Astrometry of Galactic star-forming region IRAS 20126+4104 with VERA

被引：9
|
作者：
Nagayama, Takumi [1 ]
Omodaka, Toshihiro [2 ]
Handa, Toshihiro [2 ]
Burns, Ross A. [2 ]
Chibueze, James O. [3 ]
Kobayashi, Hideyuki [1 ]
Sato, Katsuhisa [4 ]
Ueno, Yuji [4 ]
Shizugami, Makoto [4 ]
机构：
[1] Natl Astron Observ Japan, Mizusawa VLBI Observ, Mitaka, Tokyo 1818588, Japan
[2] Kagoshima Univ, Grad Sch Sci & Engn, Kagoshima, Kagoshima 8900065, Japan
[3] Natl Astron Observ Japan, East Asian ALMA Reg Ctr, Mitaka, Tokyo 1818588, Japan
[4] Natl Astron Observ Japan, Mizusawa VLBI Observ, Mizusawa, Iwate 0230861, Japan
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2015年 / 67卷 / 04期
关键词：
astrometry; parallaxes; techniques: high angular resolution; PROPER MOTION; MILKY-WAY; TRIGONOMETRIC PARALLAXES; FUNDAMENTAL PARAMETERS; CONSTANTS; DISTANCE; GALAXY; ROTATION; MASERS;
D O I：
10.1093/pasj/psu133
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We performed astrometric observations of IRAS 20126+4104 with the very long baseline interferometry (VLBI) Exploration of Radio Astrometry (VERA). The measured parallax was 0.750 +/- 0.092 mas, corresponding to a distance of 1.33(-0.15)(+0.19) kpc. We found that IRAS 20126+4104 is located approximately 100 pc above the Galactic plane and moving further away from the Galactic plane with a velocity of approximately 16 +/- 4 kms(-1). This motion would be associated by common origin with the expanding motions of OB type-stars in the Cygnus superbubble.
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页数：8
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