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Browsing by Author "Johnson, Christian I."
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Constraints on the formation of the galactic bulge from Na, Al, and heavy-element abundances in Plaut's field.
Johnson, Christian I.; Rich, R. Michael; Kobayashi, Chiaki; Fulbright, Jon P. (2012-04-05)We report chemical abundances of Na, Al, Zr, La, Nd, and Eu for 39 red giant branch (RGB) stars and 23 potential inner disk red clump stars located in Plaut's low-extinction window. We also measure lithium for a super ... -
Light, Alpha, and Fe-Peak Element Abundances in the Galactic Bulge
Johnson, Christian I.; Rich, R. Michael; Kobayashi, Chiaki; Kunder, Andrea; Koch, Andreas (2014-09-09)We present radial velocities and chemical abundances of O, Na, Mg, Al, Si, Ca, Cr, Fe, Co, Ni, and Cu for a sample of 156 red giant branch stars in two Galactic bulge fields centered near (l,b)=(+5.25,-3.02) and (0,-12). ...