Next: Accretion Disks with Up: StarsStellar Populations, Previous: Spectroscopic Analysis of . ... We present and discuss spatially resolved spectra of the accretion disk and the gas stream region as a function of distance from disk center, the spectrum of the uneclipsed light, and the radial temperature distribution in the ultraviolet. Keywords: Accretion disks, Cataclysmic variables . ... In this paper we report on the HST spectral mapping of the nova-like UX UMa. ...

... The MMT optical spectra of SBS 0335-052W were obtained on 1996 January 19 with the Red Channel of the MMT Spectrograph. ... The linear scale is 1 = 263 pc at the distance to SBS 0335-052W of 54.1 Mpc. ... In Table 1, the observed line intensities and intensities corrected for interstellar extinction for SBS 0335-052W are shown along with extinction coefficient C (H ), observed flux of the H emission line, the equivalent width EW (H ) and equivalent width of absorption Balmer hydrogen lines EW (abs)....

... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

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... Spectroscopy of Semiconductors and Dielectrics . ... Interband optical transitions and their optical properties. ... Excitons in crystals. ... Collective interaction effects in exciton and nonequilibrium high-density carrier system. ... Carrier spin and exciton optical orientation in semiconductors. ... Two-dimensional excitons in quantum wells and related quantum systems. €аState density in transverse magnetic field and effect of random potential fluctuation on one-particle spectrum shape. ...

... Flux density at 1 GHz (/Jy): 19 . ... Notes: This is the remnant of the SN of AD 1006. ... Optical: Filaments to the NW, with broad H component. ... Point sources: The background Schweizer Middleditch star is near the middle of the remnant. ... van den Bergh 1976, ApJ, 208, L17. Optical observations. ADS . ... X-ray spectroscopy. ... Schweizer & Middleditch 1980, ApJ, 241, 1039. ... Optical spectroscopy of the Schweizer Middleditch star. ... Optical spectroscopy. ... 2013, A&A, 552, A9. ...

XMM-Newton Science Analysis System Page: 1 rgsbkgmodel July 2, 2008 Abstract Compute a model background spectrum from RGS background templates 1 Instruments/Modes Instrument Mode RGS Spectroscopy 2 Use In the interactive environment. pipeline processing no interactive analysis yes 3 Description The aim of this package is to compute a model spectrum of the RGS background applicable to a given observation from a combination of observations of empty elds. ... Model background spectra (OGIP-compliant). ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... Astrophysics overview . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ...

... A1865 Date Received: 2004-Oct-01 15:40:31 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Spectroscopy Observation Category: Galactic Total Time Requested: 75 Hours Proposal Title: Further Studies of the HI Zeeman E ect in the Galactic CNM ABSTRACT: We request 75 hours of additional telescope time to supplement our galactic HI absorption line survey. ... Very high sensitivity is needed to study the magnetic eld in the CNM via the HI Zeeman e ect. ...

... As part of the Great Observatories Origins Deep Survey ( GOODS ), multi-object, optical to NIR spectroscopy in the Chandra Deep Field South (CDF-S) has been carried out, using the FORS2 instrument mounted at the Kueyen Unit Telescope of the VLT at ESO's Cerro Paranal Observatory, Chile. ... In this release we provide the full set of extracted 1-dimensional fits spectra in the GOODS/FORS2 survey (LP170.A-0788) and associated spectral previews and colour image cutouts (5"x5") for each target. ...

The large magnetic cloud caused by coronal mass ejection at the Sun on January 6, 1997 came to the Earth at early morning on January 10 and continue to interact with Earth's magnetosphere till January 11 (see for example home page of this event prepeared by Dr. M.Peredo http://www-istp.gsfc.nasa.gov/istp/cloud_jan97/event.html ). ... During the days discussed here INTERBALL-1 satellite was in the magnetosphere (MS) near its dusk flunk - see the Fig. 1 for compearing. ...

Next: Emission molecular bands Up: Optical spectrum of IRAS04296 Previous: Optical spectrum of IRAS04296 . We have obtained spectra of IRAS04296 with the CCD (1140 1170 pixels) equipped echelle spectrometer PFES mounted at the prime focus of the 6m telescope of SAO RAS (Panchuk et al. ... Figure: The IRAS04296+3429 spectrum near . Next: Emission molecular bands Up: Optical spectrum of IRAS04296 Previous: Optical spectrum of IRAS04296 Klochkova V.G. 12/20/1999 ...

... 2014: . Suppression of cooling by strong magnetic fields in white dwarf stars . ... 69, 439, 2014. Evidence of supercritical accretion in SS433 . ... We discovered a flat portion (white noise) in the power spectrum of SS433 due to an abrupt increase of the disk thickness in the supercritical region. ... Both the hard X-ray radiation and the visual light are seen reflected from the walls of the funnel that forms in the wind of the supercritical disk of SS433. ... Archive . ...

... Up: Iraf Packages . ... IRAF Group, NOAO 1 , PO Box 26732, Tucson, AZ 85726 . This paper describes a new IRAF spectroscopy exposure time calculator. ... SPTIME takes an input source spectrum, either a reference blackbody, power law, or a user spectrum, a background ``sky'', observing parameters such as exposure time, central wavelength, seeing, airmass, and moon phase, instrument parameters such as aperture sizes and detector binning, a description of the spectrograph, and desired output. ...

We have analyzed the UV continuum light curves of 2535 pixels obtained during fifteen separate observations of active regions with the Ultraviolet Spectrometer and Polarimeter (UVSP) on board the solar maximum mission in 1989. ... The distribution N(v), which describes the number of pixels having maximum power at frequency v, is strongly concentrated in the 2 - 5 mHz band with a distinct maximum at 3 - 3.5 mHz. ... No clear correlation is found between the maximum power and the count rate in a pixel. ...

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INTEGRAL observations of SS433 : new results Anatol Cherepashchuk Sternberg Astronomical Institute, Moscow University, Russia In collaboration with: Rashid Sunyaev ... Eleonora Antokhina, Nikolai Shakura, Darja Kosenko, Elena Seifina,Sergey Molkov (IKI) 1 Overview · Introduction · · · · Observations Analysis of hard X-ray spectra Analysis of hard X-ray eclipses Discussion and conclusions December 26, 2007 ...

... 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. ...

... To determine a lower limit to the sensitivity of current observations to measurements of NS surface temperatures, we have used data from the Einstein Slew Survey (Elvis et al. 1990) to establish temperature limits for 275 pulsars which received nonzero exposure during the survey. ... Filled squares correspond to pulsars actually detected in the survey data; the smaller symbols correspond to upper limits to the count rates. ... Click here for plot of x-ray data vs. cooling curves. ...

... Dept. for Astrometry & Space Geodynamics . ... Conferences . ... Borysenko S.A. A program to discover comets. ... 6th Open Young Scientists' Conference on Astronomy and Space Physics, April 27-30, 1999, Kyiv Borysenko S.A. First results of dynamical spectroscopy of comet Halley. ... 8th Open Young Scientists Conference on Astronomy and Space Physics, April, 2001, Kyiv Borysenko S.A. Solar activity in November-December 1985 and its effect on the fast variations in the spectral lines of comet Halley ....