搜索结果: 1-12 共查到“高能天体物理学 massive”相关记录12条 . 查询时间(0.031 秒)
Early massive clusters and the bouncing coupled dark energy
dark energy – dark matter – cosmology: theory – galaxies: formation –methods:N-body simulations
2011/10/21
The abundance of the most massive objects in the Universe at different epochs is a very sensitive probe of the cosmic background evolution and of the growth history of density perturbations, and could...
Products from massive-star nucleosynthesis have been measured with SPI on INTEGRAL: Characteristic gamma-ray lines from radioactive decays of long-lived 26Al and 60Fe isotopes, and from 44Ti decay (de...
The revival of an explosion mechanism of massive stars - the quark hadron phase transition during the early post bounce phase of core collapse supernovae
Core collapse supernovae protoneutron stars general relativity radiation hydrodynamics
2010/11/16
We explore explosions of massive stars, which are triggered via the quark hadron phase transition during the early post bounce phase of core collapse supernovae. The onset of quark matter is favored u...
Is protostellar heating sufficient to halt fragmentation? A case study of the massive protocluster G8.68-0.37
stars formation — submillimeter — stars: winds outflows — ISM clouds — stars
2010/11/11
If star formation proceeds by thermal fragmentation and the subsequent gravitational collapse of the individual fragments, how is it possible to form fragments massive enough for O and B stars in a ty...
Young Stellar Groups and Their Most Massive Stars
Young Stellar Groups Their Most Massive Stars
2010/11/11
We analyze the masses and spatial distributions of fourteen young stellar groups in Taurus, Lupus3, ChaI, and IC348. These nearby groups, which typically contain 20 to 40 members, have membership cata...
Radio emission from the massive stars in Westerlund 1
Radio emission massive stars in Westerlund 1
2010/11/10
The diverse massive stellar population in the young massive clusterWesterlund 1 (Wd 1)provides an ideal laboratory to observe and constrain mass-loss processes throughout the transitional phase of mas...
Identification of a Population of X-ray Emitting Massive Stars in the Galactic Plane
stars: winds outflows – stars Wolf-Rayet – supergiants – X-rays binaries – X-rays
2010/11/16
We present X-ray, infrared, optical and radio observations of four previously unidentified Galactic plane Xray sources, AX J163252–4746, AX J184738–0156, AX J144701–5919 and AX J144547–5931. Detection...
Determining the Parameters of Massive Protostellar Clouds via Radiative Transfer Modeling
Parameters of Massive Protostellar Clouds Radiative Transfer Modeling
2010/11/16
A one-dimensional method for reconstructing the structure of prestellar and proto-stellar clouds is presented. The method is based on radiative transfer computations and a comparison of theoretical an...
The most recent burst of Star Formation in the Massive Elliptical Galaxy NGC 1052
galaxies individual NGC 1052 – galaxies interactions – galaxies nuclei –galaxies
2010/11/15
High-spatial resolution near-infrared (NIR) images of the central 2424 arcsec2(22 kpc2) of the elliptical galaxy NGC 1052 reveal a total of 25 compact sources randomly distributed in the region. Fi...
Simultaneous Falsification of LCDM and Quintessence with Massive, Distant Clusters
Falsification of LCDM Quintessence with Massive Distant Clusters
2010/11/9
Observation of even a single massive cluster, especially at high redshift, can falsify the standard cosmological framework consisting of a cosmological constant and cold dark matter (CDM) with Gaussi...
The interactions of winds from massive young stellar objects
interactions of winds massive young stellar objects
2010/11/10
The supersonic stellar and disk winds possessed by massive young stellar objects will produce
shocks when they collide against the interior of a pre-existing bipolar cavity (resulting from an earlier...
Cosmological evolution of massive black holes: effects of Eddington ratio distribution and quasar lifetime
Galaxy Astrophysics (astro-ph.GA)
2010/12/22
A power-law time-dependent lightcurve for active galactic nuclei (AGNs) is expected by the self-regulated black hole growth scenario, in which the feedback of AGNs expels gas and shut down accretion. ...