Results 161 to 170 of about 55,785 (258)

Spectral Appearance of Self-gravitating Disks Powered by Stellar Objects: Universal Effective Temperature in the Optical Continuum and Application to Little Red Dots

The Astrophysical Journal Letters
We revisit the spectral appearance of extended self-gravitating accretion disks surrounding compact central objects such as supermassive black holes. Using dust-poor opacities, we show that all optically thick disk solutions possess a universal outer ...
Yi-Xian Chen, Hanpu Liu, Ruancun Li, Bingjie Wang, Yilun Ma, Yan-Fei Jiang, Jenny E. Greene, Eliot Quataert, Jeremy Goodman   +8 more
doaj   +1 more source

Nucleosynthesis in accretion disks around black holes [PDF]

, 2017
Nucleosynthesis is the mechanism which produces new elements in nuclear reactions. Nuclear reaction rates are highly temperature dependant, and nuclear reactions take place in very hot environments.
Frankel, Neige
core  

The Void Galaxy Survey: Galaxy Evolution and Gas Accretion in Voids

, 2016
Voids represent a unique environment for the study of galaxy evolution, as the lower density environment is expected to result in shorter merger histories and slower evolution of galaxies.
van der Hulst, J. M., Peletier, Reynier F., J. M. Van Der Hulst, Reynier F. Peletier, van de Weygaert, Rien, Beygu, Burcu, Jacqueline H. Van Gorkom, Burcu Beygu, Van De Weygaert, Miguel A. Aragon-calvo, Kreckel, Kathryn, van Gorkom, Jacqueline H., van der Hulst, J. M.; id_orcid, Beygu, Burcu; id_orcid, Kathryn Kreckel, Aragon-Calvo, Miguel A.   +15 more
core   +1 more source

Mapping the dynamics, star-formation rates, and chemical properties of galaxies with integral field spectroscopy [PDF]

, 2005
Major advances in the development of instruments for eight and ten meter class telescopes are revolutionising our understanding of galaxy formation. In particular, Integral Field Spectrographs (which produce a three dimensional {x, y, velocity) map of a ...
Swinbank, Anthony Mark, Swinback, Anthony Mark   +1 more
core  

H i Observations of Giant Low Surface Brightness Galaxies

The Astrophysical Journal
Giant low surface brightness (gLSB) galaxies are galaxies with extremely extended, faint, optical disks over 50 kpc in radius and have high total masses, which can reach 10 ^12 M _⊙ .
Philip Lah, Nikhil Arora, Ivan Yu. Katkov, Joseph D. Gelfand, Anna S. Saburova, Igor V. Chilingarian, Ivan Gerasimov, Damir Gasymov   +7 more
doaj   +1 more source

Occurrence Rates of Accreting Companions from a New Method for Computing Emission-line Survey Sensitivity: Application to the Hα Giant Accreting Protoplanet Survey

The Astronomical Journal
A key scientific goal of exoplanet surveys is to characterize the underlying population of planets in the local galaxy. In particular, the properties of accreting proto planets can inform the rates and physical processes of planet formation. We develop a
Cailin Plunkett, Katherine B. Follette, Gabriel-Dominique Marleau, Eric L. Nielsen   +3 more
doaj   +1 more source

McFACTS III: Compact Binary Mergers from Active Galactic Nucleus Disks over an Entire Synthetic Universe

The Astrophysical Journal
The active galactic nucleus (AGN) channel for the formation of binary black hole (BBH) mergers has been previously studied as a potential formation channel for the merging compact binaries observed by the LIGO–Virgo–KAGRA (LVK) scientific collaboration ...
Vera Delfavero, K. E. Saavik Ford, Barry McKernan, Harrison E. Cook, Kaila Nathaniel, Jake Postiglione, Shawn Ray, Emily McPike, Richard O’Shaughnessy   +8 more
doaj   +1 more source

Electromagnetic counterparts to massive black-hole mergers. [PDF]

Living Rev Relativ, 2022
Bogdanović T, Miller MC, Blecha L.
europepmc   +1 more source

Gas Circulation and Galaxy Evolution

, 2010
Galaxies must form and evolve via the acquisition of gas from the intergalactic environment, however the way this gas accretion takes place is still poorly understood.
FRATERNALI, FILIPPO, Filippo Fraternali, Victor P. Debattista, C. C. Popescu   +3 more
core   +1 more source

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

Nature, 2023
Costantin L, Pérez-González PG, Guo Y, Buttitta C, Jogee S, Bagley MB, Barro G, Kartaltepe JS, Koekemoer AM, Cabello C, Corsini EM, Méndez-Abreu J, de la Vega A, Iyer KG, Bisigello L, Cheng Y, Morelli L, Arrabal Haro P, Buitrago F, Cooper MC, Dekel A, Dickinson M, Finkelstein SL, Giavalisco M, Holwerda BW, Huertas-Company M, Lucas RA, Papovich C, Pirzkal N, Seillé LM, Vega-Ferrero J, Wuyts S, Yung LYA.   +32 more
europepmc   +1 more source