... Supernova explosion ? in a binary is treated as an instantaneous mass loss of the exploding star. ... In this case, the eccentricity and semi-major axis of the binary after the explosion can be straightforwardly calculated (Boersma, 1961[ 21 ]). ... Then, the transition to a new system barycenter frame is made (at this point the spatial velocity of the new center of mass of the binary is computed), . ... During the CE stage, an effective spiral-in ? of the binary components occurs. ...

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• Test of the Initial Mass-Ratio Distribution
• Number of accreting X-ray binaries of selected types

Nalini Chandra & John Percy, University of Toronto . ... Some works to refer to when using multicultural astronomy in your classroom: . ... Nalini Chandra is a doctoral candidate at the University of Toronto in the Department of Curriculum Teaching and Learning at OISE/UT. ... OISE-University of Toronto . ... John Percy, Professor of Astronomy at the University of Toronto, is a Past President of the ASP, and is active in astronomy education at all levels. ... ASP Multicultural Astronomy Resources . ...

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• ASP: An Ancient Universe - Changes in the Solar System
• ASP: What If the Moon Didn't Exist?
• ASP: Contents, Spring 2008

. Album : asv-album :: Travels to distant places and countries :: 1998/05 Boston (USA) :: 1 Boston streets . Up . << Prev . Policeman on the horse in Boston Commons . Next >> . Photo album generated by album a script by David Madison on Tue Jun 23 14:46:37 2015 .

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• Image: Small fountain near Boston Commons
• Image: Walk in the Boston Commons.
• Image: Memorial to fallen soldiers (?); Boston Commons

... Supernova showered Earth with radioactive debris . Behemoth black hole found in an unlikely place . ... Colliding galaxies reveal colossal black holes were common in early universe . ... were common even in the early universe, when galaxies were just forming. Astronomers have found two very different galaxies in the distant universe, both with colossal black holes at their heart, involved in a spectacular collision. ... a black hole, spinning rapidly, feeding on its parent galaxy. ...

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• т??Trojanт?? asteroids in far reaches of solar system more common than
• Buckyballs more common in space than thought | Astronomy.com
• Exocomets may be as common as exoplanets | Astronomy.com

. Common photo of participants, by I.Salnikov, click to enlarge, 523 kB . Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ISSP of Russ. Acad. Sci., Academician Ossipyan street 2, 142432 Chernogolovka, Moscow region, Russia. URL: http://www.issp.ac.ru/iao/2011/ . e-mail: gavrilov@issp.ac.ru . fax: + 7-(496-52)-28-160 . Updated 06.10.2011.

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• The IV Asian-Pacific Astronomy Olympiad: Common photo of participants
• XIII International Astronomy Olympiad: Common photo
• X International Astronomy Olympiad

... Download . Description . ... Utilities for building libraries and applications . ... f77 . Global COMMON referenced with f77 INCLUDE statement . ... f77/f90 . ... Tools for building a spectral atlas . ... f77/f90/make . ... Obtaining the software . ... Building subroutine libraries . ... Building spectrum . ... Detailed reports describing bugs in the download/installation procedure or in the software itself will be welcome and should be addressed to Simon Jeffery at the address below. ...

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• Armagh Observatory
• Explosive Events
• Press Release: 1st March 1999

.

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• THE HUBBLE LAW JAVA APPLET

ATMoB "Double Star Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston ґ in particular, double, triple, and multiple stars. Introduction: Double, triple, and multiple stars are the "Rodney Dangerfields" of the night sky. ... W hile they can be observed under a variety of sky conditions, double stars ґ especially close ones ґ are best viewed on nights when the seeing is steady. ... The direction from a star to Polaris is north. ...

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• http://www.atmob.org/library/member/Starparties.pdf
• Amateur Telescope Makers of Boston

... Federal Information Processing Standards Puplication (FIBS PUB 146-1) . ... PIPS 146 adopted the Government Open Systems Interconnection Profile (GOSIP) which defines a common set of data communication protocols that enable systems developed by different vendors to interoperate and the users of different applications on those systems to exchange information. ... 4.1 USE OF THE LAYERED PROTOCOL SPECIFICATIONS 12 . ... 4.2.3.3 Network Layer Protocol Identification 15 . ... SECURITY OPTIONS / 26 . ...

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• Getting Started in Actor Prolog. The idea of Logical Actors.
• Getting Started in Actor Prolog. Underdetermined Sets.
• Е.Н. Филинов, А.В. Бойченко Институт системного программирования РАН (ИСП РАН)

. The standard system directories are shown below. Each one contains specific types of file. The details may vary between different UNIX systems , but these directories should be common to all. Select one for more information on it. /( root ) | -------------------------------------------------------------- | | | | | | | | /bin /dev /etc /home /lib /tmp /usr kernel file .

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• Admonishments
• UNIXhelp Glossary - "T"
• Managing your Environment

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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• Observing with VISTA
• VISTA - Visible and Infrared Survey Telescope for Astronomy

pro prvni_event,event COMMON profily,profil1,profil2 COMMON baze2,prvnilab,prvnidraw,prvnibut, prvni1 ,prvni COMMON pozice,pozice1,pozice2 COMMON kolik,pocet2 COMMON data,kliny, obrazek COMMON uloz, cesta COMMON uloz2,obrazek2 COMMON novy,prvniposlab ; COMMON velikost,s1,s2 widget_control ,event.id,get_ uvalue = uvalue case uvalue of 'CLICK1': ...

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• http://lnfm1.sai.msu.ru/~kupry/SOFTWARE/xdividep.pro
• http://lnfm1.sai.msu.ru/grav/russian/life/chteniya/sagi2007/kuzin.pdf
• http://lnfm1.sai.msu.ru/~kupry/SOFTWARE/foto1.pro

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

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The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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• Optical constant database - Level: measurement/paper
• Silicate minerals

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit?йs . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil Exposition des navettes : la Nasa a choisi . ... La plus ancienne navette, et celle qui a le plus voyag?й dans l'espace , sera pr?йsent?йe dans une annexe du mus?йe (le Steven Udvar-Hazy Center, en Virginie), qui expose actuellement Enterprise. ...

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... Executive scientist on object Ratan-600, Academician of RAS Parijski Y.N. Deputy director of SAO RAS on radiotelescope Ratan-600 Mingaliev M.G. Radio astronomy department . Radio astrophysics laboratory . Group for study of galaxies and cosmology . ... Laboratory of continuum radiometers . ... Group of continuum observations . Group of the Sun study . ... Laboratory of the Sun study . ... Feed cabin N1 . ... Schedule archive (Russian) . ... Observation data archive of RATAN-600 . ...

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• G 89-14
• Galaxy sector, archive 2014
• Origin of the internal structures in HL Tauri jet (HH 151)

The sky inhabitants - the constellations. ... The constellations of Zodiac. The constellations of Zodiac are very popular. ... They were counted from the point of vernal equinox. ... As a result all the Zodiac row of constellations as if displaced in the two positions the count traditionally begings from the constellation where the point of a vernal equinox is. ... That is why the Sun comes to each Zodiac sign two - five weeks before the time when it comes to the constellation of the same name. ...

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... About meteorites . ... Meteoritic data . Meteorite Encyclopedia . ... About laboratory . ... In addition, meteorites are divided into falls and finds depending on how they were collected. ... In other words, by far most meteorites falling on Earth are chondrites. Finds are meteorites that were not seen to fall but were subsequently discovered on the ground, often long after they landed. ... The vast majority of meteorites in museum and private collections around the world are finds, not falls. ...

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Next: The STScI NICMOS Calibration Up: No Title Previous: CONICA: The high resolution . The STScI NICMOS Calibration Pipeline . Introduction . ... Dark Current Subtraction . ... Input Data . ... Scalar Background Subtraction . 2-D Background Subtraction . ... Status and Goals of the NICMOS Calibration Plan . ... Photometry . ... Photometric Performance of NICMOS . ... NICMOS Photometry. ... ST-ECF Grism Spectrum Software for NICMOS Grism Data . ... Analysis . ... STScI NICMOS Software . ...

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• MAKEASN (Nov98) --- nictools --- MAKEASN (Nov98)
• HST/NICMOS Observations of the Interacting System Arp 299
• The STScI NICMOS Calibration Pipeline

Circling around magnetic field lines. ... The ring current . Because positive ions and negative electrons drift in opposite directions (see drawing), that motion will create an electric current that circulates clockwise around the Earth when viewed from north. ... How then can the radiation belt and ring current arise? ... Electric fields are able to push trapped particles earthward, and unlike the purely magnetic motion described earlier, an electric field can also energize them. ...

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• Black aurora [Oulu]
• Electrons, Ions and Plasma
• Magnetism