Mixture Models for improvements of data from Kepler, K2, Gaia and TESS

Lead Research Organisation: University of Birmingham
Department Name: School of Physics and Astronomy

Abstract

I am using cutting edge statistical methods to improve data reduction for various space telescopes, the data of which is commonly used in exoplanet detection and asteroseismology, the study of stellar vibrations. First and foremost I am using absolute magnitude to classify Red Clump stars in Gaia data, a subclass of Red Giant. I am also working on an analysis of the impact of systematics corrections on exoplanet radii, and have contributed to the data reduction pipeline for TESS by estimating the backgrounds of Full Frame Images (FFIs).

Publications

10 25 50

Studentship Projects

Project Reference Relationship Related To Start End Student Name
ST/N503939/1 01/10/2015 30/03/2021
2046401 Studentship ST/N503939/1 01/10/2016 31/03/2020 Oliver Hall
 
Description Ogden Trust Alumni fund one-off grants
Amount £815 (GBP)
Funding ID AFG\100013 
Organisation Ogden Trust 
Sector Charity/Non Profit
Country United Kingdom
Start 08/2019 
End 08/2019
 
Title Software -- lightkurve.seismology 
Description Lightkurve.seismology is a sub-module of the Lightkurve Python package that allows a user to take an asteroseismic power-spectrum and determine basic asteroseismic properties -- such as mass and radius -- in a transparent way. 
Type Of Technology Software 
Year Produced 2019 
Open Source License? Yes  
Impact Presented software at TASC5/KASC12 conference, received positive feedback from users. Is being applied as a first-look tool in scientific studies. 
URL https://docs.lightkurve.org/api/lightkurve.seismology.Seismology.html
 
Title lightkurve.periodogram 
Description I contributed the 'Periodogram' class to the open source 'lightkurve' Python package. 
Type Of Technology Software 
Year Produced 2018 
Open Source License? Yes  
Impact 'lightkurve' has been cited in research, and further development of 'periodogram' is underway by other software developers building upon my foundation. 
URL https://docs.lightkurve.org/index.html
 
Description Author for Astrobites 
Form Of Engagement Activity A magazine, newsletter or online publication
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Undergraduate students
Results and Impact I am an author for the online publication 'Astrobites', where I digest academic papers to an undergraduate level.
Year(s) Of Engagement Activity 2019
URL http://www.astrobites.org