News tagged with radial velocities
Exoplanets Clue to Sun's Curious Chemistry
Nov 11, 2009 |
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(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. ...
32 New Exoplanets Found (w/ Video)
Oct 19, 2009 |
4.9 / 5 (28) |
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(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 ...
Brian May, guitarist for rock band Queen, completes Ph.D. thesis following 30-year hiatus
Space & Earth / Space Exploration
Jul 31, 2008 |
4.5 / 5 (24) |
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Brian May, the guitarist and founding member of the legendary rock band Queen, earned his PhD in astronomy last year from Imperial College London. His PhD thesis A Survey of Radial Velocities in the Zodiacal Dust Cloud has ju ...
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Scientists map speed of climate change
Dec 23, 2009 |
3 / 5 (22) |
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New study finds that the average ecosystem will need to shift about a quarter mile per year to keep pace with global climate change.
A New Method of Estimating Stellar Distances
Dec 21, 2009 |
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(PhysOrg.com) -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen ...
Light-Driven Nanorod Could Roll on Water
Dec 18, 2009 |
4 / 5 (9) |
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(PhysOrg.com) -- In a recent study, researchers have examined the possibility of rolling a nanorod on the surface of water. On the macroscale, perhaps the closest analogy might be the sport of logrolling, ...
Astronomers Find Super-Earth Using Amateur, Off-the-Shelf Technology (w/ Video)
Dec 16, 2009 |
4.9 / 5 (27) |
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(PhysOrg.com) -- Astronomers announced today that they have discovered a "super-Earth" orbiting a red dwarf star 40 light-years from Earth. They found the distant planet with a small fleet of ground-based ...
Close-up photos of dying star show our sun's fate (w/ Video)
Dec 15, 2009 |
5 / 5 (21) |
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(PhysOrg.com) -- About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet ...
New planet discoveries suggest low-mass planets are common around nearby stars (w/ Video)
Dec 14, 2009 |
4.8 / 5 (19) |
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(PhysOrg.com) -- An international team of planet hunters has discovered as many as six low-mass planets around two nearby Sun-like stars, including two "super-Earths" with masses 5 and 7.5 times the mass of ...
Life after silicon: Using exotic materials to help microchips keep improving
Dec 08, 2009 |
4.5 / 5 (8) |
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(PhysOrg.com) -- The huge increases in the power and capacity of computers, cell phones and communications networks in the last 40 years have been the result of ever-shrinking silicon transistors. But silicon ...
New imaging technique reveals different heart motions by age, gender
Dec 08, 2009 |
not rated yet |
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Using a new noninvasive imaging technique, scientists said they have discovered important, fundamental differences in heart motion by age and gender.
Crime scene measurements can be taken from a single image
Technology / Computer Sciences
Dec 01, 2009 |
3 / 5 (1) |
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Two researchers from the University of Salamanca have developed a procedure to enable forensic police to extract metric data from crime scenes using just a single photograph. Their proposal, published this ...
Atomic-level Snapshot Catches Protein Motor in Action (w/ Video)
Nov 20, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- The atomic-level action of a remarkable class of ring-shaped protein motors has been uncovered by researchers with the Lawrence Berkeley National Laboratory using a state-of-the-art protein ...
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