21-cm line observations of galaxies from Kazarian's lists
نویسندگان
چکیده
منابع مشابه
X-rays and hard ultraviolet radiation from the first galaxies: ionization bubbles and 21-cm observations
The first stars and quasars are known sources of hard ionizing radiation in the first billion years of the Universe. We examine the joint effects of X-rays and hard ultraviolet (UV) radiation from such first-light sources on the hydrogen and helium reionization of the intergalactic medium (IGM) at early times, and the associated heating. We study the growth and evolution of individual H II, He ...
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics Supplement Series
سال: 1997
ISSN: 0365-0138,1286-4846
DOI: 10.1051/aas:1997276