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Adaptive Optics Observations of 3 micron Water Ice in Silhouette Disks in the Orion Nebula Cluster and M43

Autor: Terada, Hiroshi, Tokunaga, Alan T., Pyo, Tae-Soo, Minowa, Yosuke, Hayano, Yutaka, Oya, Shin, Watanabe, Makoto, Hattori, Masayuki, Saito, Yoshihiko, Ito, Meguru, Takami, Hideki, Iye, Masanori

We present the near-infrared images and spectra of four silhouette disks in the Orion Nebula Cluster (ONC; M42) and M43 using the Subaru Adaptive Optics system. While d053-717 and d141-1952 show no water ice feature at 3.1 micron, a moderately deep (

Externí odkaz: http://arxiv.org/abs/1210.5772

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Suppresion of Self-Phase Modulation in a Laser Transfer System using Optical Fiber on the Subaru Telescope

Autor: Ito, Meguru, Hayano, Yutaka, Saito, Yoshihiko, Takami, Hideki, Saito, Norihito, Akagawa, Kazuyuki, Iye, Masanori

We are developing the Laser Guide Star Adaptive Optics (LGS/AO188) system for the Subaru Telescope at Mauna Kea, Hawaii. This system utilizes a combination of an all-solid-state mode-locked sum-frequency generation (SFG) laser (1.7-GHz bandwidth, 0.7

Externí odkaz: http://arxiv.org/abs/1202.6082

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SDSS J133401.39+331534.3: A New Subarcsecond Gravitationally Lensed Quasar

Autor: Rusu, Cristian E., Oguri, Masamune, Inada, Naohisa, Kayo, Issha, Iye, Masanori, Hayano, Yutaka, Oya, Shin, Hattori, Masayuki, Saito, Yoshihiko, Ito, Meguru, Minowa, Yosuke, Pyo, Tae-Soo, Terada, Hiroshi, Takami, Hideki, Watanabe, Makoto

The quasar SDSS J133401.39+331534.3 at z = 2.426 is found to be a two-image gravitationally lensed quasar with the image separation of 0.833. The object is first identified as a lensed quasar candidate in the Sloan Digital Sky Survey Quasar Lens Sear

Externí odkaz: http://arxiv.org/abs/1107.1280

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Crystalline Silicate Feature of the Vega-like star HD145263

Autor: Honda, Mitsuhiko, Kataza, Hirokazu, Okamoto, Yoshiko K., Miyata, Takashi, Yamashita, Takuya, Sako, Shigeyuki, Fujiyoshi, Takuya, Ito, Meguru, Okada, Yoko, Sakon, Itsuki, Onaka, Takashi

Publikováno v: Astrophys.J. 610 (2004) L49-52

We have observed the 8-13 $\mu$m spectrum (R$\sim$250) of the Vega-like star candidate HD145263 using Subaru/COMICS. The spectrum of HD145263 shows the broad trapezoidal silicate feature with the shoulders at 9.3 $\mu$m and 11.44 $\mu$m, indicating t

Externí odkaz: http://arxiv.org/abs/astro-ph/0406508

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