Sentences with phrase «by orbiting planets»

These telescopes rely on detecting any Doppler shifting of the parent star caused by an orbiting planet tugging it this way and that, but this method is vulnerable to interference from eruptions on the star's surface and other distractions.

That wiggle would be due to a gravitational tug by the orbiting planet.

From the ground, the researchers looked for Doppler shifts in the suspect stars» light spectra that would reveal a gravitational wobble induced by an orbiting planet.

Astronomers detected the planets using the Kepler telescope, which measures the slight dimming of a star's light caused by orbiting planets passing in front of it.

Fomalhaut, a bright star 7.7 parsecs (25 light - years) from Earth, harbors a belt of cold dust with a structure consistent with gravitational sculpting by an orbiting planet.

The team measured the reflex wobble of the host star, caused by the gravitational tug on the star exerted by the orbiting planet.

BTW I've never understood why the the angular momentum of the solar system is possessed mainly by the orbiting planets while its mass is concentrated in the sun.

For this, TESS is relying on follow - up studies by ground - based telescopes, which can watch for tiny periodic Doppler shifts in the frequency of a star's light caused by an orbiting planet tugging on it.

A star tugged by an orbiting planet will wobble slightly, which can be detected as a regular shift in the star's color corresponding to the time the planet requires to complete an orbit.

Small shifts of the spectrum relative to the stable wavelength standard provided by the laser comb would yield a precision measurement of the wobble induced by an orbiting planet.

While the HARPS team monitors nearby stars for telltale wobbles caused by orbiting planets, Kepler scientists search a wide field of faraway stars, watching for planets that become silhouetted against their suns.

The team looked for changes in the star's light that could be caused by an orbiting planet, whose gravitational tug would induce a slight wobble in the star.

The other is the regular but minuscule variation in a star's radial velocity — its speed through the galaxy relative to Earth's speed — which indicates that the star is being tugged by an orbiting planet's gravity.

The planet was found using the radial velocity method: Telescopes scrutinize a star's light to see if its frequency is periodically stretched and squeezed by the Doppler effect as the star is tugged, first away and then toward us, by an orbiting planet.

Limits of the technology used by the HARPS team, which looks for slight wobbles in starlight caused by an orbiting planet's gravity, make assessments of a planet's density difficult, if not impossible, to determine.