Stellar Stoichiometry Workshop

Presenter: Steven Desch, Arizona State University
When: April 11, 2013 9AM PDT

A 2-day workshop intended for people in the astronomy, astrobiology, and related communities to discuss and address several unresolved issues related to the topic of stellar abundances, and its impact on planetary systems. The “Workshop without Walls” format allowed users to join the conference from multiple continents.

To watch the recorded talks, simply click on the links in the agenda below:

Day 1

9:00 – 9:20 Welcome / Goals of Workshop
9:20 – 9:30 Introduction 1. Intrinsic Variations
9:30 – 10:00 Introduction 2. Discrepancies in Measured Abundances
10:00 – 10:30 Abundance Methodologies and Discussion

Break

10:50 – 11:20 1. Presentation of Spectroscopy Methods
11:20 – 12:00 2. Discussion / Argument on the Abundance Variations between Groups

Break

12:40 – 1:00 Lightning Talks
1:00 – 1:20 Discussion
1:20 – 1:40 Effects of Si & O on Planetary Formation
1:40 – 2:00 Planetary Compositions
2:00 – 2:20 White Dwarfs as Probes of Planetary Composition
2:20 – 2:50 Discussion
2:50 – 3:00 Closing Thoughts for Day 1

Day 2

9:00 – 9:20 Effect of O & Fe on Stellar Evolution and Habitable Zones
9:20 – 9:40 Effects on Planetary Atmospheres
9:40 – 10:00 Discussion
10:00 – 10:20 Injection of Supernova Material
10:20 – 10:40 Stable Isotopes and Supernova Injection
10:40 – 11:00 Discussion
11:00 – 11:20 Snow Lines in Protoplanetary Disks
11:20 – 11:40 Heating of Planetary Interiors
11:40 – 12:00 Discussion

Break

12:40 – 1:00 Planetary Compositions
1:00 – 1:20 Effects of Elemental Ratios on Planetary Interiors
1:20 – 1:40 Discussion

Break

2:00 – 2:50 Discussion of Future Directions
2:50 – 3:00 Workshop Summary (Desch, Young, Anbar)

Workshops Without Walls

  • The Workshop Without Walls concept was developed by the NAI as part of its mandate to use modern information technology to foster interdisciplinary and collaborative research among widely distributed investigators.
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