The kinematic identification of a thick stellar disc in M31
MLM Collins, SC Chapman, RA Ibata… - Monthly Notices of …, 2011 - academic.oup.com
We present the first characterization of a thick-disc component in the Andromeda galaxy
(M31) using kinematic data from the DEIMOS instrument on Keck II. Using 21 fields in the
south-west of the galaxy, we measure the lag of this component with respect to the thin disc,
as well as the dispersion, metallicity and scalelength of the component. We find an average
lag between the two components of< Δ v>= 46.0±3.9 km s− 1. The velocity dispersion of the
thick disc is σthick= 50.8±1.9 km s− 1, greater than the value of dispersion we determine for …
(M31) using kinematic data from the DEIMOS instrument on Keck II. Using 21 fields in the
south-west of the galaxy, we measure the lag of this component with respect to the thin disc,
as well as the dispersion, metallicity and scalelength of the component. We find an average
lag between the two components of< Δ v>= 46.0±3.9 km s− 1. The velocity dispersion of the
thick disc is σthick= 50.8±1.9 km s− 1, greater than the value of dispersion we determine for …
The kinematic identification of a thick stellar disc in M31
SC Chapman, MJ Irwin, RA Ibata, RM Rich… - 2011 - figshare.le.ac.uk
We present the first characterization of a thick-disc component in the Andromeda galaxy
(M31) using kinematic data from the DEIMOS instrument on Keck II. Using 21 fields in the
south-west of the galaxy, we measure the lag of this component with respect to the thin disc,
as well as the dispersion, metallicity and scalelength of the component. We find an average
lag between the two components of< Δv>= 46.0±3.9 km s [Superscript:− 1]. The velocity
dispersion of the thick disc is σthick= 50.8±1.9 km s [Superscript:− 1], greater than the value …
(M31) using kinematic data from the DEIMOS instrument on Keck II. Using 21 fields in the
south-west of the galaxy, we measure the lag of this component with respect to the thin disc,
as well as the dispersion, metallicity and scalelength of the component. We find an average
lag between the two components of< Δv>= 46.0±3.9 km s [Superscript:− 1]. The velocity
dispersion of the thick disc is σthick= 50.8±1.9 km s [Superscript:− 1], greater than the value …