18.1k citations
- Instituto de Astrofísica de CanariasES252 papers
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- University of CambridgeGB123 papers
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- Centre National de la Recherche ScientifiqueFR93 papers
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30 papers · 1 filter
SW Sextantis in an excited, low state
Paul J Groot, Rene' G. M. Rutten, Jan van Paradijs
We present low-resolution spectrophotometric optical observations of the eclipsing nova-like cataclysmic variable SW Sex, the prototype of the SW Sex stars. We observed the system…
Ultraviolet Line Spectra of Metal-Poor Star-Forming Galaxies
Claus Leitherer, Joao Leao, Tim Heckman +3
We present synthetic ultraviolet spectra of metal-poor star-forming galaxies which were calculated with the Starburst99 package. A new spectral library was generated from HST obser…
Gas motions in the plane of the spiral galaxy NGC 3631
A. M. Fridman, O. V. Khoruzhii, E. V. Polyachenko +7
The velocity field of the nearly face-on galaxy NGC 3631, derived from observations in the H alpha line and the HI radio line, is analysed to study perturbations related to the spi…
Near-infrared spectroscopy of the circumnuclear star formation regions in M100: Evidence for sequential triggering
S. D. Ryder, J. H. Knapen, M. Takamiya
We present low resolution (R~450) K-band spectroscopy for 16 of the 43 circumnuclear star-forming knots in M100 identified by Ryder & Knapen (1999). We compare our measurements of…
Optical and Infrared Spectroscopy of the type IIn SN 1998S : Days 3-127
A. Fassia, W. P. S. Meikle, N. Chugai +14
We present contemporary infrared and optical spectroscopic observations of the type IIn SN 1998S for the period between 3 and 127 days after discovery. In the first week the spectr…
An investigation into the prominence of spiral galaxy bulges
Alister W. Graham
From a diameter-limited sample of 86 `face-on' spiral galaxies, the bulge-to-disk size and luminosity ratios, and other quantitative measurements for the prominence of the bulge ar…