... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... PULSE@Parkes . ... The project does not assume any detailed prior knowledge of pulsar astronomy though students should have studied astronomy as a component of Stage 4 Science (Years 7-8). ...

... Read in a hires optical spectrum and mask out lines to be ignored ! ... a) just calculate a spectrum with fixed abundances ! ... c) Solve for all light elements abundances { 1 8.53 0.0 2 11.54 0.0 5 0.10 0.0 6 8.00 1.0 7 7.81 1.0 8 7.10 1.0 12 7.01 1.0 13 5.73 1.0 14 6.94 1.0 15 5.50 1.0 16 6.75 1.0 18 6.10 1.0 20 5.10 1.0 21 1.70 0.0 22 3.84 0.0 23 2.82 0.0 24 4.06 0.0 25 3.71 0.0 26 6.18 0.0 27 4.26 0.0 28 5.05 0.0 29 3.20 0.0 30 4.34 0.0 39 1.42 0.0 40 2.40 0.0 -1 0 0 } synth save end ...

... 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. ...

This document explains values, tables and other matters on solar physics computing pages. ... is040423.ete : SAHA-S tables, interpolation values: T, rho, X. Z is fixed at 0.02. See reference above. opal2005.etf : OPAL EOS, interpolation values: T, rho, X, Z. Downloaded from OPAL site , marked there as "2005", seems to be unpublished. opal2001.etf : OPAL EOS, interpolation values: T, rho, X, Z. Rogers F.J., Nayfonov A. Astrophys. ... The following values can be calculated: . ... dimensionless . ...

Computing dates when an LST is at night time . The program nighttime (written by Mike Nolan and available on AO computers - e.g., mofongo.naic.edu) computes the dates when a particular LST occurs at night time at Arecibo. ... The nighttime program prints out the word "Night" on the first date when the LSTs fall entirely at night, and "Day" on the first date when the LSTs sometimes cross into daytime. Rise/Set is defined to be when the center of the sun is 0.833 degrees below the horizon.) ...

function flux _to_em, emis , flux = flux , logT = logT , wvl = wvl ,Z=Z,NH=NH,defEM=defEM,$ noph=noph, thresh = thresh , _extra=e ;+ ;function flux _to_em ; return emission measures (-1 where undeterminable) at various ; temperatures consistent with given line fluxes and line emissivities. ; ; for each temperature, assume a delta-function emission measure, ; compute ...

Next: ASTROMET/EDIT Up: Available Commands Previous: Available Commands . This command computes the astrometric transformation parameters for the input data set using a least-square fitting algorithm. The input data is assumed to be two MIDAS tables with fixed columns names. ... ASTROMET/TRANSFORM only computes the transformation parameters. ... R_A Real column containing the right ascension in degrees; . ... XCEN Real column to contain the X measurement; . ...

Bruce Garrett joined the Institute as a Software Systems Engineer in the Engineering and Software Services Division/ Support Services Team on January 3, 2000. ... Joy Hale assumed the position of Senior Systems Administrator in the Computing and Information Services Division on January 3, 2000. ... Stefi Baum assumed the position of Head, Engineering and Software Services in the Engineering and Software Services Division on January 3, 2000. ... Submitted: 3/22/2000) ...

... 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...

... This will be done by fitting period-luminosity relations in the form V = a в log P + b to Cepheid variables in these two galaxies. ... 8 Marks 2. ... 3R x3 2 Marks (b) Use this expression for the pressure to show that when 1 is constant, the adiabatic wave equation for the star can be written as x d d 3 R3 2 3 [(x - x4 ) ] + [ x - (31 - 4)] = 0. dx dx 1 GM 2 Marks (c) Show that near x = 0, the solution to this equation is of the form = Ax , where A is a constant and 2 = 3 (31 - 4). ...

Astronomy Discussion Forums . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... SETI Assumes ET Doesnot Care About Can Being Detected What If . ... Post Message | ... My search on how to go undetected in space and SETI Search for Extraterrestrial Intelligence SETI. ... 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" . ...

... Spectral energy distributions (SEDs) for active galactic nuclei (AGN) are made publicly available by computing self-consistent 2-phase AGN torus models. ... Dust extends from the dust evaporation radius, typically located between pc/10 Heymann Siebenmorgen (2012). We consider fluffy dust particles ( Kr gel Siebenmorgen , 1994). ... As an example we show below the SEDs of an AGN computed with diffuse ISM dust ( Siebenmorgen et al 2014) and fluffy grains ( Kr gel Siebenmorgen 1994) . ...

... Bojan Nikolic web pages (r. 329) . ... Note however that the radiospec is built in the ?build? sub-directory of the directory you installed it to and is not installed ? ... Build radiospec wget http://www.mrao.cam.ac.uk/~bn204/soft/radiospec-1.0.tar.gz tar --strip-components = 1 -xzvf radiospec-1.0.tar.gz PATH = $INSTALLDIR/bin:$PATH scons PKG_CONFIG_PATH = $INSTALLDIR/lib/pkgconfig/ . ... You will at least also need the numpy package for Python . ... Download & building of the radiospec package . ...

Computer Ephemeris . ... Content of the Computer Ephemeris is the same as content of Soviet Astronomical Almanac (Ezhegodnik), but fully original algorithms and computer methods of calculations were used. Your requests for Computer Ephemeris for years before 2014 and your comments on its contents please direct to the author charlie@mail.univ.kiev.ua . ... Keywords: Computer Ephemerides, Computer Ephemeris, Computer Almanac, Computer Calendar. ...

... A1­RP­AD­98001 Issue : DRAFT Page 34 of 42 3.13 Power dissipation The nominal power dissipated through each coil is: RMS: 1 Watt PEAK: 9 Watt capacitive sensors air damping The nominal power dissipated by each crate is: RMS: 475 Watt PEAK: 570 Watt These figures are given by the following contributions: capsens boards ?? Watt control board ?? ... Watt 3.14 Mirror thermal control design The cooling system get input refrigerant some C below ambient temperature from the MMT plant. ...

... 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. ...

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

... Searching for Far Out and Wandering Worlds . ... The Real Reality Show: Would aliens be anything like us? ... The SETI Institute is after alien signals. Assuming another world is beaming a 1-million-watt radio signal in our direction, how far away can that source be before the signal is lost in intergalactic noise? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

XmTel ----- XmTel is a Motif-based telescope control program based on INDI, the Instrument-Neutral Distributed Interface. ... See the files LICENSE and COPYRIGHT for the details. ... About Epoch ----------- XmTel assumes that the telescope is set to "Epoch of Date", which means that it is using ideal celestial coordinates precisely aligned today. ... XmTel assumes that target coordinates entered from the keyboard are in the Epoch that the telescope coordinates are currently displayed in. ...

... Dr. Ravil Nazirov is the head of the workshop, and Andrew Ananjev is the secretary of the workshop. ... The workshop is used to be held in the last decade of the month, preferably on Tuesdays. ... The next session will take place October 29, 1996 . ... There is "CONPAS" mailing list which you can join to discuss issues of problem solving and to be automatically notified of important dates and decisions with respect to the coming sessions. ... Secretary of the Workshop: Andrew Ananjev . ...