High resolution observations of disks around protostellar sources with the Nobeyama Millimeter Array

  • Nagayoshi Ohashi
  • Masahiko Hayashi
Part I: Disks—Observation
Part of the Lecture Notes in Physics book series (LNP, volume 465)


We present high spatial resolution observations of disks around young stellar objects in Taurus with the Nobeyama Millimeter Array. A survey of circumstellar disks at 3 mm shows that the 3 mm continuum emission tends to be weaker for embedded sources than for visible T Tauri stars, which is consistent with our previous interpretation of protoplanetary disk formation. The CS gas around L1489 and IRAS 04365+2535 show disk-like structures of ∼1000 AU in radius. A 13CO observation of HL Tau indicates direct evidence of dynamical infalling motion. We discuss the formation of a centrifugally supported viscous accretion disk around HL Tau.


Protoplanetary Disk Tauri Star Circumstellar Disk Young Stellar Object IRAS Source 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Nagayoshi Ohashi
    • 1
    • 3
  • Masahiko Hayashi
    • 2
  1. 1.Nobeyama Radio ObservatoryNational Astronomical ObservatoryJapan
  2. 2.SUBARU project officeJapan
  3. 3.Harvard-Smithsonian Center for AstrophysicsCambridgeUSA

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