Next: Results Up: High Resolution Measurements from Previous: Introduction . The first step in PSA is to Fourier transform the image and calculate the square modulus of the FT to generate the power spectrum, . ... Specifically, one excludes the very lowest frequencies where the large scale nonuniformities in the image have the greatest effect, and one limits the fit to a frequency range where the SNR is sufficiently high. ...

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. column 2: Right ascension for epoch B1950. column 3: Declination for epoch B1950. ... The spectra of all emission-line galaxies are shown in the Appendix A. The results of line flux measurements are given in Table 4. ... column 1: The object's IAU-type name with the prefix HS. column 2: Observed flux (in 10 -16 ergs -1 cm -2 ) of the H 4861 ? ...

... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

The following files list line and continuum emissivities from the Arcetri Spectral Code. ... Ne = 10^8 g-zipped file (phot cm^3 s^-1); Ne = 10^8 g-zipped file (erg cm^3 s-1) . ... File format (html): File format for the continuum files . ... File format (html): File format for binned line emission files The following files list transitions whose emissivities have values greater than a fixed amount (10^-19 phot s^-1 cm^+3 and 10^-30 erg s^-1 cm^+3 respectively): . ...

Next: Auto quotient Up: ATNF Spectral Analysis Package Previous: Reader object . In the following section, a simple data reduction to form a quotient spectrum of a single source is followed. ... Auto quotient . Separate reference and source observations . Make the quotient spectra . Time average separate scans . ... Auto-baselining . Average the polarisations . ... Frequency Frame Alignment . Malte Marquarding 2005-11-30 ...

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. ...

... Team . ... GRB mini-workshop 2006 . ... Our study of GRB fields in optical range efforts to shed light on the progenitor problem and it is naturally splitting into two directions. The first one is study of GRB OT via follow-up observations, while the second way is investigation of GRB host galaxies. ... The first stage consists in observational data acquision, the second one yields estimates of GRB OT characteristics and its host galaxy parameters. ... Do GRB hosts differ from field galaxies? ...

... AAS 225 . AAS 223 . AAS 221 . ... In this graph I show how the number of friends and followers of users were distributed for the AAS 225 tweets. ... Total number of tweets , of which were made by the following accounts (the cut off to appear is tweets): . ... This is an experimental (i.e. it looks a bit naff) look at whether tweeting about AAS 225 changes your follower count; I got the idea after a conversation with @peterdedmonds about how tweeting about talks can change your follower count. ...

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 . ...

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" . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 21, 1999 . Follow The Spots . Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA . ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... About APOD > . ...

Astronomy Picture of the Day . ... Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA Explanation: The Sun rotates on its axis about once every 27 days. ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... Publications with keywords: Sun - solar rotation - sunspot . Publications with words: Sun - solar rotation - sunspot . ...

... The database contains data of magnetic field observations obtained in the following observatories: Central astronomical observatory ( GAO ) , Crimean astrophysical observatory ( KrAO ) , Institute of terrestrial magnetism and radiowave propagation of Siberian division of RAS (Irkutsk) ( SibIZMIR ) , Institute of terrestrial magnetism and radiowave propagation (Troitsk) ( IZMIRAN ) , Shemacha astrophysical observatory of Azerbajanian AS ( ... GAO IZMIRAN SibIZMIR KrAO UsAO UrAO ShAO . ...

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 17/08 Kyoto streets. Maruyama park . Up . << Prev . The procedure is as follows: put a coin into special box, pull a cord (the bells will chime), clap hands and bow. Don't forget to tell god about your wishes. You see the woman at the left in the end of the prayer. Next >> . Photo album generated by album from Dave's MarginalHacks on Wed Jun 5 20:38:35 2013 .

2600) of EBs, roughly 100 of which have been followed up and for which reliable masses, radii, and spectral types have been obtained (Torres et al. 2010). ... To improve constraints on theories of stellar evolution at the low-mass end, we have proposed to use ARCES and DIS (in high-resolution mode) at APO to obtain radial velocity measurements and metallicities for an EB system in the Kepler field containing two K dwarfs. ... REFERENCES: Torres, G., Andersen, J., Gimenez, A. 2010, AAPR, 18, 67 ...

... solar system . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . ... Observe the Solar System . ... Tour the Solar System . ... Do the paths of totality during solar eclipses follow a pattern that repeats after a certain period? ... RELATED TOPICS: SOLAR ECLIPSE . Total eclipses follow a period known as the saros, which is 18 years and 11 1/3 days long. ... Get instant access to subscriber content on Astronomy.com! ... Join Astronomy for America's 2017 total solar eclipse! ...

... A preliminary analysis shows that the definition of a common format for spectra is a big challenge. ... Survey among Spectral Data Providers and Consumers 339 · Elodie: 25000 extracted Echelle spectra , resolution 42000, 4000 - 6800 ° on the fly processing options available: wavelength resampling, flux A calibration etc., total volume 50 - 100 GB · ESO/ST-ECF, 250000+ observations taken with 14 spectrographs in UV, optical, near IR; archive is rapidly growing · HEASARC: Variety of ...

... 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 ...

. You can also use the find command to find a file and then carry out a command on that file. To do this use the command: find pathname -name filename -print -exec command {}\; . To be prompted for confirmation before the command is executed use the command: find pathname -name filename -print -ok command {}\; . The command must be followed by a \ (backslash) and a ; (semi-colon). The {} (pair of braces) substitute the pathname of the file that is found as an argument to the command. Examples .