These are very prominent absorption lines is most all galaxies. ... These pair of absorption lines will appear in all the spectra and they should be your principle source for determining the redshift. ... When this applet opens you will see an iconic representation of galaxies in the left hand side of the applet and a target area in the right side of the applet. ... Note: What you are doing in this excercise is identical to what Hubble did in the 1920's and you are using the same galaxies. ...

... This calibration approach is recommended when dealing with high frequency data from the old ATCA correlator, especially at 3mm wavelengths. ... The approach described here exploits the dual frequency bands that were available with the old correlator. ... Rather the current approach assumes that you have a single Miriad dataset containing bandpass calibrator, phase calibrator, flux density calibrator and program source. ... MFCAL . ... Input multi-source, dual-band dataset. select=source(1921-293) . ...

For solar wind dials without any explanatory text, see this page . ... There are three logs, one for each condition index ( K P , Solar Wind ,and NOAA/SEC .) ... More about the solar wind's recent behavior can be found on my Current Solar Wind Conditions page. ... Other items of interest include NOAA/SEC Current Conditions , my composite current Auroral Images page, Windows on the Universe: Space Weather , and Public Outreach Index, Department of Space Physics and Astronomy, Rice University . ...

Next: Case A: Up: No Title Previous: Introduction . Let us assume that two neutron stars with masses and are merging. The following state of the after-merging object is determined by the ratio of the resulting total mass and the Oppenheimer-Volkoff limit. ... Here and below we interpret the Oppenheimer-Volkoff limit not as the standard value derived for the cold equation of state of baryonic matter for a non-rotating neutron star, but as a modified one. ...

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

Next: Command summary Up: MIDAS utilities for Previous: Analysis in the . The following commands implement auxiliary utilities for time series analysis: . BAND/TSA -- . ... BAND/TSA may be used to find a reasonable guess for the frequency grid. ... Correlation length: The statistical evaluation of TSA results rests on the assumption that the noise in the data is white noise. ... The window should not be too narrow as it is also used for the determination of the continuum level. ...

Institute of Applied Astronomy Russian Academy of Sciences Method of Determining the Orbits of the Small Bodies in the Solar System Based on an Exhaustive Search of Orbital Planes Dmitrii Vavilov, Yurii Medvedev Introduction to the problem: Let we have n 3 positional observations of a body: points in time ( = 1, ) , right ascensions , and declinations . ... Determination of the orbit using the Gauss method of determining orbital elements based on two heliocentric positions and points in time. ...

Radiative losses have been determined by using the Arcetri Code line emissivities for each element calculated adopting a plasma electron density of 10 10 cm -3 . Each emissivity line is structured using the following format: An example from the Mg file (Phot cm 3 s -1 ) is given below: . ... Mail comments regarding interface to landi@poppeo.nrl.navy.mil Mail comments regarding spectrum data to mlandini@arcetri.astro.it, landi@poppeo.nrl.navy.mil ...

Next: *imcnts* - Radial Profile Up: Radial Profiles and Projections Previous: *tabplot* - Displaying a . ... Input a spatially blocked and energy filtered image from above and use with the background determined from the broad-band background map. cl xray xr xspatial xs imcnts addbkg=no # Do not add the background error Source image file : xdata$snr.qp Source region descripter: c 503 513 50 p 503 513 0 360 n=10 # circular region centered on point ...

... We study in this paper the effect of shock excitation of leaky and surface modes by the p-polarized electromagnetic wave incident on the rapidly ionized gaseous or solid layer. ... For example, if [pic] (solid density, multiple ionized plasma), the basic frequency [pic], [pic], [pic] we find, that the wavelength of leaky wave [pic] is in soft x rays band. ... If [pic] (low density gaseous plasma), the basic frequency [pic], [pic], [pic] we find, that the wavelength of leaky wave [pic] is in THz band...

... At 22:42:27 UT 26/07/09, the Burst Alert Telescope (BAT) on board of the SWIFT multi-wavelength space observatory triggered and located GRB 090726 gamma-ray burst event. ... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ...

... The Tikhonov regularized solution of the convolution equation ( 1 ) is the minimizer in of the regularization functional (Tikhonov 1977, Morozov 1984, Groetsch 1984): . ... The regularized solution , in a discrete set of equally spaced points of , is then the inverse discrete Fourier transform of . ... More precisely Therefore the Tikhonov regularized solution of equation ( 1 ) sought in a finite-dimensional span of sinc functions, is the solution on a discrete set of values of the problem . ...

... The following environment variables may be set by the user: . ... Determines the clobber behaviour. 0 implies that datasets may not be overridden, whilst 1 implies otherwise. ... The following settings are allowed: . ... 2, DAL . ... The DAL can write table columns (to the underlying FITS file) either in a column-by-column or a row-by-row fashion. The default behaviour is row-by-row, but setting the environment variable SAS_COLUMN_WISE ensures the column-by-column method is used. ...

... The default display type is Auto (ScanDisk ; adjusts to the current display). ... ScanTimeOut Determines whether ScanDisk should detect disk timeouts ; while performing a surface scan. ... Surface Determines whether ScanDisk will perform a surface scan: ; Never (Default) Does not perform a surface scan. ... The Prompt value causes ScanDisk to prompt you for a disk. ... The next five settings accept any of the following values: ; Prompt Causes ScanDisk to prompt you before fixing this problem. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Following the Martian Coastline . ... It seems scientists and laypeople alike have wondered for quite a long time whether or not water exists on Mars. ... A second reason we should determine the sites of ancient Martian seas is that if water once existed on Mars, it is possible that conditions for life obtained on the planet in the past and possibly even persist into the present. ...

... They were determined as a result of orbit improving on the base of all kinds of optical observations available in the catalog of observations of the Minor Planet Center on March 16, 2014 (radar observations have not been used at this stage). ... As the MPC orbits do not all were improved simultaneously with EMP orbits, only 383866 sets of elements were used for data comparison (for selected sets of elements process of improvement had started with the use of the same observations). ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... You Followed The Apology With The Same Foolish Insult . Forum List | Follow Ups | Post Message | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

... The variability of the spectrum of the optical component of the IR-source IRAS01005+7910 was discovered for the first time in the BTA spectra [1]. ... The spectral features include absorptions that form in near-photospheric layers, narrow envelope emissions, and emission-absorption profiles that form in photosphere-to-envelope transition layers (the wind). ... Discovery of spectral variation in the optical counterpart of IRAS01005+7910. ... Dashed line - envelope curve of all the SiII 5979 profiles ...

Next: DIRECT MASSES FOR BXCIR Up: EXTREME HELIUM STARS: PULSATION Previous: PULSATION PROPERTIES . As already indicated, V652Her is an important EHe star because its relatively short pulsation period and large amplitude pulsations allow its overall dimensions to be determined with high precision. ... Saio & Nomoto (1998) made the first successful models for the merger of two carbon-oxygen white dwarfs, and prompted Saio & Jeffery (2000) to attempt models for the merger of two helium white dwarfs. ...