... Massive Stars in Open Cluster Pismis 24 . ... 19.12.2006 . ... Explanation: How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. ... APOD Editor to Discuss "Best of APOD 2006" Pictures in NYC on January 5 . ... Publications with keywords: massive stars . Publications with words: massive stars . ... Massive Stars Of 30 Doradus . ...

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• NGC 6357s Cathedral to Massive Stars
• Астронет > Massive Stars in Open Cluster Pismis 24
• NGC 6357: Cathedral to Massive Stars

... 2008 October 26 . Massive Stars in Open Cluster Pismis 24 . Credit: NASA , ESA and J. M. ApellАniz ( IAA , Spain) . Explanation: How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it a record holder. ... Component stars would still remain near 100 solar masses, making them among the more massive stars currently on record. ... About APOD | ...

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• APOD: 2008 December 1 - Massive Stars Resolved in the Carina Nebula
• APOD: 2012 November 18 - NGC 6357: Cathedral to Massive Stars
• APOD: 2005 December 8 - X-Rays from the Perseus Cluster Core

... 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. ...

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... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. December 18, 1999 . Irregular Galaxy Sextans A . ... Their newly formed, bright, blue star clusters found along beautiful, symmetric spiral arms are guaranteed to attract attention. But small irregular galaxies form stars too , like this lovely, gumdrop-shaped galaxy, Sextans A . ... About APOD > . ...

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• APOD: October 18, 1999 - NGC 3603: An Active Star Cluster
• APOD: December 13, 1997 - The Coma Cluster of Galaxies
• Arcetri Star-Formation Group Publications

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

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• Evidence for Dark Matter
• Astro-2 and the UIT Experiment

... The sharp vision of Hubble's Advanced Camera for Surveys uncovered the speedy white dwarfs in the ancient globular star cluster NGC 6397, a dense swarm of hundreds of thousands of stars. ... The distribution of young white dwarfs is the exact opposite of what we expected," said astronomer Harvey Richer of the University of British Columbia in Vancouver. ... The idea that young white dwarfs are born with a kick was suggested 30 years ago to explain why there were so few of them in open star clusters....

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• HST this week: 359
• HST this week: 335
• Fundamental Parameters, Integrated Red Giant Branch Mass Loss, and Dust

Next: Ejectors in Massive Binary Previous: Artificial Galaxy: Full Matrix . The first version of the Scenario Machine was aimed especially at the simulation of massive binary star evolution. ... First, there is a large class of intermediate mass binaries (say, consisting initially of 8 + 5 solar masses) that can also produce NS and thus lead to the formation of a bright X-ray source. ... Next: Ejectors in Massive Binary Previous: Artificial Galaxy: Full Matrix Mike E. Prokhorov . ...

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• Evolutionary Scenarios of Binary Systems
• Introduction
• Ejectors in Massive Binary Systems

Results from 6m telescope observations of globular clusters in dwarf galaxies Sharina M. We consider properties of globular clusters in dwarf galaxies observed with the multi-slit unit of the SCORPIO spectrograph at the SAO 6m telescope. ... Studying GCs in dwarf galaxies at the faintest end of the galaxy luminosity function provides valuable information for a better understanding of galaxy evolution and evolutionary connection between globular clusters and nuclei of galaxies. ...

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• http://jet.sao.ru/jet/~goray/838/v838ecl.htm
• Laboratory for the Stellar Magnetism Study of SAO of the RAS - Physics and
• Results scientific researchs 5

... A new bright LBV (Luminous Blue Variable) star was detected in M33 galaxy. LBV stars are the most massive stars in the final stages of evolution before exploding in of supernovae. ... The new LBV star (Fig.1) is the seventh in M33. ... It is one of the brightest LBV stars of the M33 galaxy. ... The brightest object is the core of the galaxy, - a compact star cluster comprising a supermassive black hole. The new LBV star N93351 is located down and to the left from the core. ...

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• Optical component of GRB080319B
• Galaxy sector, archive 2012
• CH Cyg

... Science . ... The goal is to bring together two communitities: the one working on star formation (mostly galactic) and the one working on the formation of young massive clusters (mostly extra-galactic). We will link galactic with extra-galactic work, optical/NIR techniques with sub-mm/mm/radio ones, the formation of stars with the one of massive star clusters - observations and theory. ... Coordinated by Marina Rejkuba (abstract) . ... How did star formation proceed in Globular Clusters? ...

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• ESO - The Young Star Cluster Pismis 24 in ARA: a Laboratory of Star Formation
• ESO - Thesis Topic: Dynamical models of multiple globular cluster populations
• ESO - Thesis Topic: The onset of cluster formation near young high-mass stars

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York
• Brooklyn Museum Plaza ? Amateur Astronomers Association of New York

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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• Geminid Meteors
• Armagh Observatory
• M. de Groot, Senior Research Associate

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

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• ALFALFA Dark Cloud
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters
• What is HISA?

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

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• Sources in Abell clusters
• A deep 38-MHz radio survey
• Density Determination

... Stars . ... Cepheid variable stars have been known since the 18th century. ... Regularly brightening to a peak over days, weeks or months before fading these variable stars were remarkable curiosities to astronomers in past centuries.€а The term Cepheid is taken from the star Delta Cephei in the constellation of Cepheus, which was identified as variable€а in 1784 by the teenaged prodigy John Goodricke (1764-96). ... Tweets that mention Cepheids: Inconstant Stars which break the rules | ...

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• A Spectacular View of the Lagoon Nebula | Astronotes
• stars | Astronotes - Part 6
• Stars | Astronotes - Part 2

This long-exposure Hubble Space Telescope image of massive galaxy cluster Abell 2744 is the deepest ever made of any cluster of galaxies. ... It contains several hundred galaxies as they looked 3.5 billion years ago. The immense gravity in Abell 2744 acts as a gravitational lens to warp space and brighten and magnify images of nearly 3,000 distant background galaxies. The more distant galaxies appear as they did longer than 12 billion years ago, not long after the Big Bang. ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BEBF5D4F3-3099-4674-84E7-0F96BDBAE87C%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BF1B95E3D-65BC-4E4C-9F9E-5FF1A5B0609D%7D
• Most distant massive galaxy cluster identified | Astronomy.com

... Posts tagged ?massive data? ... Tags: bimodality , chi-square minimization , Classification , CMD , Estimation , machine learning , massive data , model based , PCA , spectral analysis , spectroscopic , survey , VO . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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• X--ray Quiet PMS Candidates
• Doug Burke: Publications List
• Southern SHARC survey

... 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
• casacore: components/ComponentModels.h Source File
• ASTRONOMERS FIND MOST MASSIVE COMPANION TO RADIO PULSAR

GALAXIES cenA .tiff 40 Bright Radio Galaxy M31.tiff Nikon Andromeda Galaxy (note HII regions in spiral arms) ngc6744.tiff 40 NGC 6744 a face-on spiral clouds_20d.tiff H'blad The Magellanic Clouds our nearest neighbours Lmc_7.tiff Nikon The Large Magellanic Clouds Lmc_zoom.tiff Nikon Detail of previous image smc_7.tiff Nikon The Small Magellanic Clouds smc-zoom.tiff Nikon Detail of previous image 30dor_40_BVR.tiff 40 The 30 Dor ... B [OIII] Halpha trifid.tiff 40" The Trifid Nebula. ...

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• Blue Straggler Stars
• IAU Commission #34 (Interstellar Matter)
• GSAOI Orion Nebula Cluster Science Page

Russian . ... text in Russian) . ... The Behaviour of the Bz Component of the Magnetic Field in Coronal Mass Ejections . ... Cooperation of IZMIRAN and Sternberg Astronomical Institute in the Study of the Sublimational Component of the Solar Coronal Radiation . ... Solar Wind and Magnetic Storms in the 24th Solar Activity Cycle . ... text in English) . ... The Solar Corona in the Light of TRACE Observations . ... Expeditions of Irkutsk Astronomers to Total Solar Eclipses in 1981--2012 . ...

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