VLBI observations of the two SiO maser lines from MU Cephei

Details VLBI observations of the two SiO maser lines from MU Cephei VLBI observations of the two SiO maser lines from MU Cephei

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44l.259m&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 44, no. 6, p. L259-L262.

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4

Cepheid Variables, Interstellar Masers, Line Spectra, Silicon Oxides, Very Long Base Interferometry, Emission Spectra, Standard Deviation, Water Masers

Scientific paper

VLBI observations of two SiO maser lines, namely the v = 1 and v = 2, J = 1-0, have been made with the Kashima 34-m and the Nobeyama 45-m radio telescopes. These stations provide a 197-km baseline that is suitable for observing SiO masers. We found that the same velocity components of v = 1 and v = 2 have the same positions around Mu Cephei. This suggests that the pump mechanism is by infrared photons from an H2O line, which could have astrometric applications.

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