic bubbles and a dusty disk wind?
• OTS44: Disk and accretion at the planetary border
• The 2008 Outburst in the Young Stellar System Z CMa: The First Detection of Twin Jets
• Spatially Resolved Observations of the Bipolar Optical Outflow from the Brown Dwarf 2MASSJ12073347-3932540
• Parsec-Scale Herbig-Haro Outflows from Intermediate Mass Stars
• Mass loss at the lowest stellar masses
• A Massive Protostar Forming by Ordered Collapse of a Dense, Massive Core
• The bipolar outflow and disk of the brown dwarf ISO217
• Uncovering the Outflow Driven by the Brown Dwarf LS-RCr A1: H-alpha as a Tracer of Outflow Activity in Brown Dwarfs
• A molecular outflow driven by the brown dwarf binary FU Tau
• Disks, accretion and outflows of brown dwarfs

Cited by in corpus (7)

• A MUSE Spectro-imaging Study of the Th 28 Jet: Precession in the Inner Jet
• The Near-Infrared Outflow and Cavity of the proto-Brown Dwarf Candidate ISO-Oph 200
• A spectacular jet from the bright 244-440 Orion proplyd: the MUSE NFM view
• UVES Spectroscopy of T Chamaeleontis: Line Variability, Mass Accretion Rate and Spectro-astrometric Analysis
• A kinematical study of the launching region of the blueshifted HH 46/47 outflow with SINFONI K-band observations
• The Morphology of the HD 163296 jet as a window on its planetary system
• Discovery of a jet from the single HAe/Be star HD 100546