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Pages
About me
About me
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Posts
portfolio
Twitter Sockpuppet Analysis with NLP
Millions of tweets. Thousands of fake accounts. A sophisticated disinformation campaign.
Efficiently tuning topic models
In natural language processing, topic models are used to extract meaningful and human-interpretable topics from a corpus. However, tuning topic models for large corpora can be time consuming and computationally expensive. By monitoring topic coherence as a function of corpus size, we can determine how to efficiently create a high quality topic model. In this project, we will demonstrate this technique using the English Wikipedia corpus.
publications
Sowing Black Hole Seeds: Direct Collapse Black Hole Formation with Realistic Lyman–Werner Radiation in Cosmological Simulations
Published in The Astrophysical Journal, 2018
We study the demographics of direct collapse massive black hole seed formation sites in the context of a cosmological SPH+N-body simulation with self-consistent, time-dependent, non-uniform Lyman-Werner radiation.
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The Role of Gravitational Recoil in the Assembly of Massive Black Hole Seeds
Published in The Astrophysical Journal, 2020
Massive black hole mergers release linear and angular momentum in the form of gravitational waves in a preferred direction due to asymmetries in the binary system. This release imparts a gravitational recoil kick to the merged system, which can reach up to thousands of kilometers per second. We study the role of gravitational recoil in the assembly of massive black hole seeds in the first billion years of the Universe.
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talks
Sowing black hole seeds
Published:
The role of gravitational recoil in the assembly of direct collapse massive black hole seeds
Published:
teaching
Vanderbilt University
Introduction to Astronomy Lab, Vanderbilt University, Department of Physics and Astronomy, 2017
Introduction to Astronomy Laboratory
From Fall 2014 to Spring 2017, I served as a teaching assistant for the Department of Physics and Astronomy at Vanderbilt University. Each semester, I lead one section of the laboratory component of Vanderbilt’s undergraduate-level introductory astronomy course. This course covered topics including celestial motion, spectroscopy, extrasolar planet detection, stellar photometry, basic telescope operation, and night sky observation.