Resolution of Structure in the Protostellar Source IRAS 16293-2422

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