Next: Bivariate polynomial interpolation Up: Echelle Spectra Previous: Removal of particle . The estimation of the background is one of the critical points in the reduction of echelle spectra for two reasons. ... diffuse light in the interorder space coming from adjacent orders. sky background spectrum . ... These locations are defined when performing the order definition (command DEFINE/ECHELLE or DEFINE/HOUGH ) and can be displayed by command LOAD/ECHELLE . ... Sky background definition . ...

Еще в разделе: (Показать все результаты (>1741) - www.sao.ru/ )

• Order definition: Method Hough
• Smoothing spline interpolation
• Sky background definition

... FOR EACH channel: IF ( fgExposure > 0 ) fgT = fgCounts ? fgMass / fgCounts : fgExposure / fgPixels COUNTS = fgCounts AREASCAL = fgT / EXPOSURE IF ( HDUCLAS2 == NET ) IF ( bgExposure > 0 ) IF ( bgCounts ) scale = fgExposure / bgExposure correction = scale * fgT * bgCounts / bgMass COUNTS -= round( scale * bgCounts ) STAT_ERR = sqrt( fgCounts + bgCounts * correction^2 ) ELSE STAT_ERR = fgCounts ? sqrt( fgCounts ) : 1 ELSE STAT_ERR = fgCounts ? ...

Еще в разделе: (Показать все результаты (>8940) - xmm.vilspa.esa.es/ )

• Home Page

... champ name : Source ID in the format explained in the Definitions section. ra : RA in decimal degrees. ... pos_error : Source count extraction radius in arcseconds. netB : net counts in B-band. See Definitions section. error_netB : error of net counts in B-band. see Definitions section. netS : S-band net counts, defined analogously to netB . ... See Definitions section. C21 : X-ray color. ... C32 : X-ray color. See Definitions section. rateB : B-band count rate in ksec. ...

Еще в разделе: (Показать все результаты (>3175) - hea-www.harvard.edu/ )

This layer is defined with a <LAYER> tag. You see that the background color is applied to the rectangular region occupied by the layer. The height of the colored area is determined by the height value. This layer is defined in CSS syntax. The style definition sets the position and background color, but doesn't set any values for border characteristics. ... The style definition includes a value for border-width. ... The style definition includes a value for layer-background-color. ...

Еще в разделе: (Показать все результаты (>872) - crydee.sai.msu.ru/ )

• HTML 4.0 Frameset Document Type Definition
• Long description for the illustration of a pixel's definition

... Consequently, it is inappropriate to expand and in ordinary spherical harmonics. The proper expansion expresses both and simultaneously in terms of a particular order of generalized spherical harmonics. ... Generalized spherical harmonics start at , and for each , . ... Generalized spherical harmonics obey a sum rule analogous to a familiar one for ordinary spherical harmonics, but it includes an explicit phase factor which depends on the orientation of the two lines of sight. ...

Еще в разделе: (Показать все результаты (>1385) - www.adass.org/ )

• ADASS 2003 Conference Proceedings
• ADASS 2002 Conference Proceedings
• Recreating Einstein Level One Processing Exposure Masks and Background Maps in

... PPTA timeline . ... List of projects . ... RedGW . ... One of the main goals of pulsar timing array projects is to limit the existence of a background of gravitational waves (GWs). Jenet et al. (2006) developed a method to determine such a limit if (and only if) the pulsar timing residuals were statistically white. In the paper we used data from six pulsars from the PPTA project to obtain a limit. The remaining pulsars were rejected because their timing residuals were not white. ...

Еще в разделе: (Показать все результаты (>6001) - www.atnf.csiro.au/ )

• Imaging and Image Velocity Definitions - INVERT and VELSW
• Australia Telescope National Facility
• casacore: casa::Aberration Class Reference

... There has been a heated public discussion in the past few years about whether our ninth planet is really deserving of the name. Since Pluto orbits a star, and is much less luminous, it certainly satisfies the definition we have above. The problem is actually not with Pluto, but with a very large number of other bodies in our Solar System which also satisfy this definition, but which are not called planets. Perhaps the most notable of these is Ceres, the largest asteroid. ... Planet . ...

Еще в разделе: (Показать все результаты (>382) - www.astrosociety.org/ )

• ASP: Pluto By Any Definition?

spaceweb@oulu.fi - last update: 1 July 1998, 1200 UT (RR) . ... Relates the wave number k to the wave frequency. ... From the equation of motion , m d v /dt = q( v x B ) one can calculate that, in a presence of magnetic field B , a charged particle is accelerated in direction perpendicular to both v (perp) and B . ... The angle a between magnetic field B and velocity vector of a charged particle, v ., i.e., sin a = v(perp) / v(total), where v(perp) refers to the velocity component perpendicular to B . ...

Еще в разделе: (Показать все результаты (>355) - www.iki.rssi.ru/ )

... HST . ... Data . ... HST Overview . Overview . ... Phase I Proposing . ... Retrieving HST Data . ... COS Data Handbook . ... James Green, Principal Investigator, University of Colorado . Cynthia Froning, Project Scientist, University of Colorado . Steve Osterman, Instrument Scientist, University of Colorado . ... Steve Penton, Software Scientist, University of Colorado . Stephane Beland, Software Scientist, University of Colorado . ... Jeffery Linsky, University of Colorado . ...

Еще в разделе: (Показать все результаты (>10714) - www.stsci.edu/ )

• Call Status Definitions
• HSP Instrument Definition Team Reports
• Chapter 2: Association Keywords

... V. Definitions Science Background Observ ations Results Summary Definitions W hat is a Maser? A maser is an optical amplifier that produces coherent microwaves due to stim ulated emissions. ... A megamaser is an extragalactic source with an unprecedented isotropic lum inosity of ~103L It is a m illion times more lum inous than nearby sources of masers. ... Research in this astronomical area has experience great growth due to interf erometric techniques. ...

Еще в разделе: (Показать все результаты (>1439) - www.naic.edu/ )

• http://www.naic.edu/~astro/School/Talks/large_pdf/handson_gbt2_2.pdf
• Keys Steps to a Successful Survey (1)

It all started back in 1979 when the diskdrive manufacturer come with the bright idea to make a new transfer protocol. ... This protocol wasn't an ANSI standard, so NCR join Shugart and the ANSI committee X3T9.2 was formed. The new name for the protocol was, Small Computer Systems Interface, SCSI. ... ANSI finished the SCSI standard in 1986. SCSI-II devices was released in 1988 and was an official standard in 1994. ... SCSI is in opposite to IDE/ATA very flexible. ...

Еще в разделе: (Показать все результаты (>6137) - www.arcetri.astro.it/ )

• Finding definitions in the source
• SMP: Two Definitions?
• Signals ID definitions

... Content Model: Optional list header (LH), followed by one or more terms (DT) and definitions (DD). A definition list is a list of terms and corresponding definitions. Definition lists are typically formatted with the term on the left with the definition following on the right or on the next line. ... The definition list element can take the COMPACT attribute, which suggests that a compact rendering be used, and is appropriate if the list elements are small and/or the entire list is large. ...

Еще в разделе: (Показать все результаты (>82) - comet.sai.msu.ru/ )

... Recent Topics . ... Forum . MAO main . Info . Definition of Polarization Angle . info . ... От: "Claus Leitherer" . ... Тема: Definition of Polarization Angle . ... Please take note of the attached IAU recommendation concerning the definition . of the polarization angle in astronomical measurements. ... www.mao.kiev.ua/images/postbyemail/Polarization.pdf . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ...

Еще в разделе: (Показать все результаты (>100) - www.mao.kiev.ua/ )

... A baseline vector is oriented from telescope 1 to telescope 2, i.e. the baseline coordinates are the coordinates of station 2 minus the coordinates from station 1. In the aperture plane, the coordinate increases to the East, and the coordinate increases to the North. ... In PEARL, a map on the sky is allocated with the -coordinate corresponding to RA, which increases to the left (East). The relationship between visibility and map is then . ...

Еще в разделе: (Показать все результаты (>5848) - www.eso.org/ )

• ESO - Observing conditions: definitions
• FORS Sec Std and Abs Phot Project
• ESO - Are there order definition frames with spatial information, i.e. using 9

Next: Procedure for Dealing with Up: scientific Previous: Code of Good Practice . ... Any practice or conduct that seriously deviates from the ethical standards embodied in the Code of Good Practice for Scholarly and Scientific Research for proposing, conducting and publishing scientific research constitutes Scientific Misconduct, and if proven renders the offending member liable to the Observatory's disciplinary procedures. ...

Еще в разделе: (Показать все результаты (>1417) - star.arm.ac.uk/ )

• Spectrum - control
• Glossary (DRAFT)

... Survey processing . ... ESO - Public Surveys . ... The Survey Areas Definition Tool is part of the VISTA Data Flow System Project (a separate project to the VISTA Project) and was delivered to ESO for use with VISTA and (later) VST. ... The SADT and can be found via the ESO SADT page and includes inter alia . ... The Y overlap value set in SADT controls how the Y edges of adjacent tiles overlap. ... Y overlap 0/60 efficiently uses the one time covered regions to make a 2x covered region . ...

Еще в разделе: (Показать все результаты (>14) - www.vista.ac.uk/ )

• VISTA - Visible and Infrared Survey Telescope for Astronomy

Stellarium 0.12.3 . ... Classes . ... File Structure . ... Atmosphere Class Reference . ... More... #include < Atmosphere.hpp > . void  . computeColor (double JD, Vec3d _sunPos, Vec3d moonPos, float moonPhase, StelCore *core, float eclipseFac, float latitude=45.f, float altitude=200.f, float temperature=15.f, float relativeHumidity=40.f) . ... Get fade in/out duration in seconds. ... getFlagShow () const . ... getFadeIntensity (void) const . ... Definition at line 40 of file Atmosphere.hpp . ...

Еще в разделе: (Показать все результаты (>621) - astro.uni-altai.ru/ )

• Stellarium: StelButton Class Reference
• Stellarium: StelQGLViewport Class Reference
• Stellarium: StelMainGraphicsView Class Reference

Optical characteristics of non-spherical scatterers . ... A list of reviews (under preparation) and links to the databases of Hovenier's and Gustafson's groups on the visible/infrared and microwave light scattering experiments, respectively. ... Light scattering codes . ... Benchmarks in optical properties . Tables of different light scattering characteristics carefully calculated by different codes (methods). Dependence of optical properties on scatterer parameters . ...

Еще в разделе: (Показать все результаты (>197) - www.astro.spbu.ru/ )

• Special Practice in MIDAS
• Database of Optical Properties -- Level: subpage

.

Еще в разделе: (Показать все результаты (>655) - www.cplire.ru/ )

Each Apache module is described using a common format that looks like this: . Status: status . ... This indicates how tightly bound into the Apache Web server the module is; in other words, you may need to recompile the server in order to gain access to the module and its functionality. ... A module with "Extension" status is not normally compiled and loaded into the server. ... Modules which are not included with the base Apache distribution ("third-party modules") may use the "External" status. ...

Еще в разделе: (Показать все результаты (>46) - neptun.sai.msu.ru/ )

• Definitions of terms used to describe Apache directives
• Source Re-organisation