搜索结果: 1-15 共查到“理学 Atmospheres”相关记录28条 . 查询时间(0.066 秒)
Gas giants orbiting our sun show a clear pattern; the more massive the planet, the lower the percentage of “heavy” elements (anything other than hydrogen and helium) in the planet’s atmosphere. But ou...
复旦大学大气与海洋科学系穆穆院士团队研究北极海冰影响乌拉尔阻塞次季节预报的成果作为研究亮点论文在《Journal of Geophysical Research: Atmospheres》上发表（图）
北极海冰 乌拉尔阻塞 次季节预报 全球变暖
2022/7/15
在全球变暖的背景下，北极海冰快速融化，冬季乌拉尔阻塞事件频繁发生。乌拉尔阻塞事件通常伴随着欧亚大陆极端事件的发生，因而受到国内外学者的广泛关注。不少研究指出，在季节和年际尺度上乌拉尔阻塞与北极海冰有着密切的联系，然而鲜有学者从次季节尺度研究北极海冰对乌拉尔阻塞的影响。
热红外遥感在研究地气相互作用方面有独特优势，但因受云的影响无法获得时空连续信息。近年来，可见光与微波遥感已被成功应用于计算全球地表蒸发，但是热红外还未被应用于估算全球蒸发。如何获得时空连续的地气间水分交换信息，是当前热红外遥感研究地气相互作用过程时遇到的“卡脖子”问题。国际上有观点认为基于能量平衡的热红外方法无法准确得到地表的蒸发，主要原因是蒸散发的估算对地气相互作用的水热传输阻力较敏感，并且受云...
Two James Webb instruments are best suited for exoplanet atmospheres
Two James Webb instruments exoplanet atmospheres
2017/7/20
The best way to study the atmospheres of distant worlds with the James Webb Space Telescope, scheduled to launch in late 2018 will combine two of its infrared instruments, according to a team of astro...
ALMA Detects First Traces of Carbon ‘Smog’ Permeating Interstellar Atmospheres of Early Galaxies（图）
ALMA Detects First Traces Smog Permeating Interstellar Atmospheres Early Galaxies
2015/7/13
Astronomers study the elements scattered between the stars to learn about the internal workings of galaxies, their motion and chemistry. To date, however, attempts to detect the telltale radio signatu...
On the effects of clouds and hazes in the atmospheres of hot Jupiters: semi-analytical temperature-pressure profiles
planets and satellites: atmospheres – radiative transfer
2011/9/29
Motivated by the work of Guillot (2010), we present a semi-analytical formalism for calculating the temperature-pressure profiles in hot Jovian atmospheres which includes the effects of clouds/hazes a...
Average Heating Rate of Hot Atmospheres in Distant Clusters by Radio AGN: Evidence for Continuous AGN Heating
Average Heating Atmospheres Distant Clusters Evidence Continuous Heating
2011/10/9
We examine atmospheric heating by radio active galactic nuclei (AGN) in distant X-ray clusters by cross correlating clusters selected from the 400 Square Degree (400SD) X-ray Cluster survey with radio...
On the effects of clouds and hazes in the atmospheres of hot Jupiters: semi-analytical temperature-pressure profiles
planets and satellites:atmospheres – radiative transfer
2011/8/16
Abstract: Motivated by the work of Guillot (2010), we present a semi-analytical formalism for calculating the temperature-pressure profiles in hot Jovian atmospheres which includes the effects of clou...
Inhomogeneities in molecular layers of Mira atmospheres
Techniques: interferometric – Techniques: photometric – Stars: AGB and post-AGB – Stars: atmospheres – Stars: fun- damental parameters – Stars: mass-loss
2011/9/28
We obtained K-band spectro-interferometric observations of the Miras R Cnc, X Hya, W Vel, and RW Vel with a spectral resolution of 1500 using the VLTI/AMBER instrument. We obtained concurrent JHKL pho...
Radiation-driven winds of hot luminous stars. XVI. Expanding atmospheres of massive and very massive stars and the evolution of dense stellar clusters
Radiation mechanisms: general – Methods: numerical – Radiative transfer – early Universe – Stars: early-type – mass- loss – stellar winds – very massive stars – stellar evolution
2011/9/27
Context: Starbursts, and particularly their high-mass stars, play an essential role in the evolution of galaxies. The winds of massive stars not only significantly influence their surroundings, but th...
The Potential Importance of Non-Local, Deep Transport on the Energetics, Momentum, Chemistry, and Aerosol Distributions in the Atmospheres of Earth, Mars and Titan
Non-Local Deep Transport the Energetics
2011/1/11
A review of non-local, deep transport mechanisms in the atmosphere of Earth provides a good foundation for examining whether similar mechanisms are operating in the atmospheres of Mars and Titan. On E...
S-type stars are late-type giants whose atmosphere is enriched in carbon and s-process elements because of either extrinsic pollution by a binary companion or intrinsic nucleosynthesis and dredge-up o...
Extended atmospheres of AGB stars: modeling and measurement
Extended atmospheres AGB stars modeling measurement
2010/11/12
Encoded in the time- and wavelength dependent properties of pulsating AGB stars are the underlying fundamental parameters of mass, composition and evolutionary state. However, the standard technique o...
On the Inference of Thermal Inversions in Hot Jupiter Atmospheres
Thermal Inversions Hot Jupiter Atmospheres
2011/1/10
Several studies in the recent past have inferred the existence of thermal inversions in some transiting hot Jupiter atmospheres. Given the limited data available, the inference of a thermal inversion ...
Ionisation in atmospheres of Brown Dwarfs and extrasolar planets I The role of electron avalanche
Brown Dwarfs extrasolar planets
2011/1/10
Brown Dwarf and extrasolar planet atmospheres form clouds which strongly influence the local chemistry and physics. These clouds are globally neutral obeying dust-gas charge equilibrium which is, on s...