... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

Еще в разделе: (Показать все результаты (>362) - zebu.uoregon.edu/ )

... Up: Science Data Pipelines . ... We designed and developed a package which simulates extragalactic point source data within a given field of view and SIRTF band. ... The simulator is modular and extensible to enable multi-wavelength simulations, has been optimized by utilizing parallel processing capabilities, and will be used to test pipeline software. ... The extragalactic simulator is capable of generating large numbers of galaxies within a given patch of sky for SIRTF pipeline testing. ...

Еще в разделе: (Показать все результаты (>1892) - www.adass.org/ )

• ADASS 2002 Conference Proceedings
• An Integrated Procedure for Tree N-body Simulations: FLY and AstroMD
• Enhanced HST Pointing and Calibration Accuracy: Generating HST Jitter Files at

Welcome to the Starburst and Galaxy Evolution website.

Еще в разделе: (Показать все результаты (>18938) - www.stsci.edu/ )

• HST this week: 260
• HST this week: 141
• HST this week: 057

... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Late Stages of Stellar Evolution . Welcome to the home page of the Late Stages of Stellar Evolution" We are a research group which operates within the Astrophysics Group of the Australia Telescope National Facility. ... To investigate the late stages of stellar evolution and in particular the role of stellar mass-loss in the evolution of asymptotic giant branch stars, proto-planetary nebulae and extremely massive stars. ...

Еще в разделе: (Показать все результаты (>24814) - www.atnf.csiro.au/ )

• Period evolution of PSR B1259-63: Evidence for propellor-torque spindown
• Local HI: Constraints on the evolution of the HI content of the Universe
• Radio Source Evolution Unified Schemes

... AA(Max-Planck-Institut f r Radioastronomie, 53121 Bonn, Germany), AB(Max-Planck-Institut f r Radioastronomie, 53121 Bonn, Germany), AC(Max-Planck-Institut f r Radioastronomie, 53121 Bonn, Germany), AD(Special Astrophysical Observatory, Nizhnij Arkhyz, 357147, Russia), AE(Stockholm Observatory, 13336 Saltsj baden, Sweden) . ... 241B Structural and chemical changes during the AGB and post-AGB evolution are discussed with respect to two recent observational and theoretical findings. ... Abstract Text ....

Еще в разделе: (Показать все результаты (>858) - jet.sao.ru/ )

• Laboratory for the Stellar Magnetism Study of SAO of the RAS - Physics and

Bizyaev D., "The Argument Against Long Extragagalactic Distance Scale", Astron. ... Soviet Astronomy) 1997. ... Zasov A., Bizyaev D., "An Estimate of the Hubble Constant using a Criterion for Gravitational Stability of Gaseous Discs", Pis'ma v Astron. ... 1996. ... D.Bizyaev, "Types of galaxies", 1996, Zvezdochet, No 11, p.22 (in Russian) . D.Bizyaev, "The Hubble Constant", 1996, Zvezdochet, No 2, p.20 (in Russian) . D.Bizyaev, "Magellanic Clouds", 1995, Zvezdochet, No 6, p.12. (in Russian) . ...

Еще в разделе: (Показать все результаты (>124) - comet.sai.msu.ru/ )

... The acquisition data base of meteorological temporal data including systematic and chronologic cataloque for Global Tropical Cyclogenesis (on the whole of World Ocean's aquatorium) for 1983-1992 time interval is developed and based on personal computer IBM PC/AT. ... The data base consists of the following units: 1. ... This data base offers a unique opportunity to analyze macro- and synoptic-scale temporal features of global tropical cyclogenesis as indivisible physical process. ...

Еще в разделе: (Показать все результаты (>19) - smis.iki.rssi.ru/ )

With the Square Kilometre Array planned to begin observations in around a decade and large neutral hydrogen multibeam surveys currently underway at Arecibo, the question of what we can learn about the evolution of galaxies through neutral hydrogen observations is very timely. ... Robert Minchin (NAIC, chair) . Emmanuel Momjian (NRAO) . ... Robert Minchin (co-chair) . Emmanuel Momjian (co-chair) . ... R. Minchin & E. Momjian ...

Еще в разделе: (Показать все результаты (>4582) - www.naic.edu/ )

• The Evolution of Galaxies through the Neutral Hydrogen Window The Evolution of
• Murray Lewis

We investigate models for main-sequence and horizontal-branch (HB) stars constructed using the Carson opacities and make comparisons with models based on the Cox-Stewart opacities. ... The drop in the hydrogen-shell luminosity due to the helium-core expansion during HB evolution is greater than that obtained with the Cox-Stewart opacities. ... Studies of main-sequence (MS) stars lead to agreement with Stothers' (1974a,b, 1976) results for homogeneous models constructed with Carson opacities. ...

Еще в разделе: (Показать все результаты (>2250) - star.arm.ac.uk/ )

• EXTREME HELIUM STARS: PULSATION AND EVOLUTION
• Abstract
• Armagh Observatory

... Astrophysics Group . Graduate Research Opportunities 2016 . Available research projects/areas . ... Astrophysics Admissions Form . ... This includes active participation in the development of new instruments as well as the use of ground and space observatories. ... Further details are available at the following web site: http://www.mrao.cam.ac.uk/research/extragalactic-group-2/ . ... Our research group has a wide range of expertise in the development of receivers for radio astronomy. ...

Еще в разделе: (Показать все результаты (>1513) - www.mrao.cam.ac.uk/ )

• Astrophysics Group: Galaxy Evolution
• Galaxy Evolution Bojan Nikolic web pages (r. 329)
• Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA

... The distributions of orbits eccenttricities and of angular momenta for the halo stars and the old disk population are considered. The distributions have gaps separating the halo from the disk and dividing the halo population into three groups. ... Рассмотрены распределения звезд гало и старого населения диска по величине эксцентриситета орбит и угового момента. Распределения имеют провалы, отделяющие гало от диска и делящие населения гало на три группы. ...

Еще в разделе: (Показать все результаты (>69) - ip.rsu.ru/ )

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Evolution of SN 1987A . ... Science Users Information . Observing Facilities . ... Paranal Facilities . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... Science in Garching . ... ESO Science Newsletter . ... Seminars at ESO Garching . ... Return to list of thesis topics . ...

Еще в разделе: (Показать все результаты (>66158) - www.eso.org/ )

• ESO - Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm
• ESO - Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies
• ESO - Thesis Topic: Evolution of the interstellar medium in galaxies from

home education > resources . SEARCH ASP SITE: Match ALL words Match ANY word . ... The Universe in . ... http://cosmictimes.gsfc.nasa.gov/ (James Lochner and Barbara Mattson have compiled a rich resource of 20th-century cosmology history in the form of news reports on key events) . ... Sean Carroll (Caltech): The Origin of the Universe and the Arrow of Time (Aug. ... Adam Reiss (STScI): Dark Energy and the Fate of the Universe (March 7, 2006 at the Space Telescope Science Institute): . ...

Еще в разделе: (Показать все результаты (>1061) - www.astrosociety.org/ )

• ASP: Family ASTRO: History and Evolution
• ASP: Stellar Evolution (a la Chez Stella)
• ASP: Project ASTRO History & Evolution

... Evolution of the coalescence rate of double neutron stars (NS) and neutron star - black hole (BH) binaries are computed for model galaxies with different star formation rates. Assuming gamma-ray bursts (GRB) to originate from NS+NS or NS+BH merging in distant galaxies, theoretical - distributions for gamma-ray bursts (GRB) are calculated for the first time taking the computed merging rates into account. ... Effect of sources evolution on - distribution and -test. ...

Еще в разделе: (Показать все результаты (>806) - xray.sai.msu.ru/ )

• ADS Abstract Service Results
• Astronomical Resources
• Contents

... user-defined data file formats . ... better integration with a user's analysis routines To add such functionality to SAOimage, we developed the XPA Messaging System that allows X programs to define points of public access through which data and commands can be exchanged with external programs. ... We have utilized XPA to develop "SAOimage: The Next Generation" (SAOtng), an extensible image display service that can cooperate with other processes and programs. ... SAOtng help pages . ...

Еще в разделе: (Показать все результаты (>2527) - hea-www.harvard.edu/ )

• Southern SHARC survey
• Aims of ChASeM33?
• Statistics 310 2007-2008

... Inhomogeneous planetary nebulae: Carbon and Oxygen abundances, Astron. ... Abstract . text in English . ... text in Russian . ... Chemica evolution of the system of galactic planetary nebulae , Astrophysics, 45 , 451-463 (2002) . ... Evolution of Elemental Abundances in Planetary Nebulae, Astronomy Letters, 32 , 557-565 ( 2006 ) . ... text in Russian (0.23Mb) . ... He, C, N, and O Abundances in an Ensemble of Galactic Planetary Nebulae, Astronomy Letters, 35 , 518-533 ( 2009 ) . ...

Еще в разделе: (Показать все результаты (>291) - www.astro.spbu.ru/ )

• Galaxy chemical evolution
• Abstract book | Radiation mechanisms of astrophysical objects: classics today

... Shustov B.M., Wiebe D.S. Dust expelling from the Galaxy ( abstract from the journal ). Astronomy Reports , 1995, 39 , 578-586 [AZh, 72 , 650-659]. Wiebe D.S., Shematovich V.I., Shustov B.M. Chemical and dynamical evolution of protostellar clouds: initial stages of collapse ( abstract from the journal ). ... Shustov B.M., Wiebe D.S., Tutukov A.V. Evolution of disk galaxies and loss of heavy elements into the intracluster medium. ... ApJ (Letters), 1998, 503 , L71-L74 ( astro-ph/9806155 ). ...

Еще в разделе: (Показать все результаты (>47) - www.inasan.rssi.ru/ )

• Star Formation History
• Future of the Galaxy
• Home page of Dmitri Wiebe

Evolution of Apophis Orbit for 1000 Years and New Space Targets . ... It will be its closest approach to Earth during the next 1000 years. ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), evolution of Apophis orbit, new space targets, uncertainty of Apophis trajectories, imperfections in determination methods, differential equations, new numerical methods, Apophis' closest approach to Earth, transforming Apophis' orbit to an Earth satellite orbit. ...

Еще в разделе: (Показать все результаты (>861) - www.ipa.nw.ru/ )

• Keywords_102
• Keywords_172
• Keywords_61

Close binary systems of the RS CVn and Algol type are characterized by a highly variable radio emission, from typical flux densities of a few mJy during low-activity (quiescent) periods, up to 1 Jy during strong flares. The origin of this radio emission is attributed to the gyrosynchrotron mechanism. Several observations of these stars have shown an evolution of the radio spectrum during both the rising and decay phases of flares. ...

Еще в разделе: (Показать все результаты (>11414) - www.arcetri.astro.it/ )

• httxt2dbm - Generate dbm files for use with RewriteMap - Apache HTTP Server
• Password Formats - Apache HTTP Server
• INAF - Osservatorio di Arcetri

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

Еще в разделе: (Показать все результаты (>40) - sed.sao.ru/ )

• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
• Radio galaxies
• astro-ph authors/title/abstract search for 'galaxy evolution ' (skipped 100)