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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...
Analyzing sun-like stars that eat Earth-like planets
Analyzing sun-like stars eat Earth-like planets
2014/6/12
Some Sun-like stars are ‘Earth-eaters.’ During their development they ingest large amounts of the rocky material from which ‘terrestrial’ planets like Earth, Mars and Venus are made.
Habitability of Super-Earth Planets around Main-Sequence Stars including Red Giant Branch Evolution: Models based on the Integrated System Approach
Main-Sequence Stars including Red Giant Branch Evolution Models based Integrated System Approach
2011/10/20
In a previous study published in Astrobiology, we focused on the evolution of habitability of a 10 M_E super-Earth planet orbiting a star akin to the Sun. This study was based on a concept of planetar...
Magnetic turbulence in and around the Earth's magnetosphere
Magnetic turbulence Earth's magnetosphere
2009/5/27
Magnetic turbulence is found in most space plasmas, including the geospace environment. Recent spacecraft observations of magnetic turbulence in the ion foreshock, in the magnetosheath, in the polar ...
Results from the Whole Earth Telescope–Indian Contributions
pulsating stars PG1159-035 stars PG 1336-018 stars
2009/5/12
The Indian team at ISRO has been part of the Whole Earth
Telescope (WET) team since 1988 when we first participated in the campaign
on V471 Tau.We have been part of many other observing campaigns
o...
EARTH ROTATION OBSERVATIONS AND THEIR GEOPHYSICAL IMPLICATIONS
EARTH ROTATION Free Core Nutation GEOPHYSICAL Earth Orientation Parameters
2009/3/31
This paper reviews the precision of the measurements of the Earth
rotation fluctuations realized during the last decades; particularly the observations
performed during the last ten years allow to c...
SOME FRESH INDICATIONS OF THE SOLAR ORIGIN OF 4-6-YEAR OSCILLATION OF THE EARTH'S ROTATION PARAMETERS
SOLAR ORIGIN EARTH'S ROTATION PARAMETERS 4-6-YEAR OSCILLATION
2009/3/19
The variations of universal times difference UT1-TAI and Earth’s
rotation instantaneous pˆole coordinates (X,Y) are studied in the frequency range
of 3 - 8 yr−1 as a function of the solar...
INTERACTION BETWEEN VARIABLE SOLAR UV RADIATION AND TROPOSPHERIC CIRCULATIONS AS A POSSIBLE CAUSE OF FIVE YEAR OSCILLATION IN EARTH ROTATION
VARIABLE SOLAR UV RADIATION TROPOSPHERIC CIRCULATIONS EARTH ROTATION
2009/3/16
It is shown that Five Year Oscillation in Earth rotation is possibly
caused by variable solar UV radiation and a corresponding perturbation mechanism
is suggested.
In this paper we examine air densities derived from our realiza-
tion of aeronomic atmosphere models based on accelerometer measurements from
satellites in a low Earth's orbit (LEO). Using the adapt...
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...
Reviving a calculation made by Eddington in the 1920s, and using the most recent and comprehensive databases available on stars and galaxies, including more than 2,500,000 stars and around 20,000 gala...