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

  • Anne-Marie Weijmans (a1) (a2)

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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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References

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van den Bosch, R. C. E., van de Ven, G., Verolme, E. K., Cappellari, M., & de Zeeuw, P. T., 2008, MNRAS, 385, 647
Weijmans, A., 2009, PhD thesis, Leiden University
Weijmans, A., et al. , 2009, MNRAS, in press (arXiv0908.0018)
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Modeling dark haloes in early-type galaxies: stellar kinematics at large radii

  • Anne-Marie Weijmans (a1) (a2)

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