Quasar Parallax: A Method for Determining Direct Geometrical Distances to Quasars
نویسندگان
چکیده
منابع مشابه
Quasar Parallax: a Method for Determining Direct Geometrical Distances to Quasars
We describe a novel method to determine direct geometrical distances to quasars that can measure the cosmological constant, Λ, with minimal assumptions. This method is equivalent to geometric parallax, with the ‘standard length’ being the size of the quasar broad emission line region (BELR) as determined from the light travel time measurements of reverberation mapping. The effect of non-zero Λ ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2002
ISSN: 0004-637X,1538-4357
DOI: 10.1086/346015