搜索结果: 1-13 共查到“天体物理学 outflows”相关记录13条 . 查询时间(0.046 秒)
Do Fermi-LAT observations really imply very large Lorentz factors in GRB outflows ?
gamma-ray burst: general gamma-ray burst: individual: GRB 080916C radiative transfer radiation mechanisms: non-thermal
2011/10/20
Recent detections of GeV photons in a few GRBs by Fermi-LAT imply huge bulk Lorentz factors to avoid a large gamma gamma optical depth at high energy. Estimates can be as high as Gamma ~ 1000 in the m...
Anisotropic AGN Outflows and Enrichment of the Intergalactic Medium. II. Metallicity
cosmology — galaxies active — galaxies jets — intergalactic medium — methods
2010/11/15
We investigate the large-scale influence of outflows from AGNs in enriching the IGM with metals in a cosmological context. We combine cosmological simulations of large-scale structure formation with a...
X-ray Outflows in the Swift Burst Alert Detected Seyfert 1s
galaxies active—galaxies Seyfert—X-rays galaxies
2010/11/12
Previous surveys of outflows in low-redshift active galactic nuclei (AGN) have relied on the analysis of sources selected primarily for their optical/X-ray brightness, and are therefore biased. Toward...
On the source of dense outflows from T Tauri Stars. and III. Winds driven from the star-disc shear layer
stars pre-main-sequence stars: winds outflows stars circumstellar matter – stars formation
2010/11/11
Ultraviolet observations of classical T Tauri Stars (cTTSs) have shown that there is a hot (Te ≃ 80, 000 K) and dense (ne ≃ 1010 cm−3) component associated with the large scale jet. ...
The Ultraviolet-X-ray connection in AGN outflows
X-ray Spectroscopy UV spectroscopy Active Galactic Nuclei absorption lines
2010/11/15
In this paper I review the recent progress in understanding the physics of the gas outflowing from active galactic nuclei and its impact on the surrounding environment, using the combined information ...
High Velocity Molecular Outflows In Massive Cluster Forming Region G10.6-0.4
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/4
We report the arcsecond resolution SMA observations of the $^{12}$CO (2-1) transition in the massive cluster forming region G10.6-0.4. In these observations, the high velocity $^{12}$CO emission is re...
The Molecular Outflows in the rho Ophiuchi Main Cloud: Implications For Turbulence Generation
Solar and Stellar Astrophysics (astro-ph.SR) Galaxy Astrophysics (astro-ph.GA)
2010/12/29
We present the results of CO (J=3-2) and CO (J=1-0) mapping observations toward the active cluster forming clump, L1688, in the rho Ophiuchi molecular cloud.
Galactic Coronae in the Intracluster Environment: Semi-confined Stellar-feedback-driven Outflows
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/24
Recently X-ray observations have shown the common presence of compact galactic coronae around intermediate-mass spheroid galaxies embedded in the intracluster/intragroup medium (ICM). We conduct 2-D h...
Hierarchical formation of bulgeless galaxies: Why outflows have low angular momentum
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
Using high resolution, fully cosmological smoothed particle hydro-dynamical simulations of dwarf galaxies in a Lambda cold dark matter Universe, we show how baryons attain a final angular momentum dis...
Can Ionized Outflows in AGN Produce Important Feedback Effects? The Case of NGC 4051
Ionized Outflows NGC 4051
2009/7/9
Can Ionized Outflows in AGN Produce Important Feedback Effects? The Case of NGC 4051。
Observations of Massive Supersonic Outflows in Highly Luminous H II Regions
Massive Supersonic Outflows Highly Luminous H II Regions
2009/6/16
Observations of Massive Supersonic Outflows in Highly Luminous H II Regions。
Magnetized astrophysical outflows：cradle to grave, source to effect
astrophysical outflows grave
2009/6/10
Magnetized astrophysical outflows：cradle to grave, source to effect。
VLA Detection of the Exciting Sources of the HH 211 and HH 68 Outflows
HH 211 HH 68 Outflows VLA Detection
2009/6/9
VLA Detection of the Exciting Sources of the HH 211 and HH 68 Outflows。