47 citations · 252 across the 15 of their papers we have counts for
6 papers · 1 filter
Discovery of an HI Counterpart to the Extended Tail of Mira
L. D. Matthews, Y. Libert, E. Gerard +2
We report the detection of an HI counterpart to the extended, far-ultraviolet-emitting tail associated with the asymptotic giant branch star Mira (o Ceti). Using the Nancay Radio T…
The formation of a detached shell around the carbon star Y CVn
Y. Libert, E. Gerard, T. Le Bertre
Y CVn is a carbon star surrounded by a detached dust shell that has been imaged by the Infrared Space Observatory at 90 microns. With the Nancay Radio Telescope we have studied the…
EVN observations of an OH maser burst in OH17.7-2.0
M. Szymczak, A. Bartkiewicz, E. Gerard
We have observed the OH 1612-MHz maser emission towards the proto-planetary nebula candidate OH17.7-2.0 that underwent a very strong and unusual outburst in 2003. Phase-referencing…
Atomic hydrogen in AGB circumstellar environments. A case study: X Her
E. Gardan, E. Gerard, T. Le Bertre
We report the detection of the HI line at 21 cm from the circumstellar shell around the AGB star X Her using the position-switching technique with the Nancay Radio Telescope. At th…
Polarimetric observations of OH masers in proto-planetary nebulae
M. Szymczak, E. Gerard
The 1612 and 1667 MHz OH maser lines have been measured in all four Stokes parameters in 47 proto-planetary nebula (PPN) candidates. Out of 42 objects detected, 40 and 34 are 1612…
Multi-Wavelength Monitoring of GRS 1915+105
R. Bandyopadhyay, P. Martini, E. Gerard +5
Since its discovery in 1992, the superluminal X-ray transient GRS 1915+105 has been extensively observed in an attempt to understand its behaviour. We present here first results fr…