most citedThe optically elusive, changing-look active nucleus in NGC 4156

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astro-ph.GA2022★ 7 cited

The optically elusive, changing-look active nucleus in NGC 4156

Giulia Tozzi, Elisabeta Lusso, Lapo Casetti +21

We report on the changing-look nature of the active galactic nucleus (AGN) in the galaxy NGC 4156, as serendipitously discovered thanks to data acquired in 2019 at the Telescopio N…