XMM­Newton CCF Release Note XMM­CCF­REL­no­number­assigned EPIC Spectral Response Distribution R. D. Saxton 27 Feb 2002 1 CCF components Name of CCF VALDATE CAL VERSION XSCS flag EMOS1 QUANTUMEF 0010.CCF 2000­01­01 NO EMOS2 QUANTUMEF 0010.CCF 2000­01­01 NO EPN QUANTUMEF 0010.CCF 2000­01­01 NO 2 Changes Four new extensions, FRACTION CHANNEL, FRACTION ENERGY, QE TOTAL and EBINS FRACTION have been added. ... EBINS FRACTION ENERGY: The energies used to define the QE TOTAL array. ...

... 1.1.2 Spectral Filters . 1.1.3 Quantum Efficiency and Exposure Limits . ... 1.2 Which Instrument to Use: WFPC2, ACS, NICMOS, or STIS? 1.2.1 Comparison of WFPC2 and ACS . 1.2.2 Comparison of WFPC2 and NICMOS . 1.2.3 Comparison of WFPC2 and STIS . ... WFPC2 . ... 1.6 What's New in Version 6.0 for Cycle 11 . ... 2.9 Calibration Channel . ... 3.3.3 LRF Photometric Calibration . ... 4.8.1 Sources of Dark Current . ... 8.10 Calibration Plan Summary . 8.11 Cycle 4 Calibration Plan . ...

Next: Geometric Corrections Up: Raw to Calibrated Previous: Artifacts . ... The majority of modern detectors (e.g. CCD, diode--array or image tube) have a nearly linear response while photographic emulsions are strongly non--linear. Even for the `linear' detectors, a number of corrections must be included in the intensity calibration. ... A mathematical function is used to transform data from detectors with non--linear response to a more linear domain. ...

... Posts tagged ?response matrix? ... A correct accounting of the spread of photons of course requires a full-fledged response matrix (RMF), but as it turns out, the line profiles can be fairly well approximated with Beta profiles, which are simply Lorentzians modified by taking them to the power ? ... Tags: beta profile , Chandra , EotW , Equation , Equation of the Week , Line Response Function , Lorentzian , LRF , point spread function , PSF , response matrix , RMF , XMM . ... Chandra Blog . ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

Bigbang Forum Message . ... Vacuum Energy Mediated By Supersymmetry . ... Since the existence of supersymmetry partner virtual particles seemingly solves the heirarchy problem, it follows that it must also solve the . vacuum energy problem. ... The Casmir force between two plates in vacuum is in a sense a measure of vacuum energy, and calculations using only non-symmetric virtual particles agree with experiment. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ...

... 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...

... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > The response curve leaves residual instrument features in my science. ... Observing Facilities . ... Observing with ESO Telescopes . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... ESO Science Newsletter . ... To can be avoided by flat-fielding the flux standard star spectrum with the same flat field as is used for the science data. ...

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. ...

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

... Apache HTTP Server Version 2.2 . ... Additional functionality allows webmasters to configure the response of Apache to some error or problem. ... If a script crashes and produces a "500 Server Error" response, then this response can be replaced with either some friendlier text or by a redirection to another URL (local or external). ... Custom Error Responses and Redirects . ... In addition to these new variables, Apache will define REDIRECT_URL and REDIRECT_STATUS to help the script trace its origin...

... Allows webmasters to configure the response of Apache to some error or problem. Customizable responses can be defined to be activated in the event of a server detected error or problem. e.g. if a script crashes and produces a "500 Server Error" response, then this response can be replaced with either some friendlier text or by a redirection to another URL (local or external). ... New behavior . ... redirect to a local URL, or . ... Each new variable will have the prefix REDIRECT_ . ...

... The predictive power of current models (the so-called meteor forecasting) has given us the exact timing of the Leonid storms of 2001 and 2002 to the nearest hour and are now used to predict the arrival times of major annual showers such as the Perseids . ... Towards this goal, the Observatory has installed a sky-monitoring system, consisting of one medium angle (MA) and two wide-angle (WA) video cameras linked to software designed to detect motion. ... Bright Taurid Meteor . ... Meteors on Mars . ...

... The International Year of Astronomy 2009 ended with a Blue Moon and a partial lunar eclipse, as the second Full Moon of December grazed the Earth's shadow on December 31st. ... The eerie Spitzer Space Telescope image shows infrared radiation from the well-studied Helix Nebula (NGC 7293) a mere 700 light-years away in the constellation Aquarius. ... Big, beautiful spiral galaxy M101 is one of the last entries in Charles Messier's famous catalog, but definitely not one of the least. ... December . ...

Gamma-rays from the GC . M.Chernyakova (DIAS), D.Malyshev (DIAS), F.Aharonian (DIAS, MPIK), R.M.Crocker(MPIK), D.I.Jones(MPIK) 1 10°x10° Count and TS maps (>300 GeV) Gamma-rays from the GC 2 TS maps of the GC at different energies 300 MeV ­ 3GeV 3 GeV ­ 30 GeV 30 GeV ­ 300 GeV Gamma-rays from the GC 3 4 Gamma-rays from the GC Lightcurve 5 Gamma-rays from the GC Source spectrum Model X-ray and low-energy emission come from the central object, probably SMBH accretion disk. ...

The 25th International Symposium on Space Terahertz Technology , 27 ­ 30 April 2014, Moscow, Russia Power Load Dependencies of Cold Electron Bolometer Optical Response at 350 GHz Mikhail A. Tarasov , Valerian S. Edelman , Andrey B. Ermakov , Sumedh H. Mahashabde , and Leonid S. Kuzmin . ... At high power load levels and low temperatures the changes of tunneling current, dynamic resistance and voltage response have been explained by non -thermal energy distribution of excited electrons. ...

... Flux density at 1 GHz (/Jy): 2720 . ... Optical: Fast knots and quasi-stationary flocculli, with many filaments at large radii, and NE `jet'. ... ADS . ... 1991, ApJ, 373, 146. ... NH 3 absorption and CO observations. ... 1995, ApJ, 440, 706. ... 1995, ApJ, 444, 244. gamma-ray observations. ... Anderson & Rudnick 1996, ApJ, 456, 234. ... 1999, ApJ, 518, 284. ... NRAO 12-m at 86 GHz (72": S=101?3.3 Jy) and 140 GHz (44": S=69.6?6.3 Jy), plus CO observations. ... 2001, ApJ, 547, L41. ...

... 11/09 - Dave's response . Some of you have probably seen this original letter floating around the internet. Read Dave's (whoever he is) response below. ... I don't know who David is, but his response is hilarious!! ... At first I rolled my eyes....then I read Dave's response and I couldn't have said it better if I had all day to do it." ... September 11th is the 254th day of the year: 2 + 5 + 4 = 11 . ... Wait a sec ... just realized "YOU CAN'T HIDE" also has 11 letters! ... Help me!! ...