David Pooley,J Craig Wheeler,Jozsef Vinkó et al.
David Pooley et al.
The interaction between the expanding supernova (SN) ejecta with the circumstellar material (CSM) that was expelled from the progenitor prior to explosion is a long-sought phenomenon, yet observational evidence is scarce. Here we confirm a ...
Excavating the Explosion and Progenitor Properties of Type IIP Supernovae via Modeling of their Optical Light Curves [0.03%]
基于IIP型超新星光学光曲线建模挖掘其爆炸和前身星性质
Wilson Ricks,Vikram V Dwarkadas
Wilson Ricks
The progenitors of Type IIP supernovae (SNe) are known to be red supergiants, but their properties are not well determined. We employ hydrodynamical modeling to investigate the explosion characteristics of eight Type IIP SNe and the propert...
The Chemistry of Cosmic Dust Analogues from C, C2, and C2H2 in C-Rich Circumstellar Envelopes [0.03%]
富碳 circumstellar 包层中 cosmic 尘埃模拟物的化学组成：C，C₂和 C₂H₂
Gonzalo Santoro,Lidia Martínez,Koen Lauwaet et al.
Gonzalo Santoro et al.
Interstellar carbonaceous dust is mainly formed in the innermost regions of circumstellar envelopes around carbon-rich asymptotic giant branch (AGB) stars. In these highly chemically stratified regions, atomic and diatomic carbon, along wit...
Albedos, Equilibrium Temperatures, and Surface Temperatures of Habitable Planets [0.03%]
宜居行星的反照率、平衡温度和表面温度
Anthony D Del Genio,Nancy Y Kiang,Michael J Way et al.
Anthony D Del Genio et al.
The potential habitability of known exoplanets is often categorized by a nominal equilibrium temperature assuming a Bond albedo of either ∼0.3, similar to Earth, or 0. As an indicator of habitability, this leaves much to be desired, becaus...
Hydrodynamic Escape of Hot Protoatmospheres During a Star's X-ray and Extreme Ultraviolet Saturation May Limit Rocky Exoplanets to ~1.8 Earth Radii [0.03%]
恒星X射线和极紫外辐射饱和期间热原大气的水动力逃逸可能将岩质系外行星限制在~1.8地球半径范围内
Owen R Lehmer,David C Catling
Owen R Lehmer
Recent observations and analysis of low mass (
G Saral,J L Hora,M Audard et al.
G Saral et al.
We present the results of our investigation of the star-forming complexes W51 and W43, two of the brightest in the first Galactic quadrant. In order to determine the young stellar object (YSO) populations in W51 and W43 we used color-magnit...
G Saral,J L Hora,S E Willis et al.
G Saral et al.
We present the initial results of our investigation of the star-forming complex W49, one of the youngest and most luminous massive star-forming regions in our Galaxy. We used Spitzer/Infrared Array Camera (IRAC) data to investigate massive ...
Non-Maxwellian velocity distribution functions for Coulombic systems out of equilibrium [0.03%]
非麦克斯韦速度分布函数用于非平衡库仑系统
Brent M Randol
Brent M Randol
The velocity distribution function (VDF) of ions in the solar wind, as observed by spacecraft at 1 AU and elsewhere in the heliosphere, exhibits a consistent trend: at low energies in the solar wind frame, the distribution is largely Maxwel...
A Zoghbi,J M Miller,E Cackett
A Zoghbi
NGC 4151 is the brightest Seyfert 1 nucleus in X-rays. It was the first object to show short time delays in the Fe K band, which were attributed to relativistic reverberation, providing a new tool for probing regions at the black hole scale...
Elaine Winston,Joseph Hora,Robert Gutermuth et al.
Elaine Winston et al.
In this paper we undertake a study of the 21 deg2 SMOG field, a Spitzer cryogenic mission Legacy program to map a region of the outer Milky Way toward the Perseus and outer spiral arms with the IRAC and MIPS instruments. We identify 4648 YS...