Paper:	Radial Structure of Galactic Stellar Disks
Volume:	275, Disks of Galaxies: Kinematics, Dynamics and Perturbations
Page:	15
Authors:	Pohlen, M.; Dettmar, R. J.; Lütticke, R.; Aronica, G.
Abstract:	We present the results from our deep optical imaging survey μVlim ≈ 26-27 magsqarcsec of a morphologically selected sample of 72 edge-on disk galaxies. The question of the global structure of galactic stellar disks, especially the radial surface brightness profile at large galactocentric distances, is addressed. We find that typical radial profiles are better described by a two-slope exponential profile --characterised by an inner and outer scalelength separated at a break radius-- rather than a sharply-truncated exponential model. Results are given for three face-on equivalents, serving as the crucial test to assure the findings for the edge-on sample without possible geometrical line-of-sight effects.

Astronomical Society of the Pacific
Conference Series

© Copyright 1988 - 2024 - Astronomical Society of the Pacific
No part of the material protected by this copyright may be reproduced or used in any form other than for personal use without written permission from the ASP.

Page generated in 0.068 seconds