SoLEXS - A low-energy X-ray Spectrometer for Solar Coronal Studies

TL;DR

SoLEXS is a proposed low-energy X-ray spectrometer for solar coronal studies on Aditya-1, aiming to enhance understanding of solar heating, flares, and coronal composition with high spectral resolution.

Contribution

It introduces a high-resolution soft X-ray spectrometer designed to complement existing solar observation instruments on Aditya-1, enabling new insights into solar phenomena.

Findings

Designed to measure soft X-ray spectra with high resolution

Aims to study coronal heating, flares, and abundances

Can provide flare triggers for the main payload

Abstract

A Solar Low-energy X-ray Spectrometer (SoLEXS), a high spectral resolution (\leq 250 eV at 5.9 keV) instrument with soft X-ray energy coverage (\leq 1.5 keV), is being proposed as an additional payload on-board Aditya-1. The motivation behind this is to complement the visible emission line space solar coronagraph, the main payload on Aditya-1. The science goals in which SoLEXS data will compliment the main payload are: (i) Understanding of DC heating mechanism, (ii) Studies on the Flare-CME relations from the same platform, (iii) Independent and accurate estimates of temperature and emission measure at the flaring sites, and (iv) Coronal abundance studies and its variations during flares. Apart from these four major science goals, this instrument in principle can provide a flare trigger to the main payload and help in optimizing the on-board memory storage.