Radio Follow-up Observations of a Weak-line Quasar Exhibiting Remarkable X-Ray Variability

SDSS J1539+3954 ( z  ≈ 1.935), a radio-quiet weak-line quasar (WLQ), exhibited exceptional X-ray variability in 2019–2020, with its X-ray flux increasing by over 20 times from 2013 to 2019 and subsequently dropping by at least a factor of 9 in 2020. Motivated by the empirical correlations between X-...

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Detalhes bibliográficos

Principais autores:	Ayushi Chhipa, M. Vivek, Nayana A. J., P. Kharb, W. N. Brandt, Preshanth Jagannathan, Janhavi Baghel, Savithri H. Ezhikode, C. H. Ishwara-Chandra
Formato:	Artigo
Idioma:	Inglês
Publicado em:	IOP Publishing 2025-01-01
coleção:	The Astrophysical Journal
Assuntos:	Active galaxies Active galactic nuclei Quasars Radio sources Radio quiet quasars
Acesso em linha:	https://doi.org/10.3847/1538-4357/ae1957
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