... AB Aurigae: How To Make Planets . ... NASA Explanation: This enhanced Hubble Space Telescope image shows in remarkable detail the inner portion of the disk of dust and gas surrounding the star AB Aurigae. Knots of material, visible here for the first time, may well represent an early stage of a process which could result in the formation of planets over the next few million years. ... Publications with keywords: AB Aurigae - dust disk - planet formation . ... The Doomed Dust Disk of NGC 7052 . ...

... 2003 February 8 . AB Aurigae: How To Make Planets . ... NASA . Explanation: This enhanced Hubble Space Telescope image shows in remarkable detail the inner portion of the disk of dust and gas surrounding the star AB Aurigae. Knots of material, visible here for the first time, may well represent an early stage of a process which could result in the formation of planets over the next few million years. AB Aurigae is a young star (2-4 million years old), about 469 light-years distant. ...

... Check here for the latest news related to my research. Paper on the Discovery of ROXS 42Bb, a planetary mass companion 10.01.2013 I am co-author of a new paper accepted to ApJ Letters on the discovery of a co-moving companion to a tight, low mass binary in a star forming region. ... Paper on Fomalhaut Accepted to ApJ Letters 9.03.2013 I am co-author of a new paper submitted to ApJ Letters on re-analyzing deep archival Keck/NIRC2 data for additional companions to Fomalhaut. ...

... Since planets are expected to form out of the material in disks around young stars, the formation of a planet will thoroughly alter the structure of the circumstellar disk of their host star, forming significant gaps in the radial distribution of matter around the star. Additionally, processing of solids (annealing/crystallization) and changes in the overall gas/dust ratio are thought to happen during the planet formation process and are believed to alter the observational signature of the disk. ...

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. ...

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... The Fiery Birth of Chondrules . ... Chondrules are among the oldest objects in the solar system, dating back to the period when the Sun formed" says Anders Meibom of Stanford University, coauthor of a new paper that examines the chondrules in two chondrites to learn more about how the planets in our solar system formed. ... Lightning zaps and shock waves briefly heated isolated regions of the disk, partially melting the dust. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... January . ... March . ... Posted on January 7, 2016 | 6 Comments Happy New Year! ... Continue Reading.. ... Posted on December 5, 2014 | ... Posted on March 13, 2014 | ... 2 Comments While the winter sky may be the тАШAladdinтАЩs caveтАЩ for skywatchers, and we may already have plundered deeply one of its greatest celestial treasures, the constellation of Orion, we forge [ ] . ... Posted on January 16, 2014 | ...

... General information . ... Staff . Research staff . ... Information . ... Historical highlights . Historical research . ... This process is thought to occur in circumstellar disks of gas and dust around young stars on rather short timescales : infrared surveys show that the number of low mass stars with disks drops dramatically for stars older than 10 Myr, suggesting that in order to form large solids before the disk disperses, the growth process has to take place within a few million years. ...

... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

K?nigl, A. & Salmeron, R. 2010. ... K?nigl, A., Salmeron, R. & Wardle, M. 2010. ... Wind-driving protostellar accretion discs - I. Formulation and parameter constraints . ... Magnetorotational instability in protoplanetary discs: The effect of dust grains . Salmeron, R., K?nigl, A. & Wardle, M. 2007. ... Magnetorotational instability in protoplanetary discs . ... Magnetorotational instability in dusty protostellar discs. ... Magnetorotational instability in protostellar discs . ...

Lab . Main page News People . ASA . Master . Master net Homepage . ... Lomonosov Moscow State University Sternberg Astronomical Institute . ... MASTER . ... Lomonosov (ShOK) . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . People, who work in lab . Latest news and news archive . ... All news ...

Planetary Formation is though to occur via an accretion process in a disk of gas and dust that settles into orbit about the host star. ... The identification of dusty disks around young stars would constitute excellent evidence that this process is common and that planetary formation is a natural consequence of star formation. ... This discovery, courtest of Dr. C. O'Dell at Rice University, is consistent with previous discoveries of dusty disks around nearby stars. ...

... Research . ... NASA's "follow the water" philosophy has led me to study atmosphere-regolith interactions on Mars in search for locations and times where liquid water is available. ... Transient liquid water and water activity at Gale crater Mars. ... Rivera-Valentin, E. G. , Chevrier, V. F., 2015. ... Icarus , 253, 156-158. Lopez Garcia, E. J., Rivera-Valentin, E. G. , Schenk, P. M., Hammond, N. P., Barr, A. C., 2014. ... Icarus , 237, 419-421. ... Chevrier, V. F., Rivera-Valentin, E. G. , 2012. ...

... Dept. for Physics of Stars&Galaxies . ... Astronomical Calendar . ... History of MAO . ... БЂ“ 2013. ... Zakhozhay O. and Vorobyov E.I. The signatures of disk fragmentation in spectral energy distributions // Proceedings of the conference Hot Planets and Cool Stars, Garching, November 12-16, 2012. ... Zakhozhay O.V., Vorobyov E.I. Spectral energy distributions of fragmenting protostellar disks // Formation, detection, and characterization of extrasolar habitable planets Proceedings IAU Symposium No....

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. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Prof. N.V. Voshchinnikov . ... Astronomy and Astrophysics Supplement , v.128, p.187-196. PDF file ] . Voshchinnikov N.V., Mathis J.S. (1999) Calculating cross sections of composite interstellar grains. ... Voshchinnikov N.V., Kruegel E. (1999) Circumstellar disk of beta Pictoris: constraints on grain properties from polarization. Astronomy and Astrophysics , v.352, p.508-516. ... Il'in V.B., Krivova N.A., Michel B., Voshchinnikov N.V. (1999) WWW database of optical constants for astronomy. ...

Dr. Victoria I. Prokhorenko . ... Situation Analysis of The "PROGNOZ" Orbit for Solar- Terrestrial Space Experiments. ... Studies of Satellite Situations Mission. ... A Situation Analysis of the Orbits of the Tail and Auroral Probes in the "INTERBALL" Project. ... Specific Tasks of Multiple Scale Plasma Measurement in Regatta- Cluster System (co-authors S. Savin and L. Zelenyi)- In Book: Proceedings of an International Workshop on Space Plasma Physics Investigations by Cluster and Regatta. ...

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...