The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

Astronomy Picture of the Day . I Zwicky 18: Young Galaxy . ... 3.12.2004 . ... Virginia ), ESA , NASA Explanation: The Milky Way is an ordinary 12 billion year old spiral galaxy, and even our middle-aged Sun is pushing 4.5 billion years. But all the stars in dwarf galaxy I Zwicky 18 are much younger. ... December 2004 . ... Publications with keywords: dwarf galaxy . Publications with words: dwarf galaxy . ... Dwarf Galaxies in the Coma Cluster . Nearby Dwarf Galaxy Leo I . ...

... We describe the construction of convolution kernels that allow one to generate (multiwavelength) images with a common PSF, thus preserving the colors of the astronomical sources. We generate convolution kernels for the cameras of Spitzer, Herschel Space Observatory, Galaxy Evolution Explorer (GALEX), Wide-field Infrared Survey Explorer (WISE), ground-based optical telescopes (Moffat functions and sum of Gaussians), and Gaussian PSFs. ... ADS ] . ADS Citation Query . citations = 125 . ...

... Science Users Information > Science Publications > Science Announcements > Revised Acknowledgement for Publications Based on ESO Data . ... Science Archive Facility . ... When findings based on ESO data are published, acknowledgement is requested through a specific statement, to be found here . ... Please add this acknowledgement to your future papers which are based on ESO data, regardless of whether these are new observations using proprietary data or data obtained from the ESO Science Archive . ...

... 2015 September 26 . M31 versus M33 . ... Explanation: Separated by about 14 degrees (28 Full Moons ) in planet Earth's sky, spiral galaxies M31 at left, and M33 are both large members of the Local Group , along with our own Milky Way galaxy. ... But M31, the Andromeda Galaxy , is really 2.5 million light-years distant and M33, the Triangulum Galaxy , is also about 3 million light years away. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... In this work we present theSkyNet Pan-STARRS1 Optical Galaxy Survey (POGS) project. ...

... Recent Results . ... last 10 years in ADS) . in SAO press releases . ... observations database) . ... Last update: . ... Measurement of the dark halo shape in polar ring galaxies . Determining the mass of supermassive black hole in galaxy Mrk6 nucleus based on spectropolarimetric observations . The dust jets in the nucleus of comet 29P/Schwassmann-Wachmann 1 . ... New Polar Ring Galaxies . Traces of recent interactions in isolated Seyfert galaxies . ...

... Posts tagged ?model based? ... arXiv:stat.ME:0910.2585] . Variable Selection and Updating In Model-Based Discriminant Analysis for High Dimensional Data with Food Authenticity Applications . ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Jargon , Methods , Spectral , Stat | ... Tags: bimodality , chi-square minimization , Classification , CMD , Estimation , machine learning , massive data , model based , PCA , spectral analysis , spectroscopic , survey , VO . ...

K-band Arcetri Obscured Supernova Search . What is the KAOSS Project? W hat is the KAOSS Project? Some recent surveys aimed at detecting Supernovae (SNe) in the optical have found that starburst galaxies do not show evidence for an enhanced SN rate, with respect to quiescent galaxies (Richmond et al. ... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interacting galaxies, finding no evidence for correlations between SN rate and galaxy properties. ...

... Mokhovaya st., 11, Moscow, 103907, Russia . ... Moscow Institute for Physics and Technology . ... 9, Dolgoprudny, Moscow region, Russia. ... 1999, Vol. ... In this report, we discuss an approach to construction of information searching systems based on dynamic chaos and intended to operate in computer networks, local area or Internet. Also we discuss an application of this technology to the problems of searching for information in unstructured text databases with natural-language requests. ...

... Planets . ... The planets were found using the HARPS instrument on the 3.6m telescope at ESOтАЩs La Silla Observatory. ... A planet in orbit around a star causes the star to regularly move towards and away from observers on Earth. ... One newly discovered planet, HD 85512 b, is best hope found so far for a habitable exoplanet. ... The HARPS team so far have found that about 40% of stars similar to own Sun have at least one planet smaller than Saturn (which is 95 times more massive than Earth). ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

QSO ABSORPTION LINE STUDIES with the HUBBLE SPACE TELESCOPE COLORADO GROUP: JOHN STOCKE , MIKE SHULL, JAMES GREEN, STEVE PENTON, CHARLES DANFORTH, BRIAN KEENEY Results thus far based on: 300 QSO ABSORBERS found by HST Spectrographs at z 0.1 and at low column densities (NH I = 1012.5--16.5 cm-2 ) AND 1.35 Million galaxy locations and redshifts from the CfA ... 2007, ApJ, 671, 146) At least 55% of all Ly absorbers with NH I > 1013 cm-2 are METAL-BEARING at ~ 10% SOLAR. ...

... Based on the measurements of the Stokes parameters in the continuum and in the broad 0.6563 nm hydrogen emission line obtained with the 6-m telescope for the Seyfert galaxy Mkn 6, secular variability of the hydrogen line profile polarization was discovered; a time lag of less than 2 days between the continuum flux and the polarized continuum emission was determined which corresponds to the size of the region where the polarization of the continuum occurs, less than 0.001 pc. ...

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

Dark matter maps for a sample of 50 individual galaxy clusters (left), an average galaxy cluster (center), and those based on dark matter theory (right). ... The map based on predictions from CDM theory (right, middle) is a close match to the average galaxy cluster observed with the Subaru Telescope. NAOJ/ASIAA/School of Physics and Astronomy, University of Birmingham/Kavli IPMU/Astronomical Institute, Tohoku University ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... Общероссийская неделя "Астрономия на тротуаре" - 15-17 апреля . ... Практическая астрономия ? Астрономия и компьютеры (Модераторы: Deimos , Ed_Vazhorov ) ? PIC 16F627 Based EQ-5 / CG-5 Dual Axis Hand Controller . ...

... Huchtmeier Richter A catalog of all published HI observations of external galaxies has been compiled. ... the morphological type (internally coded in a crude 1-byte code based on the system of the RC2 Second Reference Catalog of Bright Galaxies (de Vaucouleurs et al, 1976)) in column 4; . the inclination i (in degrees) used by the authors in column 5. ... A General Catalog of HI Observations of External Galaxies by W.K. Huchtmeier O.-G. Richter, H.D. Bohnenstengel and M.Hauschildt May 1983. ...