Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..265..167d&link_type=abstract
Chemical Abundances in the Universe: Connecting First Stars to Planets, Proceedings of the International Astronomical Union, IAU
Astronomy and Astrophysics
Astronomy
Galaxies: Intergalactic Medium - Radio Lines: General
Scientific paper
We discuss possibility of observations of the warm-hot intergalactic medium using the hyperfine structure line of highly charged nitrogen ion 14N VII (rest wavelength λ = 5.652 mm). Observations of this line will allow to separate bulk and turbulent motions in the observed target and will broaden the information about the gas ionization state, chemical and isotopic composition.
Wavelength of this line is well-suited for ground-based observation of objects at z ≈ 0.15 - 0.6 when it is redshifted to the widely-used 6.5 - 9 mm spectral band, and, for example, for z ≥ 1.3, when the line can be observed in 1.3 cm band and at lower frequencies.
Docenko Dmitrijs
Sunyaev Rashid A.
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