Solar/Stellar Atmospheric Tomography with mm-radio Snapshot Spectroscopic Imaging
Item Type:Conference Paper
Citation:Mohan, A., Solar/Stellar Atmospheric Tomography with mm-radio Snapshot Spectroscopic Imaging, In C. K. Louis, C. M. Jackman, G. Fischer, A. H. Sulaiman, P. Zucca, Dublin Institute for Advanced Studies (eds.), Planetary, Solar and Heliospheric Radio Emissions IX, 2023
Mohan_2023_PRE9_accepted.pdf (Accepted for publication (author's copy) - Peer Reviewed) 2.322Mb
Millimeter (mm) frequencies are primarily sensitive to thermal emission from layers across the stellar chromosphere up to the transition region, while metre-wave (radio) frequencies probe the coronal heights. Together the mm and radio band spectroscopic snapshot imaging enables the tomographic exploration of the active atmospheric layers of the cool main-sequence stars (spectral type: FGKM), including our Sun. Sensitive modern mm and radio interferometers let us explore solar/stellar activity covering a range of energy scales at sub-second and sub-MHz resolution over wide operational bandwidths. The superior uv-coverage of these instruments facilitate high dynamic range imaging, letting us explore the morphological evolution of even energetically weak events on the Sun at fine spectro-temporal cadence. This article will introduce the current advancements, the data analysis challenges and available tools. The impact of these tools and novel data in field of solar/stellar research will be summarised with future prospects.
Author: Mohan, A.
Type of material:Conference Paper
Series/Report no:Planetary, Solar and Heliospheric Radio Emissions IX;
Availability:Full text available