95 citations · 130 across the 6 of their papers we have counts for
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Millimetre observations of the S-type AGB star Cygni: variability of the emission of the inner envelope
D. T. Hoai, J. M. Winters, P. T. Nhung +2
New observations are presented of millimetre line emissions of the circumstellar envelope (CSE) of AGB star Cygni using the recently upgraded NOEMA array. Cygni is an S-typ…
CO and HI emission from the circumstellar envelopes of some evolved stars
P. N. Diep, D. T. Hoai, P. T. Nhung +7
Studies of the CO and HI radio emission of some evolved stars are presented using data collected by the IRAM Plateau de Bure interferometer and Pico Veleta telescope, the Nançay Ra…
12CO emission from EP Aqr: Another example of an axi-symmetric AGB wind?
P. T. Nhung, D. T. Hoai, J. M. Winters +6
The CO(1-0) and (2-1) emission of the circumstellar envelope of the AGB star EP Aqr has been observed using the IRAM PdBI and the IRAM 30-m telescope. The line profiles reveal the…
Pure rotational spectra of TiO and TiO_2 in VY Canis Majoris
T. Kaminski, C. A. Gottlieb, K. M. Menten +7
We report the first detection of pure rotational transitions of TiO and TiO_2 at (sub-)millimeter wavelengths towards the red supergiant VY CMa. A rotational temperature, T_rot, of…
Circumstellar HI and CO around the carbon stars V1942 Sgr and V CrB
Y. Libert, E. Gerard, C. Thum +3
Context. The majority of stars that leave the main sequence are undergoing extensive mass loss, in particular during the asymptotic giant branch (AGB) phase of evolution. Observati…