SIMBAD references

2001A&A...369L...1M - Astronomy and Astrophysics, volume 369, L1-4 (2001/4-1)

Discovery of a bipolar and highly variable mass outflow from the symbiotic binary StHalpha 190.

MUNARI U., TOMOV T., YUDIN B.F., MARRESE P.M., ZWITTER T., GRATTON R.G., BONANNO G., BRUNO P., CALI A., CLAUDI R.U., COSENTINO R., DESIDERA S., FARISATO G., MARTORANA G., MARINO G., REBESCHINI M., SCUDERI S. and TIMPANARO M.C.

Abstract (from CDS):

A highly and rapidly variable bipolar mass outflow from StHα 190 has been discovered, the first time in a yellow symbiotic star. Permitted emission lines are flanked by symmetrical jet features and multi-component P-Cyg profiles, with velocities up to 300km/s. Given the high orbital inclination of the binary, if the jets leave the system nearly perpendicular to the orbital plane, the de-projected velocity equals or exceeds the escape velocity (1000km/s). StHα 190 looks quite peculiar in many other respects: the hot component is an O-type sub-dwarf without an accretion disk or a veiling nebular continuum and the cool component is a G7 III star rotating at a spectacular 105km/s, unseen by a large margin in field G giants.

Abstract Copyright:

Journal keyword(s): binaries: symbiotic - stars: individual: StHα 190 - interstellar medium: jets and outflows

Simbad objects: 10

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2020.10.22-23:44:47

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