11 Result(s)
within
Conference Paper
J. Meaburn
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Chapter and Conference Paper
Deep Optical Imaging of ESO 383–45: A Galaxy Undergoing Ram-pressure Strip**, or a Tidal Merger Remnant?
We present deep Schmidt plate and CCD images of ESO 383–45, an S0 galaxy in A3565 which possesses an extended halo and system of filaments. We discuss whether these structures may be formed by gravitational in...
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Chapter and Conference Paper
BVRI Photometric Analysis for the Galaxy Group NGC 4410
The interacting group of galaxies NGC 4410 is a peculiar group of twelve galaxies with velocity in the range of 6900-7500 km s−1 [7] with four components in obvious interaction: NGC 4410 A-D (Fig. 1).
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Chapter and Conference Paper
The Global Motions of the Cometary Knots in the Helix Planetary Nebula (NGC 7293)
The nature and origin of the hundreds of ionized knots, with cometary tails, in the Helix planetary nebula are both being unravelled by recent observations. Healey and Huggins (1990, AJ, 100, 511), Meaburn et ...
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Chapter and Conference Paper
The Kinematics of the Extensive Bipolar Lobes and Symmetric Knots of the Planetary Nebula KjPn 8 (PK 112-001)
Spatially resolved profiles of the Hα, and [NII] lines have been obtained with the Manchester echelle spectrometer combined with the 2.1 m San Pedro Märtir telescope over the bipolar lobes, the symmetric low i...
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Chapter and Conference Paper
The Dramatic Kinematics of the Hydrogen Deficient Planetary Nebula Abell 30
The remarkable velocity structure of the different components of the hydrogen deficient planetary nebula Abell 30 have been revealed for the first time by obtaining spatially resolved profiles of the [O III] 5...
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Chapter and Conference Paper
Circumstellar Matter in The Symbiotic Binary CH Cyg During its Current Outburst
We present optical high-resolution spectroscopy and UBV photometry of the symbiotic binary CH Cyg during the current outburst which began in 1992 February.
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Chapter and Conference Paper
Smoke Rings Around Supernova 1987A
Detailed observations of the [O iii]5007 Å emission from the elliptical rings around SN 1987A suggest a model wherein the two faint, outer rings are due to emission from two circular toroids moving outwards (at ≤...
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Chapter and Conference Paper
Circumstellar Shocks
The presence of shocks in a wide variety of circumstellar phenomena will be illustrated and discussed.
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Chapter and Conference Paper
Echelle Measurements of the Expansion Velocities of the Faint Giant Haloes of Planetary Nebulae
The faint, giant haloes observed in many Planetary Nebulae (PNe) are believed to be the remnants of the superwinds ejected by the progenitor asymptotic giant branch stars. Spatially resolved, high spectral res...
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Chapter and Conference Paper
Co-ordinated optical and radio observations of symbiotic stars
We present preliminary results from absolutely flux-calibrated optical spectroscopy, together with 5 GHz radio flux measures of 17 symbiotic stars. The data were obtained quasi-simultaneously using the Manches...
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Chapter and Conference Paper
Recent optical observations of some evolved HII regions
A variety of recent optical observations of the HII regions in the MagellanicClouds, M42, M8, M16 and M17 are compared with observations of molecular complexes and thermal radio emission. It appears that all t...
