Feb 7 – 9, 2017
Radisson Hotel Lansing
US/Eastern timezone

The Rise of Carbon in the Universe

Feb 7, 2017, 4:45 PM
1h 15m
Radisson Hotel Lansing

Radisson Hotel Lansing

111 N Grand Ave, Lansing, MI 48933
Poster [Main Conference] Poster session

Speaker

Ms Kaitlin Rasmussen (University of Notre Dame)

Description

We investigate the distribution of stellar carbon abundances in the early Universe and propose a scenario that includes primary carbon production by the massive first-generation stars, recorded in the atmospheres of CEMP-no stars (which show no over-abundances of neutron-capture elements), and secondary carbon production by subsequent generations of AGB stars, recorded in the subset of mass-transfer binaries now observed as CEMP-$s$ stars (which exhibit strong over-abundances of neutron-capture elements). Additionally, we investigate the contrasting behavior of CEMP stars with their more metal-rich counterparts, focusing on their kinematics, spatial distribution, and elemental abundances, in order to constrain the chemo-dynamical history of the Galaxy, from the earliest stars to the present. References: Placco, V. M., et al. (2016), ApJ, 833, 21 Yoon, J., et al. (2016), ApJ, 833, 20 This work received partial support from PHY 14-30152; Physics Frontier Center/JINA Center for the Evolution of the Elements (JINA-CEE), awarded by the US National Science Foundation.

Primary author

Ms Kaitlin Rasmussen (University of Notre Dame)

Co-authors

Mr Devin Whitten (University of Notre Dame) Prof. Timothy Beers (University of Notre Dame) Dr Vinicius Placco (University of Notre Dame)

Presentation materials

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