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astro-ph2003
Self-similar collapse with cooling and heating in an expanding universe
Shuji Uchida, Tatsuo Yoshida
We derive self-similar solutions including cooling and heating in an Einstein de-Sitter universe, and investigate the effects of cooling and heating on the gas density and temperat…
astro-ph2003
High Accretion Rate during Class 0 Phase due to External Trigger
Kazutaka Motoyama, Tatsuo Yoshida
Recent observations indicate that some class 0 sources have orders of magnitude higher accretion rates than those of class I. We investigated the conditions for the high accretion…
astro-ph2003
Galactic Gamma-Ray Halo of the Nearby Starburst Galaxy NGC 253
C. Itoh, R. Enomoto, S. Yanagita +2
Recently, the CANGAROO-II telescope detected diffuse TeV gamma-ray emission from a nearby edge-on starburst galaxy, NGC 253. The emission mechanism is discussed in this report. We…