搜索结果: 1-15 共查到“理学 envelope”相关记录39条 . 查询时间(0.066 秒)
The large asymmetric HI envelope of the isolated galaxy NGC 864 (CIG 96)
NGC 864 (CIG 96) maximum
2014/12/24
We present an HI synthesis imaging study of NGC 864 (CIG 96), a spiral galaxy well isolated from similarly sized companions, yet presenting an intriguing asymmetry in its integral HI spectrum. The asy...
THE SINGLE-DEGENERATE BINARY ORIGIN OF TYCHO'S SUPERNOVA AS TRACED BY THE STRIPPED ENVELOPE OF THE COMPANION
X-ray arc Tycho's supernova
2014/12/20
We propose that a nonthermal X-ray arc inside the remnant of Tycho's supernova (SN) represents the interaction between the SN ejecta and the companion star's envelope lost in the impact of the explosi...
Determinants for Stop-Transfer and Post-Import Pathways for Protein Targeting to the Chloroplast Inner Envelope Membrane
chloroplast envelope inner envelope protein targeting
2014/12/11
Chloroplast biogenesis relies on the import of thousands of nuclear encoded proteins into the organelle and proper sorting to their sub-organellar compartment. The majority of nucleus-encoded chloropl...
General nonexact oracle inequalities for classes with a subexponential envelope
Statistical learning fast rates of convergence oracle inequalities regularization classification aggregation model selection
2012/6/21
We show that empirical risk minimization procedures and regularized empirical risk minimization procedures satisfy nonexact oracle inequalities in an unbounded framework, under the assumption that the...
Double Compact Objects I: The Significance Of The Common Envelope On Merger Rates
Double Compact Objects Significance Common Envelope Merger Rates
2012/2/23
The development of gravitational wave observatories (Advanced LIGO/Virgo, Einstein Telescope) is proceeding apace, and the direct detection of gravitational waves should be imminent. The last decade o...
Simulating the Common Envelope Phase of a Red Giant Using SPH and Uniform Grid Codes
Simulating Common Envelope Phase Red Giant Using SPH Uniform Grid Codes
2011/10/21
We use three-dimensional hydrodynamical simulations to study the rapid infall phase of the common envelope interaction of a red giant branch star of mass equal to 0.88 \msun and a companion star of ma...
From the Blazar Sequence to the Blazar Envelope: Revisiting the Relativistic Jet Dichotomy in Radio-loud AGN
Blazar Envelope Revisiting Relativistic Jet Dichotomy Radio-loud AGN
2011/10/21
We revisit the concept of a blazar sequence that relates the synchrotron peak frequency ({\nu}peak) in blazars with synchrotron peak luminosity (Lpeak, in {\nu}L{\nu}) using a large sample of radio-lo...
Physical Structure of the Planetary Nebula NGC 3242 from the Hot Bubble to the Nebular Envelope
Physical Structure Planetary Nebul Hot Bubble Nebular Envelope
2011/10/12
One key feature of the interacting stellar winds model of the formation of planetary nebulae (PNe) is the presence of shock-heated stellar wind confined in the central cavities of PNe. This so-called ...
An AMR Study of the Common Envelope Phase of Binary Evolution
AMR Study Common Envelope Phase Binary Evolution
2011/10/12
The hydrodynamic evolution of the common envelope phase of a low mass binary composed of a 1.05 Msun red giant and a 0.6 Msun companion has been followed for five orbits of the system using a high res...
Radio Imaging of the NGC 1333 IRAS 4A Region: Envelope, Disks, and Outflows of a Protostellar Binary System
ISM: individual (NGC 1333 IRAS 4A) — ISM: jets outfl ows — ISM: binaries: general— stars: formation
2011/10/12
The NGC 1333 IRAS 4A protobinary was observed in the 1.3 cm and 6.9 mm continuum and the ammonia and SiO lines, with an angular resolution of about 0.4 arcseconds. The continuum maps show the circumst...
Accretion in the detached post-common-envelope binary LTT 560
binaries: close – Stars: late-type – white dwarfs – Stars: individual: LTT 560 – cataclysmic variables
2011/10/11
In a previous study, we found that the detached post-common-envelope binary LTT 560 displays an Halpha emission line consisting of two anti-phased components. While one of them was clearly caused by s...
Determination of Carrier-Envelope Phase of Relativistic Few-Cycle Laser Pulses by Thomson Backscattering Spectroscopy
Carrier-Envelope Phase ew-Cycle Laser Pulses Thomson Backscattering Spectroscopy
2011/9/2
A novel method is proposed to determine the carrier-envelope phase (CEP) of a relativistic few-cycle laser pulse via the central frequency of the isolated light generated from Thomson backscattering (...
Carrier-envelope phase sensitive inversion in two-level systems
Carrier-envelope phase sensitive two-level systems
2011/9/2
We theoretically study the carrier-envelope phase dependent inversion generated in a two-level system by excitation with a few-cycle pulse. Based on the invariance of the inversion under time reversal...
Modulation Instability of Ultrashort Pulses in Quadratic Nonlinear Media beyond the Slowly Varying Envelope Approximation
Quadratic Nonlinear Media Theoretical model and MI analysis
2011/8/31
We report a modulational instability (MI) analysis of a mathematical model appropriate for ultrashort pulses in cascaded quadratic-cubic nonlinear media beyond the so-called slowly varying envelope ap...
Introducing empirical and probabilistic regional envelope curves into a mixed bounded distribution function
Introducing empirical probabilistic regional envelope curves distribution function
2010/12/22
A novel approach to consider additional spatial information in flood frequency analyses, especially for the estimation of discharges with recurrence intervals larger than 100 years, is presented. For ...