Amr Hamada
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View article: Extremely UV-bright starbursts at the end of cosmic reionization
Extremely UV-bright starbursts at the end of cosmic reionization Open
We present a study of 27 very UV-bright (-22.010, suggesting a shared evolutionary pathway.[Abridged]
View article: FArSide Trained Active Region Recognition (FASTARR): A Machine Learning Approach
FArSide Trained Active Region Recognition (FASTARR): A Machine Learning Approach Open
Helioseismic holography is a technique used to identify active regions in the Sun’s far hemisphere by studying seismic disturbances in the Sun’s visible hemisphere caused by acoustic waves in its interior that have reflected from its far h…
View article: Far-side Active Regions Based on Helioseismic and EUV Measurements: A New Data Set for Heliospheric Machine Learning Advancements
Far-side Active Regions Based on Helioseismic and EUV Measurements: A New Data Set for Heliospheric Machine Learning Advancements Open
Active Regions (ARs) are regions of strong magnetic flux in the solar atmosphere. Understanding the global evolution of ARs is critical for solar magnetism as well as for accurate space-weather forecasting. We present the first far-side AR…
View article: A Community Data Set for Comparing Automated Coronal Hole Detection Schemes
A Community Data Set for Comparing Automated Coronal Hole Detection Schemes Open
Automated detection schemes are nowadays the standard approach for locating coronal holes in extreme-UV images from the Solar Dynamics Observatory (SDO). However, factors such as the noisy nature of solar imagery, instrumental effects, and…
View article: Deep Learning-Based Prediction of CME-Driven Shock Standoff Distances in Metric Type II Radio Emissions
Deep Learning-Based Prediction of CME-Driven Shock Standoff Distances in Metric Type II Radio Emissions Open
Type II radio emissions are events followed by coronal mass ejections (CMEs) and accelerated by the CME-driven shock in the heliosphere. This study reports on an estimate of CME-shock standoff distance at the commencement of metric type II…
View article: The observational uncertainty of coronal hole boundaries in automated detection schemes
The observational uncertainty of coronal hole boundaries in automated detection schemes Open
Coronal holes are the observational manifestation of the solar magnetic field open to the heliosphere and are of pivotal importance for our understanding of the origin and acceleration of the solar wind. Observations from space missions su…
View article: High‐Speed Solar Wind Streams in 2007–2008: Turning on the Russell‐McPherron Effect
High‐Speed Solar Wind Streams in 2007–2008: Turning on the Russell‐McPherron Effect Open
Two sequences of five high‐speed solar wind stream/corotating interaction region (HSS/CIR) events were observed at 1 AU in December 2007–2008. These two HSS/CIR sequences had opposite magnetic polarities, and they originated from two persi…