Physics of Outflows: the Binary Protostar L1551 IRS5 and its Jets

Abstract

Recent observations of the deeply embedded L1551 IRS5 system permit the detailed examination of the properties of both the stellar binary and the binary jet. For the individual components of the stellar binary, we determine their masses, mass accretion rates, effective temperatures and luminosities. For the atomic wind/jet flow, we determine the mass loss rate, yielding observationally determined values of the ratio of the mass loss to the mass accretion rate, f. For the X-ray emitting region in the northern jet, we have obtained the jet-velocity and derive the extinction and the densities on different spatial scales. Examining the observational evidence within the framework of the x-wind theory leads us to conclude that these models are indeed potentially able to account for the observational data for this deeply embedded source.

25 pages, 7 Postscript figures (3 in colour). Accepted by the Astrophysical Journal (tentatively scheduled issue ApJ 1 February 2005)

References in corpus (4)

• Abundances of Deuterium, Oxygen, and Nitrogen in the Local Interstellar Medium: Overview of First Results from the Far Ultraviolet Spectroscopic Explorer Mission
• A Comprehensive Study of the L1551 IRS 5 Binary System
• Interstellar Deuterium, Nitrogen, and Oxygen Abundances Toward BD +28 4211: Results from the Far Ultraviolet Spectroscopic Explorer
• On the Variation of Deuterium and Oxygen Abundances in the Local Interstellar Medium

Cited by in corpus (20)

• Radio Jets from Young Stellar Objects
• Transition from the Infalling Envelope to the Keplerian Disk around L1551 IRS 5
• Disk Dispersal: Theoretical Understanding and Observational Constraints
• FAUST I. The hot corino at the heart of the prototypical Class I protostar L1551 IRS5
• The discovery of an expanding X-ray source in the HH 154 protostellar jet
• The X-ray puzzle of the L1551 IRS 5 jet
• Massive compact disks around FU Orionis-type young eruptive stars revealed by ALMA
• X-rays from protostellar jets: emission from continuous flows
• Chemical survey of Class I protostars with the IRAM-30m
• Resolved ALMA continuum image of the circumbinary ring and circumstellar disks in the L1551 IRS 5 system
• First Evidence of a Precessing Jet Excavating a Protostellar Envelope
• Dust hot spots at 10 au scales around the Class 0 binary IRAS 16293-2422 A: a departure from the passive irradiation model
• Odin observations of water in molecular outflows and shocks
• HST and spectroscopic observations of the L1551 IRS5 jets (HH154)
• FAUST VII. Detection of A Hot Corino in the Prototypical Warm Carbon-Chain Chemistry Source IRAS 15398-3359
• Evolution of the atomic component in protostellar outflows
• Chemical inventory of the envelope of the Class I protostar L1551 IRS 5
• A high-resolution radio study of the L1551 IRS 5 and L1551 NE jets
• The hot corino-like chemistry of four FUor-like protostars
• X-ray and HeI 1.0830 mu emission from protostellar jets