In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

... 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 . ...

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). ... The name of the FITS dataset+table which contains the input source list. ... Switch which specifies whether the source list (after filtering with expression ) should be truncated at some maximum number, specified by parameter ncut . ... This parameter is read by the task if withlabels =`yes' and controls how source labels are assigned. ... This parameter is read if outfilestyle =`prefix'. outfile . ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Venus . ... Sky this Month . ... Astronomy for Kids . ... Is the incredibly slow rotation of Venus a result of a geologic cataclysm? ... It appears unlikely that resurfacing, if it occurred, led to the slow rotation rate of Venus, but it certainly may have caused some changes to the speed. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

... Confirm Dark Galaxy Existence . ... New evidence from NASA's Hubble Space Telescope and the Westerbork Synthesis Radio Telescope in the Netherlands has been used to rule out all but one of the ideas put forward to explain the existence of VIRGOHI 21, an intergalactic gas cloud 50 million light-years from the Earth. ... Are there more such dark galaxies out there? ... Credit: R. Minchin / Arecibo Observatory / Cardiff University / Isaac Newton Telescope / Westerbork Synthesis Radio Telescope . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... Search Results for ?stellar nursery? Posted on February 21, 2013 | No Comments A new image from the European southern ObservatoryтАЩs Visible and Infrared Survey Telescope for Astronomy €а(VISTA) telescope reveals the glowing clouds of gas and filaments of dust surrounding hot young [ ] . Continue Reading.. Posted on March 2, 2016 | ... Posted on November 12, 2015 | ... Posted on July 28, 2015 | ...

... 1Haynes+ A catalogue at 5 GHz of 915 sources in the Galactic plane is presented. Sources with a peak beam brightness temperature of at least 0.2 K above the surrounding background are included, except in confused regions; a point source of 0.2 K corresconds to 0.26 Jy. ... It was assumed that Hydra A was a point source with a peak flux density of 13 Jy at 5 GHz; this is equivalent to a mean beam brightness temperature of 10.0 K for a beamwidth of 4.1x4.4'. ...

Program: MEDIAN Purpose: Calculate median of data from set, file, table or expression. ... The result is ONE median. ... FILE ==== Syntax for reading from file: keyword=file(filename,column,rows) and the syntax for 'rows' is as for recall files. ex.1: DATA=file(profile.txt,2,3:20) reads from ASCII file profile.txt the second column. ... This table has two columns named 'X' and 'Y': ex.4: DATA=table(profset,tab1,X,1:39) reads row 1 to 39 from column 'X' from table 'tab1' in set 'profset'. ...

... Tags: book , Brieman , cigar , Clinton , data mining , Friedman , Hastie , KDD , light curve , machine learning , SCMA , shaking hands , SN , statistical learning , Supernova , Tibshirani . ... Leo Breiman (1928-2005) was one of the most dominant statisticians from the 20th century. ... An excerpt from ?A Conversation with Leo Breiman,? from Statistical Science, by Richard Olshen (2001), 16(2), pp. 184тАУ198 , casts a second thought on the direction of statistical researches: . ...

Appendix C Radiative Transfer for a Two-Level System This appendix details how to derive the total column density of a linear rigid-rotor molecule, such as CO, from the observed brightness of its rotational transition. ... C.2 Radiative Transfer for a Two-Level System I now consider emission in a two-level system from an upper J + 1 (denoted `u') to lower J (denoted `l') state. ... Spontaneous emission is controlled by the A coefficient, with a rate Aul nu . ... Tex exp(-31. ...

... Malkov, O. M. Smirnov . ... We present some current and future variations of our Guide Star Catalog Data Retrieval Software (GUIDARES). ... The GUIDARES software was born in 1991 (Malkov et al. 1992) as a PC-based tool for easy access to the Guide Star Catalog. ... Several applications arose (e.g., Malkov & Smirnov 1994b) where it was very useful for a program to be able to read the Guide Star Catalog easily, without the burden of sorting through its (very complicated) internal structure. ...

... It has to do with tweaking the HSV channels of an image. ... HSV is a color model that defines colors based on their Hue, Saturation and value. ... Value . ... White values in this channel have the maximum brightness, black values have no brightness at all. ... Note that the Saturation is at the maximum values (giving the purest colors) and the Value is at the maximum values as well (giving the brightest colors). ... Hue, Saturation, and Value, this time with the Value set to half the maximum value....

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

... ESO Science Newsletter October 2015 . 08 Oct 2015 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... A detailed report on the outcome of the ALMA Early Science Cycle 3 Proposal Review Process is available . ... Read more . ... 17 Sep 2015: . ... Science Operations 2015: Science Data Management . ... You are receiving this newsletter because you subscribed to the ESO Science Newsletter. ...

The aim of this assignment is to teach you how to carry out a very common programming task: reading in a bunch of data from a text file, doing something with it then writing the results out again. ... The goal of the assignment is to write a computer program which will select this sample for you. You will pick the micro-quasars to observe from a rather large catalogue, which can be found here: The catalogue is an ASCII (text) file - you can inspect it with a normal text editor. ...

... Compilation of TOPBASE data (Pavlenko Ya.V. Zhukovska, S. 2002, KFNT, accepted). ... Grid of model atmospheres of Sakurai's object (2002, A , 390, 621). Grid of model atmospheres of carbon giants, 12C/13C=10. Harris, G., Pavlenko, Ya, Jones, H.R.J, accepted by MNRAS, see astro-ph 0306141) . ... R CrB's 1D model atmospheres of different log N(Fe) (Pavlenko Ya.V. 1999. ... 1993, ApJ, 404, 333), but different log N(C) and log N(O), see Pavlenko (2007) submitted to Astron. ...

... grd -I x _ inc [ m|c ][/ y _ inc [ m|c ]] -R west / east / south / north [ r ] [ -A aspect _ ratio ] [ -C convergence _ limit ] [ -H [ nrec ] ] [ -Ll lower ] [ -Lu upper ] [ -N max _ iterations ] [ -Q ] [ -S search _ radius [ m ] ] [ -T tension _ factor [ ib ] ] [ -V [ l ] ] [ -Z over - relaxation _ factor ] [ -: ] [ -bi [ s ][ n ] ] surface reads randomly-spaced (x,y,z) triples from standard ... grd file. ... Default = 1 assumes isotropic grid.] ... H Input file(s) has Header record(s). ...

... Pre-university education . ... Samara region . ... Scientific Publications . ... Events All-Russian Youth Scientific Reading Conference named after S. P. Korolev . ... On the 27th - 29th of January in SSAU will be held the All-Russian Youth Scientific Reading Conference named after S. P. Korolev, dedicated to the 55th anniversary of space flight by Yu. ... The conference will be held with the support of the Federal Space Agency (Roscosmos) and the Ministry of Education and Science of Samara Region. ...

Next: The Formation and Evolution Up: NICMOS Science Previous: NICMOS Observes the Galactic . ... We have taken diffraction-limited ( 0.15") near-infrared F160W (henceforth H-band, for convenience) images with NICMOS on HST of the center of the R136 cluster (age 3.5 Myr) in the core of the 30 Dor giant HII region in the Large Magellanic Cloud. ... 1996, ApJ 466, 274) can sample only M >2M , while previous V and I band HST images with WFPC2 (Hunter et al. ...