Hostname: page-component-8448b6f56d-c47g7 Total loading time: 0 Render date: 2024-04-19T08:45:10.157Z Has data issue: false hasContentIssue false

Parallel-sequencing of early-type and spiral galaxies

Published online by Cambridge University Press:  05 March 2015

Michele Cappellari*
Affiliation:
Sub-department of Astrophysics, Department of Physics, University of Oxford Denys Wilkinson Building, Keble Road, Oxford OX1 3RH email: cappellari@astro.ox.ac.uk
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Since Edwin Hubble introduced his famous tuning fork diagram more than 70 years ago, spiral galaxies and early-type galaxies (ETGs) have been regarded as two distinct families. The spirals are characterized by the presence of disks of stars and gas in rapid rotation, while the early-types are gas poor and described as spheroidal systems, with less rotation and often non-axisymmetric shapes. The separation is physically relevant as it implies a distinct path of formation for the two classes of objects. I will give an overview of recent findings, from independent teams, that motivated a radical revision to Hubble's classic view of ETGs. These results imply a much closer link between spiral galaxies and ETGs than generally assumed.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2015 

References

Cappellari, M., et al., 2011, MNRAS, 416, 1680CrossRefGoogle Scholar
Cappellari, M., et al., 2013, MNRAS, 432, 1862CrossRefGoogle Scholar