publication . Preprint . Article . 2011

THE CASE FOR THE DUAL HALO OF THE MILKY WAY

Timothy C. Beers; Daniela Carollo; Željko Ivezić; Deokkeun An; Masashi Chiba; John E. Norris; Ken C. Freeman; Young Sun Lee; Jeffrey A. Munn; Paola Re Fiorentin; ...
Open Access English
  • Published: 13 Apr 2011
Abstract
Carollo et al. have recently resolved the stellar population of the Milky Way halo into at least two distinct components, an inner halo and an outer halo. This result has been criticized by Schoenrich et al., who claim that the retrograde signature associated with the outer halo is due to the adoption of faulty distances. We refute this claim, and demonstrate that the Schoenrich et al. photometric distances are themselves flawed because they adopted an incorrect main-sequence absolute magnitude relationship from the work of Ivezi\'c et al. When compared to the recommended relation from Ivezi\'c et al., which is tied to a Milky Way globular cluster distance scale...
Subjects
arXiv: Astrophysics::Galaxy AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Earth and Planetary Astrophysics
free text keywords: Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, Astronomy and Astrophysics, Physics, Globular cluster, Absolute magnitude, Halo, Population, education.field_of_study, education, Astronomy, Milky Way, Metallicity, Galactic halo, Astrophysics, Stellar population

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publication . Preprint . Article . 2011

THE CASE FOR THE DUAL HALO OF THE MILKY WAY

Timothy C. Beers; Daniela Carollo; Željko Ivezić; Deokkeun An; Masashi Chiba; John E. Norris; Ken C. Freeman; Young Sun Lee; Jeffrey A. Munn; Paola Re Fiorentin; ...