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... Geoffrey Bicknell . Following are my lecture notes more or less in the order that I give them, together with exercises and relevant papers and images. ... Lectures and tutorial Monday 09:30 Lecture - Duffield Lecture Theatre . Tuesday 11:00 Lecture - Duffield Lecture Theatre . Wednesday 09:30 Lecture - Duffield Lecture Theatre . ... Lecture notes: . Overview of High Energy Astrophysics . ... Questions 1-4; due 27 Feb . Questions 5-8; due 6 March . ... Figure 1 for above paper . ...

. XMM-Newton Science Analysis System . eregionanalyse (especget-1.27.7) [???] . Meta Index / Home Page / Description / Output The fraction of counts contained within the source region assuming a point source located at the centre of the region. The EXTENDED mode (King profile) PSF is used to calculate the fraction assuming a fixed photon energy of 1.5 keV. This is currently only implemented for circular source regions, other shapes will give the wrong factor. XMM-Newton SOC/SSC -- 2008-10-24

... These correspond to 11 pm and 5 am, local time (either PST or PDT) ; ; USAGE: ; suntimes,jd,rise,set, [/date, /lst] ; ; INPUTS: ; KEYWORDS: ; OUTPUTS: ; ; BUGS: ; Not daylight savings time aware. ... PRO lasertimes,laserstart,laserstop,today=today,date=date,lst=uselst gmt_offset_days = gmt_offsec()/84600. gmt_offset_hours = gmt_offsec()/3600. if ~(keyword_set(jd)) and ~(keyword_set(date)) then today=1 if keyword_set(today) then begin ; julday by itself doesn't know about time zones. ...

PHYSICS Part IA Wednesday 19 January 2009 SELWYN COLLEGE REVISION TEST Attempt all three questions from section A and any two from section B. SECTION A ­ answer all questions. ... 5] A2 A3 SECTION B ­ answer two questions B4. ... 5] A uniform solid cylinder rolls from rest without slipping down a rough inclined plane, then along a horizontal section where the surface texture changes from rough to smooth, and finally up a second inclined plane with a perfectly-smooth surface. ...

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. ...

... NOTE: Be careful to always keep SP at the bottom of the ; stack in case an interrupt occurs during this sequence.] ; ; di = new SP ; mov si,sp ; si = old sp mov sp,di ; sp = final value jcxz done ; no moves needed if 0 temps mov cx,ss ; es = ss mov es,cx movs word ptr es:[di], word ptr ss:[si] ; move saved di movs word ptr es:[di], word ptr ss:[si] ; move saved si movs word ptr es:[di], word ...

Astronomy Discussion Forums . ... Let Me Be More Clear . ... Post Message | ... However, if I have identified it, how do I know this 'thing' is something that exists versus only thought of as existing? ... However, by me identifying 'red' as 1 (i.e., as I originally did), I am assuming that there is 'red' as something that exists. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 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. ...

... 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...

... Материал: универсальный ; . ... Цвет: свинцово-серый . Бермуды . ... Характеристики: Материал: алюминий с антипригарным титано-керамическим покрытием;Диаметр: 24 см;Объем: 4,0 л;Вес: 2,33 кг. ... Цвет: серый . ... Игровые наборы для мальчиков . ... Цвет: Белый . ... Цвет плафонов и подвесок: белый . Цвет арматуры: золото . Тип поверхности плафонов и подвесок: матовый . ... Материал плафонов и подвесок: стекло . Материал арматуры: металл . ... Количество плафонов: 2 . ...

Sloan Digital Sky Survey Telescope Technical Note 19970527 Walter Siegmund . ... Pointing Error Budget . ... The interleaved strips and adjacent stripes overlap about 1 arc minute. ... However, a 2-D pointing accuracy of 3 arc seconds RMS leads to acceptibly uniform overlap and minimises the number of cases that require special handling (Table 3). ... A guide fiber bundle diameter of 16.5 arc seconds and a pointing accuracy of 3 arc sec RMS results in 99% initial success in acquiring guide stars. ...

... If for some reason you want to stop a SM session for later resumption, and simply suspending the process, `^Z', is not sufficient, (for instance the machine is going down), then the SAVE command will write a file containing all your currently defined macros, variables, and vectors, along with your current history buffer as the macro all . ... This can be avoided with the MACRO DELETE filename command, e.g. MACRO DELETE utils SAVE 1 1 1 MACRO READ utils . ...

... The key areas covered are as follows: Interest Rate Risk - Loans & Investments Counterparty Risk - Investments Funding Risk - Savings Funding Concentrations - Savings Lending concentration risk and large lending exposures are covered in our Loans Policy. Interest Rate Risk A rough breakdown of our Balance Sheet assets is as follows: Loans to Members 33% Deposits & Investments 63% Other Assets 4% The first two categories give rise to a potential interest rate risk. ...

Next: Feature enhancement: filtering Up: No Title Previous: Commentary . A sharp contrast is seen between the `crowded' energy map of the modulated oscillations (individual minima and maxima of the signal identified by the Mexican hat wavelet) in section 13 and and the `smooth' presentation of the norm-Morlet transforms of the same data in section 15. ... construct an energy map based on individual events. smooth the map by merging the events that are `close enough' to each other. ...

Next: *upspecrdf, downspecrdf* - Transform Up: Spectral Analysis Previous: *grid_plot* - Plot Results . The conversion of count rate to flux depends on the intrinsic spectrum of the source, so xflux must be used in conjunction with fit . Fit generates a table of the best fit intrinsic spectrum ( _int.tab extension). xflux uses this table to calculate either the integrated flux between two energy limits or the flux density at a specific energy. ... This produces ``..._obs.tab'' file. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

An interesting thing about the final speed of an object descending (with no friction) from some given height h , along a sloping surface: one can change the slope, one can even change the shape of the surface--yet the final speed v with which it reaches the bottom will always be the same. ... Heat . ... Electric . ... Like currencies, different kinds of energy have a certain exchange rate: in the exchange between kinetic or potential energy and heat, for instance, one calorie equals about 4.18 joules. ...

... A Hubble diagram for Quasars . ... The potential use of such relation as a cosmological probe is obvious: assuming no redshift evolution of the relation, the observed X-ray flux is a function of the observed UV flux, the redshift, and the parameters of the adopted cosmological model. ... In this framework, Guido Risaliti and Elisabeta Lusso (INAF-Arcetri Observatory) have recently published in the Astropysical Journal the first Hubble Diagram for quasars suitable for cosmological measurements . ...

Next: Catalog Construction Up: Observations and Analysis Previous: Source Detections . ... It was assumed that the highest signal gives the most likely position of the source. ... Comparing the summed map with the maps from the individual energy ranges, the one which produced the smallest error box was chosen to represent the source position, as long as was greater than 4, a level chosen to reflect a reasonable degree of confidence in the detection. ...