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Radio Observations Point to Likely Explanation for Neutron-Star Merger Phenomena（图）
Radio Observations Point Likely Explanation Neutron-Star Merger
2018/1/10
Three months of observations with the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) have allowed astronomers to zero in on the most likely explanation for what happened in the af...
A CATALOG OF X-RAY POINT SOURCES FROM TWO MEGASECONDS OF CHANDRA OBSERVATIONS OF THE GALACTIC CENTER
center stars
2014/12/23
We present a catalog of 9017 X-ray sources identified in Chandra observations of a 2°× 08 field around the Galactic center. This enlarges the number of known X-ray sources in the region by a factor of...
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.5 deg2 of the COSMOS field (centered at 10 h , +02 o ) with an effective exposure of ~160 ks, and...
Feynman-like Rules for Calculating n-Point Correlators of the Primordial Curvature Perturbation
ing n-Point Correlators Primordial Curvature Perturbation
2011/10/10
A diagrammatic approach to calculate n-point correlators of the primordial curvature perturbation \zeta was developed a few years ago following the spirit of the Feynman rules in Quantum Field Theory....
Characterisation of the non-Gaussianity of radio and IR point-sources at CMB frequencies
ology: Cosmic Microwave Background, large scale structures Galaxiesstatistics, Infrared: galaxies Radio continuum: galaxies Methods: statistical
2011/10/8
The present study focuses on the characterisation of the non-Gaussianity produced by radio point-sources and, for the first time, by infrared sources in the frequency range of the CMB from 30 to 350 G...
The Evolution of Radio Galaxies and X-ray Point Sources in Coma Cluster Progenitors Since z~1.2
Evolution Radio Galaxies Point Sources Cluster Progenitors Since
2011/9/30
Using Chandra imaging spectroscopy and Very Large Array (VLA) L-band radio maps, we have identified radio sources at P_{1.4GHz} >=5x10^{23} W Hz^{-1} and X-ray point sources (XPSs) at L_{0.3-8keV}>=5x...
Panchromatic Observations of SN 2011dh Point to a Compact Progenitor Star
Panchromatic Observations Compact Progenitor Star
2011/9/30
We report the discovery and detailed monitoring of X-ray emission associated with the Type IIb SN 2011dh using data from the Swift and Chandra satellites, placing it among the best studied X-ray super...
Search for neutrino point sources with the IceCube Neutrino Observatory
neutrino point sources the IceCube Neutrino Observatory
2011/1/13
The IceCube Neutrino Observatory is a kilometer-scale detector currently under construction at the South Pole. The full detector will comprise 5,160 photomultipliers (PMTs) deployed on 86 strings from...
REAS3: Monte Carlo simulations of radio emission from cosmic ray air showers using an "end-point" formalism
REAS3 Monte Carlo simulations
2011/1/11
In recent years, the freely available Monte Carlo code REAS for modelling radio emission from cosmic ray air showers has evolved to include the full complexity of air shower physics. However, it turne...
Photometric Catalogue of Quasars and Other Point Sources in the Sloan Digital Sky Survey
astronomical data bases miscellaneous – catalogues – techniques pho-tometric – methods statistical – surveys
2010/11/12
We present a catalogue of about 8.6 million unresolved photometric detections in the Sloan Digital Sky Survey Seventh Data Release classifying them into stars, galaxies and quasars using a machine lea...
We describe a correlation function statistic that quantifies the amount of spatial and kinematic substructure in the stellar halo.We test this statistic using model stellar halo realizations construct...
CMB two- and three-point correlation functions from Alfvén waves
CMB two- and three-point correlation functions Alfvén waves
2011/1/10
We study the cosmic microwave background (CMB) temperature fluctuations non-gaussianity due to the vector mode perturbations (Alfv\'en waves) supported by a stochastic cosmological magnetic field. We ...
It is here argued that the problem of a meaningful defininition of "planet" is best addressed on a dynamical basis; we show that in this way it is possible to obtain a planet de¯nition that is bo...
Effect of Perturbations in Coriolis and Centrifugal Forces on the Nonlinear Stability of Equilibrium Point in Robe's Restricted Circular Three-Body Problem
Perturbations Centrifugal Forces Coriolis three-body problem
2009/9/4
The effect of perturbations in Coriolis and cetrifugal forces on the nonlinear stability of the equilibrium point of the Robe's (1977) restricted circular three-body problem has been studied when the ...
Multipolar Bubbles, Point-Symmetry and Jets in Dying Stars
Multipolar Bubbles Jets Point-Symmetry Dying Stars
2009/6/15
Multipolar Bubbles, Point-Symmetry and Jets in Dying Stars。