Revisiting the optical depth of spiral galaxies using the Tully-Fisher B relation - UTU Research Portal

A1 Refereed original research article in a scientific journal

Revisiting the optical depth of spiral galaxies using the Tully-Fisher B relation

Authors: Kankare E, Hanski M, Theureau G, Teerikorpi P

Publisher: EDP SCIENCES S A

Publication year: 2009

Journal: Astronomy and Astrophysics

Journal name in source: ASTRONOMY & ASTROPHYSICS

Journal acronym: ASTRON ASTROPHYS

Volume: 493

Issue: 1

First page : 23

Last page: 31

Number of pages: 9

ISSN: 0004-6361

DOI: https://doi.org/10.1051/0004-6361:200809892

Self-archived copy’s web address: https://arxiv.org/abs/0810.4773

Abstract

Results. The present study suggests that spiral galaxy disks are relatively optically thin tau(B) approximate to 0.1, at least in the outermost regions, while they appear in general to be optically thick tau(B) > 1 when the apparent magnitude and average surface brightness are studied statistically.