142 citations · 649 across the 26 of their papers we have counts for
21 papers · 1 filter
The rotation and coma profiles of comet C/2004 Q2 (Machholz)
Maarten Reyniers, Pieter Degroote, Dennis Bodewits +2
Aims. Rotation periods of cometary nuclei are scarce, though important when studying the nature and origin of these objects. Our aim is to derive a rotation period for the nucleus…
A Spectroscopic and Photometric Study of the Metal-Poor, Pulsating, Post-AGB Binary HD 46703
Bruce J. Hrivnak, Hans Van Winckel, Maarten Reyniers +3
The metal-poor post-AGB star HD 46703 is shown to be a single-line spectroscopic binary with a period of 600 days, a high velocity of -94 km/s, and an orbital eccentricity of 0.3.…
Kinematics and H_2 morphology of the multipolar Post-AGB star IRAS 16594-4656
G. C. Van de Steene, T. Ueta, P. A. M. van Hoof +2
context: The spectrum of IRAS 16594-4656 shows shock excited H_2 emission and collisionally excited emission lines such as[O I],[C I],and [Fe II]. aim: The goal is to determine the…
Folding ion rays in comet C/2004 Q2 (Machholz) and the connection with the solar wind
P. Degroote, D. Bodewits, M. Reyniers
The appearance of folding ion rays in cometary comae is still not very well understood, so our aim is to gain more insight into the role of the local solar wind in the formation of…
Stellar population synthesis of post-AGB stars: the s-process in MACHO47.2496.8
A. Bonacic Marinovic, M. Lugaro, M. Reyniers +1
The low-metallicity RV Tauri star MACHO47.2496.8, recently discovered in the Large Magellanic Cloud, is highly enriched in carbon and heavy elements produced by the slow neutron ca…
IRAS08281-4850 and IRAS14325-6428: two A-type post-AGB stars with s-process enrichment
M. Reyniers, G. C. Van de Steene, P. A. M. van Hoof +1
One of the puzzling findings in the study of the chemical evolution of (post-)AGB stars is why very similar stars (in terms of metallicity, spectral type, infrared properties, etc.…