R
Ryan O. Milligan
Researcher at Queen's University Belfast
Publications - 84
Citations - 4036
Ryan O. Milligan is an academic researcher from Queen's University Belfast. The author has contributed to research in topics: Solar flare & Flare. The author has an hindex of 31, co-authored 78 publications receiving 3752 citations. Previous affiliations of Ryan O. Milligan include The Catholic University of America & Goddard Space Flight Center.
Papers
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Journal ArticleDOI
A Si IV/O IV electron density diagnostic for the analysis of IRIS solar spectra
TL;DR: In this paper, a rare observation of the weak O IV $\lambda$1343.51 line is reported from an X-class flare that peaked at 21:41 UT on 2014 October 24.
Journal ArticleDOI
On the Performance of Multi-Instrument Solar Flare Observations During Solar Cycle 24.
Ryan O. Milligan,Jack Ireland +1 more
TL;DR: In this paper, the authors describe a technique that retrospectively searches archival databases for flares jointly observed by the Ramaty High Energy Solar Spectroscopic Imager (RHESSI), Solar Dynamics Observatory (SDO)/EUV Variability Experiment (EVE- Multiple EUV Grating Spectrograph (MEGS)-A and B, Hinode/(EUV Imaging Spectrometer, Solar Optical Telescope, and X-Ray Telescope), and Interface Region Imaging Spectrogram (IRIS).
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Performance of Major Flare Watches from the Max Millennium Program (2001-2010)
D. Shaun Bloomfield,Peter T. Gallagher,William H. Marquette,Ryan O. Milligan,Richard C. Canfield +4 more
TL;DR: The Max Millennium program and Major Flare Watch (MFW) alerts, aimed at coordinating observations of all flares >X1 GOES X-ray classification (including those partially occulted by the limb), are reviewed in this article.
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Solar flare X-ray source motion as a response to electron spectral hardening
TL;DR: In this paper, the authors used the collisional thick target model (CTTM) to predict the position of a source in a solar flare, which exhibits a nonthermally-dominated spe ctrum before the peak in HXRs, known as an early impulsive event.
Journal ArticleDOI
Properties of sequential chromospheric brightenings and associated flare ribbons
Michael S. Kirk,Michael S. Kirk,Krishnan Balasubramaniam,Krishnan Balasubramaniam,Jason Jackiewicz,R. T. James McAteer,Ryan O. Milligan +6 more
TL;DR: In this article, the physical properties of solar sequential chromospheric brightenings (SCBs) observed in conjunction with moderate-sized solar flares with associated Coronal mass ejections are investigated.