Outer rotation curve of the Galaxy with VERA. III. Astrometry of IRAS 07427−2400 and test of the density-wave theory | Zendy

Nobuyuki Sakai | Zendy; Hiroyuki Nakanishi | Zendy; Mitsuhiro Matsuo | Zendy; Nagito Koide | Zendy; Daisuke Tezuka | Zendy; Tomoharu Kurayama | Zendy; Katsunori M. Shibata | Zendy; Yuji Ueno | Zendy; Mareki Honma | Zendy

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Outer rotation curve of the Galaxy with VERA. III. Astrometry of IRAS 07427−2400 and test of the density-wave theory

Author(s) -

Nobuyuki Sakai,

Hiroyuki Nakanishi,

Mitsuhiro Matsuo,

Nagito Koide,

Daisuke Tezuka,

Tomoharu Kurayama,

Katsunori M. Shibata,

Yuji Ueno,

Mareki Honma

Publication year - 2015

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/psv049

Subject(s) - astrometry , physics , maser , very long baseline interferometry , spiral galaxy , astrophysics , parallax , astronomy , milky way , stars

We report the trigonometric parallax of IRAS 07427−2400 with VERA to be 0.185 ± 0.027 mas, corresponding to a distance of 5.41$^{+0.92}_{-0.69}\:$kpc. The result is consistent with the previous result of 5.32$^{+0.49}_{-0.42}\:$kpc obtained by Choi et al. (2014, ApJ, 790, 99) within error. To remove the effect of internal maser motions (e.g., random motions), we observed six maser features associa...

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