Next: Analysis in the Up: MIDAS utilities for Previous: Fourier analysis . For the detection of smooth signals, e.g. sinusoids, use either SCARGLE/TSA or AOV/TSA with bins. ... SCARGLE/TSA -- . Scargle sine model: This command computes Scargle's (1982) periodogram for unevenly spaced observations x . ... In this way, the command can be used to perform a CLEAN-like analysis manually by removing individual oscillations one by one in the time domain (see Roberts et al. ... AOV/TSA -- . ...

Next: A Gravitational Wave Map Previous: Critical Frequencies and Gravitational . In this section we consider the GWB spectrum as such, that is, we study how dimensionless strain metric amplitude h is dependent on frequency. For a sample of N independent binaries emitting GW at a given frequency the net result is . ... are, respectively, effective distance to the sample and effective mass of the binaries (in solar units) producing the GW radiation at the frequency . ...

... 238, Astronomical Data Analysis Software and Systems X, eds. F. R. Harnden, Jr., ... We developed the Distributed Analysis Software Hierarchy (DASH), an object-oriented data reduction and data analysis system for efficient processing of data from the SUBARU telescope. ... Figure 1: DASH application model (SUBARU restaurant) . There are three subsystems of the Subaru computer system: the Subaru Observation Software System (SOSS), the Subaru Telescope data ARchive System (STARS), and DASH. ...

... T2315 Date Received: 2007-Jan-25 16:20:39 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time : Prop osal Title: Regular Terrestrial Aeronomy Radar Thermosphere 144 Hours 24 hrs A Proposal for 430 MHz Radar Meteor Observations during January and June with two scientific goals: a) Study of the uniformity of the Interplanetary Dust Distribution on the ...

STScI . HST . ... HST Overview . ... The NICMOS Instrument Team of the Space Telescope Science Institute have implemented, as a service to the community, an observing program for NICMOS which obtains parallel exposures when other HST instruments are prime. ... The HST NICMOS Service Parallel Program was presented in a poster during the January 1998 AAS meeting. ... A complete list of the NICMOS Parallel Program data may be retrieved from STScI Data Archive at URL "http://archive.stsci.edu/" . ...

... Kashyap, V., Drake, J., Smith, R., & Wargelin, B., 2014, 15 Years of Science with Chandra Symposium, Spectrum Ultimum Capellae: XV Years of Chandra Observations of Capella . ... Kashyap, V.L., Connors, A., Drake, J., Lee, T., Posson-Brown, J., Saar, S., Scargle, J., van Dyk, D., & Wong, R., 2014, AAS/HEAD 14, 119.05 TANAGRA: Timing Analysis of Grating Data . ... Audard, M., G del, M., Drake, J.J., & Kashyap, V.L., 2000, ApJ, 541, 396 . Audard, M., G del, M., & Guinan, E.F., 1999, ApJ, 513, L53 . ...

Magda Arnaboldi (MSSSO), Tom Oosterloo (ATNF), Francoise Combes (DEMIRM), . ... New, high resolution observations of the H I emission line and 20-cm continuum at the Australia Telescope Compact Array (ATCA) for the prototype polar ring galaxy NGC 4650A are presented. ... Keywords. galaxies: individual (NGC 4650A) - galaxies: dynamics - galaxies: dark matter. related paper: Combes Arnaboldi 1996, A 305, 763, . The dark halo of polar-ring galaxy NGC 4650a: flattened towards the polar ring ?'' . ...

Radio pulsars strictly periodic signals 14.03.2016 B 10 G;E 10 V / cm 12 10 2 Individual pulses and average profile of pulsar 14.03.2016 3 Average profiles of pulsars 14.03.2016 average energy distribution of pulses by phase of period. ... 14.03.2016 5 2695 Giant pulses (GPs) of pulsar Intensity, a.u. Time, ms Pulses that exceed the average profile over 30 times were called giant pulses. ... 2005) 14.03.2016 8 Individual pulses energy distribution 1937+21. ...

... One of the most widely used tools of Fourier analysis is the Parseval theorem. It enables the experimentalist to view how the `energy' in the signal is distributed among frequencies. The Fast Fourier Transform (FFT) algorithms have made power spectra one of the obvious diagnostics tools during data acquisition, and energy maps are a versatile alternative. ... The result is an energy map (Fig. 9), showing the distribution of energy corresponding to the wavelet map (Fig. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

Last time we saw that flat rotation curves for galaxies, when measured in galaxies with extended gas distributions, provides unambiguous data that shows the mass distribution is dominated by an unseen, spherical halo. ... Perhaps only galaxies with extended dark matter halos are capable of retaining large gaseous extents? . ... Clusters of Galaxies: . ... The case of the Cancer cluster: . ... Below is the velocity distribution of galaxies in the Cancer cluster: . ... What's going on in Cancer? ...

... Let be a random deviate which follows a Poissonian probability distribution about the expectation value . Although the Poisson distribution itself is only defined for integer , one can find the following continuous `envelope function' to the Poisson values: . ... where is the gamma function . ... The expectation value of is . ... Equation 5 is used both in the present program and in boxdetect to estimate the null-hypothesis probability distribution of the weighted sum of Poissonian images. ...

. The elementary methods (that is, the use of real analysis vs. complex analysis) have a long history from Chebyshev to modern times. They lead to great achievements, due to Erdos, Selberg, Bombieri, etc. I recently started a thorough study of these methods, in order to understand their scope. In the talk, I will give a quick survey of this field, and some new observations. Go to the Laboratoire Poncelet home page. Site design by Paul Zinn-Justin

... Bojan Nikolic web pages (r. 329) . ... The new document explaining how to get and run the code: Using casata (i.e., how to get it without revision control!) ... casata is a thin layer on top of CASA which implements commonly used procedures for analysis of data from aperture array telescopes at radio frequencies. ... One way to think of casata is as a CASA data reduction script but with an attempt at careful software engineering. ... Contributing to casata . ... casata: CASA Tools for Analysis . ...

... SHORT TERM PREDICTION OF POWER SOLAR FLARES FROM SSRT DATA . The algorithm for short term prediction of powerful solar flares, based on SSRT data, includes microwave emission characteristics in total and polarized flux, the structure of active region (AR) magnetic field at the photospheric level, and H a patrol data. ... During this period, 7 AR's crossed the solar disk, in which 20 flares of importance ? ... Data on AR's and magnetic fields were received from the Sayan observatory by teletype. ...

The radial distribution of metallicity of star-forming galaxies in a galaxy cluster can inform us about the mass assembly and enrichment history of the galaxy cluster. ... Both galaxy clusters are cool-core clusters at redshift z т?? ... The gas-phase metallicity of star- forming galaxies in MACS1115+01 exhibit anti-correlation with projected distance т??0.15 ТБ 0.08 dex/Mpc, whereas the radial metallicity distribution of RXJ1532+30 is statistically flat (т??0.09 ТБ 0.12 dex/Mpc). ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Mati†иre noire : une observation d†йfie les astronomes . ... A la une . ... En effet, selon les mod†иles th†йoriques, les concentrations de mati†иre noire sont les lieux o†µ naissent les galaxies. ... Une mati†иre noire au comportement ordinaire ? ... Etat du ciel . ...

. Merging cluster DLSCL J0916.2+2951 and its three matter components. Overlaid on the Hubble Space Telescope (HST) color image of the galaxies is the total mass distribution (blue) based on WL analysis of the HST images and the cluster gas distribution (red) based on Chandra X-ray observations. The bulk of the collisional gas is located between the two collisionless galaxy and mass concentrations, indicative of a dissociative merger.

... Public . Science . ... Science Users Information Science Software ESO-MIDAS jump to navigation jump to content . ... Publications with ESO Data . ... ESO-MIDAS . ... The short statement of the GNU license is included in every MIDAS file; the full text is included as a separate file in the ESO-MIDAS Release. ... Manual pages,installation guides and other documentation are generally released together with the source code and can also be obtained from the ESO-MIDAS ftp account (see below). ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... AIA 304 ? ... bottom) images (colour table reversed) of a coronal hole region at the South Pole taken on 14 May 2010. ... In the present work we derive a Differential Emission Measure (DEM) distribution from a region dominated by spicules. ... This distribution is then used to study the thermal properties of the emission contributing to the 171 ? ... From our off-limb DEM we found that the radiance in the AIA 171 ? ...