Journal article

Hubble space telescope observations of the disk and jet of HH 30

CJ Burrows, KR Stapelfeldt, AM Watson, JE Krist, GE Ballester, JT Clarke, D Crisp, JS Gallagher, RE Griffiths, J Jeff Hester, JG Hoessel, JA Holtzman, JR Mould, PA Scowen, JT Trauger, JA Westphal

The Astrophysical Journal | Published : 1996


HH 30 in Taurus has been imaged with the Hubble Space Telescope WFPC2. The images show in reflected light a flared disk with a radius of about 250 AU that obscures the protostar. The disk resembles detailed accretion disk models that constrain its density distribution and show that its inclination is less than 10°. There are bipolar emission-line jets perpendicular to the disk, a very clear demonstration of the standard paradigm for accretion disk and jet systems. However, asymmetries in the light distribution show that the disk has not completely settled into a quasi-equilibrium accretion state, or that some of the observed scattering is from an asymmetric envelope. The emission-line jet it..

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