X-ray emission from SN 2012ca: A Type Ia-CSM supernova explosion in a dense surrounding medium [0.03%]
SN 2012ca 的X射线辐射：致密星周介质中的Ia型超新星爆炸
Christopher D Bochenek,Vikram V Dwarkadas,Jeffrey M Silverman et al.
Christopher D Bochenek et al.
X-ray emission is one of the signposts of circumstellar interaction in supernovae (SNe), but until now, it has been observed only in core-collapse SNe. The level of thermal X-ray emission is a direct measure of the density of the circumstel...
Ella Xi Wang,Thomas Nordlander,Martin Asplund et al.
Ella Xi Wang et al.
Accurately known stellar lithium abundances may be used to shed light on a variety of astrophysical phenomena such as big bang nucleosynthesis, radial migration, ages of stars and stellar clusters, and planet engulfment events. We present a...
Proper motion, spectra, and timing of PSR J1813-1749 using Chandra and NICER [0.03%]
基于钱德拉和尼克斯观测的J1813-1749脉冲星的自行，光谱和定时效应研究
Wynn C G Ho,Sebastien Guillot,P M Saz Parkinson et al.
Wynn C G Ho et al.
PSR J1813-1749 is one of the most energetic rotation-powered pulsars known, producing a pulsar wind nebula (PWN) and gamma-ray and TeV emission, but whose spin period is only measurable in X-ray. We present analysis of two Chandra datasets ...
Sensitivity of helioseismic measurements of normal-mode coupling to flows and sound-speed perturbations [0.03%]
日地声学测量标准模式耦合对流速和音速扰动的敏感度研究
Shravan M Hanasoge,Martin Woodard,H M Antia et al.
Shravan M Hanasoge et al.
In this article, we derive and compute the sensitivity of measurements of coupling between normal modes of oscillation in the Sun to underlying flows. The theory is based on first-born perturbation theory, and the analysis is carried out us...
Return of the Big Glitcher: NICER timing and glitches of PSR J0537-6910 [0.03%]
大脉冲星J0537-6910的回归：NICER观测中的计时与脉冲事件
Wynn C G Ho,Cristóbal M Espinoza,Zaven Arzoumanian et al.
Wynn C G Ho et al.
PSR J0537-6910, also known as the Big Glitcher, is the most prolific glitching pulsar known, and its spin-induced pulsations are only detectable in X-ray. We present results from analysis of 2.7 years of NICER timing observations, from 2017...
Anna-Maree Syme,Laura K McKemmish
Anna-Maree Syme
The cyano radical (CN) is a key molecule across many different factions of astronomy and chemistry. Accurate, empirical rovibronic energy levels with uncertainties are determined for eight doublet states of CN using the marvel (Measured Act...
Predicting the sufficient-statistics power spectrum for galaxy surveys: a recipe for P A*(k) [0.03%]
预测银河系调查的充分统计势能光谱：P A*（k）的配方
Andrew Repp,István Szapudi
Andrew Repp
Future galaxy surveys hope to realize significantly tighter constraints on various cosmological parameters. The higher number densities achieved by these surveys will allow them to probe the smaller scales affected by non-linear clustering....
Alice C Quillen,Katelyn J Wagner,Paul Sánchez
Alice C Quillen
Using a damped mass-spring model, we simulate wobble of spinning homogeneous viscoelastic ellipsoids undergoing non-principal axis rotation. Energy damping rates are measured for oblate and prolate bodies with different spin rates, spin sta...
The frequency of snowline-region planets from four-years of OGLE-MOA-Wise second-generation microlensing [0.03%]
四年来，OGLE-MOA-Wise第二代微透镜中雪线区域行星的频率
Y Shvartzvald,D Maoz,A Udalski et al.
Y Shvartzvald et al.
We present a statistical analysis of the first four seasons from a "second-generation" microlensing survey for extrasolar planets, consisting of near-continuous time coverage of 8 deg2 of the Galactic bulge by the OGLE, MOA, and Wise microl...
Andrew Repp,István Szapudi
Andrew Repp
A reliable model of galaxy bias is necessary for interpreting data from future dense galaxy surveys. Conventional linear and quadratic bias models are unphysical, often predicting negative galaxy densities (δ g < -1) in voids, which potent...