INTENSITY MAPPING OF MOLECULAR GAS DURING COSMIC REIONIZATION
نویسندگان
چکیده
منابع مشابه
Intensity mapping of molecular gas during cosmic reionization
I present a simple calculation of the expected mean CO brightness temperature from the large scale distribution of galaxies during cosmic reionization. The calculation is based on the cosmic star formation rate density required to reionize, and keep ionized, the intergalactic medium, and uses standard relationships between star formation rate, IR luminosity, and CO luminosity derived for star f...
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Cosmic reionization progresses as H II regions form around sources of ionizing radiation. Their average size grows continuously until they percolate and complete reionization. We demonstrate how this typical growth can be calculated around the largest, biased sources of UV emission such as quasars by further developing an analytical model based on the excursion set formalism. This approach allo...
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The study of cosmic reionization has acquired increasing significance over the last few years because of various reasons. On the observational front, we now have good quality data of different types at high redshifts (quasar absorption spectra, radiation backgrounds at different frequencies, cosmic microwave background polarization, Lyα emitters and so on). Theoretically, the importance of the ...
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We propose observations of the molecular gas distribution during the era of reionization. At z ∼ 6 to 8, 12CO(J = 1 − 0) line intensity results in a mean brightness temperature of about 0.5 μK with rms fluctuations of 0.1 μK at 1 to 10 Mpc spatial scales, corresponding to 30 arcminute angular scales. This intensity fluctuations can be mapped with an interferometer, similar to existing and plann...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2011
ISSN: 2041-8205,2041-8213
DOI: 10.1088/2041-8205/730/2/l30