搜索结果: 1-15 共查到“天文学 Exoplanets”相关记录24条 . 查询时间(0.084 秒)
Research in Focus: Nikole Lewis explains unique worlds among newly discovered exoplanets（图）
系外行星 独特世界 Nikole·Lewis
2022/7/26
In 1995, astronomers found the first known planet around a sun-like star outside our solar system. The news caused a buzz of excitement around the world. Finally we had proof of a planet orbiting anot...
Scientists at Cornell and the American Museum of Natural History have identified 2,034 nearby star-systems – within the small cosmic distance of 326 light-years – that could find Earth merely by watch...
Even 'Goldilocks' exoplanets need a well-behaved star（图）
Goldilocks exoplanets well-behaved star
2019/11/8
An exoplanet may seem like the perfect spot to set up housekeeping, but before you go there, take a closer look at its star.Rice University astrophysicists are doing just that, building a computer mod...
2017国际星星和行星青年天文学校（International School for Young Astronomers on Stars and Exoplanets）
2017 国际星星和行星青年天文 学校
2017/10/27
The International School for Young Astronomers on Stars and Exoplanets will be held in November 26th to December 9th, 2017 in Kunming, China, under the organization of Yunnan Observatories (YNOs) of C...
Since the mid-1990s, when the first planet around another sun-like star was discovered, astronomers have been amassing what is now a large collection of exoplanets—nearly 3,500 have been confirmed so ...
2017SPIE探测系外行星的技术和仪器专题会议（Techniques and Instrumentation for Detection of Exoplanets VIII）
2017 SPIE 探测系外行星的技术和仪器 专题会议
2017/4/25
2017SPIE探测系外行星的技术和仪器专题会议（Techniques and Instrumentation for Detection of Exoplanets VIII）。
Brown dwarfs are smaller than stars, but more massive than giant planets. As such, they provide a natural link between astronomy and planetary science. However, they also show incredible variation whe...
ExoPTF Science Uniquely Enabled by Far-IR Interferometry: Probing the Formation of Planetary Systems, and Finding and Characterizing Exoplanets
Finding Characterizing Exoplanets
2014/12/22
By providing sensitive sub-arcsecond images and integral field spectroscopy in the 25 – 400 ìm wavelength range, a far-IR interferometer will revolutionize our understanding of planetary system format...
EVANSTON, Ill. --- During its four-year mission, NASA’s Kepler space telescope discovered thousands of “planetary candidates” in our Milky Way galaxy -- the vast majority of which are almost certainly...
The Radial Velocity Signature of Tides Raised in Stars Hosting Exoplanets
stars: planetary systems – stars: solar type – hydrodynamics – waves – planet-star interactions
2011/7/29
Close-in, massive exoplanets raise significant tides in their stellar hosts. We compute the radial velocity (RV) signal due to this fluid motion in the equilibrium tide approximation. The predicted ra...
Magnetic Fields in Earth-like Exoplanets and Implications for Habitability around M-dwarfs
magnetic fields exoplanets habitability
2011/7/14
We present estimations of dipolar magnetic moments for terrestrial exoplanets using the Olson & Christiansen (2006) scaling law and assuming their interior structure is similar to Earth. We find that ...
Transiting exoplanets from the CoRoT space mission. XVIII. CoRoT-18b: a massive hot jupiter on a prograde, nearly aligned orbit
stars: planetary systems - techniques: photometry - techniques: radial velocities - techniques: spectroscopic
2011/7/11
We report the detection of CoRoT-18b, a massive hot jupiter transiting in front of its host star with a period of 1.9000693 +/- 0.0000028 days. This planet was discovered thanks to photometric data se...
The Great Escape: How Exoplanets and Smaller Bodies Desert Dying Stars
planet-star interactions planets supernovae: general
2011/7/6
Mounting discoveries of extrasolar planets orbiting post-main sequence stars motivate studies aimed at understanding the fate of these planets. In the traditional "adiabatic" approximation, a secondar...
A Model for Thermal Phase Variations of Circular and Eccentric Exoplanets
methods data analysis planetary systems
2010/11/3
We present a semi-analytic model atmosphere for close-in exoplanets that captures the essential
physics of phase curves: orbital and viewing geometry, advection, and re-radiation. We calibrate the mo...
Transiting planet discoveries have largely been restricted to the short-period or low-periastron distance regimes due to the bias inherent in the geometric transit probability. Through the refine-ment...