The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 40 Issue 2
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- Pages.31.3-32
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- 2015
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- 1226-2692(pISSN)
ISM Properties and Star Formation Activities in IC 10 : 2D Cross Correlation Analysis of Multi-wavelength data
- Kim, Seongjoong (Yonsei University) ;
- Lee, Bumhyun (Yonsei University) ;
- Oh, Se-Heon (The International Centre for Radio Astronomy Research (ICRAR), University of Western Australia) ;
- Chung, Aeree (Yonsei University) ;
-
Rey, Soo-Chang
(Chungnam National University)
;
- Jung, Teahyun (Korea Astronomy and Space science Institute (KASI)) ;
- Kang, Miju (Korea Astronomy and Space science Institute (KASI))
- Published : 2015.10.15
Abstract
We present the physical properties of star forming regions in IC 10 obtained from Korea VLBI Network (KVN) 22GHz, the Submillimeter Array (SMA) CO, Very Large Array (VLA) HI 21cm, optical (U, B, V and H-alpha), and Spitzer infrared observations. IC 10 is a nearby (~0.7Mpc) irregular blue compact dwarf (BCD) galaxy which is likely to be experiencing an intense and recent burst of star formation. This nearby infant system showing high star formation rate but low metallicity (<20% of that of the Sun) provides critical environment of interstellar medium (ISM) under which current galactic star formation models are challenged. To make quantitative analysis of the ISM in the galaxy, we apply 2D cross-correlation technique to the multi-wavelength data for the first time. By cross-correlating different tracers of star formation, dust and gas phases in IC 10 in a two dimensional way, we discuss the gas properties and star formation history of the galaxy.
Keywords