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Search for SiO masers in nearby Miras pulsating in the first overtone mode
Yoshifusa Ita, Shuji Deguchi, Noriyuki Matsunaga +1
We studied the period-K magnitude (P-K) relations of nearby Mira and Mira-like variables with relatively good Hipparcos parallaxes. They form at least two prominent sequences on th…
Detection of SiO Maser Emission in V838 Mon
Shuji Deguchi, Noriyuki Matsunaga, Hinako Fukushi
We report on the detection of 43 GHz SiO maser emission in V838 Mon, a prototype of a new class of eruptive variables, in which a red supergiant was formed after the nova-like erup…
SiO Maser Sources toward Globular Clusters
Noriyuki Matsunaga, Shuji Deguchi, Yoshifusa Ita +2
We report on the detection of SiO masers in Asymptotic Giant Branch variables toward bulge/disk globular clusters. In five out of six cases, the radial velocities are compatible wi…
A Distinct Structure Inside the Galactic Bar
Shogo Nishiyama, Tetsuya Nagata, Daisuke Baba +16
We present the result of a near-infrared (J H Ks) survey along the Galactic plane, -10.5deg < l < +10.5deg and b=+1.0deg, with the IRSF 1.4m telescope and the SIRIUS camera. Ks vs.…