... We present a computer program for modelling energy flux distribution and light curves of eclipsing binaries from far ultraviolet to infrared regions. The Roche model is assumed. Proximity effects of components (reflection of radiation and surface gravity darkening) are taken into account. ... Figure 1: The surface temperature distribution for Algol A-B system before (upper plot) and after (lower plot) correction for temperature due to the irradiation effect. ...

... Harald Ebeling, University of Hawaii . A Snapshot Survey of The Most Massive Clusters of Galaxies . Abstract . ... Stephan McCandliss, The Johns Hopkins University . ... HST Imaging of UV emission in Quiescent Early-type Galaxies . ... Distances to Eclipsing M Dwarf Binaries . ... SL2S: The Strong Lensing Legacy Survey . ... Hubble Investigation of Asteroid 21 Lutetia in Support of the Rosetta Mission Flyby . ... GO 11289: SL2S - The Strong Lensing Legacy Survey . ... Past weeks: . ...

An investigation of the spectral energy distribution (SED) of the compact steep-spectrum (CSS) source and possible radio-loud narrow-line Seyfert 1 galaxy (NLS1), PKS 2004-447, is presented. ... Analysis of a non-contemporaneous, low-resolution optical spectrum suggests that the narrow-line region (NLR) is much more reddened than the X-ray emitting region suggesting that the gas-to-dust ratio in PKS 2004-447 may be very different than in our own Galaxy. ...

INTEGRAL observations of SS433 : new results Anatol Cherepashchuk Sternberg Astronomical Institute, Moscow University, Russia In collaboration with: Rashid Sunyaev ... Eleonora Antokhina, Nikolai Shakura, Darja Kosenko, Elena Seifina,Sergey Molkov (IKI) 1 Overview · Introduction · · · · Observations Analysis of hard X-ray spectra Analysis of hard X-ray eclipses Discussion and conclusions December 26, 2007 ...

EPIC MOS response Steve Sembay, R.D. Saxton 10 December 2004 1 CCF components Name of CCF VALDATE EVALDATE Blocks changed XSCS ag EMOS1 REDIST 0043.CCF 1999-12-10 2000-07-15 CCD REDISTRIBUTION-n NO EMOS1 REDIST 0044.CCF 2000-07-15 2000-11-09 CCD REDISTRIBUTION-n NO EMOS1 REDIST 0045.CCF 2000-11-09 2001-04-18 CCD REDISTRIBUTION-n NO EMOS1 REDIST 0046.CCF 2001-04-18 2001-08-18 CCD ... This release contains a new set of CCFs which enable rmfgen to generate the correct rmfs. ...

... Because binary X-ray sources are strong emitters over a broad range of the electromagnetic spectrum, with each part of the spectrum contributing distinct and often time-variable information, attempts to understand these systems by concentrating on information from a limited wavelength range may lead to contradictory and misleading conclusions. ...

... Proximity e#ects of com­ ponents (reflection of radiation and surface gravity darkening) are taken into account. ... As an example, we consider the Algol (# Persei) system, where an eclipsing pair (Algol A­B) is accompanied by the third component (Algol C). ... The surface temperature distribution for Algol A­B system before (upper plot) and after (lower plot) correction for temperature due to the irradiation e#ect. ... We solve this equation by the iterative Newton­Raphson method. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

... It's life Jim, but not as we know it - Tuesday 2 December 2008 . ... God and the Universe: Thursday 20 November 2008 . John O'Neill will give a lecture to the IAS in Dunsink Observatory, Castleknock, Dublin, on Monday 1st, at 8 p.m. Entitled "Wonderful Eclipses: The Greatest Saros", it will look at some of the best total solar eclipses to be seen. Monday, 1 December 2008 12:42 . International Year of Astronomy, Ireland National Node . ...

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing with ESO Telescopes . ... Phase 1 Proposals . ... Data Handling and Products . ... Science Data Products Forum . ... Science Announcements . ... Published: 19 Dec 2014 . ... The allocation of ESO telescope time for Period 95 is expected to be emailed on 22 December 2014. ... The ESO GOODS advanced data products are now available via the Science Data Product query forms of the ESO Archive Facility ....

... 2014: . Suppression of cooling by strong magnetic fields in white dwarf stars . ... 69, 439, 2014. Evidence of supercritical accretion in SS433 . ... We discovered a flat portion (white noise) in the power spectrum of SS433 due to an abrupt increase of the disk thickness in the supercritical region. ... Both the hard X-ray radiation and the visual light are seen reflected from the walls of the funnel that forms in the wind of the supercritical disk of SS433. ... Archive . ...

Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

... 2011 December 9 . Eclipsed Moon in the Morning . ... Explanation: Tomorrow, December 10 , the Full Moon will slide through planet Earth's shadow in a total lunar eclipse . ... In central and western North America the earlier phases of the eclipse will be in progress as the Moon sets . In fact, while those in the east will miss out, North Americans far enough west could see a scene very much like this one, with a mostly eclipsed Moon low and near the western horizon during morning twilght. ...

Next: Analysis in the Up: MIDAS utilities for Previous: Fourier analysis . For the detection of smooth signals, e.g. sinusoids, use either SCARGLE/TSA or AOV/TSA with bins. ... SCARGLE/TSA -- . Scargle sine model: This command computes Scargle's (1982) periodogram for unevenly spaced observations x . ... In this way, the command can be used to perform a CLEAN-like analysis manually by removing individual oscillations one by one in the time domain (see Roberts et al. ... AOV/TSA -- . ...

... Tonight's Sky . ... Moon . ... Observing . ... Astronomy for Kids . ... Total lunar eclipse, December 21, 2010 . The first total eclipse of the Moon in nearly 3 years occurs the night of December 20/21. ... The totally eclipsed Moon December 20/21 lies in Taurus the Bull, near its order with Orion and Gemini. ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... The highlight of the month is the total eclipse of the Moon during the night of December 20/21. ... Listed below are some of the key events, and the times they will occur, during December's total lunar eclipse. ... The eclipse is also visible in its entirety from Alaska (local time is UT тАУ 9 hours) and Hawaii (UT тАУ 10 hours), but be aware that most of the eclipse occurs on the 20th in these two regions. ... Penumbral Eclipse Begins . ... Partial Eclipse Begins . ... Total Eclipse Begins . ...

... One of the most widely used tools of Fourier analysis is the Parseval theorem. It enables the experimentalist to view how the `energy' in the signal is distributed among frequencies. The Fast Fourier Transform (FFT) algorithms have made power spectra one of the obvious diagnostics tools during data acquisition, and energy maps are a versatile alternative. ... The result is an energy map (Fig. 9), showing the distribution of energy corresponding to the wavelet map (Fig. ...

... In a meeting in California two weeks ago, unpublished results were presented indicating that most of the energy in our universe is not in stars or galaxies but is tied to space itself. ... A Sky Full Of Hydrogen . ... Interstellar space is filled with extremely tenuous clouds of gas which are mostly Hydrogen. ... The orange dot in the above false-color drawing represents the current location of the Sun among local gas clouds in the spiral Milky Way Galaxy. ... M104: The Sombrero Galaxy . ...

... CV & PUBLICATIONS | ... Nicholls, DC, Dopita, MA, Sutherland, RS, Jerjen, H, & Kewley, LJ " Metal-poor Dwarf Galaxies in the SIGRID Galaxy Sample. ... Nicholls DC, Jerjen, H, Dopita MA, & Basurah, H. (2014) " Nebular Metallicities in Two Isolated Local Void Dwarf Galaxies ", Astrophysical Journal 780, 88 * . ... Sweet SM, Drinkwater MJ, Meurer G, Bekki K, Dopita MA, Kilborn V, & Nicholls DC, " CHOIRS H I Galaxy Groups: The Metallicity of Dwarf Galaxies" , (2014) Astrophysical Journal , 782, 35 * . ...

Published in the 2 nd announcement . The X Asian-Pacific will be organised on November 24 - December 2 , 2014 . ... Tuesday, November 25 City Irkutsk excursion . ... Thursday, November 27 Listvyanka excursion . ... Friday, November 28 Excursion . ... Sunday, November 30 Excursion . ... LOC e-mail: S Y a z e v [a] g m a i l . ... The official APAO e-mail: a p a o [a] l i s t . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ...