Absolute magnitudes for late-type dwarf stars for Sloan photometry

Bilir S., Karaali S., Tunçel S.

ASTRONOMISCHE NACHRICHTEN, vol.326, no.5, pp.321-331, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 326 Issue: 5
  • Publication Date: 2005
  • Doi Number: 10.1002/asna.200510358
  • Journal Name: ASTRONOMISCHE NACHRICHTEN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.321-331
  • Keywords: techniques : Sloan photometry, stars : distances, stars : luminosity function, STELLAR LUMINOSITY FUNCTION, GALACTIC STRUCTURE, PARALLAX ESTIMATION, MODEL PARAMETERS, COUNTS, SYSTEM
  • Istanbul University Affiliated: Yes

Abstract

We present a new formula for absolute magnitude determination for late-type dwarf stars as a function of (g - r) and (r - i) for Sloan photometry. The absolute magnitudes estimated by this approach are brighter than those estimated by colour-magnitude diagrams, and they reduce the luminosity function rather close to the luminosity function of Hipparcos.