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Absorption Line Survey of H3+ toward the Galactic Center Sources II. Eight Infrared Sources within 30 pc of the Galactic Center
Miwa Goto, T. Usuda, T. Nagata +7
Infrared absorption lines of H3+, including the metastable R(3,3)l line, have been observed toward eight bright infrared sources associated with hot and massive stars located in an…
Near-Infrared Extinction in The Coalsack Globule 2
Takahiro Naoi, Motohide Tamura, Tetsuya Nagata +8
We have conducted J, H, and Ks imaging observations for the Coalsack Globule 2 with the SIRIUS infrared camera on the IRSF 1.4 m telescope at SAAO, and determined the color excess…
Sub-Arcsecond Near-Infrared Images of Massive Star Formation Region NGC 6334 V
Jun Hashimoto, Motohide Tamura, Hiroshi Suto +4
We present high spatial resolution (0$\farcs$3) polarimetric images in the and bands and direct images in the and bands of the NGC 6334 V infrared nebulae. The im…
Inner Rim of A Molecular Disk Spatially Resolved in Infrared CO Emission Lines
M. Goto, T. Usuda, C. P. Dullemond +4
We present high-resolution infrared spectroscopy of the Herbig Ae star HD 141569 A in the CO v=2-1 transition. With the angular resolution attained by the adaptive optics system, t…
First Two-Micron Imaging Polarimetry of Beta Pictoris
Motohide Tamura, Misato Fukagawa, Hiroshi Kimura +3
High-resolution K band imaging polarimetry of the beta Pic dust disk has been conducted with adaptive optics and a coronagraph using the Subaru 8.2-m telescope. Polarization of ~10…
Search for H3+ in HD141569A
M. Goto, T. R. Geballe, B. J. McCall +5
A search for H3+ line emission, reported to have been detected toward the young star HD 141569A and possibly originating in a clump of planet-forming gas orbiting the star, has yie…