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Monday, May 18, 2020 | History

5 edition of The ultraviolet IUE spectrum of B orionis found in the catalog.

The ultraviolet IUE spectrum of B orionis

L. Sapar

The ultraviolet IUE spectrum of B orionis

by L. Sapar

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  • 5 Currently reading

Published by Valgus in Tallinn .
Written in English

    Places:
  • Orion (Constellation)
    • Subjects:
    • IUE (Artificial satellite),
    • Stars -- Spectra -- Charts, diagrams, etc.,
    • Ultravuilet spectroscopy -- Charts, diagrams, etc.,
    • Orion (Constellation) -- Charts, diagrams, etc.

    • Edition Notes

      Other titlesUlʹtrafioletovyĭ spektr zvezdy [beta] Orionis.
      StatementL. Sapar and A. Sapar.
      SeriesTeated / W. Struve nimeline Tartu Astrofüüsika Observatoorium ;, nr. 99, Teated (W. Struve nimeline Tartu Astrofüüsika Observatoorium) ;, nr. 99.
      ContributionsSapar, A., W. Struve nimeline Tartu Astrofüüsika Observatoorium.
      Classifications
      LC ClassificationsQB883 .S35 1989
      The Physical Object
      Pagination85 p. :
      Number of Pages85
      ID Numbers
      Open LibraryOL1630516M
      ISBN 105440009663
      LC Control Number91179123

      The ultraviolet IUE spectrum of β Orionis (kaasautor L. Sapar). // Tartu Astrofüüsika Observatooriumi Teated 99 () Formation of spectral line profiles in stellar wind (kaasautor L. Sapar). // Tartu Astrofüüsika Observatooriumi Publikatsioonid 53 () A study of IUE ultraviolet spectrum of χ Orionis (kaasautor L. Sapar).   We compare Mid-Ultraviolet (MUV) spectra of Pluto taken over a period of 20 years by the International Ultraviolet Explorer, the HST-Faint Object Spectrograph, and the HST-Cosmic Origins extract Pluto-only spectra from the IUE data and associate them with corrected longitudes when necessary. Comparing them with HST spectra provides further evidence of temporal Cited by: 8.

      Within this program, the ultraviolet spectrum of V Ori was obtained with the International Ultraviolet Explorer (IUE) at the ESA Villafranca Tracking Station on September 26 in the low resolution mode in both the short and long wavelength ranges. In addition, we have retrieved from the IUE archive all the other low resolution UV. AN ultraviolet spectrum of the radio-quiet quasar Q–, redshift z = (ref. 1), detected with the International Ultraviolet Explorer (IUE) is reported here. The object was selected for Cited by: 5.

      The International Ultraviolet Explorer (IUE) satellite observed VV Cephei (M2 Iab+B?) over nearly a full year orbital period, but all the observations were obtained outside total of the chromospheric eclipse was the only portion of the eclipse observed by have examined all high‐resolution IUE spectra of VV Cephei and describe the spectrum and its by: 5. R.M. Goody, X. Huang, in Encyclopedia of Atmospheric Sciences (Second Edition), Continua. The visible and ultraviolet absorptions of O 3 and O 2 are the results of electronic transitions to unquantized upper states, and they show no line structure.. Between 8 and 13 μm is a translucent region in the water vapor spectrum in which the most important absorption is a continuum formed by far.


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The ultraviolet IUE spectrum of B orionis by L. Sapar Download PDF EPUB FB2

Abstract The authors present an atlas of the UV spectrum of β Ori, compiled on the basis of observations with the ultraviolet satellite IUE in the - Å range.

It is found that β Ori according to its observed spectrum corresponds to the theoretical catalogue of lines for the model with the effective temperature T eff = K and log. The application of the low-resolution UV spectrograms of S Cra, obtained by IUE, to the study of the UV spectrum of this extremely young object showed that both the observed UV line spectrum and the energy distribution can be at least qualitatively interpreted in terms of the protostar model of S CrA, derived from observations in the visible spectral : B.

Wolf, I. Appenzeller. The ultraviolet (IUE) spectrum shows a short wavelength cut off at ~ Angstroms typical of a B9-A0 star, with a rich absorption spectrum, which is thought to be produced in an optically thick stellar envelope or wind.

tion. The ultraviolet (IUE) spectrum shows a short wave-length cut o at ˘ A typical of a B9{A0 star, with a rich absorption spectrum, which is thought to be pro-duced in an optically thick stellar envelope or wind.

The A interstellarband strength is consistent with a mean Send o print requests to: C. Rossi, [email protected]?Cited by: 9. High resolution ultraviolet spectra of the B IVe star gamma Cas, obtained with International Ultraviolet Explorer The ultraviolet IUE spectrum of B orionis book show spectacular changes in the profiles of the resonance doublets of C4.

IUE and balloon spectral observations of mass loss from Beta Orionis: Authors: Bates, B.; Giaretta, D. L.; New observations are presented of the ultraviolet spectrum of Beta Ori which were obtained from the International Ultraviolet Explorer and from a high resolution, balloon-borne spectrograph.

The blue-shifted, high velocity components. Low dispersion IUE spectra have been obtained at primary and secondary minima, together with a high dispersion spectrum near maximum, for the eclipsing Algol-type IM Aurigae system.

The high dispersion spectrum of R CrB in the long wavelength obtained near its maximum with the International Ultraviolet Explorer shows the presence of chromospheric Mg II emission. IUE spectrum of the Fe II Å emission line “Note that the flux is plotted in units of erg/s/cm 2 /Å”.

Table 2. IUE data sets for α Orionis for Fe II & C II emission : M.R. Sanad. HCMM →. The International Ultraviolet Explorer (IUE) (a.k.a. Explorer 57) was an astronomical observatory satellite primarily designed to take ultraviolet spectra.

The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA).

The mission was first proposed in earlyby a group of scientists in the United Kingdom, and was Operator: NASA / ESA / SERC. We have identified a sample of 33 Sun-like stars observed by the International Ultraviolet Explorer (IUE) with the short-wavelength spectrographs that have ground-based detections of chromospheric Ca ii H+K activity.

Our objective is to determine if these observations can provide an estimate of the decrease in ultraviolet (UV) surface flux associated with a transition from a normal Cited by: 1. The ultraviolet spectrum The ultraviolet spectrum of V Ori was observed with IUE at many epochs within different programmes: July 31 and Octo April 17 and Septem and October The ultraviolet spectrum of V Ori is characterized by the presence of many absorption features, and by a sharp flux decrease shortwards of about Å (see Fig.

The present study of the local insterstellar medium toward the center of Loop I analyzes optical and UV spectra of nearby stars within the l = deg, b = deg area.

The analysis of the. Download: Download high-res image (KB) Download: Download full-size image Fig. spectrum of V Cyg with high flux (The flux is plotted in units of erg cm − 2 s − 1 Å − 1.). Download: Download high-res image (KB) Download: Download full-size image Fig.

spectrum of V Cyg with high flux (The flux is plotted in units of erg cm − 2 s − 1 Å − 1.)Cited by: 2. ABSTRACT. We have used low-resolution spectra from the International Ultraviolet Explorer (IUE) to look for periodicities in the ultraviolet Ñux from a Orionis. The total continuum Ñux for each observa-tion was integrated, producing longwave (È and shortwave (A)AÈ light curves.

The). IUE spectra of the Herbig Ae star UX Ori reveal the presence of large amplitude light and color changes, which are an extension to shorter wavelengths of the "blueing" effect seen in the optical.

At optical maximum the UV spectrum of UX Ori is dominated by heavy line blanketing from accreting circumstellar gas with velocities as high as +km/ by: 2. We present a spectroscopic study of Mg II k&h emission lines in the – Å region of 91 high res-olution IUE spectra of a Orionis obtained during the period – Absorption features in the ultraviolet spectrum of Saturn that have been associated with acetylene (C 2 H2) in the upper atmosphere were discovered using early IUE measurements.

Figure 3a displays the FUV geometric albedo of Saturn derived using a composite of. Abstract A survey of the A region in 49 spectra of types O3-B1 V, based upon IUE high-resolution data, is presented. Standard sequences of prominent spectral features are illustrated, and UV classification criteria are introduced.

And Ultraviolet is so exciting because of it, even though in regards to action, not very much happens for most of the book.I was still gripped, though, I couldn't get enough of this book.

There is a bit of a romance in the book, which is more of a sub-plot, but one that's intrinsically linked to the main plot/5(). Johnson H.R., Ake T.B., Eaton J.A. () Ultraviolet Spectra of N, R, and S Stars. In: Jaschek M., Keenan P.C. (eds) Cool Stars with Excesses of Heavy Elements. Astrophysics and Space Science Library (A Series of Books on the Recent Developments of Space Science and of General Geophysics and Astrophysics Published in Connection with the Author: Hollis R.

Johnson, Thomas B. Ake, Joel A. Eaton. Title: Ultraviolet Author: R.J. Anderson Genre: Young Adult, Speculative Fiction, Contemporary Publisher: Carolrhoda Lab (US) / Orchard Books (UK) Publication Date: September (US) / June (UK) Hardcover: pages “Once upon a time there was a girl who was special.

This is not her story. Unless you count the part where I killed her.” Sixteen-year-old Alison wakes up in a .We present the first double-lined spectroscopic orbital elements for the central binary in the massive triple δ Orionis A.

The solutions are based on fits of cross-correlation functions of IUE high-dispersion UV spectra and He I λ profiles. The orbital elements for the primary agree well with previous results, and in particular, we confirm the apsidal advance with a period of +/ by: