Modeling dark haloes in early-type galaxies: stellar kinematics at large radii

Details Modeling dark haloes in early-type galaxies: stellar kinematics at large radii Modeling dark haloes in early-type galaxies: stellar kinematics at large radii

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hia....15...69w&link_type=abstract

Highlights of Astronomy, Volume 15, p. 69-69

Astronomy and Astrophysics

Astronomy

Scientific paper

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.

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