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False Planets around Giant Stars: A Case Study of Sanders 364 in M67

Published in The Astronomical Journal, 2023

Discovering planets in sparsely populated regions of parameter space is crucial to improving our understanding of planetary formation and evolution. One such region is the subset of planets that orbit giant, evolved stars. However, some evolved stars are known to exhibit quasi-periodic radial velocity (RV) signals, which can masquerade as signals from planetary companions. Using the K giant star Sanders 364 as a case study, we investigate the nature of long-period non-planetary RV signals.

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Competitive Entrapment of Hypervolatiles in Interstellar and Cometary Water Ice Analogs

Published in The Astrophysical Journal, 2024

The distribution of chemical species in protoplanetary disks around young stars, especially their division between gas and solid phases, fundamentally shapes the composition of future planets and planetesimals. This distribution is likely affected by entrapment, a mechanism whereby volatile species are mechanically or chemically bound within a less volatile ice. In this study, we experimentally investigate the entrapment efficiencies of four hypervolatiles (CH₄, CO, N₂, and Ar) in multicomponent water ice mixtures deposited at different temperatures and mixture ratios. We use these results to better inform interpretations of hypervolatile observations in comets and related objects.

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Talk 1 on Relevant Topic in Your Field

Published: March 01, 2012

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Tutorial 1 on Relevant Topic in Your Field

Published: March 01, 2013

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Talk 2 on Relevant Topic in Your Field

Published: February 01, 2014

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Conference Proceeding talk 3 on Relevant Topic in Your Field

Published: March 01, 2014

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Teaching experience 1

Undergraduate course, University 1, Department, 2014

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Teaching experience 2

Workshop, University 1, Department, 2015

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