Astronomy Picture of the Day . Zooming in on the First Stars . ... 10.06.2003 . ... Credit: Visualization: Ralf Kaehler ( ZIB ) Tom Abel ( Penn. ... State ), Greg Bryan ( Oxford ) Mike Norman ( UCSD ) Explanation: What became of the first stars? No known stars appear to be composed of truly primordial gas -- all of the stars around us have too many heavy elements. ... June 2003 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: stars - Population III . ...

... 2003 June 10 . Zooming in on the First Stars . Credit Copyright: Visualization: Ralf Kaehler ( ZIB ) Tom Abel ( Penn. ... Simulation: Tom Abel ( Penn. ... No known stars appear to be composed of truly primordial gas -- all of the stars around us have too many heavy elements. ... Stars like this quickly fused pristine gas into heavier elements and then exploded, seeding the universe with elements that would become part of the stars we know and, ultimately, ourselves . ... About APOD | ...

... Samara State Aerospace University Staff Karpeev Sergey Vladimirovich . ... Paranin V.D. , Karpeev S.V. , Khonina S.N. Control of the formation of vortex Bessel beams in uniaxial crystals by varying the beam divergence // Quantum Electronics . ... Khonina S. N. , Karpeev S.V. , Alferov S.V. and others. ... Khonina S.N., Karpeev S.V. , Alferov S.V. Polarization converter for higher-order laser beams using a single binary diffractive optical element as beam splitter // Optics Letters. ... S.V. Karpeev ...

... Graduated Mechanical Mathematical Department of Moscow State University, 1968. PhD in Mechanical Mathematical Department of Moscow State University, 1969, "GENERATION OF LIMIT CYCLES UNDER PERTURBATIONS OF DIFFERENTIAL EQUATIONS dw/dz = - R z (z,w)/R w (z,w), WHERE R IS A POLYNOMIAL". From May 1968 Assistant Professor, from June 1972 Associated Professor, from August 96 Professor of Mechanical Mathematical Department of Moscow State University, . ... Mathematical Enlightenment (Moscow) . ...

Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders . ... Summer School in Statistics for Astronomers VII (June 6-10, 2011) . ... Statistical Challenges in Modern Astronomy V (June 13-17, 2011) * . ... Summer School in Statistics for Astronomers : The seventh summer school is an intensive week covering basic statistical inference, several fields of applied statistics, and hands-on experience with the R computing environment. ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

Term mixture regarding solar chemical composition refers to relative abundances of heavy elements. Abundances of hydrogen and helium cannot be determined reliably from observations, therefore concentration of these elements are not taken from observational data. ... Table contains only elements which are abundant enough to be included into opacity and equation of state computations. ... First "low-Z abundances" to be published were AGS05. ... 5.5 . ... 6.22 AG89 : Anders E., Grevesse N. 1989. ...

... В четверг, 14 апреля 2016 г., состоится семинар кафедры астрофизики. Повестка дня . ... Начало в 11 час.15 мин. Ауд. ... В четверг, 31 марта 2016 г., состоится семинар кафедры астрофизики . ... В четверг, 24 марта 2016 г. , состоится семинар кафедры. ... В четверг, 17 марта 2016 г. , состоится заседание кафедры. ... ОСП НИИ ПММ Национального исследовательского Томского государственного университета) . ... Copyright 2016 Астрономия в Санкт-Петербургском университете . ...

... Abstract Determine the set of osculating conic orbital elements that corresponds to the state (position, velocity) of a body at some epoch. ... In general, the elements found by this routine can have two kinds of problems: - The elements are not accurate but still represent the input state accurately. ... One recommended "sanity check" on the outputs is to supply them to the CSPICE routine conics_c and compare the resulting state vector with the one supplied to this routine. ...

Next: MARK5 and EVLBI Up: Recording Systems. ... These are specified in the SCHED station catalog with the paramters CONTROL , DAR , RECORDER and DISK . The first element is the control system -- what software (and hardware) is used to control the recording system. The options that SCHED can handle for wide band VLBI observations are VLBA and VEX. ... The new control system will initially just control the new data aquisition system and recorder. ...

XMM-Newton Science Analysis System Page: 1 calview June 28, 2006 Abstract An interactive viewer of the XMM calibration database. 1 Instruments/Modes Instrument Mode all all 2 Use pipeline processing no interactive analysis yes 3 Description The XMM calibration database is comprised of  100 calibration datasets (the current calibration le, or CCF [1]), and a number of calibration algorithms and access functions (the calibration access layer, or cal). ... The former is described in detail in cal. ...

with STS-111 · Landing: Dec. 7, 2002 ­ with STS-113 · Duration: 184 days, 22 hours, 14 minutes · Crew: Commander Valery Korzun, NASA ISS Science Officer Peggy Whitson, Flight Engineer Sergei Treschev · Elements added during mission: S1 Truss and P1 Truss · Science experiments conducted: 25 Dr. Peggy Whitson, who ... JSC engineer honored by Air Force By Kylie Moritz Royce Forman has been a leader in the field of structural integrity and The software Forman developed is called NASGRO. ...

... Format of the orbital elements | Estimation of the extrapolation errors | Version 1" of the orbital elements collection, determined by KIAM during flight and used for operations planning . Version 2" of the of the orbital elements collection, modified by IKI during flight and recommended for the orbital calculations during scientific data processing . ... Three kinds of the INTERBALL Auroral probe (IB_AUR) orbital elements' collections are presented here. ... IKI RAN | SSC IKI RAN | ...

... CNRS - RAS RFBR Associated European Laboratory "Physical Properties of Coherent Electronic States in Condensed Matter" between Institut Neel, CNRS and Kotel'nikov IRE RAS (2008-now), member . ISTC, Elements for Micro- and Nanoelectromechanics Based on the Whiskers of Quasi One-Dimensional Conductors and HTSCs (2006-2009), participation . ... RFBR, Electron and spin transport in low-dimensional structures (2013-2015) . ... RFBR, Conduction and energy states of chain structures (2010-2012) . ...

Projectile Motion: In Aristotle's view, objects moved parallel to the Earth's surface until it was time (i.e. it was their destiny) to fall back to the earth . Aristotle believed that the "natural" state of massive objects was to seek the center of the Earth. When a stone is launched, an impetus is given to it to disturb it from its natural condition. ... Archimedes' catapults lobbed quarter-ton stones at the attacking Roman ships, quickly destroying the clumsy Roman siege engine. ...

... Shevchenko Vladislav Vladimirovich . ... Position: Head of Department of Lunar and Planetary Research, Sternberg State Astronomical Institute, Moscow University, Doctor of Physics and Mathematics. ... L. Johnson Space Center - Lunar and Planetary Institute. ... Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow, 119899 , Russia, . ... V.I.Chikmachev, S.G.Pugacheva and V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow, chik@sai.msu.ru ...

Chair of solid state physics . ... The most important concepts of the modern crystallography, crystal symmetry and methods of crystal structure determination are considered. ... The main experimental aims of X-ray diffraction study of classic crystal structure and real structure are analyzed. ... Crystal lattice. ... The main diffraction schemes in representation of a reciprocal lattice: Laue method, powder diffraction method, oscillation method, X-ray diffraction on powder sample and single crystal. ...

... The RAS Meteorite Collection: State on the 1 st of June, 1999 . ... About the laboratory . ... Chondrite . ... Find 1934. Several masses totaling 25 kg . ... One mass of about 320 kg . ... One mass of 510 kg . ... One mass of 2347 g . ... One mass of 331 g . ... Many masses, 12 kg collected . ... One mass of 75.75 kg . ... One mass of about 26 kg . ... Find 1962. 2 masses 22.7 kg and 9.0 kg . ... One mass of 1250 g . ... Find 1858-1964. 13 masses totaling about 505 kg . ... One mass of 150 kg . ...

Next: GOCG Pre-Observation Products . Previous: RadioAstron Mission Element Overview . ... Observation Summary File (OSF) . GRT (Ground Radio Telescope) Schedule Files . ... How: The long-term schedulers will produce two files: GSTS-file (General Space Telescope Schedule) to be used by GOCG and LTS-file for all mission elements. ... What: The RSOG will produce schedule files for all GRTs participating in a particular observation, in the format required by each GRT. ...

home publications > mercury . ... ASP Conference Series . ... Cooking Up Heavy Elements in the Cosmos . ... Generally, only a few exceptionally inquisitive students venture beyond the simple statement to ask the question: "If massive stars can only fuse elements up to iron in their cores, then how do we get all the elements heavier than iron?" ... Furthermore, most of us are familiar with the thermonuclear fusion processes that take place in the cores of stars and generate the elements up to iron. ...