NEAR-INFRARED OBSERVATIONS OF A STAR FORMING REGION IN THE GALACTIC CENTER

우리은하 중심의 별탄생영역 근적외선 관측

  • Pak, Soo-Jong (Dept. of Astronomy and Space Science, Kyung Hee University) ;
  • Lee, Sung-Ho (Satellite Payload Research Group, KASI)
  • 박수종 (경희대학교 우주과학과) ;
  • 이성호 (한국천문연구원 위성탑재체연구그룹)
  • Published : 2006.10.26

Abstract

We observed $2.1218{\mu}m$ $H_2$ 1-0 S(1) emission from H II region A, which is located just next to Sgr A East and one of the nearest star forming regions to the Gatactic center. Cooled Grating Spectrometer 4 (CGS4) at the 3.8 m United Kingdom Infrared Telescope (UKIRT) was used with aa echelle grating at a velocity resolution of ${\sim}$ 18km s^{-1}$ and an angular resolution of ${\sim}$ 2 arcsec. Comparing the distributions and kinematics of the observed $H_2$ emission with radio continuum and $NH_3$ emission, we find no evidence that this H II region is interacting with Sgr A East. This conclusion supports that the star formation in this region has not been stimulated by the blast wave of Sgr A East.

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