Cold molecular gas in the Perseus cluster core
نویسندگان
چکیده
منابع مشابه
Cold gas in the Perseus cluster core: Excitation of molecular gas in filaments
We have recently detected CO lines in the well-known filaments around NGC 1275, the galaxy at the centre of the Perseus cluster of galaxies. These previous observations, with the HERA multi-beam array at the IRAM 30m telescope enabled us to make a large map of the CO(2–1) line and to see hints of molecular gas far away from the cluster centre. To confirm the presence of CO emission lines in the...
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The 5-9 keV spectrum of the inner ∼100 kpc of the Perseus cluster measured by XMMNewton can be well described by an optically thin plasma emission model as predicted by the APEC code, without any need for invoking a strong Ni overabundance or the effects of resonant scattering. For the strongest 6.7 keV line of He-like iron, the optical depth of the cluster, calculated using observed density, t...
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I review the literature's census of the cold gas in clusters of galaxies. Cold gas here is defined as the gas that is cooler than X-ray emitting temperatures (∼ 10 7 K) and is not in stars. I present new Spitzer IRAC and MIPS observations of Abell 2597 that reveal significant amounts of warm dust and star formation at the level of 5 solar masses per year.
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2006
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20054745