IAU Commission 31 (Time) Circular 8, 4 April 2003 Dear colleagues, Here are some informations or events related to our Commission 1)Election of officers for the triennium 2003-2006 For 2003-2006, the present vice-president D.N. Matsakis will be president of Commission 31. ... 2)IAU GA and related deadlines The XXV IAU General Assembly takes place in Sydney, Australia, July 13-26 2003 (see http://www.astronomy2003.com). Please note the following deadlines: *30 April 2003: Early registration to GA. ...

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. ...

... New offset/filter box. A new filter/box is available. ... It is lighter, smaller and sturdier than the filter/clock and offset boxes used till now. ... The offset is stabilized to a few parts in a million. ... Notice that only positions 0-3 are meaningful, while values of 4 and above will leave the signal unfiltered. The box has one input BNC, and two output BNC: one outputs the signal with the same polarity as the input, the other reverses the signal (remember that FIRPO has negative output). ...

... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...

Radio data are displayed in the following format: . After the title with name of cluster under examination and with line about kind of data under one, e.g. Radio data [ optical data ] [ radio source identifications ] [ radio spectra (1.0 or 1.1) ] . ... The first line contains the number of radio sources associated with the cluster (these are just those sources with entries in sections 'Radio galaxy', 'Radio source' and 'Radio spectrum' below). ... Radio sources in cluster: 2 # . ...

This page contains information about the conference proceedings, a summary of the program speakers, and links to their presentations when available. ... Welcome, Opening Remarks Workshop Goals, AURA and Co-Chairs . ... Title: Building the Vision of the Future in Space Astronomy & Physics . ... Title: The Future of Optical Astronomy in ESA's Science Programme . ... Speaker: Martin Harwitt , Cornell University . ... Title: Stellar Populations Science in the Era Beyond Hubble and NGST . ... Speaker: Ph. ...

... GBT results . ... OOF Holography Home Page Quick Links: . ... This page contains the more recent measurements with our new OOF Holography system. ... The latest Out-Of-Focus data were taken with SCUBA on 11th February 2003. ... Aperture . ... Residuals . ... The results are summarised in the following plots: ~~available soon - see previous results page for now~~ . We have recently obtained some OOF data from the Green Bank Telescope operated by the NRAO in the US. the results are shown here. ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2007 > OPSWorkshop . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Back to top . ... Session 2: Search for planets: "Radial-velocity, adaptiveoptics, transit, micro-lensing results" versus "Search for Dwarf Planets, Trans-NeptunianObjects and Small Outer Solar System Bodies" . ... This 4-day meeting will be held in Chile, at the ESO-Chile headquarters in Santiago on March 5-8, 2007. ...

... Stellar Evolution . Nucleosynthesis in Stars . The Evolution of Star Clusters . JAVA Physics Lab . Alternative Energies Class . Steve Kevan's Physics 251 Class . ... Talk on Solid State Physics of CCD detectors . Talk on Cosmological Issues . ... Digital Spectra of Stars . NETexperts E-mail List . The Electronic Universe Project e-mail: nuts@moo.uoregon.edu ...

... Textbook: An Introduction to Modern Astrophysics , by Carroll & Ostlie (1996) . Topics: This course is concerned with the study of objects and phenomena in the extragalactic domain, up to and including the general structure of matter and the evolution of the universe. ... Chapter 22: The Milky Way Galaxy (optional) . Chapter 23: The Nature of Galaxies . ... Assignments & Reading Quizzes . ... Reading Quizzes: Reading assignments will be given prior to each topic being covered in lecture. ...

... Archives . ... It is the most popular tool for statisticians and a widely used software for statistical data analysis thanks to the fact that its source code is freely available and it is fairly easy to access from installation to theoretical application. ... The documentation menu on the website and each packages contain extensive documentations of how-to?s. Some large packages include demos so that following the scripts in a demo makes R learning easy. ... Chandra Blog . ... SAMSI AstroStat Prog. ...

Next: MASSES Up: EXTREME HELIUM STARS: PULSATION Previous: STELLAR PROPERTIES . ... Following main-sequence evolution, a red giant star in a close binary system may expand to fill its Roche lobe. ... Although Iben & Tutukov (1984) used this model to account for the EHes, the latter are not binaries (Jeffery et al. ... Final helium-shell flash in a post-AGB star. ... Accretion from the disk onto the surviving WD creates a star with a degenerate CO core and a helium envelope. ... Other models. ...

... Meta Index / Home Page / Output Files / Summary File specification from The proposal summary record follows the very last configuration record and contains a summary of the proposal information asssociated with the observation. ... Only the first line of the proposal summary record will be present in the slew summary file. ... Note . ... Mailing address Line 1 . ... Mailing address town/ city . ... Comment . ... A78 . ... EPIC MOS 1 priority . ... Identifies the record as a Proposal Summary Record. ...

Russian page . The 6th International Astronomy Olympiad will be organized on September 26 - October 3, 2001 in the scientific town of Nauchnyj, Republic of Crimea. ... Weather in Crimea . ... Those who were interested to get further information about the VI International Astronomy Olympiad (including official invitations for teams and observers: Ukrainian visa and visa support was necessary for citizens of some countries!) were welcome to contact Coordinating Council in English or Russian . ...

... Team . ... V.V.Sokolov "The gamma-ray bursts, core-collapse supernovae and global star forming rate at large redshifts" . ... I.V.Sokolov, A.S.Moskvitin, Eda Sonbas, O.V.Verkhodanov, O.P.Zhelenkova "A galaxy cluster in the GRB 021004 field" . ... The monitoring of GRB afterglows and the study of their host galaxies with the SAO RAS 6-m telescope from 1997". ... A.S.Moskvitin, T.A.Fatkhullin, V.V.Sokolov and V.N.Komarova, "Spectral and photometric monitoring of CCSNe at SAO RAS" . ...

Blackholes Forum Message . ... Big Flash Theory - Evolution . ... Shouldn't it be called the Big Flash Theory since nobody was around to hear it? ... Any my point is universe has to come from somewhere. Now the new theory is that black hole do let the matter out at some point. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... The information is submitted as the tables and is distributed on given years of the observation, each of that, according to an adopted classification, includes the information about six active basins of the World Ocean: · the Northwest Pacific; · the Northeast Pacific; · the Northern Atlantic; · the Northern Indian ocean; · the Southern Indian ocean; · the Southwest Pacific. ... Lat' is latitude in degrees (up to one tenth) of the geographical place of the disturbance's onset. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...

... In this Section we examine evolution of the number of binary X-ray sources in an arbitrary galaxy. ... However, the problem with its X-ray radiation spectrum remains unsolved because no objects of this type have been observed so far. ... The total X-ray luminosity from different types of objects is traced separately at any instant. First, we calculated the evolution of the X-ray luminosity   assuming a delta-function (instantaneous) shape for the star formation rate. ...

Peremennye Zvezdy", . ... Max . Min . ... USNO-A2.0 0525-03498176 . ... Comm. ... USNO-A2.0 0525-03518699 . ... USNO-A2.0 0525-03528829 . ... USNO-A2.0 0525-03533089 . ... USNO-A2.0 0525-03553393 . ... USNO-A2.0 0600-44453902 . ... USNO-A2.0 0600-44469023 . ... 0.0008 . ... 0.0007 . ... 0.0007 Min II =14 m .36. ... 0.0005 Min II =15 m .66. ... A close pair of two stars: USNO-A2.0 0525-03533089 and USNO-A2.0 0525-03533312. USNO-A2.0 0525-03533089 varies. ... Comparison star . ...