5 papers · 1 filter
Searching for the Precursors of Life in External Galaxies
B. Lawton, C. W. Churchill, B. A. York +5
Are the organic molecules crucial for life on Earth abundant in early-epoch galaxies? To address this, we searched for organic molecules in extragalactic sources via their absorpti…
The water ice rich surface of (145453) 2005 RR43: a case for a carbon-depleted population of TNOs?
N. Pinilla-Alonso, J. Licandro, R. Gil-Hutton +1
Recent results suggest that there is a group of TNOs (2003 EL61 being the biggest member), with surfaces composed of almost pure water ice and with very similar orbital elements. W…
Detailed spectroscopic analysis of the Trapezium cluster stars inside the Orion nebula
S. Simon-Diaz, A. Herrero, C. Esteban +1
We present the results of a spectroscopic analysis of the Trapezium cluster stars inside the Orion Nebula. The rotational velocities have been obtained using Fourier analysis metho…
Roche tomography of cataclysmic variables -- II. Images of the secondary stars in AM Her, QQ Vul, IP Peg and HU Aqr
C. A. Watson, V. S. Dhillon, R. G. M. Rutten +1
We present a set of Roche tomography reconstructions of the secondary stars in the cataclysmic variables AM Her, QQ Vul, IP Peg and HU Aqr. The image reconstructions show distinct…
Spectra of planetary nebulae in NGC 5128 (Centaurus-A)
J. R. Walsh, N. A. Walton, G. H. Jacoby +1
Low dispersion spectra have been obtained of five planetary nebulae in the elliptical galaxy NGC 5128 (Centaurus-A) from the catalogue of Hui et al. (1993). The planetary nebulae (…