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Modeling dark haloes in early-type galaxies: stellar kinematics at large radii
Published online by Cambridge University Press: 21 October 2010
Extract
We developed a new method to obtain absorption line spectra of early-type galaxies at large radii, using integral-field spectrography (IFS). By using the spectrograph as a 'photon-collector' and adding the signal of many individual spaxels together in one spectrum, we obtain sufficient signal-to-noise to measure both stellar kinematics and line strengths at large radii. These can be used to determine the properties of the dark matter halo, as well as the stellar halo population.
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 69
- Copyright
- Copyright © International Astronomical Union 2010
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