Cosmological applications of H-alpha surveys

Details Cosmological applications of H-alpha surveys Cosmological applications of H-alpha surveys

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasa...15..111v&link_type=abstract

Publications Astronomical Society of Australia, vol. 15, no. 1, p. 111-17

Astronomy and Astrophysics

Astronomy

21

Cmbr Fluctuations, Ionizing Background Radiation, Star Formation Rate

Scientific paper

We briefly review three main applications of H-alpha surveys in cosmology, namely:(1) The diffuse H-alpha emission as a tracer of the free-free foreground that contaminates the fluctuations in the cosmic microwave background radiation; (2) the H-alpha emission from galaxies as a measure of the formation rate of massive stars, both at low and high redshift; and (3) the diffuse H-alpha emission from ionized clouds as a constraint on the local ionizing background radiation.

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