... Free Floating Planets In Orion . ... The infrared data are part of a sensitive survey of this nearby star forming region in which astronomers have identified over 100 extremely low mass objects -- candidates for elusive brown dwarf stars. ... If the Trapezium is typical of young star clusters , then the survey results suggest that brown dwarfs and free-floating planets may be fairly common, but there are not enough to solve the mystery of dark matter in the Universe. ... Dust of the Orion Nebula . ...

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• Journal "Peremennye Zvezdy"
• Астронет > Free Floating Planets In Orion
• Астронет > Микролинзирование

... 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: Planet-Building on the Grandest Scales

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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• Mass Feeding and Feedback in Young Stellar Objects
• Key formulae

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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• Homepage of "Jorick Vink"
• Objects in the Sky

... Australia Telescope Compact Array . ... Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or Extremely Compact Dwarf Galaxies? ... We suggest that these objects are either super-massive star clusters (intra-cluster globular clusters or tidally stripped nuclei of dwarf galaxies) or a new type of low-luminosity compact elliptical dwarf (``M32-type'') galaxy. ... Keywords: galaxies: star clusters -- galaxies: dwarf -- galaxies: formation . ... Properties of the compact objects ...

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• ATNF Colloquium
• Summary
• Measuring the Mass of the Compact Object from Companion Star Data

... 2003, ApJL, in press . ... 2003, A , in press . HST/STIS observations of rotation of T Tauri jets . ... 2003, Proceedings of "JENAM 2002: The early stages if star formation", in press . ... 2003, ApJ, in press . ... S. Hotzel, J. Harju, C.M. Walmsley . ... E. Habart, A. Abergel, C.M. Walmsley, D. Teyssier . ... Codella, C., Bachiller R., Benedettini M., Caselli P. MNRAS, 2003, in press . ... Bianchi S., Goncalves J., Albrecht M., Caselli P., Chini R., Galli D., Walmsley M. 2003, A 399, L43 . ...

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• Francesco Fontani's list of publications
• Accretion disks in luminous young stellar objects
• Rocky accretion in a young solar-type star

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• Potential Energy
• Astronomy HyperText Book: Stellar Clusters
• Fundamentals of Mechanics

... 2000 March 31 . Free-Floating Planets In Orion . ... The infrared data are part of a sensitive survey of this nearby star forming region in which astronomers have identified over 100 extremely low mass objects -- candidates for elusive brown dwarf stars. ... If the Trapezium is typical of young star clusters , then the survey results suggest that brown dwarfs and free-floating planets may be fairly common, but there are not enough to solve the mystery of dark matter in the Universe. ...

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• APOD: 2014 April 22 - The El Gordo Massive Galaxy Cluster
• APOD: 2001 February 22 - 3C294: Distant X Ray Galaxy Cluster
• Types of Nebulae

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2012 > Star and Planet Formation Workshop . ... Observing with ESO Telescopes . ... On 14 May 2012 we held a one-day workshop in the ESO Auditorium with the aim of bringing the star and planet formation community from ESO-MPE-USM together. ... J. Ascenso (ESO) Star formation in giant complexes . ... C. Manara (ESO) The role of accretion in the formation of stars and planets: a VLT/X-Shooter perspective . ...

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• ESO - Central Massive Objects: The Stellar Nuclei - Black Hole Connection
• ESO - star07
• ESO - Thesis Topic: The onset of cluster formation near young high-mass stars

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

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• articles_flera_en
• articles_alex_01
• Galaxy sector, archive 2012

... Since the reddening found for the stars in Table 13 was small, no reddening correction was attempted. ... These diamonds indicate the positions of very low mass, 3 Myr old, objects from the work of Burrows et al. ... This optical V versus R - I scheme is a very powerful method of detecting very low mass (VLM) objects. ... Because of this, young brown dwarfs are intrinsically no more difficult to observe in the optical than low mass stars at the age of Orionis. ...

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• The AstroStat Slog massive data

... Research . ... GPI Data Pipeline . ... GPI . ... My research focuses on high contrast imaging of circumstellar material: disks, envelopes, jets, and substellar companions. ... The second, harder challenge is achieving sufficiently high contrast: scattered light from circumstellar dust is faint, usually less than a percent of the total flux, sometimes far less. ... In addition to planet detection, GPI will also feature a polarimetric imaging mode for studies of circumstellar dust disks. ...

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• HST this week
• Understanding Radio-selected Thermal Sources in M33: Ultraviolet, Optical,
• HST this week: 338

... 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 . ...

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• Weird Object: Pulsar Planets | Astronomy.com
• Disk surrounds planetlike object | Astronomy.com
• Astronomers directly image massive star's "super-Jupiter" | Astronomy.com

... Bispectrum Speckle Interferometry of the Massive Protostellar Object S140 IRS 1: Evidence for Multiple Outflows . ... P21W Bispectrum speckle interferometry is emplyed to explore the deeply embedded young stellar object S140 IRS 1 and its environment. ... The diffuse structures around IRS 1 seem to trace the interaction of energetic outflows from IRS 1 with the circumstellar material. ...

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• GRB follow-up team
• Main Researches Activities
• Publications

Astronotes Armagh Planetarium's Stellar Blog! ... Milky Way . Stars . ... This dramatic image depicts Omega Centauri, one of 200 or so globular clusters orbiting our Milky Way galaxy. ... Swarms of tightly packed stars, numbering in the thousands to low millions, globular clusters are cosmic fossils, relics of the early times of our galaxy. Omega Centauri may actually be the core of a smaller galaxy ripped apart and assimilated by our own Milky Way in the distant past. ...

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• Pluto and Eris: when is a planet not a planet? | Astronotes
• Dawn at Ceres | Astronotes
• The Mystery Object of M82 | Astronotes

... Prof. Yu.Yu. Balega, corr.-member of the Russian Academy of Science, director of the Observatory . ... Weiget G., Balega, Yu.Yu. et al. ... Astronomy and Astrophysics , v.381, p.905-913. PDF file ] . ... 2002) Diffraction-limited bispectrum speckle interferometry of the Herbig Be star R Mon. Astronomy and Astrophysics , v.392, p.937-943. ... 2002) Bispectrum speckle interferometry of the B[e] star MWC 349A. Astronomy and Astrophysics , v.395, p.891-898. ...

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• Conference Proceedings | Radiation mechanisms of astrophysical objects:
• Slide shows and posters | Radiation mechanisms of astrophysical objects:

The elements of the numbered minor planets are given with respect to the ecliptic and equinox J2000.0. ... In the Table these values are given to 0.01. ... A dash indicates that there is no opposition in 2015. 1 a.u., 1.017 a.u. 1 a.u., q <= 1.017 a.u.), At stands for Aten type ( a . ... It should be noted that all objects included into the Tables of NEAs, Centaurs and transneptunian objects, and some unusual planets can be also found in the Table of elements and opposition dates of all minor planets. ...

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• Keywords_237
• Laboratory of minor bodies of Solar system
• ENGAMPLE

Our early publications since 1990 till 1995 year . ... 7.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu.Kniazev, J.A. Stepanian, 1990, Nature, 343, 238, Unusual low heavy-element abundance found in the blue compact galaxy SBS 0335-052 8.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu,Kniazev, J.A.Stepanian, 1990, Physical Processes in Fragmentation and Star Formation, 1990, Kluwer Academic Publisher, p.235-240. ... New blue compact dwarf galaxies with low heavy-element abundances. ... 1993. ...

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• Density Determination
• The very metal-poor local dwarf galaxies
• Tclet for Cluster Database.

... Bad Astronomy . ... Bitesize Astronomy . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... The large blob near the top of the image is actually two stars orbiting one another. ... The interest has been generated by the point-like object below the binary stars. ... As theory goes, it is possible that planets around binary stars (or even systems with more than two stars) can be ejected from the system, literally thrown off to wander through space. ...

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• Phil Plait's Bad Astronomy: Misconceptions: Coast to Coast Am
• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Misconceptions: James McCanney's Nonsense

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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