The symbiotic and bipolar nebula M2-9: Morphological variability of the collimated ionized wind arising from the core

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Fältnamn	Indikatorer	Metadata
000		03587naa a2200433 4500
001		oai:research.chalmers.se:4148d770-4ffe-4b70-9f74-f54757783e1c
003		SwePub
008		220520s2022 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://research.chalmers.se/publication/5304262 URI
024	7	a https://doi.org/10.1093/pasj/psac0202 DOI
040		a (SwePub)cth
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a de la Fuente, Eduardou University of Tokyo, Japan,Universidad de Guadalajara,University of Guadalajara4 aut
245	1 0	a The symbiotic and bipolar nebula M2-9: Morphological variability of the collimated ionized wind arising from the core
264		c 2022-05-03
264	1	b Oxford University Press (OUP),c 2022
520		a We studied the central region of bipolar nebula M 2-9 using radio-continuum observations obtained from the Jansky Very Large Array (JVLA) and the Atacama Large Millimeter Array (ALMA) interferometers. This work presents new images at similar to 43 GHz (similar to 7.0 mm) and similar to 345 GHz (similar to 0.9 mm) with angular resolutions of similar to 0 ''.047 and 0 ''.09, respectively. The continuum emission at similar to 43 GHz shows an elongated jet-like structure perpendicular to the similar to 345 GHz observation. We conclude that both emissions could correspond to tracing an isothermal collimated fast wind with constant expansion velocity and being driven by the circumstellar ring traced by ALMA. Although this configuration has been discussed within the scope of planetary nebulae models, there is a remarkable fact: the collimated fast wind shows morphological spatial variability. This supports the idea of a symbiotic binary system within the innermost part of M 2-9, which would be composed of a white dwarf and an AGB star. The latter could explain the mirror symmetry observed at larger scales due to their orbital motion.
650	7	a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe
650	7	a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng
650	7	a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650	7	a NATURVETENSKAPx Fysikx Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe
650	7	a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng
653		a planetary nebulae: individual (Minkowski 2-9)
653		a HII regions
653		a methods: data analysis
653		a ISM: jets and outflows
653		a planetary nebulae: general
700	1	a Trinidad, Miguel A.u Universidad de Guanajuato4 aut
700	1	a Tafoya, Daniel,d 1981u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)tafoya
700	1	a Toledano-Juarez, Ivanu Universidad de Guadalajara,University of Guadalajara4 aut
700	1	a Garcia-Flores, Samuelu Universidad de Guadalajara,University of Guadalajara4 aut
710	2	a University of Tokyo, Japanb Universidad de Guadalajara4 org
773	0	t Publication of the Astronomical Society of Japand : Oxford University Press (OUP)g 74:3, s. 594-601q 74:3<594-601x 2053-051Xx 0004-6264
856	4 8	u https://research.chalmers.se/publication/530426
856	4 8	u https://doi.org/10.1093/pasj/psac020

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