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As a star runs out of fuel, it will billow out to a million times its original size, engulfing any matter — and planets — in its wake. Scientists have observed hints of stars just before, and shortly ...
Planet Formation in Earth-like Orbit around a Young Star
Planet Formation Earth Young Star
2016/4/13
The disks of dust and gas that surround young stars are the formation sites of planets. New images from the Atacama Large Millimeter/submillimeter Array (ALMA) reveal never-before-seen detai...
There are 450 light-years between Earth and LkCa15, a young star with a transition disk around it, a cosmic whirling dervish, a birthplace for planets.
Despite the disk’s considerable distance from E...
Detailed Abundances of the Solar Twins 16 Cygni A and B: Constraining Planet Formation Models
Detailed Abundances Solar Twins Constraining Planet Formation Models
2011/10/10
Results of a detailed abundance analysis of the solar twins 16 Cyg A and 16 Cyg B based on high-resolution, high signal-to-noise ratio echelle spectroscopy are presented. 16 Cyg B is known to host a g...
The First Kepler Mission Planet Confirmed With The Hobby-Eberly Telescope: Kepler-15b, a Hot Jupiter Enriched In Heavy Elements
Hot Jupiter Enriched Heavy Elements Planet Confirmed
2011/10/9
We report the discovery of Kepler-15b, a new transiting exoplanet detected by NASA's Kepler mission. The transit signal with a period of 4.94 days was detected in the quarter 1 (Q1) Kepler photometry....
High resolution spectroscopy of planet bearing stars。
Does Si Play a Role in the Formation of Extrasolar Planet Systems?
Planetary systems formation—stars abundances—stars late-type
2009/5/12
With the high signal-to-noise ratio spectra, we obtained Si
abundances of 22 extrasolar planet host stars, and discussed some constraints
on the planet formation. Using our silicon abundance results...
EQUATOR AND EQUINOX CORRECTIONS FROM THE SUN AND PLANET OBSERVATIONS MADE AT THE BELGRADE OBSERVATORY
EQUATOR EQUINOX CORRECTIONS
2009/4/8
EQUATOR AND EQUINOX CORRECTIONS FROM THE SUN AND PLANET OBSERVATIONS MADE AT THE BELGRADE OBSERVATORY。
April 25, 2007，A giant red orb in the sky shines down on planet Gliese 581c during the day, and at night the bright lights of two neighboring planets move gently through the starry skies. On the surfa...