The Distance to NGC 5128 (Centaurus A)

被引：184

作者：

Harris, Gretchen L. H. ^{[1
]}

Rejkuba, Marina ^{[2
]}

Harris, William E. ^{[3
]}

机构：

[1] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[2] European So Observ, D-85748 Garching, Germany

[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8P 2X7, Canada

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 2010年 / 27卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Galaxies: distances and redshifts; galaxies: individual (NGC 5128); galaxies: stellar content; RED GIANT BRANCH; HUBBLE-SPACE-TELESCOPE; RR-LYRAE STARS; METALLICITY DISTRIBUTION; HALO STARS; GALAXY DISTANCES; CLASSICAL CEPHEIDS; GLOBULAR-CLUSTERS; ADVANCED CAMERA; AGB VARIABLES;

D O I：

10.1071/AS09061

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we review the various high precision methods that are now available to determine the distance to NGC 5128. These methods include: Cepheids, TRGB (tip of the red giant branch), PNLF (planetary nebula luminosity function), SBF (surface brightness fluctuations), and Long Period Variable (LPV) Mira stars. From an evaluation of these methods and their uncertainties, we derive a best-estimate distance of 3.8 +/- 0.1 Mpc to NGC 5128 and find that this mean is now well supported by the current data. We also discuss the role of NGC 5128 more generally for the extragalactic distance scale as a testbed for the most direct possible comparison among these key methods.

引用

页码：457 / 462

页数：6

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