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astro-ph.HE2025
Broad-band temporal and spectral study of TeV blazar TXS 0518+211
Avik Kumar Das, Pankaj Kushwaha, Veeresh Singh +3
We present a long-term broad-band temporal and spectral study of a TeV BL Lac source TXS 0518+211 by analyzing nearly 16 years (MJD 54682 -- 60670) of simultaneous optical, UV and…
astro-ph.GA2025★ 2 cited
Intra-night optical variability and radio characteristics of extremely radio-loud narrow-line Seyfert 1 galaxies
Veeresh Singh, Parveen Kumar, Avik Kumar Das +1
Narrow-line Seyfert 1 galaxies (NLS1s) are generally known to be radio-quiet Active Galactic Nuclei (AGN), but a tiny subset of them are found to be extremely radio-loud with radio…