Emma BrownUniversity of Southern Queensland · Centre for Astronomy and Atmospheric Research
BEng (hon), Dip. Ed., MSc.
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Citations since 2017
6 Research Items
I am a PhD candidate at the Centre for Astrophysics at the University of Southern Queensland. My research interests are in stellar and planetary astrophysics, particularly the impacts of stellar activity on exoplanet detection and habitability. Currently I am studying magnetic cycles in solar-type stars, combining multi-epoch magnetic field analyses using Zeeman Doppler Imaging with long-term monitoring of chromospheric activity.
Skills and Expertise
Detecting a planetary companion in a short-period orbit through radio emission from the interaction with its host star is a new prospect in exoplanet science. Recently, a tantalising signal was found close to the low-mass stellar system GJ 1151 using LOFAR observations. We studied spectroscopic time-series data of GJ 1151 in order to search for pla...
Spectropolarimetric data allow for simultaneous monitoring of stellar chromospheric logR'HK activity and the surface-averaged longitudinal magnetic field, Bl, giving the opportunity to probe the relationship between large-scale stellar magnetic fields and chromospheric manifestations of magnetism. We present logR'HK and/or Bl measurements for 954 m...
23 pages, 14 figures, accepted for publication in MNRAS
Studying cool star magnetic activity gives an important insight into the stellar dynamo and its relationship with stellar properties, as well as allowing us to place the Sun’s magnetism in the context of other stars. Only 61 Cyg A (K5V) and τ Boo (F8V) are currently known to have magnetic cycles like the Sun’s, where the large-scale magnetic field...
Studying cool star magnetic activity gives an important insight into the stellar dynamo and its relationship with stellar properties, as well as allowing us to place the Sun's magnetism in the context of other stars. Only 61 Cyg A (K5V) and $\tau$ Boo (F8V) are currently known to have magnetic cycles like the Sun's, where the large-scale magnetic f...