Chemical Signature of Gas-rich disc-disc Mergers at high Redshift

Bibcode
2011IAUS..277..250M
DOI
10.1017/S1743921311022885
Martel, Hugo; Richard, Simon; Brook, Chris B.; Kawata, Daisuke; Gibson, Brad K.; Sánchez-Blázquez, P.
Bibliographical reference

Tracing the Ancestry of Galaxies (on the land of our ancestors), Proceedings of the International Astronomical Union, IAU Symposium, Volume 277, p. 250-254

Advertised on:
12
2011
Number of authors
6
IAC number of authors
1
Citations
0
Refereed citations
0
Description
We performed numerical simulations of mergers between gas-rich disc galaxies, which result in the formation of late-type galaxies. Stars formed during the merger end up in a thick disc that is partially supported by velocity dispersion and has high [α/Fe] ratios at all metallicities. Stars formed later end up in a thin, rotationally supported disc which has lower [α/Fe] ratios. While the structural and kinematical properties of the merger remnants depend strongly upon the orbital parameters of the mergers, we find a clear chemical signature of gas-rich mergers.
Type
Non-refereed
Galaxies

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