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Strong Rest-UV Emission Lines in a “Little Red Dot” Active Galactic Nucleus at z = 7: Early Supermassive Black Hole Growth alongside Compact Massive Star Formation?

Hollis B. Akins, Caitlin M. Casey, Danielle A. Berg, John Chisholm, Aidan P. Cloonan, Maximilien Franco, Steven L. Finkelstein, Seiji Fujimoto, Anton M. Koekemoer, Vasily Kokorev, Erini Lambrides, Brant Robertson, Anthony J. Taylor, D. A. Coulter, Ori D. Fox, Mitchell Karmen   +15 more
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Lateral distribution cosmic ray muon coincidences up to 36 m. [PDF]

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Kihagi VN, Chege SM, Hashim NO, Kimani NK, Grupen C.   +4 more
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Feedback mechanisms stopping the star formation in a pair of massive galaxies in the early Universe

Pérez-González P, D'Eugenio F, Pino BRD, Perna M, Uebler H, Maiolino R, Arribas S, Lamperti I, Bunker A, Carniani S, Charlot S, Willott C, Böker T, Parlanti E, Scholtz J, Venturi G, Barro G, Costantin L, Navarro IM, Dunlop J, Magee D, Cresci G.   +21 more
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Black hole jets on the scale of the Cosmic Web

Oei MS, Hardcastle MJ, Timmerman R, Gast AR, Botteon A, Rodriguez AC, Stern D, Rivera GC, Weeren RJv, Röttgering HJ, Intema HT, de Gasperin F, Djorgovski S.   +12 more
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Extreme energy in a relaxed galaxy group indicates the bursty nature of AGN feedback

Eckert D, Gastaldello F, Lovisari L, McGee S, Pasini T, Brienza M, Kolokythas K, O'Sullivan E, Simionescu A, Sun M, Bourne M, Chen Y, Cui W, Ettori S, Finoguenov A, Gozaliasl G, Kale R, Mernier F, Oppenheimer B, Schellenberger G, Seppi R, Tempel E.   +21 more
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Ultrafast Outflows: Galaxy-Scale Active Galactic Nucleus Feedback

Ultrafast Outflows: Galaxy-Scale Active Galactic Nucleus Feedback
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A Study on Active Galactic Nucleus Variability

2022
Active Galactic Nuclei (AGNs) are accreting supermassive black holes at the center of galaxies, known for rich spectral features and multi-time scale variability in their electromagnetic emission. The origin of the variability in AGN light curves can be either intrinsic, meaning related processes that take place inside the AGN system, or extrinsic, i.e.
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IC4553: Masers Around an Active Galactic Nucleus

Publications of the Astronomical Society of Australia, 1984
AbstractThe galaxy IC4553 (Arp 220) is a peculiar galaxy having a redshift of 0.02. It has been variously described as consisting of a symbiotic pair of galaxies, as having a highly peculiar pair of nuclei, or as consisting of a nucleus bisected by a dust lane. In addition, it exhibits OH maser emission which is both the most intrinsically luminous (by
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