... Massive Star Forming Region DR21 in Infrared . ... JPL , Caltech , NASA Explanation: Deep in the normally hidden recesses of giant molecular cloud DR21, a stellar nursery has been found creating some of the most massive stars yet recorded. The orbiting Spitzer Space Telescope 's Infrared Array Camera opened the window into the cloud last year in mid- infrared light. The cloud is opaque to visible light because of dense interstellar dust . ... A Galactic Star Forming Region in Infrared . ...

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• Star Forming Region Hubble X
• Астронет > Massive Star Forming Region DR21 in Infrared
• Астронет > Star Forming Region Hubble X

Next: M.E. Bailey, Director Up: Research Previous: C.S. Jeffery, Research Astronomer Contents . ... How do Stars Form? ... Other Work and Activities . ... The interaction of young stars with their surroundings are accentuated within Herbig-Haro Objects, where streams and `bullets' of ejected gas impact on the ambient molecular clouds. ... The astrophysical jets are spectacular. ... Michael Smith and collaborators have searched for, and found, the first evidence of rotation within the jets. ...

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• Impact Hazard
• Armagh Observatory
• High-Mass Star Formation

The H II complex N 44 in the Large Magellanic Cloud (LMC) provides an excellent site to perform a detailed study of star formation in a mild starburst, as it hosts three regions of star formation at different evolutionary stages, and it is not as complicated and confusing as the 30 Doradus giant H II region. We have obtained Spitzer Space Telescope observations and complementary ground-based 4 m uBVIJK observations of N 44 to identify candidate massive young stellar objects (YSOs). ...

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• Spitzer Sage Survey of the Large Magellanic Cloud. III. Star Formation and
• Dusty HII Regions and Planetary Nebulae
• The youngest massive protostars in the Large Magellanic Cloud

... 2004 April 14 . Massive Star Forming Region DR21 in Infrared . ... Explanation: Deep in the normally hidden recesses of giant molecular cloud DR21, a stellar nursery has been found creating some of the most massive stars yet recorded. The orbiting Spitzer Space Telescope 's Infrared Array Camera opened the window into the cloud last year in mid- infrared light. The cloud is opaque to visible light because of dense interstellar dust . ... About APOD | ...

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• APOD: 2001 February 16 - Star Forming Region Hubble X
• APOD: 2007 September 24 - A Galactic Star Forming Region in Infrared
• Kuiper-Oort

... This is combined emission from all the gas clouds circling the black hole, between 0.1 and 10 light years out. ... These are the expanding clouds of gas left behind when a massive star comes to the end of its life and explodes, producing a supernova. ... Also known as the Veil nebula, a vast and beautiful whispy nebula left over from an exploding star. ... The Crab Nebula (120kb). ... Carbon Star (120kb) Red giant stars, surrounded by clouds or carbon dust. ... 3500 K star (64kb) , like Aldebaran. ...

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• GSAOI Orion Nebula Cluster Science Page
• Mass Feeding and Feedback in Young Stellar Objects
• Gemini Near-Infrared Integral-Field Spectrograph (NIFS) Science.

... We present the results of an interferometric and single-dish study of G24.78+0.08, a region associated with high-mass star formation. ... We suggest that the embedded stars might be too young to have affected the surrounding molecular cloud significantly on a large scale. ... We assess that the (proto)stellar cluster lies at the center of a molecular clump with diameter of ~2 pc: to a good approximation this may be described as a spherically symmetric clump with density profile of the type n~R^(-1.8...

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• Arcetri Star-Formation Group Publications
• Arcetri Star-formation Group Research Topics
• Star formation

... 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 - Very Low Mass Stars and Brown Dwarfs
• Wide-field view of the star-forming region around the Herbig-Haro object HH
• Synthetic Star Forming Region HRDs

3) Planets and Brown Dwarfs . ... By its nature, this method is most sensitive to massive planets orbiting close to their stars. ... That means that some of the more massive extrasolar planets could actually be brown dwarfs (although the statistics of the finds suggest that most of them are not). ... Another possible difference between brown dwarfs and massive planets is how they are born. ... They would base the fundamental definition on the mode of formation: a planet is built from planetesimals. ...

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• ASP: Black Holes

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

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• Classification of Objects in the Guide Star Catalog
• ADASS 2003 Conference Proceedings

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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• Planetary Formation
• Astronomy HyperText Book: Interstellar Medium
• Hubble Ultra Deep Field

... Triggered Star Formation . ... It is now well established that massive stars in star forming regions can trigger next generation of star formation. ... The young stellar objects (YSOs) in star forming regions have been identified using the near-infrared (NIR) and mid-infrared (MIR) observations. ... The age of YSOs, the morphology of the regions and the global distribution of YSOs indicate that the star formation can be triggered by either (RDI/ CC) of the processes. ...

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• Metagalaxy sector, archive 2011
• articles_flera_en
• Discovery of an isolated dwarf spheroidal galaxy neighboring the Local Group

... 8, ``Celestial Mechanics'', 2002 Formation and migration of trans -- Neptunian objects S. I. Ipatov 1;2 1 Institute of Applied Mathematics, Moscow, Russia 2 NASA/GSFC, Greenbelt, USA We support the Eneev's idea [1] that the largest (with diameter d?100 km) trans ­ Neptunian objects ( TNOs ) moving now in not very eccentric orbits ... The total amount of water delivered to the Earth during the formation of the giant planets was about the mass of water in the Earth's oceans. ...

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Proposal Identification No.: A2302 Date Received: 2007­Feb­01 17:03:45 Technical Page Proposal Type: Regular General Category : Astronomy Sub­ Category : Spectroscopy Observation Category : Galactic Total Time Requested: 6 Hours Minimum Useful Time: 1 hour Proposal Title: A Survey for Thermal CH 3 OH 6.7 GHz Emission toward Massive Star Forming Regions ABSTRACT: Massive stars form in dense molecular cores where the intense radiation field from young ...

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• Methanol Masers - Press Release
• The Search for HVCs in Other Galaxies
• HI Mass Function

... Triggered Star Formation" . It is now well established that massive stars in star forming regions can trigger next generation of star formation. ... The young stellar objects (YSOs) in star forming regions have been identified using the near-infrared (NIR) and mid-infrared (MIR) observations. ... The age of YSOs, the morphology of the regions and the global distribution of YSOs indicate that the star formation can be triggered by either (RDI/ CC) of the processes. 40 мин. ...

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... 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
• Chandra Images for SNR J0526.0-6604
• Watching the Stars go `Round and `Round

... Australia Telescope Compact Array Radio Imaging of the Proplyd-like Objects in the Giant HII Region NGC 3603'' . M?cke, A., Koribalski, B.S. , Moffat, A.F.J., Corcoran, M.F., Stevens, I.R. 2002, ApJ 571, 366 . ... Brenneman, L., Corcoran, M.F., Moffat, A.F.J., Marchenko, S.V., Ptak, A., Skalkowski, G., Mushotzky, R., Stevens, I.R., Mueke, A., Koribalski, B.S. , et al. ... Physical Properties of visual counterparts to X-ray sources in the giant HII region NGC 3603'' . ...

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• ATNF Colloquium
• Southern Cross Astrophysics Conference Series
• casacore: casa::ImageRegion Class Reference

... Star Atlas . ... solar system . ... stars . ... Observe the Solar System . ... What factors determine if a massive star (say, 100 solar masses) forms instead of a Sun-like star? ... Stars of all masses form from dense clumps within exceptionally cold molecular clouds. ... Massive stars tend to form at the centers of high-mass reservoirs of gas. Get instant access to subscriber content on Astronomy.com! ... A gamma-ray burst hints that LIGO's double black holes started as one massive star . ...

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• Airborne observatory views star-forming region W40 | Astronomy.com
• An anarchic region of star formation captured | Astronomy.com
• Spitzer captures turbulent region of star birth | Astronomy.com

The compression of the cloud of gas in star forming . ... These data have allowed us to create the dynamic model of the cloud of gas, around this object. ... The results on H2CO absorption lines (figure 1) have shown, that the central part of the cloud represents a clumped envelope of diameter 9 pc with radial velocity 20 km/s. The relation of radial velosity of absorption line and the whole object have allowed simple to define the direction of radial movement - itis compression. ...

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• Bispectrum Speckle Interferometry of the Massive Protostellar Object S140 IRS
• Results scientific researchs 24
• GRB follow-up team

... no comet has been observed with an orbit that indicates that it came from interstellar space, . ... From this he proposed that comets reside in a vast cloud at the outer reaches of the solar system. ... Unfortunately, since the individual comets are so small and at such large distances, we have no direct evidence about the Oort Cloud. ... T he Kuiper Belt is a disk-shaped region past the orbit of Neptune roughly 30 to 100 AU from the Sun containing many small icy bodies. ... Small Bodies .. ...

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• Comet Introduction
• The Sun

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

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• Dept. for Physics of Stars&Galaxies