Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Reines, Amy"'
We present a systematic search for radio active galactic nuclei (AGNs) in dwarf galaxies using recent observations taken by the Very Large Array Sky Survey (VLASS). To select these objects, we first establish a criterion to identify radio-excess AGNs
Externí odkaz:
http://arxiv.org/abs/2411.14535
Autor:
Kimbrell, Seth, Reines, Amy
We present the discovery of a luminous X-ray AGN in the dwarf galaxy merger RGG 66. The black hole is predicted to have a mass of $M_{\rm BH} \sim 10^{5.4} M_\odot$ and to be radiating close to its Eddington limit ($L_{\rm bol}/L_{\rm Edd} \sim 0.75$
Externí odkaz:
http://arxiv.org/abs/2409.10630
The ability to accurately discern active massive black holes (BHs) in nearby dwarf galaxies is paramount to understanding the origins and processes of "seed" BHs in the early Universe. We present Chandra X-ray Observatory observations of a sample of
Externí odkaz:
http://arxiv.org/abs/2409.04514
Autor:
Sturm, Megan R., Reines, Amy E.
We investigate the relation between black hole (BH) mass and bulge stellar mass for a sample of 117 local ($z \sim 0$) galaxies hosting low-luminosity, broad-line active galactic nuclei (AGN). Our sample comes from Reines & Volonteri (2015), who foun
Externí odkaz:
http://arxiv.org/abs/2406.06675
Henize 2-10 is a dwarf galaxy experiencing positive black hole (BH) feedback from a radio-detected low-luminosity active galactic nucleus. Previous Green Bank Telescope (GBT) observations detected a H2O "kilomaser" in Henize 2-10, but the low angular
Externí odkaz:
http://arxiv.org/abs/2405.11037
Autor:
Gim, Hansung B., Reines, Amy E.
Henize 2-10 is a dwarf starburst galaxy hosting a $\sim10^{6}~M_{\odot}$ black hole (BH) that is driving an ionized outflow and triggering star formation within the central $\sim100$ pc of the galaxy. Here we present ALMA continuum observations from
Externí odkaz:
http://arxiv.org/abs/2401.02486
Autor:
Gallo, Elena, Hodges-Kluck, Edmund, Treu, Tommaso, Baldassare, Vivienne, Seth, Anil, Greene, Jenny, Pacucci, Fabio, Plotkin, Richard, Reines, Amy, Wilkes, Belinda
The fraction of local dwarf galaxies that hosts massive black holes is arguably the cleanest diagnostic of the dominant seed formation mechanism of today's supermassive black holes. A 5 per cent constraint on this quantity can be achieved with AXIS o
Externí odkaz:
http://arxiv.org/abs/2311.09161
We study the morphologies and structures of 57 dwarf galaxies that are representative of the general population of dwarf galaxies, and compare their demographics to a sample of dwarf galaxies hosting optically-selected AGNs. The two samples span the
Externí odkaz:
http://arxiv.org/abs/2309.11574
The first billion years of the Universe has been a pivotal time: stars, black holes (BHs), and galaxies formed and assembled, sowing the seeds of galaxies as we know them today. Detecting, identifying, and understanding the first galaxies and BHs is
Externí odkaz:
http://hdl.handle.net/10150/626181
http://arizona.openrepository.com/arizona/handle/10150/626181
http://arizona.openrepository.com/arizona/handle/10150/626181
Searching for active galactic nuclei (AGNs) in dwarf galaxies is important for our understanding of the seed black holes that formed in the early universe. Here, we test infrared selection methods for AGN activity at low galaxy masses. Our parent sam
Externí odkaz:
http://hdl.handle.net/10150/622448
http://arizona.openrepository.com/arizona/handle/10150/622448
http://arizona.openrepository.com/arizona/handle/10150/622448