Science Archives Publication System

EXOSAT observations of supernova remnants.

Bibcode: 1986Obs...106...10S

Smith, A.

1986 • The Observatory

Exosat 0

Serendipitous EXOSAT sources in the field of the Coma cluster.

Bibcode: 1986Obs...106...10B

Branduardi-Raymont, G.

1986 • The Observatory

Exosat 0

The properties of the central star of NGC 6543.

Bibcode: 1986CRJS....8...69B

Grewing, M.; Bianchi, L.; Cerrato, S.

The nucleus of NGC 6543 has been classified as a WR+Of star. From low dispersion ultraviolet spectra taken with the IUE, the authors determined its temperature (T = 80,000K) and luminosity (log L/L_sun; = 4.18). High solution spectra, also taken with the IUE, were used to study in detail the mass loss from the nucleus. The wind velocity was found …

1986 • Comptes Rendus sur les Journees de Strasbourg

IUE 0

A Preliminary Comparison of Halley Dust and Meteoritic Materials

Bibcode: 1986Metic..21..416K

Grün, E.; Hornung, K.; Kissel, J. +15 more

1986 • Meteoritics

Giotto 0

UV spectra of late-type stars and of representative solar features

Bibcode: 1986AdSpR...6h..77C

Pallavicini, R.; Cerruti Sola, M.; Cheng, C. C.

The authors compare low-resolution short-wavelength IUE spectra of solar-type stars with high-resolution spatially-resolved Skylab spectra of individual solar features (quiet region, plage, flare). The comparison is used to obtain insights into the magnetic activity of stars.

1986 • Advances in Space Research

IUE 0

Serendipitous EXOSAT Sources in the Field of the Coma Cluster

Bibcode: 1986Obs...106...10R

Raymont, G. Branduardi

1986 • The Observatory

Exosat 0

Broad emission features in QSOs and active galactic nuclei. II. New observations and theory of Fe II and HI emission.

DOI: 10.1086/162767 Bibcode: 1985ApJ...288...94W

Netzer, H.; Wills, B. J.; Wills, D.

Seven QSOs of low to intermediate redshift are characterized on the basis of: 320-850-nm spectra obtained with the UVITS spectrograph and image-dissector scanner at the f/9 Cassegrain focus of the 2.7-m reflecting telescope at McDonald Observatory; improved model calculations for the Fe II, Mg II, and Balmer lines and the Balmer continuum; and the…

1985 • The Astrophysical Journal

IUE 537

The visible and infrared extinction law and the gas-to-dust ratio in the Small Magellanic Cloud.

Bibcode: 1985A&A...149..330B

Bouchet, P.; Lequeux, J.; Prevot, L. +2 more

Photometric observations in the UBVJHK bands have been made for 23 O-B3 stars in the Small Magellanic Cloud, for which the MK spectral type and luminosity class have been determined. Also derived from these data are the extinction curve in the visible and the near-infrared. This curve is very close to the curves in the Galaxy and the Large Magella…

1985 • Astronomy and Astrophysics

IUE 339

The nucleus of M 82 at radio and X-ray bands : discovery of a new radio population of supernova candidates.

DOI: 10.1086/163108 Bibcode: 1985ApJ...291..693K

Kronberg, P. P.; Biermann, P.; Schwab, F. R.

Detailed VLA radio maps are presented of the continuum radio emission in M82 and the X-ray emission from the HRI of the Einstein X-ray satellite. The authors have discovered more than 40 new radio sources within 300 pc of M82's nucleus. It is argued that nearly all of these sources are radio supernovae or supernova remnants and their radio luminos…

1985 • The Astrophysical Journal

Exosat 338

EXOSAT observations of a strong soft X-ray excess in MKN 841.

DOI: 10.1093/mnras/217.1.105 Bibcode: 1985MNRAS.217..105A

Culhane, J. L.; Fabian, A. C.; Branduardi-Raymont, G. +6 more

EXOSAT observations of the spectrum of the Seyfert 1 galaxy MKN 841 show that it is well-fitted by a power law of photon index 1.6, similar to that of other Seyferts, and a large additional soft component. The X-ray luminosity over the observed band exceeds 4×10⁴⁴erg s^-1. A single-temperature blackbody fit to the soft X-rays …

1985 • Monthly Notices of the Royal Astronomical Society

Exosat 303