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Origin of Hot Bubble in NGC 6822 Hubble V Star-Forming Region

Published online by Cambridge University Press:  30 October 2019

Hye-In Lee
Affiliation:
School of Space Research and Institute of Natural Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Republic of Korea, emails: hyeinlee@khu.ac.kr, soojong@khu.ac.kr
Heeyoung Oh
Affiliation:
Korea Astronomy and Space Science Institute776, Daedeokdae-ro, Yuseong-gu, Daejeon, 34055, Republic of Korea
Beomdu Lim
Affiliation:
School of Space Research and Institute of Natural Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Republic of Korea, emails: hyeinlee@khu.ac.kr, soojong@khu.ac.kr
Huynh Anh N. Le
Affiliation:
Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
Sungho Lee
Affiliation:
Korea Astronomy and Space Science Institute776, Daedeokdae-ro, Yuseong-gu, Daejeon, 34055, Republic of Korea
Gregory Mace
Affiliation:
Department of Astronomy, the University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, Texas 78712-1205, USA
Daniel T. Jaffe
Affiliation:
Department of Astronomy, the University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, Texas 78712-1205, USA
Ken’ichi Tatematsu
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JAPAN
Sangwook Park
Affiliation:
Physics Department, University of Texas at ArlingtonBox 19059, Arlington, Texas 76019, USA
Soojong Pak
Affiliation:
School of Space Research and Institute of Natural Sciences, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Republic of Korea, emails: hyeinlee@khu.ac.kr, soojong@khu.ac.kr
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Abstract

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We observed a bright H II complex, Hubble V in NGC 6822, using the high-resolution near-infrared spectrograph IGRINS (R = 45,000) attached on the 2.7 m telescope at the McDonald Observatory. We carried out a spectral mapping over a 15″ × 18″ region in the H and K bands using a slit-scanning technique. The emission lines Brγ and He i from ionized regions as well as molecular hydrogen lines from photo-dissociation regions (PDRs), were detected. We show three-dimensional maps of the emission lines and discuss the possibility of an expanding hot bubble structure within which many ionized components are around the central stellar cluster.

Type
Contributed Papers
Copyright
© International Astronomical Union 2019 

References

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