... Imaging Modes: Basic 2-D Reduction 4 Imaging Modes z CCD Modes y _raw э _flt э _crj(temp) files: subtracts bias level and rejects cosmic rays. y э _crj: subtracts bias image and dark current (including the hotpixel contributions, depending on when the pipeline is run), and corrects for the low and high order sensitivity variation. y Dithered images are not combined through the pipeline. Imaging Modes z CCD Mode Raw Image 1 CR-rejected image Raw Image 2 Sahu et al. ... Sahu, K.C., STIS ISR 99-01 15 ...

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• Phase I: FUV Internal/External Wavelength Scale Monitor
• Phase I: NUV Internal/External Wavlength Scale Monitor
• STIS Data Handbook

... Data Handling and Products > Data Reduction FAQ > The spectrum of my MOS flux standard star is shifted in wavelength by several pixels. Why is that and how can I correct for it? ... Observing with ESO Telescopes . ... The shift of the flux standard spectrum is caused by a combination of bad centering within the slit and possible wavelength calibration issues. To align the spectrum to the tabulated flux, use the parameter --resp_shift in vmmosscience when determining the response curve. ...

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• ESO - I prefer to subtract the sky with external routines (i.e. in thecase of

... The first ultraviolet average spectrum of z=2.4 quasars . ... A team of astronomers led by Elisabeta Lusso (INAF-Arcetri Observatory) has recently published the first average spectrum of high-redshift quasars in the rest-frame wavelength range 600-2500 У? corrected for intervening HI Lyman forest and continuum absorption with state-of the-art IGM transmission functions calibrated to the most recent observations. ... The first ultraviolet quasar stacked spectrum at z=2.4 from WFC3 т??, ...

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• Visitors, external consultants
• suexec - Switch user before executing external programs - Apache HTTP Server
• IBIS - Flat Fielding

... 172, Astronomical Data Analysis Software and Systems VIII, eds. D. M. Mehringer, R. L. Plante, & D. A. Roberts (San Francisco: ASP), 395 . ... We have investigated the internal zero-points of the HST's Faint object spectrograph (FOS) on-orbit wavelength calibration between 1990 (launch) and 1997 (de-commissioning). ... For BLUE systematic shifts of the zero-points are present, which amount to a maximum offset of 7 pixels (1.75 diodes) over the entire period. ...

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• RVSAO 2.0 - A Radial Velocity Package for IRAF
• ADASS 2002 Conference Proceedings
• Modeling Scattered Light in the HST Faint Object Spectrograph

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Information & tools for observers . ... IDL [external link] | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... What is a pulsar? ... Group . ... Parkes Pulsar Observing Wiki . Parkes Observing Schedule . Pulsar Observing . Observing at Parkes . ... Pulsar Groups . ... Main / . ...

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• Creation and operation of the MSSP
• Australia Telescope National Facility
• Background Material for the Phase Correction Project

... Meta Index / Home Page / Usage and Examples Here is an example illustrating how to pass an externally-created detector map (section 5.3.2 ) to the task: . ... Generates a dataset ancillaryfile.ds , weighting the arf spatially using the first array found in the dataset detmap.ds . ... An ARF for an extended source is generated. ... destruct=false withfilteredset=true . ... withxranges=true ximagemin=-1500 ximagemax=1500 withyranges=true . yimagemin=-1500 yimagemax=1500 imagebinning='imageSize' . ...

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• External GTIs

... Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looking at an approaching source see light that is shifted to shorter wavelength (a blueshift). ... By measuring the amount of the shift to the red, we can determine that the bright galaxy is moving away at 3,000 km/sec, which is 1 percent of the speed of light, because its lines are shifted in wavelength by 1 percent to the red. ... Part 2...

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• echelle
• Getting the Dispersion Solution
• General Description

... The spectral analysis system xspec , which is part of the XANADU software originally written for analysis of EXOSAT data, provides a larger variety of spectral models than those supported in PROS. PROS format spectral data can be input into xspec using the XANADU program proscon . Users should note that for spectral data generated in PROS 2.3 or later, the PROS program downspecrdf must be run to generate the input file to proscon . ...

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• *qpspec* - Time Resolved Spectral Fitting
• Home Page for SAOimage: The Next Generation

... In Spiral . Between spiral . ... Center of vortices . ... to density exterema . ...

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• externals.h
• Atlas and list of identified lines
• Observational data and reduction

Potassium Doppler-Resonance Lidar . ... The diode laser is frequency modulated by a dual-pass acousto- optic modulation setup developed by the lidar group at Colorado State University in order to get the spectral information necessary to measure potassium temperature in the mesopause. ... The laser output is wavelength locked using a pulsed wavemeter and software developed at the Arecibo Observatory in order to feed back to the dye laser's rotating grating. ... Back to the Lidar Home Page . ...

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• Lidar National Astronomy and Ionosphere Center (Arecibo Observatory)
• Incoherent scatter

. Search this album . Gallery . :: Astronomy Pictures . :: Images from external telescopes . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . Title: Images from external telescopes . Description: Images acquired by RSAA astronomers using external telescopes NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. NGC 1512 and NGC 1510 . Views: 1139 . Powered by Gallery 3.0.9 (Chartres) . Login

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• Siding Spring Observatory's Anglo Australian Telescope (external)
• Siding Spring Observatory's 40 inch telescope (external shot with mountains)
• Gemini NIFS October 2002 Second Cool Down.

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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• VISTA Exposure Time Calculator Help v1.0
• VISTA - Visible and Infrared Survey Telescope for Astronomy

This WWW form allows the user simplified access to images produced by the NRAO/VLA Sky Survey (NVSS). This service determines which NVSS image is desired based on a celestial position and returns either the image directly or a Web page with a link to the file. ... The NVSS Postage stamp (small FITS file) server can be used to obtain images with other geometries.) ... Web browsers use external viewers to display files like FITS images which they do not understand. ...

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• VLSS Postage Stamp Server Documentation Help for VLSS Postage Stamp Server
• Relic radiolines of hydrogen at decimeter and meter wavelength band
• A 215 to 265 GHz spectral line survey of the Sgr B2 molecular cloud

. Language [RU/EN] Search: . Home . UP . Research . Projects . Services . Info . News . Events . Personal . Archive . External sounding . Method description . Basic principles . Data . Main results . Conference 2009 . Conference 2011 . Publications . Kонтакты . N.V. Pushkov . 09/04/2016 23:38 MSK . webmaster@izmiran.ru . (C) 2007, IZMIRAN

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... There are two main tasks in the package, XCSAO and EMSAO. XCSAO cross­correlates the Fourier transform of an object's spectrum against the transforms of a set of template spectra with known spectral shifts to obtain a velocity and error. EMSAO finds emission lines in a spectrum and computes the observed centers, getting individual shifts and errors for each line as well as a single velocity combining all of the lines. ... It combines spectra, shifting them to a common redshift. ...

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• ST-ECF Grism Spectrum Software for NICMOS Grism Data
• SLITLESS (Oct97) --- ST_ECF --- SLITLESS (Oct97)

. About the beginning of 1996 I've started to collect our daily statistics. At this time we had about 30 percents load of 115Kbps line, and the life for users was quite comfortable. Based on Feb - May data the line overload had been predicted for the end of summer 1996. This prediction occured rather precise. Our link is operated over 4-wire leased line (about 5 km) and Zelax M-115 modems. The modems were found very stable and reliable.

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• Contributions
• APOD: 2013 November 15 - The Flash Spectrum of the Sun
• APOD: 2016 March 12 - The Flash Spectrum of the Sun

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

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... It can · · obtain ice sample from 20 cm or deeper surface layer, then melt it and extract biomass from the ice surface water by filtration; Laser TOF MS for the measurements of element composition of the biomass; Gas TOF MS for the detection of: 1) volatile components, generated at the heating of biomass sample (closed window mode); 2) secondary ions , emitted from ice matrix by the influence of energetic magnetosphere ... Spectrum of yeast sample. ... Laser TOF MS 6. ...

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• http://www.iki.rssi.ru/conf/mss09/MSS-09_files/pap-eng-2.doc
• Shift
• Magnetic mapping file description

... Before the modern era of technological astronomy, to know anything about the Universe beyond our planet we relied on light. ... Historically the two rival ideas were that light was either a stream of tiny bullet-like particles or a wave wobbling its way through space. ... The light we see (visible light which is not the tautology it sounds) is only part of the electromagnetic spectrum, a great sweep of radiations which also includes radio, infra-red, ultra-violet, x-rays and gamma rays. ...

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... spectrum . ... SPECTRUM will compute synthetic spectra, line profiles equivalent widths, specific intensities, assuming LTE, from model atmospheres of early-type stars. ... sterne models . file containing model atmosphere in 2006 Sterne format . ... T=25000, log g=4.0, vt=0, 1400-1415A. a) NLTE model atmosphere, spectrum computed with SYNSPECv25 (black). b) LTE model atmosphere, same linelist in converted format, spectrum computed with SPECTRUM (red) using this input file and this linelist . ...

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• Spectrum v1 - Examples
• Conclusion
• Performance