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An ALMA view of the...
An ALMA view of the post-AGB object HD 101584
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- Olofsson, Hans, 1952 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Vlemmings, Wouter, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Maercker, Matthias, 1979 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Humphreys, E. (författare)
- European Southern Observatory (ESO)
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- Lindqvist, Michael, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nyman, L. (författare)
- Atacama Large Millimeter-submillimeter Array (ALMA)
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- Ramstedt, S. (författare)
- Uppsala universitet,Uppsala University
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(creator_code:org_t)
- 2016-08-08
- 2016
- Engelska.
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Ingår i: Journal of Physics: Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 728:4
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- ALMA cycles 1 and 3 observations of CO isotopologues and 1.3mm continuum are used in a study of the circumstellar environment of the binary HD 101584, a post-AGB star and a low-mass companion that is most likely a post-common-envelope-evolution system. These data are supplemented with new information from OH maser emission. It is inferred that the large- scale circumstellar medium has a bipolar hour-glass structure, seen almost pole-on, formed by an energetic, ≥ 150 km s-1, jet. Significant amount of material still resides in the central region. It is proposed that the circumstellar morphology is related to an event which took place ≤ 500 yr ago, possibly a capture event where the companion spiralled in towards the AGB star. Several observed features remain to be explained, and may hint to a more complicated scenario.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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