Astrometry of H$ 2$O masers in the massive star-forming region IRAS 06061 2151 with VERA - Astrophysics > Astrophysics of GalaxiesReport as inadecuate




Astrometry of H$ 2$O masers in the massive star-forming region IRAS 06061 2151 with VERA - Astrophysics > Astrophysics of Galaxies - Download this document for free, or read online. Document in PDF available to download.

Abstract: We measured the trigonometric annual parallax of H$ 2$O maser sourceassociated with the massive star-forming regions IRAS 06061+2151 with VERA. Theannual parallax of $0.496\pm0.031$ mas corresponding to a distance of$2.02^{+0.13} {-0.12}$ kpc was obtained by 10 epochs of observations from 2007October to 2009 September. This distance was obtained with a higher accuracythan the photometric distance previously measured, and places IRAS 06061+2151in the Perseus spiral arm. We found that IRAS 06061+2151 also has a peculiarmotion of larger than 15 km s$^{-1}$ counter to the Galactic rotation. That issimilar to five sources in the Perseus spiral arm, whose parallaxes and propermotions have already been measured with higher accuracy. Moreover, thesesources move at on average 27 km s$^{-1}$ toward the Galactic center andcounter to the Galactic rotation.



Author: Kotaro Niinuma 1, Takumi Nagayama 1, Tomoya Hirota 1 and 2, Mareki Honma 1 and 2, Kazuhito Motogi 6, Akiharu Nakagawa 5, Tomoharu

Source: https://arxiv.org/







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