Single-dish monitoring of circumstellar water masers
6 pages. Contribution to a workshop held in Cagliari (I), Nov. 2001: "SRT: The Impact of Large Antennas on Radioastronomy and Space Science". Proceedings to be published as a special issue of the Publ.
Brand J., Baldacci L., Engels D.
openaire +3 more sources
Interferometric confirmation of "water fountain" candidates
Water fountain stars (WFs) are evolved objects with water masers tracing high-velocity jets (up to several hundreds of km s$^{-1}$). They could represent one of the first manifestations of collimated mass-loss in evolved objects and thus, be a key to ...
Bendjoya, Philippe +6 more
core +1 more source
The three-dimensional structure of a circumstellar maser
A 900-day observation of the line profile of the unusual 1667 MHz OH maser in the bipolar nebula OH 231.8+4.2 has indicated that it varies sinusoidally by a factor of about 3, with a period of 684 + or - 40 days. This is in agreement with recent IR observations. The phase of the variations varies strongly with velocity.
P. F. Bowers, M. Morris
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Interstellar nitrile anions: Detection of C<sub>3</sub>N<sup>-</sup> and C<sub>5</sub>N<sup>-</sup> in TMC-1. [PDF]
Cernicharo J +7 more
europepmc +1 more source
Astrometry of Water Maser Sources in Nearby Molecular Clouds with VERA - II. SVS 13 in NGC 1333
We report on the results of multi-epoch VLBI observations with VERA (VLBI Exploration of Radio Astrometry) of the 22 GHz H2O masers associated with the young stellar object SVS 13 in the NGC 1333 region.
Bushimata, Takeshi +27 more
core +1 more source
Detection of vibrationally excited HC<sub>7</sub>N and HC<sub>9</sub>N in IRC+10216 <sup>⋆</sup>. [PDF]
Pardo JR +10 more
europepmc +1 more source
The Maser Emitting Structure and Time Variability of the SIS Lines <i>J</i> = 14 - 13 and 15 - 14 in IRC+10216. [PDF]
Fonfría JP +10 more
europepmc +2 more sources
First VLBI mapping of circumstellar 29SiO maser emission
4 pages, 2 figures.
Soria-Ruiz, R. +5 more
openaire +2 more sources
SiO, <sup>29</sup>SiO, and <sup>30</sup>SiO emission from 67 oxygen-rich stars. A survey of 61 maser lines from 7 to 1 mm. [PDF]
Rizzo JR, Cernicharo J, Garoía-Miró C.
europepmc +1 more source
Formation and Evolution of Disks Around Young Stellar Objects. [PDF]
Zhao B +11 more
europepmc +1 more source

