... 2012 March 13 . The M81 Galaxy Group Through the Integrated Flux Nebula . ... Explanation: Large galaxies and faint nebulae highlight this deep image of the M81 Group of galaxies. First and foremost in the wide-angle 12-hour exposure is the grand design spiral galaxy M81 , the largest galaxy visible in the image. ... This whole galaxy menagerie is seen through the faint glow of an Integrated Flux Nebula , a little studied complex of diffuse gas and dust clouds in our Milky Way Galaxy . ...

... Credit Copyright: Nicolюs Villegas Explanation: Large galaxies and faint nebulae highlight this deep image of the M81 Group of galaxies. ... M81 is gravitationally interacting with M82 just below it, a big galaxy with an unusual halo of filamentary red-glowing gas. Around the image many other galaxies from the M81 Group of galaxies can be seen, as well as a lucky satellite glint streaking across the image left. ... Galaxy Wars: M81 versus M82 . Bright Spiral Galaxy M81 from Hubble . ...

... Science Users Information > Observing Facilities > Instrumentation Development > Integration Cryo-Vacuum . ... Integration Cryo-Vacuum . ... MAD . ... Semented Mirror . ... Paranal Instruments . ... ESO Departments . ... July 2010 . ... October 2008 . ... Jan 2008 . ... Our department has been involved for many years in the first generation VLT instruments. ... MAD first MCAO ever . ... This visitor instrument was fully integrated uder the responsibility of the integration and cryo-vacuum department...

. Next: Pulse Widths Up: Integrated and single pulse Previous: Integrated and single pulse . љ . Huge variations from pulse to pulse . Integrating several 100 forms a stable profile . Integrated profiles differ widely . Basic model includes core + cone . Slice in different ways to get various profiles . љ љ . Figure 54: Integrated pulse profiles . Jon Bell . Thu Dec 19 15:15:11 GMT 1996

Research Activities . Integrated superconducting submm receivers and spectrometers. ... Superconducting Integrated Submm Spectrometer for Laboratory Applications. ... Proposed Superconducting Integrated Submm spectrometer for laboratory applications can in situ detect radiation from a coolable rf source (4 - 100 K) within frequency range of 200 - 700 GHz at receiver noise temperature: below 500 K (direct detection sensitivity better than 10 -13 W). ... Prototype of the Integrated spectrometer (a). ...

... The Story of the Christmas Star continues in Northern Ireland: on Friday 11 December 2009, at the Windmill Integrated Primary School in Dungannon. During the UNAWE Astro-Art Fun workshops, held by Miruna Popescu from Armagh Observatory, the children have listened to the story and then made their own interpretation of the story on the individually designed Christmas cards and creative paintings. ... International Year of Astronomy, Ireland National Node . ...

... Posts tagged ?mean integrated square error? ... This simple law, despite my trial of full text search, was not showing in ADS. ... To explain such decomposition and to make error analysis statistically rigorous, the law of total variance (LTV) seems indispensable. ... MADS] Law of Total Variance? Tags: additive , bias , law of total variance , MADS , mathematical statistics , mean integrated square error , mean square error , MISE , mse , probability theory , variance . ... Entries RSS . ...

... A revised machine-readable source list for the Rees 38-MHz survey. ... 233R ============================================================================ We present a revised machine-readable source list for the Rees 38-MHz (or '8C') survey with improved positions and no redundancy. The Rees 38-MHz survey covers an area of about 1 sr north of declination +60 degrees. The angular resolution is 4.5 x 4.5cosec(dec) arcmin**2 and the limiting flux density over much of the survey area is about 1 Jy. ...

... Figure 10: Mean power spectrum obtained by time-averagi ng the energy map at each duration. For non-periodic signals, the mean wavelet spectrum is similar to the Fourier spectrum. ... The compromise we reached in allowing for single bump localization (something Fourier cannot do) reduces the spectral accuracy. ... Denote by the Fourier transform of the signal, the Fourier transform of the Mexican hat wavelet. ... by which the wavelet transform is a band-pass filtered Fourier Transform. ...

... We present a new code for evolving three-dimensional self-gravitating collisionless systems with a large number of particles . FLY (Fast Level-based N-bodY code) is a fully parallel code based on a tree algorithm. ... FLY output data can be analysed with AstroMD, an analysis and visualization tool specifically designed for astrophysical data. ... During the tree walk procedure, FLY builds a single interaction list (IL) to be applied to all particles inside a grouping cell ( ). ...

. Last updated Aug 3, 1998 by K.Borozdin, kbor@hea.iki.rssi.ru

... Tonight's Sky . ... Observing . ... Sky this Month . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Observing Podcasts . ... Astronomy for Kids . ... Galaxies and the integrated flux nebula in Ursa Major . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... 7C(G) catalogue -------------------------------------------------------------------------------- See also: J/A+AS/110/419 : 7C: 151MHz survey of region RA=17h, DE=+65deg (Visser+, 1995) J/MNRAS/282/779 : 7C: 151MHz survey of region 9-16h 20-35deg (Waldram+ 1996) J/MNRAS/298/637 : 7C: 151MHz survey of 3 regions (Pooley+, 1998) Byte-by-byte Description of file: catalog.dat ---------------------------------------------------- ...

... NASA Integrated Services Network (NISN) . ... The NASA Integrated Services Network's mission is to provide a computer communications network designed to support NASA Science flight mission, discipline research programs, and collaborating scientists' affiliate research institutes. ... Use of the NASA Integrated Services Network to support NASA research, related training, and associated technical activities at non-profit institutions of research and education is acceptable. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Sea Launch . ... Land Launch . ... Integrated Launch Vehicle . ... Integrated Launch Vehicle (ILV) Zenit-3SL consists of: launch vehicle Zenit-2S, upper stage Block DM-SL, and Payload Unit containing a spacecraft. ... ILV Zenit-3SL was developed on the basis of Zenit-2 launch vehicle and upper stage Block DM, that have been in service for some time, which assures high flight reliability even during its first launches. ...

... Baseline Quality ­ "Fast" OTF Dec-RA Map Raw spectrum: 1s integration 3s average: rms/beam 3s average + Hanning smooth Intensity (x Tsys) Baseline Quality ­ Power Spectrum High freq. Low freq. ... Raw spectrum: 1s integration 6s average: rms/beam 6s average + Hanning smooth Baseline Quality ­ Drift Map Raw spectrum: 1s integration 12s average: rms/beam 12s average + Hanning smooth Intensity (x Tsys) Baseline Quality ­ Power Spectrum High freq. ...

... 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. ...

... We have compiled the Catalogue of extragalactic supernovae using the GCVS card catalogue. ... Doubtful (?), or rejected (-) SN 8 A1 --- RemFlag [*] The '*' indicates a remark in sn_rem.dat 10- 19 A10 --- Gal Parent galaxy designation 21- 22 I2 h RAh Right Ascension 1950 of Parent galaxy 23- 24 I2 min RAm Right Ascension 1950 (minutes) 25- 28 F4.1 s RAs Right Ascension 1950 (seconds) 29 A1 --- DE- Declination 1950 (sign) 30- 31 I2 deg DEd Declination 1950 of Parent ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...