... We present composite spectra of red and blue sub-samples of the PHFS quasars, and tabulate their emission line properties. The median H and [O III ] emission line equivalent widths of the red quasar sub-sample are a factor of ten weaker than those of the blue quasar sub-sample. ... Both the colours and the emission line equivalent widths of the red quasars can be explained by the addition of a featureless red synchrotron continuum component to an otherwise normal blue quasar spectrum. ...

... Colours of stars and galaxies hold information on intrinsic and extrinsic parameters, such as stellar temperatures and galaxy populations, selective absorption and colour changes due different dust contents and inclination angles of galaxies, as well as galaxy redshifts and evolution. ... The colour magnitude diagram of 65000 galaxies to which all above-mentioned quantities and others contribute can only be explained by comparison with simulations. ... Colours are also of technical help. ...

... MADS] data depth? Tags: break points , data depth , MADS , mean , median , multivariate , nonparametric , order , parasite , quantile , robust , sort , vertebrate . ... Tags: biased , breakdown point , chi-square , confidence interval , coverage , delta chi-square , estimator , LAD , mean , median , plug-in , rmse . ... The breakdown point of the mean is asymptotically zero whereas the breakdown point of the median is 1/2. ... Tags: breakdown point , mean , median , quantile . ...

Here are various colour wedges that illustrate some of the colour schemes possible with `cubehelix' (together with files for use in ds9 or kvis). the `default' scheme: . ds9 or kvis . with different start colours: . ... with different hue values: . ... with different rotations: . ... rotating the other way around: . ... no colour rotation: . ... different gammas: . ... go to: cubehelix page . ...

... ESO Press Photo 19/98 . ... This is a colour photo from the VLT that shows NGC 4650A , a member of the so-called Centaurus chain of galaxies in the southern constellation of that name. ... As it is clear from this high-resolution picture, there are two main components, a lenticular-shaped galaxy (of type S0), surrounded by a knotty extended ring-like distribution of stars, dust and gas , nearly perpendicular to each other. ... This is the caption to ESO PR Photo 19/98 [JPG, 112k] . ...

... 29.08.1998 . ... Red stars are cool, around 3,000 kelvins (K), while blue stars are hotter and can have temperatures over 30,000 K. Our own lovely yellow Sun's temperature is a comforting 6,000 K. Differences in star colours are dramatically illustrated in the above photo of the constellation Orion , made using a "star trail step-focus" technique . ... Publications with keywords: Orion - temperature - star . Publications with words: Orion - temperature - star . ... LDN 1622: Dark Nebula in Orion . ...

... Ветровка Tony Baker. ... title='Villeroy & Boch Anmut My Colour Emerald Green Тарелка столовая, 27 см - Villeroy & Boch' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ...

. Album : asv-album :: Travels to distant places and countries :: 1998/03 Tashkent (Uzbekistan) . Up . << Prev . Colours! Colours! Colours! . Next >> . Photo album generated by album tool from D. Madison 's MarginalHacks on Tue Jun 23 14:46:31 2015 .

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CCD Forum Message . Forums: . ... CCD Tips and Techniques | Post . ... Colour Filter On A CCD . ... I was wondering if you could help me with a question I have about colour filters on CCD's: . For a CCD that is using a bayer colour filter on top of the pixel array, i have seen two different ways that this has been arranged: . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... We describe image compression based on the pyramidal median transform, introduced as an alternative to the use of a wavelet transform. The use of a multiresolution support allows ``protection'' of astronomical objects in the image. ... We describe an approach to astronomical image compression through noise removal. ... We begin by explaining why transforms other than the wavelet transform are important for astronomical image compression. ... Negative Values. ... The image dimensions were . ...

Next: 3.2. ... The Results. ... Figure 3: Colour-Magnitude diagram for 337 stars in NGC 6789. ... The CM diagrams of regions C,E and F (see Fig. 1 b ) are shown in Fig. 3 , where stars from region C are denoted by open circles, ones from the E are filled diamonds and stars from the region F are shown by dots. ... 3.2 . ... Most of the bright stars (I The diagram shown in Fig. 3 have not been corrected for interstellar extinction. ...

Welcome to K -corrections calculator, simple service allowing one to determine K -corrections of a galaxy, given its redshift and one or more colours. ... K -correction in choose filter.. ... Redshift . Colour choose colour.. Colour value . Calculator . ... calculate spectral energy distributions , K-corrections calculator , GALEX FUV NUV , UKIDSS YJHK , K-corrections of galaxies , spectral based k-corrections , SDSS filter set K-corrections , K correction code IDL , kcorrect IDL C , . ...

... Exoplanets . ... Artists impression of the blue exoplanet. ... This exoplanet is located in the constellation of Vulpecula, the fox, a faint pattern inside the Summer Triangle.ТљТљ This planet is a not too distant 63 light years away so has been studied by space-based telescopes.Тљ Data collected from Hubbleт??s Imaging Spectrograph (STIS) when this planet moved behind its star showed that in the shadow of the star the light reflected from HD 189733b reduced into the blue part of the spectrum. ...

pro masonoffall, flist ,projid,date,b,sclcal=sclcal,sclJy=sclJy, avg = avg ,median=median,side=side,dateroll=dateroll,verbose=verbose,nonorm=nonorm,dps=dps,flux=flux,board=board,bonrecs=bonrecs,boffrecs=boffrecs,smooff=smooff,getfiles=getfiles,ravg=ravg,float=float,double=double,blankcor=blankcor,normcal=normcal ; check if flist (if supplied as a list) s a string variable, if not ; assume it is a numeric list and add .fits. if (n_elements( flist ) EQ 4) then ...

... We have measured this "redshift" for the pink black holes, and allowed for it in our calculations. ... We see this effect in the emission from gas around these pink black holes, but it is far too small an effect to account for the pinkness. Thus the swirling motions of gas around or into the black holes cannot produc the colour. ... At first we thought that these things were normal blue black holes hidden behind clouds of interstellar dust, that absorbed the blue light and made them appear pink. ...

... Class . ... FIELD | ... java.lang.Object ij.process.ImageStatistics . ... public class ImageStatistics . ... double . ... Angle in degrees of fitted ellipse . ... protected Calibration . ... protected int . ... int[] . ... protected double . ... Field Detail public int[] histogram . public int pixelCount . ... public int mode . ... protected int width . protected int height . ... Method Detail public static ImageStatistics getStatistics ( ImageProcessor ip, int mOptions, Calibration cal) . ...

On the plot the real time (UT) of the FSP events is shown. Date is shown along the X-axis, the UT - along the Y-axis. ... For each spacecraft not only the special colour, but the special line in frame of the each day is used. for the INTERBALL TAIL PROBE - the first line (and the red colour), . for the INTERBALL AURORAL PROBE - the second line (and the turquoise colour), . ... for the GEOTAIL - the fourth line (and the dark blue colour). ...

Download Izmccd (~2.7 MB). Designation of objects on image. Circles of different colour mark objects on an image. ... The star or something another is marked for the following measurement. If set mode "i", at click on the star, a coordinates in pixels, equatorial coordinates, proper motions and star magnitudes in two photometric systems are printed in a window "Information". Equatorial coordinates; proper motions and magnitudes are printed, if this star is identified in a catalogue). ...