... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

... This chapter discusses values that JavaScript recognizes and describes the fundamental building blocks of JavaScript expressions: variables and literals. ... So, for example, you could define a variable as follows: . var answer = 42 And later, you could assign the same variable a string value, for example, . ... These are fixed values, not variables, that you literally provide in your script. ... A string literal is zero or more characters enclosed in double ( " ) or single ( ' ) quotation marks. ...

To change to using another printer for the current login session: PRINTER=ps2 . ... To change to using another editor for the current login session and inform (export) this value to other programs which use it: EDITOR=vi export EDITOR . This changes the user's default editor to vi and exports this value to other programs - such as electronic mail - which make use of it. To change to using another pager for viewing files the user adds the following lines to their .profile file. ...

... By means of deep optical images obtained at the Special Astrophysical Observatory 6-m telescope it was discovered that some Seyfert galaxies that were earlier considered to be non-interacting objects displayed signatures of elongated tidal envelopes belonging to satellite debris. ... Our results suggest that statistic studies based on popular imaging surveys (for example SDSS) can lead to an underestimation of the fraction of minor mergers among galaxies with active nuclei (AGN). ...

Next: Initial binary parameters Up: Population synthesis of Previous: Introduction . Monte-Carlo method for statistical simulation of binary evolution was originally proposed by Kornilov & Lipunov (1983a,b) for massive binaries and developed later by Lipunov & Postnov (1987) for low-massive binaries. ... Recently Leitherer & Heckman (1995) have modelled star formation for elliptical and spiral galaxies, taking into consideration only the single stars. ... Initial binary parameters . ...

XMMнNewton CCF Release Note XMMнCCFнRELн315 Astrometry: time variable boresight update A. Talavera and P. RodrТРguez July 28, 2014 1 CCF components Name of CCF VALDATE List of Blocks changed CAL VERSION XSCS flag XMM BORESIGHT 0024 2000н01н01T00:00:00 OM ANGVAR No EMOS1 ANGVAR EMOS2 ANGVAR EPN ANGVAR RGS1 ANGVAR RGS2 ANGVAR 2 Changes The XMMнNewton Time Variable Boresight was implemented in 2012. It is described in the release notes XMMнCCFнRELн286 and XMMнCCFнRELн290. ...

... Help the observer to classify the variables as classical Cepheids (C1), type II Cepheids (C2) and RR Lyrae stars (R). ... Notes: Classical Cepheid stars are a type of pulsating variable stars, which show linear relationship between period of pulsation and absolute luminosity in a log-log plot. ... RR Lyrae stars are another type of pulsating variable stars which show very short period (less than 1 day) of pulsation and for all RR Lyrae stars, the absolute luminosity is nearly constant. ...

... В теме В разделе По форуму . ... Темы, интересные всем ? ... Научная панорама ? arxiv:0705.4195 VSOP: The Variable Star One-shot Project . предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. ... arxiv:0705.4195 VSOP: The Variable Star One-shot Project I. Описание проекта и первый релиз данных (VSOP: The Variable Star One-shot Project I. Project presentation and first data release) . ... VSOP - The Variable Star One-shot Project ( http://vsop.sc.eso.org/ ). ...

... Proposal Type: Regular General Category: Astronomy Sub­Category: Spectroscopy Observation Category: Solar System Total Time Requested: 31 Hours Minimum Useful Time: full transits are needed Proposal Title: CAN WE MEASURE MAGNETIZED ELECTRON DENSITY FLUCTUA­ TIONS IN MIRA­VARIABLE­STAR CORONAE? ... The technique uses the propagation e#ects on a spacecraft downlink carrier. ... With their activity, Mira variables probably have much stronger atmospheric e#ects than the Sun. ...

... 2. (a) Metallicity function and relations between (b) metallicity and radial velocity, (c) metallicity and maximum distance from the Galactic plane,and (d)metallicity and variability period for RR Lyrae variables in the initial sample.The curve in the first graph is the maximum-likelihood approximation of the distribution using a sum of two normal curves with the indicated means,dispersions,and total numbers. ... next figure | privious figure . ...

... Astronomy in a Small Nation . Julio Vannini . Thursday, Oct 14, 2010 at 8:00 PM . Amateur astronomer Julio Vannini will discuss the dawn, downfall, and rebirth of astronomy in his small Central American nation of Nicaragua. ... But in recent years, astronomy has enjoyed a renaissance. Julio will discuss the challenges, achievements, and dreams of Nicaraguan amateurs as they work to rebuild public enthusiasm for astronomy. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Namespaces . ... coordConvWithFP . ... tcc.axis.coordConvWithFP Namespace Reference . ... Convert a coord from one coordinate system to another. ... from coordinate system; a coordConv.CoordSys if one matches, else an object containing getName() and getDate() (for gimage and gprobe coordinates the date is the guide probe number) . ... Definition at line 22 of file coordConvWithFP.py . list tcc.axis.coordConvWithFP.__all__ = ["coordConvWithFP"] . ...

... Up: Data Analysis Tools, Techniques, and Software . Previous: Starfinder: a Code for Crowded Stellar Fields Analysis . Table of Contents - Subject Index - Author Index - PS reprint - . ... 216, Astronomical Data Analysis Software and Systems IX, eds. N. Manset, C. Veillet, D. Crabtree (San Francisco: ASP), 627 . ... Kitt Peak National Observatory, National Optical Astronomy Observatories, P.O. Box 26732, Tucson, AZ 85726 . ...

... astro-ph . ... A Catalog of almost 3900 variable stars . ... Properties of Dust Grains in Planetary Nebulae - I. The Ionized Region of NGC 6445 . ... A model of the ionized region is constructed, using the photo-ionization code CLOUDY 90.05. ... The most likely conclusion is that grains are residing inside the ionized region of NGC 6445 and that the low temperature and flux of the grain emission are caused by the low luminosity of the central star and the low optical depth of the grains. ...

... Curriculum Vitae Observations and theory of star cluster formation 22) A.K.Dambis and Yu.N.Efremov Journal for History of Astronomy, 31, 115-134, 2000 Dating Ptolemy's star catalogue through proper motions: the Hypparchan epoch 23) B.G.Elmegreen, Yu.N.Efremov, S.Larsen Astrophys. J., 535, 748 - , 2000 A young globular cluster in the galaxy NGC 6946 24) Yu.N.Efremov. ... 28) Yu.N.Efremov. ... The location of star complexes in the Galaxy was studied in papers with E.Alfaro, L.Berdnikov and T.Sitnik. ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

Born: March, 29 1962 (Moscow) . ... Inst., ... Inst. in 2001. Title of thesis: "Matrix models and geometry" . ... Courses in theoretical mechanics, field theory, and string theory in the College of Mathematical Physics of Independent Moscow University in years 1994--2001. ... Quantum field theory: gauge and supersymmtric theories, matrix models and integrable systems, graph theory. ... By L.O.Chekhov and R.C.Penner Russ.Math.Surv. ... 7) Matrix models versus Seiberg-Witten / Whitham theories. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... General Accessories . ... Variable Projection Tele-Extender . ... The Meade 07348 Variable Projection Tele-Extender for LX Models requires the Meade 07182 eyepiece holder and offers different focal ratios while creating eyepiece-projection photography. ...

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