Episodic outflows from high-mass protostars

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/169896· OSTI ID:5666996

Mitchell, G F; Maillard, J P; Hasegawa, T I ^[1]

---

1. Saint Mary's University, Halifax (Canada) Canada-France-Hawaii Telescope Corp., Waimea, HI (USA) CNRS, Institut d'Astrophysique, Paris (France) Duke University, Durham, NC (USA)

This paper examines the kinematics and physical properties of the outflowing gas from seven luminous deeply embedded young stellar objects or protostars: M8E-IR, GL 490, GL 2591, W3 IRS 5, NGC 7538 IRS 1, NGC 7538 IRS 9, and S140 IRS 1. The outflows are seen as blueshifted absorption features in lines of the fundamental band of CO. The CO lines seen in absorption are compared with CO lines seen in emission at mm wavelengths. New CO J = 2-1 emission-line data are presented for the first five of the sources. 60 refs.

• OSTI ID: 5666996
• Journal Information: Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 371; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COMPARATIVE EVALUATIONS
FLUID FLOW
GAS FLOW
LUMINOSITY
MASS
MASS TRANSFER
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PARTICLE KINEMATICS
PHYSICAL PROPERTIES
PROTOSTARS
SPECTRA
SPECTROSCOPY