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

作者：Nagayama Takumi^*; Omodaka Toshihiro; Handa Toshihiro; Burns Ross A; Chibueze James O; Kobayashi Hideyuki; Sato Katsuhisa; Ueno Yuji; Shizugami Makoto

来源：Publications of the Astronomical Society of Japan, 2015, 67(4): 66.

DOI：10.1093/pasj/psu133

• astrometry
• parallaxes
• techniques: high angular resolution

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.

• 出版日期2015-8
• 单位中国科学院国家天文台