33 citations · 74 across the 5 of their papers we have counts for
9 papers
H fluxes and extinction distances for planetary nebulae in the IPHAS survey of the Northern Galactic Plane
Thavisha E. Dharmawardena, M. J. Barlow, J. E. Drew +7
We report H filter photometry for 197 northern hemisphere planetary nebulae (PNe) obtained using imaging data from the IPHAS survey. H+[N II] fluxes were measured for 46 conf…
Systematic errors in dust mass determinations: Insights from laboratory opacity measurements
Lapo Fanciullo, Francisca Kemper, Peter Scicluna +2
The thermal emission of dust is one of the most important tracers of the interstellar medium: multi-wavelength photometry in the far-infrared (FIR) and submillimeter (submm) can be…
Betelgeuse fainter in the sub-millimetre too: an analysis of JCMT and APEX monitoring during the recent optical minimum
Thavisha E. Dharmawardena, Steve Mairs, Peter Scicluna +5
Betelgeuse is the nearest Red Supergiant star and it underwent an unusually deep minimum at optical wavelengths during its most recent pulsation cycle. We present submillimetre obs…
Studies of Evolved Stars in the Next Decade: EAO Submillimetre Futures White Paper Series, 2019
Peter Scicluna, Hiroko Shinnaga, Jonathan Marshall +8
This white paper discusses recent progress in the field of evolved stars, primarily highlighting the contributions of the James Clerk Maxwell Telescope. It discusses the ongoing pr…
The Nearby Evolved Stars Survey: I. JCMT/SCUBA-2 Sub-millimetre detection of the detached shell of U Antliae
Thavisha E. Dharmawardena, Francisca Kemper, Sundar Srinivasan +24
We present the highest resolution single-dish submillimetre observations of the detached shell source U Antliae to date. The observations were obtained at $450~\micron$ and $850~\m…
The Sub-mm Variability of IRC+10216 and Ceti
Thavisha E. Dharmawardena, Francisca Kemper, Jan G. A. Wouterloot +3
We present the sub-mm variability of two of the most well studied AGB stars, IRC+10216 and Ceti. The data are obtained at $450~\micron$ and $850~\micron$ as part of pointing ca…