News tagged with radial velocities

Related topics: stars , planets

Swiss duo win award for spotting distant planets

A pair of Swiss astrophysicists who were the first to discover a planet from beyond our solar system were honoured Tuesday with a major Spanish science award.

Space & Earth / Space Exploration

created Jan 24, 2012 | popularity not rated yet | comments 1

A wealth of habitable planets in the Milky Way

An international team has used the technique of gravitational microlensing to measure how common planets are in the Milky Way.

Space & Earth / Astronomy

created Jan 11, 2012 | popularity 4.8 / 5 (29) | comments 102 | with audio podcast

50 new exoplanets discovered by HARPS

Astronomers using ESO's world-leading exoplanet hunter HARPS have today announced a rich haul of more than 50 new exoplanets, including 16 super-Earths, one of which orbits at the edge of the habitable zone ...

Space & Earth / Astronomy

created Sep 12, 2011 | popularity 4.8 / 5 (17) | comments 14 | with audio podcast

Where's the debris for transiting planets?

For many exoplanet systems that have been discovered by the radial velocity method, astronomers have found excess emission in the infrared portion of the spectrum. This has generally been interpreted as remnants ...

Space & Earth / Astronomy

created Sep 06, 2011 | popularity 4.5 / 5 (4) | comments 1

HARPS tunes in on habitable planet

Using the High Accuracy Radial velocity Planet Searcher (HARPS), a team of scientists at University of Geneva, Switzerland, led by the Swiss astronomer Stephane Udry made a sound discovery… an Earth-like ...

Space & Earth / Astronomy

created Sep 05, 2011 | popularity 5 / 5 (5) | comments 1

HARPS tunes in on 'noisy' planets

Able to achieve an astounding precision of 0.97 m/s (3.5 km/h), with an effective precision of the order of 30 cms-1, the High Accuracy Radial velocity Planet Searcher (HARPS) echelle spectrograph has already ...

Space & Earth / Astronomy

created Aug 10, 2011 | popularity 5 / 5 (3) | comments 1

Planet spotting

The Extrasolar Planets Encyclopedia counted 548 confirmed extrasolar planets at 6 May 2011, while the NASA Star and Exoplanet Database (updated weekly) was today reporting 535. These are confirmed findings ...

Space & Earth / Astronomy

created May 09, 2011 | popularity 5 / 5 (4) | comments 0

HARPS-N instrument will help confirm Kepler's planet finds

(PhysOrg.com) -- The search for planets outside our solar system continues to heat up. NASA's Kepler spacecraft has located more than 1,200 planetary candidates, however confirming them remains a challenge. ...

Space & Earth / Astronomy

created Feb 15, 2011 | popularity 5 / 5 (9) | comments 5 | with audio podcast

Milky Way stars move in mysterious ways

Rather than moving in circles around the center of the Milky Way, all the stars in our Galaxy are travelling along different paths, moving away from the Galactic center. This has just been evidenced by Arnaud ...

Space & Earth / Astronomy

created Nov 30, 2010 | popularity 4.7 / 5 (27) | comments 22 | with audio podcast

Scientists find potentially habitable planet near Earth

(PhysOrg.com) -- A team of planet hunters led by astronomers at the University of California, Santa Cruz, and the Carnegie Institution of Washington has announced the discovery of an Earth-sized planet (three ...

Space & Earth / Astronomy

created Sep 29, 2010 | popularity 4.9 / 5 (78) | comments 67 | with audio podcast

Exoplanets Clue to Sun's Curious Chemistry

(PhysOrg.com) -- A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing "lithium mystery" observed in the Sun to the presence of planetary systems. ...

Space & Earth / Astronomy

created Nov 11, 2009 | popularity 4.6 / 5 (21) | comments 15

32 New Exoplanets Found (w/ Video)

(PhysOrg.com) -- Today, at an international ESO/CAUP exoplanet conference in Porto, the team who built the High Accuracy Radial Velocity Planet Searcher, better known as HARPS, the spectrograph for ESO's 3.6-metre ...

Space & Earth / Astronomy

created Oct 19, 2009 | popularity 4.9 / 5 (28) | comments 6

Transit Search Finds Super-Neptune

(PhysOrg.com) -- Astronomers at the Harvard-Smithsonian Center for Astrophysics have discovered a planet somewhat larger and more massive than Neptune orbiting a star 120 light-years from Earth. While Neptune ...

Space & Earth / Astronomy

created Jan 20, 2009 | popularity 4.1 / 5 (9) | comments 8