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Physics x Interstellar Medium x Astrometry and Celestial Mechanics x clear all

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Ab Initio Calculations for Detectable New Isomers of Interstellar Carbon-Chain Radicals C<sub>n</sub>(<i>n</i>=2–8)

Junko Takahashi.

in Publications of the Astronomical Society of Japan

June 2000; p ublished online June 2000 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Interstellar Medium. 0 words.

Detectable new isomers of interstellar carbon-chain (linear) radicals, Cn(n=2–8), were investigated theoretically based on ab initio quantum chemical calculations. The molecular...

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Absolute Proper Motions of H<sub>2</sub>O Masers Away from the Galactic Plane Measured with VERA in the “Superbubble” Region NGC 281

Mayumi Sato, Tomoya Hirota, Mareki Honma, Hideyuki Kobayashi, Tetsuo Sasao, Takeshi Bushimata, Yoon Kyung Choi, Hiroshi Imai, Kenzaburo Iwadate, Takaaki Jike, Seiji Kameno, Osamu Kameya, Ryuichi Kamohara, Yukitoshi Kan-ya, Noriyuki Kawaguchi, Masachika Kijima, Mi Kyoung Kim, Seisuke Kuji, Tomoharu Kurayama, Seiji Manabe, Kenta Maruyama, Makoto Matsui, Naoko Matsumoto, Takeshi Miyaji, Takumi Nagayama, Akiharu Nakagawa, Kayoko Nakamura, Chung Sik Oh, Toshihiro Omodaka, Tomoaki Oyama, Satoshi Sakai, Katsuhisa Sato, Katsunori M. Shibata, Motonobu Shintani, Yoshiaki Tamura, Miyuki Tsushima and Kazuyoshi Yamashita.

in Publications of the Astronomical Society of Japan

August 2007; p ublished online August 2007 .

Journal Article. Subjects: Galaxies; Astrometry and Celestial Mechanics; Interstellar Medium. 6774 words.

We report on absolute proper-motion measurements of an H2O maser source in the NGC 281 West molecular cloud, which is located [math] 320 pc above the Galactic plane and is associated with...

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Accelerating a water maser face-on jet from a high mass young stellar object

Kazuhito Motogi, Kazuo Sorai, Mareki Honma, Tomoya Hirota, Kazuya Hachisuka, Kotaro Niinuma, Koichiro Sugiyama, Yoshinori Yonekura and Kenta Fujisawa.

in Publications of the Astronomical Society of Japan

October 2016; p ublished online February 2015 .

Journal Article. Subjects: Interstellar Medium; Astrometry and Celestial Mechanics; Stars. 7969 words.

We report on long-term single-dish and VLBI monitoring for intermittent flare activities of a dominant blue-shifted H2O maser associated with a southern high mass young stellar object,...

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Annual Parallax Measurements of an Infrared Dark Cloud, MSXDC G034.43+00.24 with VERA

Tomoharu Kurayama, Akiharu Nakagawa, Satoko Sawada-Satoh, Katsuhisa Sato, Mareki Honma, Kazuyoshi Sunada, Tomoya Hirota and Hiroshi Imai.

in Publications of the Astronomical Society of Japan

June 2011; p ublished online June 2011 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Astronomical Instrumentation, Methods, and Techniques; Stars; Interstellar Medium. 8384 words.

We have measured the annual parallax of the H[math]O maser source associated with an infrared dark cloud, MSXDC G034.43[math]00.24, from observations with VERA (VLBI Exploration of Radio...

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Astrometry of 6.7 GHz Methanol Maser toward W 3(OH) with Japanese VLBI Network

Naoko Matsumoto, Mareki Honma, Yasuko Isono, Hideki Ujihara, Kimihiro Kimura, Kouhei Matsumoto, Satoko Sawada-Satoh, Akihiro Doi, Kenta Fujisawa and Yuji Ueno.

in Publications of the Astronomical Society of Japan

December 2011; p ublished online December 2011 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Stars; Interstellar Medium. 7969 words.

We present the results of multiepoch VLBI observations for a 6.7 GHz methanol maser toward the UC H II region of W 3(OH) with Japanese VLBI Network (JVN). Based on phase-referencing VLBI...

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Astrometry of Galactic Star-Forming Region Onsala 1 with VERA: Estimation of Angular Velocity of Galactic Rotation at the Sun

Takumi Nagayama, Toshihiro Omodaka, Akiharu Nakagawa, Toshihiro Handa, Mareki Honma, Hideyuki Kobayashi, Noriyuki Kawaguchi and Takeshi Miyaji.

in Publications of the Astronomical Society of Japan

February 2011; p ublished online February 2011 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Interstellar Medium. 4977 words.

We conducted the astrometry of H[math]O masers in the Galactic star-forming region Onsala 1 (ON 1) with the VLBI Exploration of Radio Astrometry (VERA). We measured a trigonometric parallax...

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Astrometry of Galactic Star-Forming Region Sharpless 269 with VERA: Parallax Measurements and Constraint on Outer Rotation Curve

Mareki Honma, Takeshi Bushimata, Yoon Kyung Choi, Tomoya Hirota, Hiroshi Imai, Kenzaburo Iwadate, Takaaki Jike, Osamu Kameya, Ryuichi Kamohara, Yukitoshi Kan-ya, Noriyuki Kawaguchi, Masachika Kijima, Hideyuki Kobayashi, Seisuke Kuji, Tomoharu Kurayama, Seiji Manabe, Takeshi Miyaji, Takumi Nagayama, Akiharu Nakagawa, Chung Sik Oh, Toshihiro Omodaka, Tomoaki Oyama, Satoshi Sakai, Katsuhisa Sato, Tetsuo Sasao, Katsunori M. Shibata, Motonobu Shintani, Hiroshi Suda, Yoshiaki Tamura, Miyuki Tsushima and Kazuyoshi Yamashita.

in Publications of the Astronomical Society of Japan

October 2007; p ublished online October 2007 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Interstellar Medium. 4900 words.

We have performed high-precision astrometry of H[math]O maser sources in the Galactic star-forming region Sharpless 269 (S269) with VERA. We successfully detected a trigonometric parallax...

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Astrometry of H<sub>2</sub>O Masers in Nearby Star-Forming Regions with VERA II SVS 13 in NGC 1333

Tomoya Hirota, Takeshi Bushimata, Yoon Kyung Choi, Mareki Honma, Hiroshi Imai, Kenzaburo Iwadate, Takaaki Jike, Osamu Kameya, Ryuichi Kamohara, Yukitoshi Kan-Ya, Noriyuki Kawaguchi, Masachika Kijima, Hideyuki Kobayashi, Seisuke Kuji, Tomoharu Kurayama, Seiji Manabe, Takeshi Miyaji, Takumi Nagayama, Akiharu Nakagawa, Chung Sik Oh, Toshihiro Omodaka, Tomoaki Oyama, Satoshi Sakai, Tetsuo Sasao, Katsuhisa Sato, Katsunori M. Shibata, Yoshiaki Tamura and Kazuyoshi Yamashita.

in Publications of the Astronomical Society of Japan

February 2008; p ublished online February 2008 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Interstellar Medium; Stars. 5865 words.

We report on the results of multiepoch very long baseline interferometry (VLBI) observations with VERA (VLBI Exploration of Radio Astrometry) of the 22 GHz H[math]O masers associated with...

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Astrometry of H<sub>2</sub>O Masers in Nearby Star-Forming Regions with VERA III. IRAS22198+6336 in Lynds1204G

Tomoya Hirota, Kazuma Ando, Takeshi Bushimata, Yoon Kyung Choi, Mareki Honma, Hiroshi Imai, Kenzaburo Iwadate, Takaaki Jike, Seiji Kameno, Osamu Kameya, Ryuichi Kamohara, Yukitoshi Kan-ya, Noriyuki Kawaguchi, Masachika Kijima, Mi Kyoung Kim, Hideyuki Kobayashi, Seisuke Kuji, Tomoharu Kurayama, Seiji Manabe, Makoto Matsui, Naoko Matsumoto, Takeshi Miyaji, Atsushi Miyazaki, Takumi Nagayama, Akiharu Nakagawa, Daichi Namikawa, Daisuke Nyu, Chung Sik Oh, Toshihiro Omodaka, Tomoaki Oyama, Satoshi Sakai, Tetsuo Sasao, Katsuhisa Sato, Mayumi Sato, Katsunori M. Shibata, Yoshiaki Tamura, Kosuke Ueda and Kazuyoshi Yamashita.

in Publications of the Astronomical Society of Japan

October 2008; p ublished online October 2008 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Stars; Interstellar Medium. 9303 words.

We present results of multi-epoch VLBI observations with VERA (VLBI Exploration of Radio Astrometry) of the 22GHz H[math]O masers associated with a young stellar object (YSO)...

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Astrometry of H<sub>2</sub>O Masers in the Massive Star-Forming Region IRAS 06061+2151 with VERA

Kotaro Niinuma, Takumi Nagayama, Tomoya Hirota, Mareki Honma, Kazuhito Motogi, Akiharu Nakagawa, Tomoharu Kurayama, Yukitoshi Kan-Ya, Noriyuki Kawaguchi, Hideyuki Kobayashi and Yuji Ueno.

in Publications of the Astronomical Society of Japan

February 2011; p ublished online February 2011 .

Journal Article. Subjects: Astrometry and Celestial Mechanics; Astronomical Instrumentation, Methods, and Techniques; Interstellar Medium. 5089 words.

We measured the trigonometric annual parallax of an H[math]O maser source associated with the massive star-forming region IRAS 06061[math]2151 with VERA. The annual parallax of...

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