X-class flare on Dec 31, 2023, observed by the Solar Ultraviolet Imaging Telescope on board Aditya-L1
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2025
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| author | Roy, Soumya Tripathi, Durgesh Upendran, Vishal Padinhatteeri, Sreejith Ramaprakash, A. N. N., Nived V. Sankarasubramanian, K. Solanki, Sami K. Sarkar, Janmejoy Gopalakrishnan, Rahul Deogaonkar, Rushikesh Nandy, Dibyendu Banerjee, Dipankar |
| author_facet | Roy, Soumya Tripathi, Durgesh Upendran, Vishal Padinhatteeri, Sreejith Ramaprakash, A. N. N., Nived V. Sankarasubramanian, K. Solanki, Sami K. Sarkar, Janmejoy Gopalakrishnan, Rahul Deogaonkar, Rushikesh Nandy, Dibyendu Banerjee, Dipankar |
| contents | We present the multi-wavelength study of the ejection of a plasma blob from the limb flare SOL2023-12-31T21:36:00 from NOAA 13536 observed by the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1. We use SUIT observations along with those from Atmospheric Imaging Assembly (AIA) on board SDO and Spectrometer/Telescope for Imaging X-rays (STIX) on board Solar Orbiter to infer the kinematics and thermal nature of the ejected blob and its connection to the associated flare. The observations show that the flare was comprised of two eruptions. The blob was ejected during the first eruption and later accelerated to velocities over 1500 km/s measured at a maximum projected height of ~ 178 Mm from the Sun's surface. The acceleration of the ejected plasma blob is co-temporal with the bursty appearance of the hard X-ray light curve recorded by STIX. Radio spectrogram observations from STEREO-A/WAVES and RSTN reveal type III bursts at the same time, indicative of magnetic reconnection. DEM analysis using AIA observations suggests the plasma blob is comprised of cooler and denser plasma in comparison to the ambient corona. To the best of our knowledge, this is the first observation of such a plasma blob in the NUV, providing crucial measurements for eruption thermodynamics. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_04793 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | X-class flare on Dec 31, 2023, observed by the Solar Ultraviolet Imaging Telescope on board Aditya-L1 Roy, Soumya Tripathi, Durgesh Upendran, Vishal Padinhatteeri, Sreejith Ramaprakash, A. N. N., Nived V. Sankarasubramanian, K. Solanki, Sami K. Sarkar, Janmejoy Gopalakrishnan, Rahul Deogaonkar, Rushikesh Nandy, Dibyendu Banerjee, Dipankar Solar and Stellar Astrophysics We present the multi-wavelength study of the ejection of a plasma blob from the limb flare SOL2023-12-31T21:36:00 from NOAA 13536 observed by the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1. We use SUIT observations along with those from Atmospheric Imaging Assembly (AIA) on board SDO and Spectrometer/Telescope for Imaging X-rays (STIX) on board Solar Orbiter to infer the kinematics and thermal nature of the ejected blob and its connection to the associated flare. The observations show that the flare was comprised of two eruptions. The blob was ejected during the first eruption and later accelerated to velocities over 1500 km/s measured at a maximum projected height of ~ 178 Mm from the Sun's surface. The acceleration of the ejected plasma blob is co-temporal with the bursty appearance of the hard X-ray light curve recorded by STIX. Radio spectrogram observations from STEREO-A/WAVES and RSTN reveal type III bursts at the same time, indicative of magnetic reconnection. DEM analysis using AIA observations suggests the plasma blob is comprised of cooler and denser plasma in comparison to the ambient corona. To the best of our knowledge, this is the first observation of such a plasma blob in the NUV, providing crucial measurements for eruption thermodynamics. |
| title | X-class flare on Dec 31, 2023, observed by the Solar Ultraviolet Imaging Telescope on board Aditya-L1 |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2504.04793 |