Warm molecular gas in a starburst : CO (3-2) observations of maffei 2
Warm molecular gas in a starburst : CO (3-2) observations of maffei 2
复制标题
星暴中的温暖分子气体:马菲 2 的 CO (3-2) 观测
DOI:
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发表时间:
1993
期刊:
影响因子:
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通讯作者:
Robert N. Martin
中科院分区:
文献类型:
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作者:
R. Hurt;J. Turner;P. Ho;Robert N. Martin
We have mapped the CO J=3-2 emission in the inner 60″ (1500 pc) of the nearby SBb(s) pec galaxy Maffei 2 with the Caltech Submillimeter Observatory (CSO). The morphology of the CO (3-2) matches that seen in C0 (1-0) interferometric maps, possessing a barlike structure that is coincident with the morphology of radio continuum and mid-infrared observations of the extended starburst region. By assuming that the observed CO (3-2) emission is optically thin we set lower limits to the molecular column densities along the bar of N H2 ≥6-9×10 20 cm -2 and to the total molecular mass of M H2 ≥6×10 6 M ○ .