Stellar and Total Mass in Early-Type Lensing Galaxies | Zendy

Ignacio Ferreras | Zendy; Prasenjit Saha | Zendy; Liliya L. R. Williams | Zendy

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Stellar and Total Mass in Early-Type Lensing Galaxies

Author(s) -

Ignacio Ferreras,

Prasenjit Saha,

Liliya L. R. Williams

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/429995

Subject(s) - physics , astrophysics , astronomy , elliptical galaxy , dark matter , dark galaxy , galaxy , galaxy formation and evolution , lenticular galaxy

For 18 well-observed gravitationally lensed QSOs, we compare newnon-parametric mass profiles for the lensing galaxies with stellar-populationmodels derived from published HST photometry. The large volume of parameterspace searched -- with respect to the possible star formation histories --allows us to infer robust estimates and uncertainties for the stellar masses.The most interesting results are: (1) the transition from little or no darkmatter in the inner regions (

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