143 citations · 2.2k across the 102 of their papers we have counts for
7 papers · 1 filter
Circumstellar envelopes of semi-regular long-period variables: mass-loss rate estimates and general model-fitting of the molecular gas
J. J. Díaz-Luis, J. Alcolea, V. Bujarrabal +4
We aim to study the main properties of a volume-limited unbiased sample of well-characterized semi-regular variables (SRs) in order to clarify important issues, such as the formati…
A rotating fast bipolar wind and disk system around the B[e]-type star MWC 922
C. Sánchez Contreras, A. Báez-Rubio, J. Alcolea +4
We present interferometric observations with the Atacama Large Millimeter Array (ALMA) of the free-free continuum and recombination line emission at 1 and 3mm of the "Red Square Ne…
Time variations of H2O and SiO masers in the proto-Planeatry Nebula OH231.8+4.2
J. Kim, S. -H. Cho, V. Bujarrabal +4
H2O (22 GHz) and SiO masers (43, 86, 129 GHz) in the bipolar proto-planetary nebula OH231.8+4.2 were simultaneously monitored using the 21-m antennas of the Korean VLBI Network in…
Resolving discrepancy in the pPN OH231.8+4.2
J. -F. Desmurs, J. Alcolea, M. Lindqvist +3
OH231.8+4.2 is an archetypal pre-planetary nebulae (pPN). It is a binary system surrounded by bipolar nebula. Some years ago the authors extensively studied it and performed severa…
A New Radio Molecular Line Survey of Planetary Nebulae: HNC/HCN as a Diagnostic of Ultraviolet Irradiation
Jesse Bublitz, Joel H. Kastner, Miguel Santander-García +3
Certain planetary nebulae contain shells, filaments, or globules of cold gas and dust whose heating and chemistry are likely driven by UV and X-ray emission from their central star…
Astro2020 Science White Paper: The fundamentals of outflows from evolved stars
E. De Beck, M. L. Boyer, V. Bujarrabal +16
Models of the chemical evolution of the interstellar medium, galaxies, and the Universe rely on our understanding of the amounts and chemical composition of the material returned b…