搜索结果: 1-14 共查到“星系与宇宙学 accretion”相关记录14条 . 查询时间(0.042 秒)
Chandra Observations of the Bursting X-Ray Transient SAX J1747.0–2853 during Low-Level Accretion Activity
SAX J1747.0–2853 stars
2014/12/26
We present Chandra/ACIS observations of the bursting X-ray transient SAX J1747.0-2853 performed on 2001 July 18. We detected a bright source at the position of R.A. = 17h47m02.s60 and decl. = -28°52'5...
Accretion, feedback and galaxy bimodality: a comparison of the GalICS semi-analytic model and cosmological SPH simulations
cooling fl ows evolution
2014/12/23
We compare the galaxy population of a smoothed particle hydrodynamics (SPH) simulation to those predicted by the GalICS (Galaxies In Cosmological Simulations) N-body + semi-analytic model and a stripp...
Feedback and Recycled Wind Accretion: Assembling the z = 0 Galaxy Mass Function
Feedback and Recycled Wind Galaxy Mass
2014/12/22
We analyse cosmological hydrodynamic simulations that include observationally-constrained prescriptions for galactic outflows. If these simulated winds accurately represent winds in the real Universe,...
DETECTION OF STRONG MILLIMETER EMISSION FROM THE CIRCUMSTELLAR DUST DISK AROUND V1094 SCO: COLD AND MASSIVE DISK AROUND A T TAURI STAR IN A QUIESCENT ACCRETION PHASE?
spectral energy compact dust emission
2014/12/20
We present the discovery of a cold massive dust disk around the T Tauri star V1094 Sco in the Lupus molecular cloud from the 1.1 mm continuum observations with AzTEC on ASTE. A compact (r 320 AU) cont...
One-micron spectroscopic studies of accretion and outflow in T Tauri stars
High resolution spectrum Classical T Taurus Stars Spectrum Air calibrator The stars
2014/12/9
High-resolution spectroscopy of classical T Tauri stars (CTTS) at one micron yields new insight into the interaction of accretion disks, outflowing gas, and the central stars. Eighty-one 0.95–1.12 μm ...
Dark Matter Halos: Assembly, Clustering and Sub-halo Accretion
Dark matter Galaxy formation Halos
2014/12/9
I carried out systematic studies on the assembly history of dark matter halos, using numerical simulations and semi-analytical methods. First, I look into dark halo mass assembly history. I confirmed ...
Can Self Organized Critical Accretion Disks Generate a Log-normal Emission Variability in AGN?
Accretion accretion disks
2011/9/29
Active Galactic Nuclei (AGN), such as Seyfert galaxies, quasars, etc., show light variations in all wavelength bands, with various amplitude and in many time scales. The variations usually look errati...
Accretion model of a rotating gas sphere onto a Schwarzschild black hole
rotating gas sphere Schwarzschild black hole
2009/7/9
Accretion model of a rotating gas sphere onto a Schwarzschild black hole。
A simple accretion model of a rotating gas sphere onto a Schwarzschild black hole
gas sphere Schwarzschild black hole
2009/7/9
A simple accretion model of a rotating gas sphere onto a Schwarzschild black hole。
WWW Database of Models of Accretion Disks Irradiated by the Central Star
WWW Database Central Star Disks Irradiated
2009/6/25
WWW Database of Models of Accretion Disks Irradiated by the Central Star。
Magnetic Accretion Onto T Tauri Stars。
Angular Momentum Transport in Quasi-Keplerian Accretion Disks
Accretion viscosity disks angular momentum
2009/5/19
We reexamine arguments advanced by Hayashi & Matsuda
(2001), who claim that several simple, physically motivated derivations
based on mean free path theory for calculating the viscous torque in a
q...
BROWN DWARF ACCRETION：NONCONVENTIONAL STAR FORMATION OVER VERY LONG TIMESCALES
Stars low-mass,brown dwarfs-Galaxy evolution-ISM general
2009/2/23
We investigate the process of accretion of interstellar gas by the
Galactic population of brown dwarfs over very long timescales typical for physical
eschatology. In particular, we use the classical...
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。