5 Result(s)
within
Alan T. Tokunaga
Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)
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Chapter and Conference Paper
Near-Infrared AO Spectroscopy of Edge-On Protoplanetary Disks with Subaru IRCS
We carried out near infrared (1.4–4.2 μm) AO imaging and spectroscopy of two edge-on protoplanetary disks; HK TauB and HV TauC located in Taurus molecular cloud. We found a deep H2O Ice absorption (τ~ 1.1, 1.3) f...
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Chapter and Conference Paper
The Structure of the Young Stellar Outflows Revealed by High Angular Resolution [Fe II] λ 1.644 μ m Spectroscopy
We introduce results of the [Fe ii] λ1.644 μm spectroscopic observations toward the outflows emanating from L1551 IRS 5, DG Tau, HL Tau, and RW Aur. We resolved the region within ~±140 AU (< ±1′′) from their driv...
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Article
The Structure of Young Stellar Jets and Winds Revealed by High Resolution [Fe II] λ1.644μm Line Observations
We present high angular resolution spectra taken along the jets from L1551 IRS 5 and DG Tau obtained with the Subaru Telescope. The position-velocity diagrams of the [Fe II] λ 1.644 μmemission line revealed re...
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Chapter and Conference Paper
Bright Near-Infrared Sources Within 1° of the Galactic Center
A near-infrared survey has been conducted of 0.55 square degrees around the Galactic center with the 1 m telescope of Siding Spring Observatory, Australia. From the detected sources, 39 objects which are brigh...
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Article
A faint object spectrometer for the infrared
A cryogenic astronomical spectrometer for the NASA Infrared Telescope Facility is described. This spectrometer will employ an array of at least 20 detectors and provide a resolving power of 100 to 1500 at 1–5 ...
