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Latest Circumstellar discs Stories

massive star HD100546
2014-09-09 03:45:41

Donna McKinney, Naval Research Laboratory Dr. John Carr, a scientist at the U.S. Naval Research Laboratory (NRL), is part of an international team that has discovered what they believe is evidence of a planet forming around a star about 335 light years from Earth. This research is published in the August 20th issue of The Astrophysical Journal. Carr and the other research team members set out to study the protoplanetary disk around a star known as HD 100546, and as sometimes happens in...

protoplanetary discs in a double star
2014-07-31 05:31:40

ESO Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found wildly misaligned planet-forming gas disks around the two young stars in the binary system HK Tauri. These new ALMA observations provide the clearest picture ever of protoplanetary disks in a double star. The new result also helps to explain why so many exoplanets — unlike the planets in the Solar System — came to have strange, eccentric or inclined orbits. The results will appear in the journal...

planet formation
2014-01-18 05:52:54

[ Watch the Video: ALMA Makes A Starry Cosmic Discovery ] redOrbit Staff & Wire Reports - Your Universe Online A team of Japanese astronomers has located evidence of a giant planetary system forming around a young star named HD142527, and their discovery could change existing theories on how planets form and provide new insights into the formation of a vast array of different planetary systems. Using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope, scientists...

Fluffy Disk Baby Star
2013-08-27 09:17:10

John P. Millis, PhD for redOrbit.com - Your Universe Online Astronomers from the Strategic Exploration of Exoplanets and Disks with Subaru Telescope (SEEDS) project, an effort to search out other worlds, has turned its attention to a somewhat unusual source. Using the Subaru Telescope’s High Contrast Instrument for the Subaru Next Generation Adaptive Optics (HiCIAO), scientists were interested in a young star known as Ry Tau (Tauri) located some 460 light-years from Earth. Around this...

Disk Patterns Not Always Formed In Presence Of Planets
2013-07-13 07:16:03

[WATCH VIDEO: It Doesn't Take A Planet To Make A Ring] April Flowers for redOrbit.com - Your Universe Online Young stars known to host planets generally also have disks containing dust and icy grains, particles produced by collisions among asteroids and comets also orbiting the star. Often, these debris disks have sharply-defined rings or spiral patterns, which could signal the presence of orbiting planets. As a way to better understand the physical properties of known planets and...

protoplanetary disk around J 1604
2013-02-08 11:38:19

[ Listen to the Podcast: “How Planets Form” With Guest Dr. Eric Mamajek (Part 1): Your Universe Today Podcasts ] Lee Rannals for redOrbit.com - Your Universe Online The Subaru Telescope has helped astronomers capture the first vivid infrared image of a distant planet forming from a young star. Astronomers wrote in Astrophysical Journal Letters about an image of a curved arm of dust extending over a hole on a disk, which is a feature that could provide evidence that...

NASA Finds New Asteroid Belt Discovered Orbiting Vega
2013-01-09 15:11:09

redOrbit Staff & Wire Reports - Your Universe Online A team of U.S. astronomers has discovered what looks to be a large asteroid belt orbiting around Vega, the second-brightest star in the northern sky, NASA officials announced on Tuesday. Using data obtained from the Spitzer Space Telescope and the European Space Agency's (ESA) Herschel Space Observatory, the researchers discovered infrared light emitted by warm and cold dust in bands around both Vega and Fomalhaut, a second...

Fomalhaut b’s Odd Orbit May Be Caused By Star’s Vast Debris Disk
2013-01-09 11:45:36

redOrbit Staff & Wire Reports — Your Universe Online According to newly released images from the Hubble Space Telescope, a vast debris belt circling around a nearby star is wider than scientists believe, and the unusual orbit of a planet traveling around that star could be to blame. In a statement released Tuesday, NASA officials stated that the images reveal that the debris disk traveling around the star Fomalhaut actually spans from 14 to 20 billion miles from the star...


Latest Circumstellar discs Reference Libraries

8_2c71772f2c3a31994d5208d4518632494
2004-10-19 04:45:44

Cosmogony -- Cosmogony is the study of the origins of celestial objects. It is most commonly used to refer to the study of the origin of the solar system. Currently, the most widely accepted theory is that the solar system was formed roughly 5 billion years ago with the collapse of a nebula of gas and dust, likely caused by shock waves generated by a nearby supernova. The solar system would have formed as a member of a star cluster, now long-since dispersed throughout the Milky Way over...

4_2263b8f4e602bddd69c225b3bc2c46aa2
2004-10-19 04:45:41

Asteroid Belt -- The Asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. It is believed that, during the first million years of the solar system history, planets formed by accretion of planetesimals. Ripetute collisions led to the familiar rocky planets and to the gas giant's cores. However, in this zone of the system the strong gravity of Jupiter inhibited the final stages...

3_a997defc9ca7ea81c6bd4ed4bab88e3c2
2004-10-19 04:45:40

Vega -- Vega (Alpha Lyrae) is the lead star in the constellation Lyra, reaching near directly overhead the mid-northern latitudes, during the summer. It's a "nearby star" at only 25 light years distant and together with Arcturus and Sirius, one of the brightest stars in the Sun's neighbourhood. Vega is a vertex of the Summer Triangle. Its spectral class is A0V (Sirius, an A1V, is slightly less powerful) and it's firmly in the main sequence, fusing hydrogen to helium in its core....

3_26342a6670b6131c97d5fc3f8796ebd92
2004-10-19 04:45:40

Epsilon Eridani -- Epsilon Eridani is a main-sequence star in the constellation of Eridanus (the river). It is often used in science fiction because it is extremely sunlike, and in the fictional Star Trek universe it is the home sun of the planet Vulcan which is home to Mr. Spock. It is the third closest star visible without a telescope. It has 85% of the Sun's mass, almost that much of its diameter, and 28% of its luminosity. It is 10.5 light years from Earth. Its spectrum is...

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Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
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