Variability Timescale and Spectral Index of Sgr A* in the Near Infrared: Approximate Bayesian Computation Analysis of the Variability of the Closest Supermassive Black Hole [0.03%]
近红外线中的Sgr A*的变化时间尺度和光谱指数：最近的超大质量黑洞变化的近似贝叶斯计算分析
G Witzel,G Martinez,J Hora et al.
G Witzel et al.
Sagittarius A* (Sgr A*) is the variable radio, near-infrared (NIR), and X-ray source associated with accretion onto the Galactic center black hole. We present an analysis of the most comprehensive NIR variability data set of Sgr A* to date:...
Simultaneous X-Ray and Infrared Observations of Sagittarius A*'s Variability [0.03%]
天蝎座A*的X射线和红外同时观测变异现象研究
H Boyce,D Haggard,G Witzel et al.
H Boyce et al.
Emission from Saggitarius A* is highly variable at both X-ray and infrared (IR) wavelengths. Observations over the last ~20 yr have revealed X-ray flares that rise above a quiescent thermal background about once per day, while faint X-ray f...
Testing The Lamp-Post and Wind Reverberation Models with XMM-Newton Observations of NGC 5506 [0.03%]
用XMM-牛顿对NGC 5506的观测检验灯柱和风回声模型
Abderahmen Zoghbi,Sihem Kalli,Jon M Miller et al.
Abderahmen Zoghbi et al.
The lamp-post geometry is often used to model X-ray data of accreting black holes. Despite its simple assumptions, it has proven to be powerful in inferring fundamental black hole properties such as the spin. Early results of X-ray reverber...
Multiwavelength Light Curves of Two Remarkable Sagittarius A* Flares [0.03%]
两个显著的射手座A* flare的多波长光变曲线
G G Fazio,J L Hora,G Witzel et al.
G G Fazio et al.
Sgr A*, the supermassive black hole (SMBH) at the center of our Milky Way Galaxy, is known to be a variable source of X-ray, near-infrared (NIR), and submillimeter radiation and therefore a prime candidate to study the electromagnetic radia...
High-Contrast Imaging of Intermediate-Mass Giants with Long-Term Radial Velocity Trends [0.03%]
具有长期视向速度变化的中等质量巨星的高对比度成像研究
Tsuguru Ryu,Bun&#x;ei Sato,Masayuki Kuzuhara et al.
Tsuguru Ryu et al.
A radial velocity (RV) survey for intermediate-mass giants has been operated for over a decade at Okayama Astrophysical Observatory (OAO). The OAO survey has revealed that some giants show long-term linear RV accelerations (RV trends), indi...
IRON: A KEY ELEMENT FOR UNDERSTANDING THE ORIGIN AND EVOLUTION OF INTERSTELLAR DUST [0.03%]
铁：理解星际尘埃的起源和演化的一个关键因素
Eli Dwek
Eli Dwek
The origin and depletion of iron differ from all other abundant refractory elements that make up the composition of the interstellar dust. Iron is primarily synthesized in Type Ia supernovae (SNe Ia) and in core collapse supernovae (CCSN), ...
TATOOINE'S FUTURE: THE ECCENTRIC RESPONSE OF KEPLER'S CIRCUMBINARY PLANETS TO COMMON-ENVELOPE EVOLUTION OF THEIR HOST STARS [0.03%]
塔图因的未来：开普勒绕双星行星对其宿主恒星共同包层演化产生的奇特反应
Veselin B Kostov,Keavin Moore,Daniel Tamayo et al.
Veselin B Kostov et al.
Inspired by the recent Kepler discoveries of circumbinary planets orbiting nine close binary stars, we explore the fate of the former as the latter evolve off the main sequence. We combine binary star evolution models with dynamical simulat...
Measurements of cosmic-ray proton and helium spectra from the BESS-Polar long-duration balloon flights over Antarctica [0.03%]
BESS-Polar气球飞行观测的宇宙线质子和氦核能谱测量结果
K Abe,H Fuke,S Haino et al.
K Abe et al.
The BESS-Polar Collaboration measured the energy spectra of cosmic-ray protons and helium during two long-duration balloon flights over Antarctica in December 2004 and December 2007, at substantially different levels of solar modulation. Pr...
Magnetic Field Geometry and Composition Variation in Slow Solar Winds: The Case of Sulfur [0.03%]
太阳风磁结构及组成变化：硫元素案例分析
Natsuha Kuroda,J Martin Laming
Natsuha Kuroda
We present an examination of the first ionization potential (FIP) fractionation scenario, invoking the ponderomotive force in the chromosphere and its implications for the source(s) of slow-speed solar winds by using observations from The A...
J Martin Laming,Angelos Vourlidas,Clarence Korendyke et al.
J Martin Laming et al.
We examine the different element abundances exhibited by the closed loop solar corona and the slow speed solar wind. Both are subject to the first ionization potential (FIP) effect, the enhancement in coronal abundance of elements with FIP ...