... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

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• Astronomy HyperText Book
• Astronomy HyperText Book: Stellar Clusters
• Orbital Properties of the Solar System

A small paper prepared by V.Tishkovets, P.Litvinov, and S.Beletsky (Kharkov Univ., Ukraina) provides the reader with a brief description of the problem, its solution, the developed software and its training (the PDF version of the paper is here ). ... Please, select the PAS subdirectory for the Pascal version of the code, and the FORT subdirectory for the Fortran version. A brief description of files and their purposes is given in our user notes (their PostScript version is here ). ...

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• Database of Optical Properties -- Level: subsubpage
• Database of Optical Properties
• Database of Optical Properties -- Level: subsubsubpage

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... RV Tau Variables in Globular Clusters - clues on their nature? ... This is a report of the detailed elemental abundances of RV Tau variables that reside in globular clusters, and how they compare with RV Tau variables in the field. ...

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• Programme - Abstract
• Determining Gains and Polarimetric Properties - GPCAL
• Intellectual Property Protection

... A time series analysis is applied to the photometric data obtained by the HST Fine Guidance Sensors (FGS), in order to discover new variable stars and to derive information about microvariability of a large sample of objects. ... Our project is based on a time series analysis of all data sets recorded by the FGSs in order to detect variability among the used Guide Stars. ... Based on ESO 1.5m Danish DFOSC photometry, we have verified variability for three Guide Stars. ...

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• Science Programs Having STScI Participation
• HST this week: 331
• HST this week: 110

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. ...

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• Yuri Nicolaevich Efremov - My Home Page

. Stellarium 0.12.3 . MainљPage . Namespaces . Classes . CodingљStyle . Scripting . Plugins . Renderer . FileљStructure . ClassљList . ClassљIndex . ClassљHierarchy . ClassљMembers . All . Functions . Variables . Typedefs . Enumerations . Enumerator . Properties . љ . autoAddEnabled : Satellites . autoRemoveEnabled : Satellites . filterFlag : SatellitesListFilterModel . filterGroup : SatellitesListFilterModel . Generated on Sat Aug 10 2013 17:12:46 for Stellarium by љ 1.8.3.1

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• Stellarium: Class Members - Variables
• Stellarium: Class Members - Enumerator
• Stellarium: Class Members

Here you can see an image of the central part of the Fornax Cluster taken from the Digital Sky Survey. ... We studied the globular cluster systems (GCSs) of 5 early type galaxies in the Fornax cluster: NGC 1374, NGC1379, NGC 1387, NGC 1427, and the central giant elliptical NGC 1399. ... See our papers ``The central region of the Fornax cluster - I. A catalog and photometric properties of galaxies in selected CCD fields'' and ``The central region of the Fornax cluster - II. ...

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• Properties of Young Massive Clusters | ESO
• Properties of Young Massive Clusters | ESO United States
• Properties of Young Massive Clusters | ESO Australia

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

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• articles_flera_en
• articles_alex_01

... A new study using AAT ?chelle spectroscopy and HST spectrophotometry has revised this value upwards to (Woolf & Jeffery 2000). Measuring for the PVTel variables poses considerable difficulties. ... In spite of these constraints, Jeffery et al. (2000) succeeded in obtaining nearly contiguous ultraviolet photometry and radial velocities ( ) of three PVTel variables. Analysis of the UV photometry provided measures of and . ... 2000). ...

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• PULSATION PROPERTIES
• Stars Beyond Maturity
• Spectrum

OptInt PmWiki : Pm Wiki / Security Variables . ... Present only when the in-built AuthUser username/password functionality is used). ... A switch to control whether or not changing a page's attributes causes any existing passwords to be forgotten. ... If set to zero, then session passwords are never saved (although any AuthUser authentications are still remembered). ... For AuthUser with LDAP authentication, this specifies the password used for binding (in conjunction with $AuthLDAPBindDN above). ...

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• DUST: silprops.h File Reference
• PPT Slide
• OptInt PmWiki : Security Variables

... This book explains how to use core and client-side JavaScript for version 1.3. JavaScript is Netscape's cross-platform, object-based scripting language for client and server applications. ... Core, Client-Side, and Server-Side JavaScript . ... Client-Side JavaScript . ... JavaScript and Java . ... Examples . ... Conditional Statements . ... Object Manipulation Statements . ... Defining Functions . ... Objects and Properties . ... Indexing Object Properties . ... Defining an Event Handler . ...

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• Objects, Methods, and Properties
• SWXCS
• A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope

... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

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• Mechanical Properties of Ribbed Plastic Sleeves
• lsst.tcc: python/tcc/base/wrapperTestCase.py Source File

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... Our BVR CCD photometric study of the globular cluster NGC 7006 permitted us to find two new suspected RR Lyrae variables. A cluster chart is presented with the position of known and suspected variables marked. ... According to the Catalogue of Variable Stars in Globular Clusters (Clement et al., 2001), it contains 76 variables, most of which are RR Lyrae variables, the RR1 to RR0 ratio being 8:55. ... for suspected and some of known variable stars. ...

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• Globular Cluster NGC 2419
• Астронет > Archive of Astronomical and Astrophysical Transactions
• Астронет > Globular Cluster NGC 2419

... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The double star Adhara, globular cluster NGC 2298, and Hubbleт??s Variable Nebula (NGC 2261) . January 30 February 6, 2014: The double star Adhara in Canis Major and globular cluster NGC 2298 in Puppis both offer small-telescope owners stunning views, while large-telescope owners can seek out Hubble's Variable Nebula (NGC 2261) in Monoceros. ... Small telescope : Globular cluster NGC 2298 . ...

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• How do astronomers use Cepheid variables to measure distances? | Astronomy.com
• New kind of variable star discovered | Astronomy.com
• variable stars | Astronomy.com

... A clear understanding of the 3D-structure of the nearby Virgo cluster and the knowledge of a precise cluster distance are key issues for many astronomical fields. ... From the scientific point of view the best choice for a study of the distance and 3D-structure of the Virgo cluster are the low-surface brightness dwarf elliptical (dE) galaxies. ... Secondly, the dwarf ellipticals are the only galaxies which exist in large numbers in the Virgo cluster core (Binggeli et al. ...

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• Philip Lah's Research
• Dougal Mackey - Research
• Cepheid Variables

... 853Ledlow+ J/AJ/109/853 VLA survey of Abell clusters. ... Ledlow+ 1995) ================================================================================ A 20 cm VLA survey of Abell clusters of galaxies. ... In this paper, we examine the radio detection statistics as a function of cluster morphological type, galaxy richness, and spatial location within the cluster galaxy distribution. ... This file table1a 137 511 Cluster radio survey (z ) 6- 7 A2 --- n_Abell *Abell number note 10- 15 F6.4 --- z []? ...

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• Signal detection
• JavaScript Guide
• THE TEXAS SURVEY: Optical identifications

A completely new possibility of Fortran 90 is recursion. Note that it requires that you give a new property RESULT for the output variable in the function declaration. ... Here follows two examples, first recursive calculation of the factorial, then recursive calculations of the Fibonacci-numbers. ... The listings of the routines follow, the output variables are called FAC_RESULT and FIBO_RESULT , respectively. ... Not only functions but also subroutines can be recursive. ...

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• Adding Variables to CONFIG.SYS
• Specifications
• Media types

... The exercises are now available on the web and in six booklets (100 pages in total), titled: . ... Exercise 1: Measuring the Distance to Supernova 1987A", . Exercise 2: The Distance to Messier 100 as Determined by Cepheid Variable Stars", . Exercise 3: Measuring the Distance to the Cat's Eye Nebula" and . Exercise 4: Measuring a Globular Star Cluster's Distance and Age". ... More exercises will follow in the future. ... Exercise 3 - Measuring the Distance to the Cat's Eye Nebula . ...

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• ASP: Star Science in the Autumn Sky

... Archives . ... arXiv:stat.ME:0910.2585] . Variable Selection and Updating In Model-Based Discriminant Analysis for High Dimensional Data with Food Authenticity Applications . ... Classifying or clustering (or semi supervised learning) spectra is a very challenging problem from collecting statistical-analysis-ready data to reducing the dimensionality without sacrificing complex information in each spectrum. ... Comment ( RSS ) | ... Chandra Blog . ... Entries (RSS) and Comments (RSS) . ...

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• The AstroStat Slog variable selection
• The AstroStat Slog clustering
• The AstroStat Slog globular cluster

Figure 1. ... Scattering geometry illustration. ... Maps of scattering angle in the cluster core for standard GCW grains and a Model A nebula (left) and UV-altered GCW grains in the same model (right). ... Degrees of consistency between the scattering angles of different models at different wavelengths. ... Schmidt scattering angles over a wider area. ... Schmidt line-of-sight separations over the same area, derived for two different simplified geometric models. ...

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• The Pleiades
• Heiles Symposium Presentations
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters