2023 SDSS-V Collaboration Meeting

Session

Session 3

Aug 1, 2023, 9:00 AM

Gerald D. Fischbach Auditorium/2-GDFA (160 5th Avenue)

Conveners

Session 3

• Nicola Gentile Fusillo

25. HII regions beyond spherical cows: temperature and density inhomogeneities

Eduardo Méndez-Delgado (REMOTE)

8/1/23, 9:00 AM

HII regions, ionized nebulae associated to massive star formation, exhibit a wealth of emission lines that are the fundamental basis for estimating the chemical composition of the Universe. Heavy element abundances are particularly important because they are essential to the understanding of nucleosynthesis, star formation and chemical evolution. For more than 80 years, however, a discrepancy...

26. MWM: stars as probes of stellar (and planetary) structure and evolution

Paula Jofre

8/1/23, 9:25 AM

This talk will be an overview of how can we use thousands of stellar spectra to learn about the processes that shape the Milky Way or planetary systems.

28. Mapping the Milky Way's Outer Halo with BOSS

Vedant Chandra

8/1/23, 9:50 AM

I will present the data analysis pipeline our group has developed for BOSS spectra, which delivers stellar parameters, alpha abundances, and 6D kinematics for all stars in the Milky Way Mapper halo program. I will also present our selection procedure for the distant halo sub-program, in which we target luminous red giant stars in the uncharted outskirts of the Galaxy. Finally, I will summarize...

27. A Spectacular Star from Spectroscopic Followup of Milky Way Mapper Halo

Alexander Ji

8/1/23, 10:02 AM

The SDSS-V Milky Way Mapper halo program will obtain spectra of hundreds of thousands of stars in the local halo, distant halo, and metal-poor halo. The halo working group has a spectroscopic follow up program to investigate the most interesting stars identified based on their kinematics or chemistry, with a focus on metal-poor low-alpha stars that likely accreted onto the Milky Way in low...

29. Modelling the Chemical Evolution of the Milky Way with OMEGA

Viola Hegedűs

8/1/23, 10:14 AM

We will present new models simulating the chemical evolution of our Galaxy using abundances from MWM for which we are using the multi-zone chemical evolution environment OMEGA+. We compare the observed elemental abundance patterns of stars with the theoretical prediction of various evolution scenarios, such as the two-infall and parallel formations. We also undertook a comparison between...