Resolution of structure in the protostellar source IRAS 16293-2422

Journal Article · Mon Dec 01 04:00:00 EST 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/184801· OSTI ID:6581314

Mundy, L G; Myers, S T; Wilking, B A

Emission from the cold, protostellar source IRAS 16293 - 2422 has been mapped in the 2.7 mm continuum and (C-13)O J = 1-0 line with resolutions of 4 arcsec x 6 arcsec and 5 arcsec x 16 arcsec, respectively. The line and continuum emission arise from a disklike structure whose major axis lies roughly perpendicular to a collimated outflow of molecular gas and the local magnetic field direction. The continuum spectrum of the dust is well fitted by a lambda exp -1.5 + or -0.5 emissivity law and a dust temperature of 41 + or - 2 K. The fits imply a total luminosity of 27 + or - 4 solar luminosities and a mass of gas and dust in the range 0.9-6 solar masses. The (C-13)O kinematics suggests that the region may be rotating. 23 references.

• Research Organization: Owens Valley Radio Observatory, Pasadena, CA; Missouri Univ., Saint Louis
• OSTI ID: 6581314
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 311; ISSN ASJOA
• 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
COSMIC DUST
COSMIC GASES
COSMIC RADIO SOURCES
DUSTS
EMISSION SPECTRA
FLUIDS
GASES
INFRARED SPECTRA
MAGNETIC FIELDS
MAIN SEQUENCE STARS
MASS TRANSFER
MORPHOLOGY
PROTOSTARS
SPECTRA
STARS