The Solar Halo
نویسندگان
چکیده
منابع مشابه
Halo stars in the immediate solar neighbourhood
We have searched the Fourth Catalogue of Nearby Stars for halo stars and identified 15 subdwarfs and a high velocity white dwarf in the solar neighbourhood. This searchwasmotivated mainly by the recent determinations of MACHOmasses of about 0.5M , which are typical for halo dwarfs. The local mass density of these stars is 1.5·10−4M pc−3, which is only 3% of the current estimate of the local mas...
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The global missing baryon problem — that the sum of observed baryons falls short of the number expected form BBN — is well known. In addition to this, there is also a local missing baryon problem that applies to individual dark matter halos. This halo by halo missing baryon problem is such that the observed mass fraction of baryons in individual galaxies falls short of the cosmic baryon fractio...
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3 Department of Physics, Govt. New Science College, Rewa, (M.P.), 486001, INDIA; __________________________________________________________________________________________ Abstract: Based on SOHO/LASCO catalogue and solar geophysical data, we studied the geoeffectiveness, solar source and flare association of a set of 397 halo CMEs during the period of 1996 to 2008. We find that Disk halos are ...
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ژورنال
عنوان ژورنال: Nature
سال: 1871
ISSN: 0028-0836,1476-4687
DOI: 10.1038/005103c0