Sentences with phrase «planetary companion»

Older worlds with planetary companions may be the place to find the most ancient life in the galaxy, according to a new study.

Due in part of discoveries of planetary companions around this Sun - like star, 47 Ursae Majoris became one of the top 100 target stars for NASA's proposed Terrestrial Planet Finder (TPF), which is now indefinitely delayed.

We first generate a stellar field with planetary companions based on radial velocity discoveries, use a planetary evolution model assuming a variable fraction of heavy elements to compute the characteristics of transit events, then apply a detection criterion that includes both statistical and red noise sources.

Astronomers detect planets by spotting stars that repeatedly wobble toward and away from Earth, tugged by the gravity of one or more planetary companions.

However, it may have emplaced the transiting planetary companion via the Kozai - Lidov mechanism.

We conclude that the planetary scenario is more likely than that of an astrophysical false positive by a factor of 2e5 (Kepler - 20b), 1e5 (Kepler - 20c), and 1.1 e3 (Kepler - 20d), sufficient to validate these objects as planetary companions.

The observations suggest that the dust was created by collisions in a Edgeworth - Kuiper - like belt of icy bodies, and that the orbital asymmetry could be an indication that the dust is being shepherded by an unseen planetary companion — among other explanations (Eiroa et al, 2010).

On June 24, 2009, astronomers submitted a paper summarizing observations which reveals that Star A reverses its magnetic poles every two years (some 11 times faster than our Sun, Sol), possibly because of the close orbit of its Jupiter - class planetary companion (Fares et al, 2009; and Unknown, New Scientist, July 13, 2009).

David Aguilar, Harvard - Smithsonian Center for Astrophysics — larger «day» and «night» images At maximum brightness, Mira would light up a hypothetical planetary companion, but at its most dark, the giant star's small, hot white dwarf companion would become visible (more discussion with illustration).

The finding of a 3.3 - day stellar rotation period for Star A that is estimated to be very similar to that of its recently discovered planetary companion moving in a very close «torch» orbit suggests that the planetary object may have tidally locked the star (Brogi et al, 2012; and Butler et al, 1997).

After analyzing four years of Kepler space telescope observations, astronomers from the University of Toronto, and of the University of Cambridge have given us our clearest understanding yet of a class of exoplanets called «warm Jupiters», showing that many have unexpected planetary companions.

No hints for the presence of an additional planetary companion in the two systems were found either from the photometric or radial velocity measurements.

A «naked - eye» view of 51 Pegasi and its close planetary companion «b» (800,000 km from the surface of b and 7.7 million km from the star), as simulated by Stimac (more).

However, Mandell says there may well be planetary companions around hot Jupiters at distances larger than the tight orbits probed in this earliest batch of Kepler data.

Thanks to the Kepler telescope's statistical survey, we know the stars above are rich with planetary companions.

Now scientists have made a startling discovery: One of these mysterious hot Jupiter systems has not one, but two close - in planetary companions, leading to new clues about planet formation and migration.

In all, the team found 17 candidate brown dwarf companions to red dwarf stars, one brown dwarf pair, and one brown dwarf with a planetary companion.

That causes our planetary companion to pop out from the synestia, leaving it in orbit around the body that will keep cooling until it resembles Earth.

Scientists have long suspected that our planetary companion was built when a Mars - sized body — commonly known as Theia — struck the young Earth, throwing molten rock into orbit that coalesced into the Moon.

A planetary companion around the foreground star can produce a variation in the brightening of the background star.

Forty precision Doppler measurements were used to confirm that the short - period transit event is due to a planetary companion.

In May 2005, a team of astronomers (led by Jaymie Matthews) using Canada's first space telescope, the Microvariability and Oscillations of Stars (MOST) satellite, announced that Star A has constantly varying starspots and that its planetary companion was close and massive enough to be tugging on the star's outer layer and affecting its rotation and brightness every 3.3 days (Maggie McKee, New Scientist, May 18, 2005).

Detailed modeling of the transit is consistent with a planetary companion with an orbital period of 3.548460 + / -0.000032 days and a radius of 1.431 + / -0.050 Rj.