Results 131 to 140 of about 17,110 (224)

Reverberation and photoionization estimates of the Broad Line Region Radius in Low-z Quasars

, 2013
Black Hole Mass estimation in quasars, especially at high redshift, involves use of single epoch spectra with s/n and resolution that permit accurate measurement of the width of a broad line assumed to be a reliable virial estimator.
CASTALIA ALENKA NEGRETE PEÑALOZA
core  

New insights on the quasars central region from microlensed quasars

, 2012
Our detailed understanding of the working engine of quasars is still incomplete. Several basic questions remain such as: How is the supermassive black hole in the center of quasars fed ? What is the geometry and kinematics of the gas flow near the black
Meylan, George, Sluse, Dominique, Hutsemekers, Damien, Eigenbrod, Alexander, Wambsganss, Joachim, Courbin, Frederic   +5 more
core   +1 more source

Pushing the limits of detectability: mixed dark matter from strong gravitational lenses. [PDF]

Mon Not R Astron Soc, 2023
Keeley RE, Nierenberg AM, Gilman D, Birrer S, Benson A, Treu T.   +5 more
europepmc   +1 more source

Solar peculiar motion inferred from dipole anisotropy in redshift distribution of quasars appears to lie along the Galactic Centre direction. [PDF]

Sci Rep
Singal AK.
europepmc   +1 more source

Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs. [PDF]

Sci Adv, 2022
He Z, Liu G, Wang T, Mou G, Green R, Bian W, Wang H, Ho LC, Sun M, Shen L, Arav N, Chen C, Wu Q, Guo H, Lin Z, Li J, Yi W.   +16 more
europepmc   +1 more source

Overmassive black holes and little red dots naturally form in simulations. [PDF]

Nature
Chon S, Hirano S, Ishiyama T, Chang SJ, Springel V.   +4 more
europepmc   +1 more source

Imaging black holes: a VLBI success story. [PDF]

Astrophys Space Sci
Zensus JA.
europepmc   +1 more source

The Ellis-Baldwin test. [PDF]

Philos Trans A Math Phys Eng Sci
Secrest NJ.
europepmc   +1 more source

First rest-frame infrared spectrum of a z > 7 quasar: MIRI-MRS observations of J1120+0641

, 2023
Bosman S, Álvarez-Márquez J, Colina L, Walter F, Herrero AA, Ward M, Östlin G, Greve T, Wright G, Bik A, Boogaard L, Caputi K, Costantin L, Eckart A, Marin MG, Gillman S, Güdel M, Henning T, Hjorth J, Iani E, Ilbert O, Jermann I, Labiano A, Lagage P, Langeroodi D, Peißker F, Ray T, Rinaldi P, Topinka M, Dishoeck Ev, Werf Pvd, Vandenbussche B.   +31 more
europepmc   +1 more source

Strong gravitational lenses from the Vera C. Rubin Observatory. [PDF]

Philos Trans A Math Phys Eng Sci
Shajib AJ, Smith GP, Birrer S, Verma A, Arendse N, Collett T, Daylan T, Serjeant S, LSST Strong Lensing Science Collaboration.   +8 more
europepmc   +1 more source