Ionised Hydrogen at Large Galactocentric Distances
نویسندگان
چکیده
منابع مشابه
Molecular gas in spiral galaxies: a new warm phase at large galactocentric distances?
There is now strong evidence suggesting that the CO J=1–0 transition, widely used to trace H2 gas, significantly underestimates its mass in metal-poor regions. In spiral disks such regions are found in large galactocentric distances where we show that any unaccounted H2 gas phase is likely to be diffuse (n ∼ 5− 20 cm−3) and warmer (Tkin ∼ 50− 100 K) than the cool (Tkin ∼ 15− 20 K) CO-luminous o...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Australia
سال: 1997
ISSN: 1323-3580,1448-6083
DOI: 10.1071/as97064