System Throughput and SNR / Exposure Time Estimation . The presence of significant red leaks in the UV filters, together with the much greater sensitivity and wavelength coverage in the red part of the spectrum, can make UV observation and calibration difficult. ... The counts contributed by red leak can be a significant noise source, and must also be taken into account during SNR and exposure time estimation. ...

. July 14 . November 8 . Previous slide . Next slide . Back to first slide . View graphic version .

... Astrophysics Group . ... STFC announces бе119 million contribution to The Square Kilometre Array . ... SKA AAVS0 array . ... One of these is the Square Kilometre Array telescope . ... STFC has as well announced today a contribution of бе165 million to theб European Spallation Source and бе25 millionб to participate in the M3 Space Mission (PLATO).б  Speaking ahead of an event at Jodrell Bank Observatory Science Minister David Willetts announced the funding for the two projects. ...

GTK+ 2.0 Tutorial . Prev . Next . This document, like so much other great software out there, was created for free by volunteers. If you are at all knowledgeable about any aspect of GTK that does not already have documentation, please consider contributing to this document. If you do decide to contribute, please mail your text to Tony Gale, gale@gtk.org . Also, be aware that the entirety of this document is free, and any addition by you provide must also be free. ...

... In these pages we have collected contributions by fellow amateurs supernovae hunters. These contributions concern mainly the discoveries they made and their searching activity. ... External link) . The discovery of SN1997bp in NGC 4680 (from TA Magazine, vol34, n.397) - text and images. Visual Supernova Searching With The 40 inch Telescope at Siding Spring Observatory . ... A web page on SN1995G in NGC 1643 (external link to the South Australia Astronomical Society) - text and images. ...

Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders . ... Archives . ... People . ... To my personal thoughts, the history of astronomy is more interesting than the history of statistics. ... Quintessential Contributions: . ... The contents are only spanned about 100 years and there are great chances that my mind still favors the history of astronomy over the history of statistics. ... Comment ( RSS ) | ... Entries RSS . ... Chandra Blog . ...

... 30, 2006 . ... If you retrieve these files via a Web browser, please note that you need to use the browser's "Save As..." facility. ... Figures must be provided as Encapsulated PostScript files and should be incorporated in your contribution using the standard Latex2e "graphicx" package as demonstrated in the demo file author.tex. ... Please submit the LaTeX source file of your contribution, and PostScript/PDF files of any figures, via email (!!!) to Iris Bronnert ( ibronner@eso.org ). ...

Next: Armagh Observatory New TSN Up: New TSN Action Plan Previous: What We Do Contents . ... The Armagh Observatory seeks to strengthen this interest by promoting wider access to scientific knowledge amongst all sections of the community, and disseminating the results of its scientific research through a high-profile programme of education and public outreach. ... The Armagh Observatory is fully committed to implement the New TSN Policy. ...

... 172 ] Briefly, the count rate at the detector from a source at a redshift z is . ... Figure 55 shows the ``Green functions'' for the double compact binary merging rate   evolution assuming no collapse anisotropy. ... Another way that diverse peculiarities in the - distribution induced by the sources evolution could arise is connected with a possible non-monotonic character of the star formation rate in galaxies. ... 22 ] Figure  56 shows two-dimensional cuts through the parameter space. ...

... We have observed and studied critical supercurrents, Ic, in cross-type Nb-Cu/Ni-Nb junctions with Josephson layers prepared from diluted ferromagnetic alloys. For suitable values of the exchange energy in the ferromagnet and the F-layer thickness we have observed Ic(T) oscillation with vanishing Ic for the definite values of T and dF. ... Critical supercurrents, Ic, in Nb-Cu(1-x)Ni(x)-Nb Josephson SFS junctions with F-layers prepared from ferromagnetic Cu(1-x)Ni(x) alloys have been studied. ...

sw@newmail.ru THE PROBE LAYER METHOD IN THE CALCULATIONS OF CONTRIBUTION AND RESPONSE FUNCTIONS S.G.Mozharovsky Ussuriysk Astrophysical Observatory of FEB RAS, Ussuriysk, Russia sw@newmail.ru The method of probe layer for the calculation of response and contribution functions is discussed. ... This allows us to turn from the response functions to the contribution functions calculated with help of the probe layer (CFPL). ... V- VMAX . ... Solar Phys., v.136, p.239-250. ... Solar Phys., v.35, p.11-29. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Student list | ... Parkes radio telescope . ... As the Wildflowers project develops examples of student work from a range of activities will be posted here for you to view. One of the initial activities for partner schools is for students to design a logo for the project that encapsulates the themes of Wildflowers in the Sky . The contributions below are from students at Meekatharra School of the Air. б  . ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

... Proposing for VLBI Time at Arecibo . ... Documentation (Field System, VLBA4 terminal, Mark 5 system) . ... In 2001, the Arecibo Observatory received its hybrid VLBA-MARK IV (VLBA4) data acquisition system, and currently NAIC commits Arecibo to support VLBI observing up to a maximum of 4% of the 305-m's observing time. ... Tracking Time (h:mm) . ... The inclusion of the 305-m Arecibo radio telescope can dramatically boost the sensitivity of VLBI observations, even with its limited source tracking...

Past Amateur Achievement Award recipients . Nomination Guidelines . ... The Amateur Achievement Award of the ASP, given yearly since 1979, is designed to recognize significant contributions to astronomy or amateur astronomy by those not employed in the field of astronomy in a professional capacity. ... Letters of nomination should highlight how the nominee or nominees have distinguished themselves in this endeavor and/or cite exceptional achievement. ... The Award . ... Amateur Award Nominations . ...

... Tonight's Sky . ... Sky this Month . ... milky way . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Astronomy for Kids . ... Sky Events . Get to Know the Night Sky . ... Is there any way photons could contribute to the mysterious dark matter? ... Get instant access to subscriber content on Astronomy.com! ... 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. ...

Sponsors of Views of the Solar System . ... Unlike many of the sites on the Web, Views has been created from a budget of $0.00 and from the assistance from many individuals in the world who have made some significant contributions of time. ... Adobe Photoshop 4.0 . ... If you would like to be a sponsor of Views of the Solar System , our organization will consider placing a small logo of the sponsor as part of the menu bar that can be seen on the home page and on the image pages. ...

. 1st column is the rest wavelength in Angstroms, 2nd column is the flux, 3rd is the error estimate, 4th the number of spectra contributing at that wavelength, 5th-7th the mean, minimum and maximum redshifts of the contributing spectra. Composite Spectrum of the Blue PHFS sub-sample. Composite Spectrum of the Blue PHFS sub-sample. Composite Spectrum of the LBQS sub-sample. Equivalent widths of the Parkes Quasars. Equivalent widths of the LBQS QSOs. Last updated 13th July 2001. Maintainer: Paul Francis , .

... PGP keys . How it gets done . ... amead@soltec.net - massive editing (many, many corrections), also tried to teach me about the proper use of the apostrophe (when it comes to written language and grammar I am incredibly bad). ... If you wish to contribute written material, edits, or other work to the LASG please email me at seifried@seifried.org . ... So the LASG master copy is stored on my NT Server (which I use as a workstation), and maintained via FrontPage, but how does it get to you? ...

... He made observations of a supernova (literally: nova= "new star") in 1572 (we now know that a supernova is an exploding star, not a new star). ... Brahe's meticulous observations showed that the supernova did not change positions with respect to the other stars (no parallax). ... This was early evidence against the immutable nature of the heavens, although Brahe did not interpret the absence of parallax for stars correctly, as we discuss below. Brahe made careful observations of a comet in 1577. ...