EX Lup is the prototype of the EXor class of eruptive young stars. These objects show optical outbursts which are thought to be related to runaway accretion...
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PublicationThe 2008 Outburst of EX Lup—Silicate Crystals in Motion
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PublicationThe AG Carinae nebula: abundant evidence for a red supergiant progenitor?
AG Carinae is a massive, evolved supergiant which is thought to be in transition from an O star to a Wolf-Rayet (WR) star and is currently identified as a...
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PublicationThe age of the carina young association and potential membership of HD 95086
Carina is a nearby young stellar association. So far, only a small number of stars have been clearly identified as members of this association. In this paper...
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PublicationThe chemical composition of the post-asymptotic giant branch F supergiant CRL 2688
We present an analysis of a high-resolution (R ˜ 50 000) optical spectrum of the central region of the protoplanetary nebula CRL 2688. This object is thought to...
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PublicationThe circumstellar environment of IRAS 05327+3404
We continue our study of the young stellar object associated with IRAS 05327+3404. We have determined the spectral type of the central star to be K2. We show...
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PublicationThe circumstellar medium of the peculiar supernova SN1997ab
We report the detection of the slow-moving wind into which the compact supernova remnant SN 1997ab is expanding. Echelle spectroscopy provides clear evidence...
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PublicationThe Double Dust Envelopes of R Coronae Borealis Stars
The study of extended, cold dust envelopes surrounding R Coronae Borealis (RCB) stars began with their discovery by the Infrared Astronomical Satellite. RCB...
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PublicationThe effect of dust obscuration in RR Telescopii on optical and IR long-term photometry and Fe II emission lines
Aims.Infrared and optical photometric and spectroscopic observations of the symbiotic nova RR Tel are used to study the effects and properties of dust in...
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PublicationThe Formation of Fullerenes: Clues from New C60, C70, and (Possible) Planar C24 Detections in Magellanic Cloud Planetary Nebulae
We present 10 new Spitzer detections of fullerenes in Magellanic Cloud Planetary Nebulae, including the first extragalactic detections of the C70 molecule...