Output details
9 - Physics
University of Oxford
Article title
DYNAMICAL MASSES OF EARLY-TYPE GALAXIES AT z similar to 2: ARE THEY TRULY SUPERDENSE?
Type
D - Journal article
Title of journal
ASTROPHYS J LETT
Article number
-
Volume number
704
Issue number
1
First page of article
L34
ISSN of journal
0004-637X
Year of publication
2009
URL
-
Number of additional authors
13
Additional information
I was challenged by the 2nd author whether it would be possible to extract the stellar velocity dispersion of passive galaxies at redshift z~2. This had never been attempted at the time due to technical issues. I devised an approach that uses a linear combination of synthetic stellar spectra to fit the rest-frame ultraviolet spectral region of a stacked spectrum of multiple galaxies. I used my own detailed dynamical models to measure galaxy masses in a way that eliminates biases inherent to the popular virial approach at highz. I wrote up the paper and implemented the comments from the co-authors
Interdisciplinary
-
Cross-referral requested
-
Research group
P - Observational Astrophysics
Citation count
73
Proposed double-weighted
No
Double-weighted statement
-
Reserve for a double-weighted output
No
Non-English
No
English abstract
-
