... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel to ESO Headquarters . ... Visits to ESO Sites . ... Weekend Visits Form . Architecture at ESO . Collaborations with ESO . ESO Acronyms . ... Green ESO . ... ESO . ESO Brazil . ... ESO Supernova . ... About ESO . ... TRAnsiting Planets and PlanetesImals Small Telescope . ... This artistтАЩs impression shows the formation of a gas giant planet in the ring of dust around the young star HD 100546. ...

Еще в разделе: (Показать все результаты (>65410) - www.eso.org/ )

• ALMA image of the planet-forming disc around the young, Sun-like star TW Hydrae
• ESO - Thesis Topic: High-Contrast Imaging of Planet-Forming Disks in

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

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• ASP: Astronomy in the News
• ASP: How Do Planets Form?
• ASP: Miranda: A Jigsaw Puzzle World

The solar system probably formed about 4.5 billion years ago from a giant disk of gas, dust and ice in space. ... All forms of life on Earth require liquid water to survive, so the presence of liquid water is a good criterion for deciding whether other planets in the universe could be habitable. Earth is the only habitable planet in the solar system. Venus, closer to the Sun, is too hot to have liquid water. Planets and moons in the outer solar system are too cold for liquid water. ...

Еще в разделе: (Показать все результаты (>2878) - star.arm.ac.uk/ )

• Armagh Observatory
• Twelve Days of Mercury this Christmas
• AN EXCESS OF EARTHS

... Star forming regions known as "EGGs" are uncovered at the end of this giant pillar of gas and dust in the Eagle Nebula (M16). ... Planet Earth From TIROS 1: First TV Image . ... Flying Over Asteroid Eros . ... Spacecraft NEAR Shoemaker in orbit around asteroid 433 Eros found out earlier this month when it recorded its first fly-over sequence. ... Venus Once Molten Surface . ... If you could look at Venus with radar eyes - this is what you might see. ... The Earth Also Rises . ... First page ] Prev. ...

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... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

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• Exploring Icy Moons in Search of Life | Astronotes
• ESO reveals end of cosmic Dark ages | Astronotes
• How do galaxies form? - New discovery from European Southern Observatory |

... With Artymowicz (Stockholm) and Seibert (JHU), I am investigating the evolution young planets due to their interactions with the disks from which they form. ... Artymowicz and I are continuing investigations of gas flows around young binary stars. We predictied that gas streams would carry mass from circumbinary disks onto the central binary. ... Ogilvie (Cambridge) and I are investigating the properties of waves that propagate in accretion disks. ... 3/24/1998 ...

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• brown dwarfs - 1
• Marshall Perrin's Homepage
• Posters

... Tonight's Sky . ... DISK т?? ... Sky this Month . ... Star Atlas . ... A planet is forming in an Earth-like orbit around a young star . New images reveal never-before-seen details in the planet-forming disk around a nearby Sun-like star, including a tantalizing gap at the same distance from the star as Earth is from the Sun. ... ALMA image of the planet-forming disk around the young Sun-like star TW Hydrae. ... Disks of dust and gas that surround young stars are the formation sites of planets. ...

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• Small planets don't need "heavy metal" stars to form | Astronomy.com
• ALMA sheds light on planet-forming gas streams | Astronomy.com
• New research shows how circumbinary planets form | Astronomy.com

... We have examined the diversity of planets and planetary systems that arise from oligarchic growth and gas accretion onto massive cores, by means of N-body simulations combined with a sophisticated disc model. ... Slow planetary growth resulted from the relatively low mass of solids in the disc, and one consequence of this is that planets underwent limited orbital migration during the lifetime of the gas disc. ... Figure 1 shows an example of this migration behaviour in a single-planetin-a-disc run. ...

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• http://www.mrao.cam.ac.uk/wp-content/uploads/2014/04/CTerquem.pdf
• http://www.mrao.cam.ac.uk/wp-content/uploads/2014/04/LMatra.pdf

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. January 16, 1999 . Spiral Eddies On Planet Earth . Credit: STS 41G Crew , NASA . Explanation: Can you identify this wispy stellar nebula ? ... Prior to STS 41G these eddies were thought to be rare but are now understood to be a significant dynamic feature of ocean currents. ... About APOD > . ... NASA Technical Rep.: ...

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• APOD: 2001 June 4 - The T Tauri Star Forming System
• APOD: December 7, 1996 - Planetary Systems Now Forming in Orion
• APOD: 2000 November 5 - Jupiter Swallows Comet Shoemaker Levy 9

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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• Astronomy HyperText Book: Interstellar Medium
• The Three Planet System
• Planetary Formation

... Bad Astronomy . ... Bitesize Astronomy . ... The Nine Planets . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... I have a snack from April 1998 that gives a brief intro to these peculiar objects , but briefly, brown dwarfs (or BDs for short) are objects that are a little less massive than "normal" stars, but bigger than any planets we currently know about. ... A star forms from a collapsing gas cloud. ... One more point: is a BD a star? ... 2008 Phil...

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• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System
• Phil Plait's Bad Astronomy: The Logo

... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...

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• Solar wind and IMF [Oulu]
• Other Solar Systems
• Europa

Thanks to numerous ground and space-based surveys, we are now aware of over 1800 planets orbiting other stars, with another nearly 5000 candidates from the Kepler Mission awaiting confirmation. ... The answer to this question lies in the study of young planets and their formation environments. In this talk I will show how high-precision time series data from space telescopes is beginning to illuminate the conditions surrounding planet formation and the star-disk connection. ...

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• Mass Feeding and Feedback in Young Stellar Objects
• COALA - Computational Astrophysics Laboratory
• Research Interests

... General information . ... Staff . Research staff . ... Research . ... Star formation . ... Information . ... Historical highlights . Historical research . ... Rocky accretion in a young solar-type star . ... The results found in the case of the young solar-type stars 2MASS J08095427-4721419 are presented in " The Gaia-ESO Survey: chemical signatures of rocky accretion in a young solar-type star ", by Lorenzo Spina et al, published on Astronomy and Astrophysics ( A&A 2015, 582,6 ). ...

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• Dust grains from the heart of supernovae
• High-resolution Herschel spectroscopy reveals the proto-planetary disk around
• Educator's Guide to Impact Craters

... part 1 | ... The Basic Stages in Earth's Pre-geological Development . ... After fragments of the Vortex sleeves separated, whirlwinds of second and third orders ("NC" - new micro-vortex) were generated- future planet cores and their satellites - all of them developing independently, governed by the common laws of development of cosmogenic vortexes. ... Our planet's core today is comprised of considerably deteriorated cosmogenic vortex; consequently, the Earth has a moderated magnetic field. ...

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• The new concept of formation and development of the Solar system
• The new circuit of global tectonics of the Earth, planets and satellites.
• New concept of cosmogony

... How How do molecular clouds collapse to form do very young stars evolve? do planets grow in circumstellar disks? ... Real-time protoplanetary/protostellar disk evolution - movies of disks in formation High sensitivity, 2 AU resolution cm-wave observations (100K, 0.2 mas, 8 GHz bandwidth, A/T 10,000) proper motions (Reid ­ Bryden et al 1999) dynamical timescales months-years How do very young stars evolve ? cm-waves probe inner few AU of accretion ...

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• http://www.naic.edu/~gibson/m42/m42_HST.txt
• Extra-solar planets
• The Tarantula Nebula

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

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• http://www.aaa.org/s932/images/09fallclass4.pdf

EPHEMERIDES OF MINOR PLANETS . The yearbook "Ephemerides of minor planets" (published since 1948) contains information on orbital elements of numbered minor planets and the circumstances of their observations during the best observation periods. ... orbital elements of 430405 minor planets, numbered as of March 5, 2015 and dates of their oppositions in 2016; . ... opposition ephemerides of minor planets; . ... information on the "Updated Ephemerides of Minor Planets" service; . ...

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• (Untitled)
• Laboratory of minor bodies of Solar system

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Dept. for Physics of Planetary Systems . ... Science . ... All Pages . ... Research of the stars with planets which pass apparent star disk (transiting exoplanets). The transit method based on a detection star brightness decrease during a passing of planet in front of its disk. Observed brightness system decries when planet pass star disk and its volume depend of the relative sizes star and planet. ...

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• Anatoliy P. Vidmachenko
• Research - Page 2
• Pre-registration form

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

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