搜索结果: 1-15 共查到“星系与宇宙学 Black Holes”相关记录15条 . 查询时间(0.156 秒)
Cosmic Magnifying Lens Reveals Inner Jets of Black Holes（图）
Cosmic Magnifying Lens Inner Jets Black Holes
2017/9/5
"We have known about the existence of these clumps of material streaming along black hole jets, and that they move close to the speed of light, but not much is known about their internal structure or ...
Primordial Black Holes May Have Helped to Forge Heavy Elements（图）
Primordial Black Holes Forge Heavy Elements
2017/9/4
Astronomers like to say we are the byproducts of stars, stellar furnaces that long ago fused hydrogen and helium into the elements needed for life through the process of stellar nucleosynthesis.As the...
Astronomers Detect Orbital Motion in Pair of Supermassive Black Holes
Astronomers Orbital Motion Supermassive Black Holes
2017/7/24
Using the supersharp radio “vision” of the National Science Foundation’s Very Long Baseline Array (VLBA), astronomers have made the first detection of orbital motion in a pair of supermassive black ho...
AGN Reverberation Mapping: the pc Scale Garden of Massive Black Holes
Active Galactic Nuclei RM for cosmology
2016/7/22
Reverberation of Active Galactic Nuclei (AGNs) is delivering information of parsec scale structure of galactic nuclei from black hole accretion disks, broad line regions to the inner edge of dusty tor...
Pairs of Supermassive Black Holes in Galaxies May Be Rarer Than Previously Thought（图）
Supermassive Black Holes Galaxies Previously Thought
2015/9/25
There may be fewer pairs of supermassive black holes orbiting each other at the cores of giant galaxies than previously thought, according to a new study by astronomers who analyzed data from the Nati...
Neutral and charged matter in equilibrium with black holes
Neutral charged matter equilibrium black holes
2011/10/14
We study the conditions of a possible static equilibrium between spherically symmetric, electrically charged or neutral black holes and ambient matter. The following kinds of matter are considered: (1...
Static and spherically symmetric black holes in $f(R)$ theories
Static spherically symmetric black holes theories
2011/10/14
We study some features of static and spherically symmetric solutions (SSS) with a horizon in $f(R)$ theories of gravitation by means of a near-horizon analysis. A necessary condition for an $f(R)$ the...
The mass function of black holes at 1comparison of models with observations
mass function black holes comparison models observations
2011/10/19
In this paper, we compare the observationally derived black hole mass function (BHMF) of luminous broad-line quasars (BLQSOs) at 1he Sloan Digital Sky Survey (SDSS) presented in Kel...
Using HST observations of 147 host galaxies of low-mass black holes (BHs), we systematically study the structures and scaling relations of these active galaxies. Our sample is selected to have central...
Black Hole Mass and Bulge Luminosity for Low-mass Black Holes
Black Hole Mass Bulge Luminosity Low-mass Black Holes
2011/10/12
We study the scaling between bulge magnitude and central black hole (BH) mass in galaxies with virial BH masses < 10^6 solar mass. Based on careful image decomposition of a snapshot Hubble Space Teles...
Energy and angular momentum of dilaton black holes
Energy angular momentum dilaton black holes
2009/7/10
Energy and angular momentum of dilaton black holes。
Gravitomagnetism and angular momenta of black-holes。
Star formation near supermassive black holes。
Obscured and unobscured growth of supermassive black holes
unobscured growth supermassive black holes
2009/6/30
Obscured and unobscured growth of supermassive black holes。
LARGE-SCALE DYNAMO OF ACCRETION DISKS AROUND SUPERMASSIVE NONROTATING BLACK HOLES
Galaxies active-Accretion, accretion disks-MHD-Magnetic fields
2009/2/18
LARGE-SCALE DYNAMO OF ACCRETION DISKS AROUND SUPERMASSIVE NONROTATING BLACK HOLES。