... Bad Astronomy . ... Bitesize Astronomy . ... The last step encompassed them all with galaxies , and how we discovered that the Milky Way was not the entire Universe. ... And just like those star clusters, there are different kinds of galaxy clusters. ... There are vast clusters of clusters, called superclusters, which contains hundreds of thousands or even millions of galaxies. ... Our own Galaxy has 400 billion stars in it, yet there are clusters out there with millions of galaxies like our own. ...

Rastorguev А.S. "Astronomical Distances" (Lecture course for postgraduates, 2009-2016) . Part 1. ... Trigonometric parallaxes of stars. Moving clusters distances. ... Photometric distances: general approach. Normal stars as "standard candles". ... Main Sequence fitting or distance scale of star clusters. ... Moving photospheres technique. Cepheid distance scale and P-L relations. RR Lyrae distance scale. ... Globular clusters luminosity function. ...

Blackholes Forum Message . ... Black Holes And The Relation Of Matter And Anti Matter . ... Black holes... there's many different theories about this. some think that they just might be a superdense section of space... or that its the dark side of a wormhole... the list goes on.. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Astronomy Picture of the Day . Cosmic Collisions in a Galaxy Cluster . ... 22.07.1999 . ... Credit: P. van Dokkum, M. Franx (U. Groningen/ U. Leiden ), ESA , NASA Explanation: Hundreds of galaxies appear as faint smudges of light in this Hubble Space Telescope picture of galaxy cluster MS1054-03. ... July 1999 . ... Publications with keywords: cluster of galaxies - colliding galaxies . Publications with words: cluster of galaxies - colliding galaxies . ... The Hercules Cluster of Galaxies . ...

A comparative study of type I and type II supernovae . ... Sternberg State Astronomical Institute, Moscow, U.S.S.R. (Received 26 November, 1985) . ... No significant difference between SNe I and SNe II has been found in their radial distribution and frequency of outbursts in spiral galaxies. ... The radial distribution of type Ia SNe in spiral galaxies is only slightly steeper than the one for SNe II, while SNe Ib/c are more concentrated towards the central regions. ...

. F IGURE . 5. Relation between metallicity and (a) cluster Galactocentric distance and (b) distance from the Galactic plane. The straight lines are the rms regression fits for the thick-disk, entire Galaxy, and halo from top to bottom, respectively. The slopes of the lines yield the corresponding metallicity gradients. discussion in the text | previous figure | next figure .

Next: Supernova Explosions Up: No Title Previous: X-ray Luminosity Evolution . The origin of cosmic rays (CR) (especially of very high energies, >  eV) until now has been one of the unsolved problems in modern astrophysics. It is unclear as yet whether one universal mechanism of relativistic particle formation in our Galaxy operates or not, and if there are several different mechanisms, what is their relative contribution to CR formation. ... compact X-ray stars in binary systems. ...

International Service of Geomagnetic Indices (ISGI) of the IAGA . ... World Data Center C1 for Geomagnetism (WDC-C1), . Solar-Terrestrial Physics Division in Copenhagen, Denmark . ... Sodankyl Geophysical Observatory Geomagnetic and Ionospheric Data . Space Physics Text Book (Oulu): Magnetic activity indices . ... Solar Data Analysis Center (SDAC) . ... Mauna Loa Solar Observatory Analysis Center of HAO/NCAR in Boulder, Colorado . ... Neutron Monitor Server , University of Chicago . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The rates of type Ia supernovae from double degenerate mergers channel in different star formation models (left panel), and the rate contribution function to the present-day ( t disc = 10Gyr) supernovae rates in the thin disc (right panel). ... We have compared the impact of different star-formation models on the rates and numbers of DDs and on the rates of type Ia (SNIa) and core-collapse supernovae (ccSN). ...

Electronic access is now available for all ASP Conference Series Volumes. View the current list available on this page or browse the e-Book Access site . ... Vol 1-218 . ... Vol 219+ . ... Purchase the printed volume, which includes free electronic access. ... Vol. ... eds. Danielle Alloin, Knut Olsen, and Gaspar Galaz . Print ISBN: 1-58381-053-6 . e-Book ISBN: 978-1-58381-557-1 . ... Print ISBN: 1-58381-052-8 . e-Book ISBN: 978-1-58381-556-4 . ... Print ISBN: 1-58381-051-X . ...

... Telephone: 81 3 5620 9429 International Travel Division Facsimile: 81 3 5620 9400 Convention Center (CD100993-543) 5-5-2, Kiba, Koto-ku, Tokyo135, Japan SCIENTIFIC PROGRAMME: OVERVIEW Invited Discourses JD 1 The Hubble Deep Field R.E.Williams JG 2 The Cataclysmic Variable Stars B.Warner JD 3 Black Holes in the Universe I.D.Novikov Symposia S 183 Cosmological Parameters and the Evolution pf the Universe S ... The dates for this workshop are 3 - 5 March, 1997. ... March 3-5, 1997: Workshop. ...

... 2013). ... Churazov, E., Ruszkowski, M., & Schekochihin, A., "Powering of cool filaments in cluster cores by buoyant bubbles - I. Qualitative model", 2013, MNRAS, 436, 526 3. ... X. Physics of the hot gas in the Coma cluster", A&A, 554, A140 (2013) 2. ... Filaments between interacting clusters», Astronomy & Astrophysics, 550, A134 (2013) 3. ... Z.Zhang, M.Gilfanov, & A.Bogdan, 2013 Low-mass X-ray binary populations in galaxy outskirts: Globular clusters and supernova kicks A&A, 556, A9 15. ...

... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

Neutron Monitors ] [ Solar Neutrons ] [ Muon Telescopes ] [ Base Potchefstroom University ] [ Magnetometers ] [ GPS systems ] [ Ionosphere ] [ Related Data ] [ Space Weather ] . ... All Cosmic Ray Stations + InterPlanetary Data: WorldNet . Alma-AtaB (Mt.Tien Shan) DataBase of Kazakhstan Spectrograph Alma-AtaB (Mt.Tien Shan) new . ... Nagoya Muon Telescope and DATA or mail . ... Belgrade Muon Telescopes and DATA or ">mail . ... Real-Time database for Cosmic Ray Anisotropy (DB10) . ...

... 323, P 295-304 (1997). Abstract . ... 323, P 305-311 (1997). ... 323, P 312-316 (1997). ... 323, P 317-322 (1997). ... 323, P 323-336 (1997). ... 323, P 337-348 (1997). ... 323, P 349-358 (1997). ... 323, P 357-362 (1997). ... 323, P 363-373 (1997). ... 323, P 374-381 (1997). ... 323, P 382-386 (1997). ... 323, P 387-392 (1997). ... 323, P 393-394 (1997). ... 323, P 395-398 (1997). ... 323, P 399-414 (1997). ... 323, P 415-428 (1997). ... 323, P 429-441 (1997). ... helpdesk@link.springer.de . ...

Abstract -- Abundances of heavy elements decreases with increasing galactocentric distance almost in all disk galaxies. ... To explain this gradient in young objects and in the interstellar gas one has to assume that a typical disk galaxy is an open system, i.e. it expels some synthesized heavy elements into the circumgalactic space and/or accretes intergalactic gas with zero metallicity, with rates of both processes depending on the galactocentric distance. ...

... ORAL SESSION . ... Registration /Coffee . ... Sergey Bogachev : Space solar investigations in the Lebedev Institute: from Sputnik-2 to future missions . ... Splinter session. S1 : SOLARIS mission proposal (chair - S.Kuzin) . ... Morning Coffee . ... The Sun from radio to gamma rays: new results from space and ground-based observatories (part 1) . ... Szymon Gburek : SphinX and XRT observations of active regions . ... Artem Ulyanov : Nanoflares in the quiet solar corona: a view from SDO/AIA . ...

Evolution of the double neutron star merging rate and the cosmological origin of Gamma-ray burst sources " , Astroph.J., 1995, v.454, 593-596 (Lipunov, V.M. Postnov, K.A. and Prokhorov M.E.) . Evolution of SupernovaЃExplosion Rates in theЃ Universe (Jorgensen H., Lipunov.M., Panchenko I.E., Postnov K.A., Prokhorov M.E.) ApJ, 1997, v.486,p.110 . ... Formation of a Gravitationally Bound Object after Binary Neutron Star Merging and GRB phenomena " (G.V.Lipunova, V.M.Lipunov). ...

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