... To be read in conjunction with Section 4.11 of the WFPC2 Instrument Handbook , -Version 4.0. ... 1 The second study found evidence that CTE loss for faint stars has increased with time (Whitmore, 1998). The primary observational consequence of CTE loss is that a point source at the top of the chip appears to be fainter than if observed at the bottom of the chip, due to the loss of electrons as the star is read out down the chip (see Figure 1 ). ... Last updated: 06/16/98 10:38:00 . ...

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• A Compact Instrument to Detect and Study Seismological Doppler Signals from
• Near Infrared Camera and Multi-Object Spectrometer Instrument Handbook for
• STIS Instrument Handbook

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Support . ... Become a Meade Dealer . ...

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• UHTC Coatings: Ultra High Transmission Coatings, Special Coatings, Telescopes,
• Meade Instruments - Telescopes, Solar Telescopes, Binoculars, Spotting Scopes
• Meade Instruments Corporation - Pictor Manual Part 16

... We have developed an integrated system that performs astronomical observations in Near Infrared bands operating two-dimensional instruments at the Italian National Infrared Facility's ARNICA and LONGSP . ... The user interface is organized as widget-based X11 client. ... 1993; Di Giacomo et al. 1993). ... Moreover, if the interprocess communication interface includes support for networking, the software immediately becomes network distributed software. ... DESQview/X User Guide 1993, Quarterdeck . ...

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• ADASS 2002 Conference Proceedings
• Calibration and Performance Control for the VLT Instrumentation
• Simulation of HST PSFs using Tiny Tim

... 2014 September 2 . Holometer: A Microscope into Space and Time . Image Credit: C. Hogan, Fermilab . Explanation: How different are space and time at very small scales? ... Although the discovery of holographic noise would surely be groundbreaking, the dependence of such noise on a specific laboratory length scale would surprise some spacetime enthusiasts. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . NASA Web Privacy Policy and Important Notices . ...

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• SAI Supernova catalog
• GIMP Effect: Tiles
• APOD: 2014 July 23 - IC 4603: Reflection Nebula in Ophiuchius

... SciSim release covered by this note . ... Data-Analysis-with-SAS in a simple and standardised way, and should allow calibration experts to re-assess the reliability of the different elements of XMM-Newton simulations. ... Also, a release of all calibration files to be used in the reduction, through the SAS, of SciSim generated data, is coordinated with this release. ... Furthermore, two SAS tasks (odffix and epicproc) had to be updated to make possible a proper SAS data reduction of simulated data. ...

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• XMM-Newton SAS: Watchout Page
• Introduction
• Purpose

Since the light from galaxies represents the integrated contribution of its consitutient stars, then we can learn about stellar populations in galaxies by modelling their light by summing up individual stellar spectra for different kinds of stars. ... The data cover the wavelength range 3500 - 9000 angstroms. ... Retrieve Digital Stellar Spectra Click on the appropriate spectral type. ... Note that the designation V means main sequence, IV means subgiants, III means giants, I means supergiant. ...

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• Astronomy HyperText Book: Stellar Clusters
• Astronomy HyperText Book: Stellar Evolution
• Astronomy HyperText Book: Fusion Sequences in Stars

... thesis: "Problems of Theory of Non-Equilibrium Processes in Superconducting Structures" . ... Волков А. Ф., Зайцев А. В., О несимметрии распределения квазичастиц в сверхпроводниках и нормальных металлах, ЖЭТФ, 69 , 2223-2230 (1975) [Sov. Phys. JETP, 42 , 1130-1134 (1976)]. ... Артеменко С. Н., Волков А. Ф., Зайцев А. В., Эффекта Джозефсона и коллективные колебания в тонкопленочных сверхпроводящих мостиках, Письма в ЖЭТФ, 27 , 122-125 (1978) [JETP Letters, 27 , No.3, (1978)]. ...

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• Philippe V. Komissinski
• Atmospheric influence on the different radioengineering systems functioning.
• Gennady A. Ovsyannikov

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2007 > cal07 . ... Observing with ESO Telescopes . ... Data Pipelines and Calibrations . ... Feb 06, 2007: Cal07 Posters available . ... Now in 2006, after seven years of science operation with the innovative, complex, and still growing instrumentation suite at the VLT, it is timely to review the achievements and limitations of the established instrument calibration plans together with the ESO user community. ...

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• PAM Bulletin
• ESO - Gasgano
• .dfosrc for phoenix

Herschel Guaranteed-Time Key Projects . at Arcetri . ... Both regard spectroscopic observations of different classes of star-forming regions in the Galaxy. WISH: WATER IN STAR-FORMING REGIONS WITH HERSCHEL . ... HS3F: HERSCHEL SPECTRAL SURVEYS OF STAR FORMATION REGIONS . ... Since gas cools mostly by line emission, knowing what molecules are formed and which lines are emitted in the different regions at different times is mandatory to understand the gas thermal balance. ...

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• IBIS: Technical Description
• Electronics and Software
• Lunar Occultation Group at AAO

Holometer: A Microscope into Space and Time . ... The instrument seeks to determine if slight but simultaneous jiggles of a mirror in two directions expose a fundamental type of holographic noise that always exceeds a minimum amount. ... Although the discovery of holographic noise would surely be groundbreaking, the dependence of such noise on a specific laboratory length scale would surprise some spacetime enthusiasts. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

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• Holometer: A Microscope into Space and Time
• XWare > APOD
• Iridescent Cloud Edge Over Colorado

... Figure: A dark current CCD exposure with cosmic ray events which are removed with non--linear filters. ... Figure shows a CCD dark current exposure with cosmic ray events. ... Figure: Removal of cosmic ray events on a CCD spectral exposure with different techniques: (A) original, (B) median filter, (C) recursive filter and (D) stack comparison. ... For comparison with non--linear filter techniques, Figure D shows removal of cosmic ray events from the spectral frame discussed above. ...

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• Filter descriptors
• Instrument file
• Princeton Instruments' Company Profile

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Facilities . ATNF facilities . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

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• Antenna gain considerations and flux calibration

... 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 . ...

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• TUI:Instruments:Expose Window
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• Measurements of 3.5-m Secondary Mirror Motions

... Krupp et al., etc ELW-2009 Space Research Institute Jupiter specifics weak solar wind: strong magnetic field fast rotation: Io outflow: internal effects dominate powerful energizing environment strong outflow of cold heavy ions Space Research Institute ELW-2009 rotating magnetosphere electric potential of rotation at Jupiter is 400 MV, solar wind only 1 MV at Earth both are ~ 100 kV Europa location ...

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• Onboard data collecting system (STS)
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• FAQ: "Exploration of the Earth's Magnetosphere"

A very important stage in a story of formation of any new science is the shift from discussion of situation which are possible but do not occur in practice due to some reason to recognition of real phenomena of interest. ... We suggest to consider computer viruses as this new specific form of life which is coming in the contact with our form of life. ... Computer life has been created by human being, the role of independent evolution of computer viruses seems to be still negligible. ...

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• Data bases of Natural Satellites. Documentation. Structure

АНОНС НАУЧНЫХ КОНФЕРЕНЦИЙ 1998-99 гг. ... An AAS Electronic Announcement Dear Colleague: NASA has approved development of a Wide Field Camera 3 (WFC3) for installation in the HST on the 2002 Servicing Mission. A Scientific Oversight Committee (SOC) is being established to ensure that the broad interests of the scientific community are represented in the development of WFC3. The primary task of the SOC will be to advise the HST Project and STScI in all areas of scientific performance of WFC3. ...

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... Early studies of PMS stars focused on T associations, especially Taurus-Auriga. However, one might expect low mass star formation to be different in OB associations. ... He identified Orion OB1a as the stars northwest of the belt. Orion OB1b is composed of the stars near the belt, including the belt stars and Orionis. ... He finds no perceptible distance change within the Orion OB1b association and finds the distance modulus to be 7.8 and 7.9 for Orion OB1a and OB1b respectively. ...

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• The AstroStat Slog Blog Archive [ArXiv] Correlation Studies, June 12, 2007
• Designing an Electronic Classroom
• Special Session on AstroStatistics at HEAD 2013

... 1) The MS lower envelopes for groups of stars with different metallicities turn out to be coincident. ... 4) The conformation of the kinematics of stars within narrow ranges ob b-y with the ages derived from isohrones reveals that, at Z < Z , the isohrone ages seem to be increasingly overestimated with growing b-y . ... At a given metallicity, they have a much narrower MS and the locus of their MS lower envelope seems to be brighter for the metal-rich group of stars. ...

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• Scientific Directions Achievements

My research interests are focussed on the theory and modelling of accretion processes as well as star and planet formation mechanisms. I am particularly interested in the stability properties of accretion discs, the generation of MHD turbulence and associated angular momentum transport, disk - planet interactions and the origin and characteristics of jets and winds from accreting systems . ... These results have been published in Salmeron & Wardle, 2005, M.N.R.A.S., 361: 45-69. ...

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• Research Interests
• Software Maintenance Manual
• GSAOI Latest Developments Page

Observation and modelling of main sequence star chromospheres. ... We compare our calculations to recent high res­ olution observations for selected stars in a narrow spectral range ((R­I) џ =0.875\Sigma0.05); we show that Hff line profiles behave as expected, with a tight correlation be­ tween the line width and equivalent width. ... We show that the hydrogen series dominate the radiative cooling in the spectral lines (form 40% to 90%) for Hff emission line stars. ...

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• http://star.arm.ac.uk/~ath/music/td/interviews/schmoelling.html
• http://star.arm.ac.uk/~ath/music/td/articles/article_emm84.html
• Education and Public Outreach