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Astronomers see carbon dioxide on planet outside solar system for first time（图）
詹姆斯韦伯 太空望远镜 系外行星 大气
2023/6/25
Scientists using NASA’s James Webb Space Telescope have captured definitive evidence of carbon dioxide in the atmosphere of a planet beyond our solar system.
Computers can learn to find solar flares in vast streams of images and help scientists issue timely space weather alerts, according to a new NSF-funded study. The research was published in the Journal...
Collisional evolution and reddening of asteroid surfaces–I. The problem of conflicting time-scales and the role of size-dependent effects
meteorites meteors meteoroids–minor planets asteroids: general
2015/12/25
Space weathering is the generic term used for processes that modify the optical properties of surfaces of atmosphereless rocky bodies under exposure to the space environment. The general agreement abo...
SwRI-led team telescope effort reveals asteroid’s size for the first time（图）
asteroid’s size team telescope
2014/12/1
Boulder, Colo. — Nov. 10 — When the double asteroid Patroclus-Menoetius passed directly in front of a star on the night of Oct. 20, a team of volunteer astronomers across the U.S. was waiting.
Dynamical Opacity-Sampling Models of Mira Variables. II: Time-Dependent Atmospheric Structure and Observable Properties of 4 M-Type Model Series
stars: AGB and post-AGB, stars: atmospheres, stars: variables: other, stars: mass loss
2011/10/11
We present 4 model series of the CODEX dynamical opacity-sampling models of Mira variables with solar abundances, designed to have parameters similar to $o$ Cet, R Leo and R Cas. We demonstrate that t...
Evidence for Time Evolution in the Exciting Source of the Expanding Water Maser Bubble in Cepheus A
Water Maser Bubble Cepheus A
2009/6/11
Evidence for Time Evolution in the Exciting Source of the Expanding Water Maser Bubble in Cepheus A。
Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8
Radio Continuum Emission KjPn 8 Planetary Nebula
2009/6/11
Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8。
Effect of Interplanetary Magnetic Field and Disturb Storm Time on H Component
Sudden Storm Commencement (SSC) magnitude of the H component deviation Interplanetary Magnetic Field (IMF)
2009/5/6
A fluxgate digital magnetometer is used to study the variation
of magnitude of H component during geomagnetic storm events of
April, July and November 2004 at southern subauroral localized region at...
Effect of Magnetic Activity on Ionospheric Time Delay at Low Latitude
Ionospheric time delay scintillation TEC geomagnetic storm
2009/5/6
The purpose of this work is to investigate the effect of magnetic
activity on ionospheric time delay at low latitude Station Bhopal
(geom. lat. 23.2◦N, geom. long. 77.6◦E) using dual fre...
Comparisons between two wavelet functions in extracting coherent structures from solar wind time
Wavelet Analysis Coherent Structures Solar Variables Turbulence
2010/7/5
Nowadays, wavelet analysis of turbulent flows have become increasingly popular. However, the study of geometric characteristics from wavelet functions is still poorly explored. In this work we compare...