... You are here: start €Ё lbaops €Ё lbafeb2009 €Ё vx014b . ... VLBI Schedule . ... Observer's Wiki . ... lbaops:lbafeb2009:vx014b . ... Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/vx014/vx014b . ... VT11: I tested whether any noticeable difference could be found between continuous CLCAL and CLCAL on a 1 minute average looking at a (single) strong source. ... Polarisation map of one of the sources Others in the same place. lbaops/lbafeb2009/vx014b.txt €§ Last modified: 2015/12/18 16:38 (external edit) ...

... We Fourier analysed Hubble Telescope Crab pulsar data obtained with the High Speed Photometer in October 1993. A weak modulation at frequency Hz is detected. We found a strong correlation between this result and the Fourier transform result of stroboscopic Crab pulsar data obtained in December 1994 at the 1.82m telescope of Asiago observatory (University of Padua, Italy). ... We found that both data show a weak modulation at the period of 60 seconds. ... The corresponding frequency is Hz . ...

... The center frequency was 1397.93 Mhz. ... make a model of the resonance from the Off source data. fit this model to the on source data . ... w is the frequency . ... But we divide the onSource and off source by the same function so the the noise is not part of onSrc/Offsrc at the end. ... There are 14 pages. 1 for each on/off pair. 1st Plot: the 2 minute average band passes for onSrc (black), offSrc (red), and calOn - calOff (green). 2nd Plot: Onsrc/calDif, offSrc/calDif and the model fits to each. ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

http://hea-www.harvard.edu/AstroStat/slog/ 2008 / arxiv - 1st - week -may- 2008 / Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/AstroStat/slog/ 2008 / arxiv - 1st - week -may- 2008 /comment-page-1/#comment-220 vlk Mon, 12 May ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... Monthly Sky Notes . ... By admin October 1, 2010 Posted in: Stars . A sky of blazing stars (Image Credit: NASA/ESA) . Imagine that once the Sun sets, rather than a dark sky sprinkled with a few thousand dim stars, we had a sky blazing with ten thousand or so stars blazing brighter than Venus. ... Planets orbiting stars in the NGC 3603 Young Cluster would experience just such a sky. ...

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Meteors are more than just pretty lights in the sky. Since the majority of meteor-producing meteoroids originate from comets, they contain invaluable information about these objects not otherwise obtainable. ... One such possibility is the planet Mars. ... Taking into account the slower average speed of incoming material at the heliocentric distance of Mars from the Sun, a meteoroid of the same mass entering the martian atmosphere at 30km/sec would produce a meteor +0.5 mag fainter than at Earth. ...

... In Figures 2 and 3 we show the 6m telescope spectra of blue compact galaxies HS 1013+3809 and HS 1442+4250, in which typical high excitation HII-region narrow emission lines are seen. ... for red part of HS 1442+4250. ... This correction = 354 km s -1 was calculated for HS 1013+3809 and = 202 km s -1 for HS 1442+4250. ... While HS 1013+3809 looks very symmetric and very compact, with intense star formation burst taking place in its very center, HS 1442+4250 is well elongated, resembling edge-on disk...

... November 16, 1997 . The Leonid Meteor Shower . Credit: P. Jenniskens ( NASA / Ames ) . Explanation: The Leonid Meteor Shower will likely reach its peak in the early hours this Monday morning. ... This year's Leonids may prove particularly exciting as observers anticipate the legendary Leonid storm of activity will occur sometime during the next few apparitions of this annual meteor shower - although most expect the meteor storm to occur in 1998 or 1999. ... About APOD > . ...

The study of energetic particles acceleration and transport within the magnetosphere and on its boundaries is the main goal of DOK-2 experiment on Auroral Probe in a frame of INTERBALL project. ... DOK-2 uses two pairs of energetic particle telescopes . ... This information is available only during the most informative Real Time mode of DOK-2. ... Full 56-57 channel spectra accumulated during time intervals from 10 s to 1464 s depending on a particle intensity. ... For this time interval: . ...

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Real Reality Show: Would aliens be anything like us? ... The Real Reality Show: All about the Drake Equation . ... The Real Reality Show . ... The Real Reality Show: Matter and Energy . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... GBT results . ... OOF Holography Home Page Quick Links: . ... This page contains the more recent measurements with our new OOF Holography system. ... The latest Out-Of-Focus data were taken with SCUBA on 11th February 2003. ... Aperture . ... Residuals . ... The results are summarised in the following plots: ~~available soon - see previous results page for now~~ . We have recently obtained some OOF data from the Green Bank Telescope operated by the NRAO in the US. the results are shown here. ...

... The most precisely determined characteristic for accreting neutron stars (NS's) is their period. ... Period changes show fluctuations. ... Some applications of stochastic processes in astrophysics especially in accreting systems were discussed in Lipunov (1987),Hoshino Takeshima (1993) and Lipunov (1992).In Hoshino Takeshima (1993) the authors, using simple models of MHD turbulence, try to explain aperiodic changes in X-ray luminosity of X-ray pulsars. ... Here, -constant angular momentum. ...

Correlated flashes of masers H2O . ... In 1981 - 1982 years it was revealed several Flashes of maser radiation of H2O radioline at wavelength 1.35 cm in the radio-sourse W49, developing practically synchronously at several radial velocities. It's known that components of the maser radiation of H2O radioline profile with different radial velocities arise in separate spatially diverse areas of a starformation. ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

Next: Inverse transform Up: No Title Previous: Analysis of a . As pointed out earlier, if the data are periodic, Fourier analysis is best and there is no need for wavelet transforms. ... First, we show the graph of with its Mexican-hat wavelet transform (Fig 12). Figure 12: g2-wavelet map of showing the gradual shift to shorter durations. ... Figure 13: g2-wavelet map of a strongly modulated oscillation. ... Figure 14: g2-wavelet map of an intermittent signal. ...

Comment on J2246-1206 . In contrast to the jet pointing to the NE in our image, the 5 GHz VLBI image of Shen et al. (1998) shows no indication of extended emission above the 20 mJy/beam level. Hong et al. (1999) find a jet component to the SE and identify that with a "superluminal" component possibly ejected in 1992. A 15 GHz image from the USNO database, taken nearly at the same epoch as the image of Hong et al. (1999) does not show any component at this position angle. ...

Classroom Activity: A Viewgraph Comet . ... This will simulate the Earth's orbit around the Sun. ... Draw several comets along the path with their tails pointing away from the Sun. ... You can create other viewgraphs that have a smaller scale and show several comet orbits or constellations. ... Show how the Earth's orbit is almost circular compared to the comet's. Explain that the Sun is at the focus of the orbits of the planets, asteroids, and comets. ... Actually, comets have two tails. ...

Atmospheric influence on the different radio-engineering system functioning . ESTIMATION OF ATMOSPHERIC OPTICAL CHARACTERISTICS AND REMOTELY SANSED IMAGE CORRECTION . ... Direct transmittance estimation results for 12 channels of the spectrometer CHRIS. ... We have managed to develop a direct method of estimating the discrete Normalized Atmospheric Point Spread Function (NAPSF) from available images alone, not using any external sources of information about the atmosphere. ... IRE RAS 1996-20 11 ...