... 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 . ...

Еще в разделе: (Показать все результаты (>2689) - star.arm.ac.uk/ )

• FETTU - Page 1

Stellar density and bar strength should affect the temperatures of the cool (T ~ 20-30 K) dust component in the inner regions of galaxies, which implies that the ratio of temperatures in the circumnuclear regions to the disk should depend on Hubble type. ... The strong radiation field in the high stellar density of a galactic bulge tends to heat the cool dust component to higher temperatures, at least in early-type spirals with relatively large bulges, especially when paired with a strong bar. ...

Еще в разделе: (Показать все результаты (>19201) - www.stsci.edu/ )

• Selected telescopes I have observed with

. Swirling Galaxy Parents Generations of Stars in Its Center . The NASA/ESA Hubble Space Telescope has snapped a view of several star generations in the central region of the Whirlpool Galaxy (M51), a spiral region 23 million light-years from Earth in the constellation Canes Venatici (the Hunting Dogs).

Еще в разделе: (Показать все результаты (>8119) - www.arcetri.astro.it/ )

• Hubble Provides Multiple Views of How to Feed a Black Hole (PRC98-14)
• STScI- PRC99-10: Hubble's Infrared Galaxy Gallery
• Hubble Reveals Stellar Fireworks Accompanying Galaxy Collision PRC97-34a

Astronomy Picture of the Day . ... This Hubble Space Telescope image of a group of faint galaxies "far, far away" is a snap shot of the Universe when it was young. The bluish, irregularly shaped galaxies revealed in the image are up to eight billion light years away and seem to have commonly undergone galaxy collisions and bursts of star formation. ... Superposed on an optical picture of a group of galaxies is an image taken in X-ray light. ... X-Raying the Moon . ... Skylab Over Earth . ...

Еще в разделе: (Показать все результаты (>131759) - www.astronet.ru/ )

Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ... A narrowband filter image centered on this wavelength will then readily reveal these H II regions and hence the current sites of star formation in a galaxy, The luminous blobs that can be seen here are all H II regions . ... NGC 3558 Visual . NGC 3558 Infrared . ...

Еще в разделе: (Показать все результаты (>485) - zebu.uoregon.edu/ )

• Astronomy Plus CCD Images of Galaxies
• The Galaxy Gallery: Messier Objects

... Our Galaxy . ... Stars . ... Space Flight . ... NGC 2841: a spiral galaxy some 46 million light years away. ... It is especially hard to explain this process of star birth in some spiral galaxies. ... Targets include both star clusters and galaxies, and star formation rates seen range from the starburst galaxy M82 (the Cigar Galaxy) which is creating about ten new stars in its core alone every year to the much less fecund star producer NGC 2841. ... Tweets that mention Baby stars of NGC 2841 | ...

Еще в разделе: (Показать все результаты (>2811) - www.armaghplanet.com/ )

• Other Galaxies | Astronotes - Part 2
• Kepler-11: a strange and crowded planetary system | Astronotes
• Universe | Astronotes - Part 5

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

Еще в разделе: (Показать все результаты (>383) - www.badastronomy.com/ )

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 December 25 . Star Forming Region Hubble-V . ... Hubble Heritage Team , NASA . ... Inspection of NGC 6822 shows several bright star groups, including two dubbed Hubble-X and Hubble-V. Pictured above , the Hubble Space Telescope has resolved Hubble V into the energetic stars that are lighting up the surrounding gas. ... About APOD | ...

Еще в разделе: (Показать все результаты (>6819) - www.sai.msu.su/ )

• Type of Galaxies.
• APOD: 2015 October 23 - Starburst Galaxy Messier 94
• APOD: June 26, 1995 - Spiral Galaxy M100

... A typical density of energetic ions is 1 per cubic cm., and the ions are matched by electrons, generally of lower energy. ... This region is almost empty of plasma--typical density 0.01 ion/cubic cm., the "best vacuum" in the Earth's vicinity--but it contains a relatively strong magnetic field which, since it fills a large volume, can store appreciable magnetic energy, Many believe that this is the storehouse from which substorms draw their energy, releasing it quite rapidly. ...

Еще в разделе: (Показать все результаты (>1540) - www.cosmos.ru/ )

• The magnetosphere models
• The Exploration of the Earth's Magnetosphere"
• The Sun

... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy NGC 5128 . ... NGC 5128 is the closest example of a giant early type (elliptical or S0) galaxy. Although often dubbed as a peculiar elliptical galaxy since it has a dust lane with recent star formation and an active galactic nucleus, the majority of early type galaxies have similar structures as revealed by recent surveys. ...

Еще в разделе: (Показать все результаты (>66571) - www.eso.org/ )

• ESO - Thesis Topic: Probing the central regions of galaxies
• ESO - Research Area: COSMOLOGY AND THE EARLY UNIVERSE
• ESO - PhD Thesis Topics offered by ESO Faculty Members

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

Еще в разделе: (Показать все результаты (>728) - www.mso.anu.edu.au/ )

• David Nicholls: CV and publications
• Gemini Near-Infrared Integral-Field Spectrograph (NIFS) Science.
• Dark Matter in Spiral Galaxies

... Tonight's Sky . ... Sky this Month . ... Astronomy for Kids . ... Hubble sees NGC 7090 т?? an active star-forming galaxy . ... This image portrays a beautiful view of the galaxy NGC 7090, as seen by the NASA/ESA Hubble Space Telescope. ... This image portrays a beautiful view of galaxy NGC 7090, as seen by the NASA/ESA Hubble Space Telescope. ... These structures trace the location of ongoing star formation, visual confirmation of recent studies that classify NGC 7090 as an active star-forming...

Еще в разделе: (Показать все результаты (>7385) - www.astronomy.com/ )

• Hubble sees a galaxy festooned with stellar nurseries | Astronomy.com
• Hubble unveils image of NGC 2074 | Astronomy.com
• Why can the Hubble Space Telescope see distant galaxies but not exoplanets? |

... A typical density of energetic ions is 1 per cubic cm., and the ions are matched by electrons, generally of lower energy. ... This region is almost empty of plasma--typical density 0.01 ion/cubic cm., the "best vacuum" in the Earth's vicinity--but it contains a relatively strong magnetic field which, since it fills a large volume, can store appreciable magnetic energy, Many believe that this is the storehouse from which substorms draw their energy, releasing it quite rapidly. ...

Еще в разделе: (Показать все результаты (>859) - www.iki.rssi.ru/ )

• Magnetosphere [Oulu]
• The Sun
• Satellites which look down and observe Earth

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

Еще в разделе: (Показать все результаты (>108) - space.univ.kiev.ua/ )

• Olexiy V. Agapitov presentations & posters
• Near-Earth Space
• Olexiy V. Agapitov publications

Trudy GAISH, vol. LXV, 1996 . Abstracts . The global distribution of average (5 O x 5 O ) depths . of Mohorovicic discontinuity on the Earth . ... Such analysis allows detecting whether the sources of the largest anomalies reside within the Earth's core. This is possible if the limit depths of the sources exceed the depths of the core-mantle boundary. ... by Pasinok S.L. Influence of the Earth’s cover on the polar free oscillation of the Earth’s inner core is considered. ...

Еще в разделе: (Показать все результаты (>385) - lnfm1.sai.msu.ru/ )

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

Еще в разделе: (Показать все результаты (>58) - cosmos.msu.ru/ )

An image of the grand design of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms. ... Hubble has the ability to resolve individual stars in other galaxies and measure accurately the light from very faint stars. This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100's spiral arms. ... 617) 495-7062 . Fax: (617) 495-7356 . ...

Еще в разделе: (Показать все результаты (>3588) - hea-www.harvard.edu/ )

• PAUL J. GREEN - Useful Links
• The AstroStat Slog Blog Archive [ArXiv] GRB host galaxies, Aug. 10, 2007
• Watching the Stars go `Round and `Round

The very metal-poor local dwarf galaxies - the analogs of primordial galaxies in young Universe . ... The goal of this project is the study of the properties of the local eXtremely Metal-Deficient (XMD) dwarf galaxies. ... S.A. Pustilnik, J.-M. Martin . ... Pustilnik S.A. "Dark galaxies" and local very metal-poor gas-rich galaxies: possible interrelations, in: Dark Galaxies and Lost Baryons, Edited by J.Davies and M.Disney, Proceedings of IAU Symposium No. 244, held 25-30 June, 2007 in Cardiff, UK. ...

Еще в разделе: (Показать все результаты (>1238) - www.sao.ru/ )

• Classification criteria
• HyperLEDA documentation: parameter: vdis
• Emission-line galaxies

NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... During the last 48 hours, solar activity of moderate-to-large intensity was registered with two class X events (one was a maximum X5), and also events of class M and C. Two Coronal Mass Ejections (CME) occurred in March 4 and 5 reached the Earth this (Thursday) morning, March 8 at 11 UT (7 AST), and large variations in the Earth's magnetic field and energetic particle precipitation into the poles are expected. ... Arecibo Observatory €а . ...

Еще в разделе: (Показать все результаты (>3181) - www.naic.edu/ )

• Arecibo Galaxy Environment Survey (AGES)
• New Results Confirm Dark Galaxy Existence
• The Evolution of Galaxies Seen Through The Neutral Hydrogen Line The Evolution

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

Еще в разделе: (Показать все результаты (>1341) - mavr.sao.ru/ )

• New LBV Discovered in DDO 68 Galaxy
• Discovery of an isolated dwarf spheroidal galaxy neighboring the Local Group
• Metagalaxy sector, archive 2011