Mapping the dark matter of NGC 2974: Combination of stellar & cold gas kinematics
- Author(s)
- M. Yang, L. Zhu, A. Weijmans, G. van de Ven, N. F. Boardman, R. Morganti, T. A. Oosterloo
- Abstract
We present a new method to combine cold gas kinematics with the stellar
kinematics modelled with the Schwarzschild orbit-superposition
technique, and its application to the lenticular galaxy NGC 2974. The
combination of stellar and cold gas kinematics significantly improves
the constraints on the measured dark matter profile: assuming a
generalised NFW halo profile, we find a cuspy inner halo slope for NGC
2974.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- University of St. Andrews, Chinese Academy of Sciences (CAS), European Southern Observatory (Germany), University of Utah, Netherlands Institute for Radio Astronomy (ASTRON), University of Groningen
- Journal
- Proceedings of the International Astronomical Union
- Volume
- 14
- Pages
- 253-254
- No. of pages
- 2
- ISSN
- 1743-9213
- DOI
- https://doi.org/10.1017/S1743921319008287
- Publication date
- 05-2020
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy, 103004 Astrophysics
- Keywords
- ASJC Scopus subject areas
- Astronomy and Astrophysics, Space and Planetary Science
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/c1d24d4e-27f6-4a74-a600-c9c4cc47d02f