361 citations · 824 across the 14 of their papers we have counts for
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Solar ALMA observations: constraining the chromosphere above sunspots
Maria Loukitcheva, Kazumasa Iwai, Sami K. Solanki +2
We present the first high-resolution Atacama Large Millimeter/Submillimeter Array (ALMA) observations of a sunspot at wavelengths of 1.3 mm and 3 mm, obtained during the solar ALMA…
Variation of Solar Microwave Spectrum in the Last Half Century
M. Shimojo, K. Iwai, A. Asai +3
The total solar fluxes at 1, 2, 3.75, and 9.4 GHz were observed continuously from 1957 to 1994 at Toyokawa, and from 1994 until now at Nobeyama, Japan with the current Nobeyama Rad…
A First Comparison of Millimeter Continuum and Mg II Ultraviolet Line Emission from the Solar Chromosphere
T. S. Bastian, G. Chintzoglou, B. De Pontieu +4
We present joint observations of the Sun by the Atacama Large Millimeter/submillimeter Array (ALMA) and the Interface Region Imaging Spectrograph (IRIS). The observations were made…
Observing the Sun with the Atacama Large Millimeter-submillimeter Array (ALMA): Fast-Scan Single-Dish Mapping
S. M. White, K. Iwai, N. M. Phillips +31
The Atacama Large Millimeter-submillimeter Array (ALMA) radio telescope has commenced science observations of the Sun starting in late 2016. Since the Sun is much larger than the f…
ALMA Discovery of Solar Umbral Brightness Enhancement at λ=3 mm
Kazumasa Iwai, Maria Loukitcheva, Masumi Shimojo +2
We report the discovery of a brightness enhancement in the center of a large sunspot umbra at a wavelength of 3 mm using the Atacama Large Millimeter/sub-millimeter Array (ALMA). S…
First ALMA Observation of a Solar Plasmoid Ejection from an X-ray Bright Point
M. Shimojo, H. S. Hudson, S. M. White +2
Eruptive phenomena such as plasmoid ejections or jets are an important feature of solar activity with the potential for improving our understanding of the dynamics of the solar atm…