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Article: Tomography of the Unique Ongoing Jet in the Planetary Nebula NGC 2392

TitleTomography of the Unique Ongoing Jet in the Planetary Nebula NGC 2392
Authors
KeywordsStellar evolution
Planetary nebulae
Stellar jets
Issue Date2021
PublisherAmerican Astronomical Society, co-published with Institute of Physics Publishing, Inc. The Journal's web site is located at http://iopscience.iop.org/0004-637X/
Citation
The Astrophysical Journal, 2021, v. 909 n. 1, p. article no. 44 How to Cite?
AbstractJets (fast collimated outflows) are claimed to be the main shaping agent of the most asymmetric planetary nebulae (PNs), as they impinge on the circumstellar material at late stages of the asymptotic giant branch phase. The first jet detected in a PN was that of NGC 2392, yet there is no available image because of its low surface brightness contrast with the bright nebular emission. Here we take advantage of the tomographic capabilities of Gran Telescopio de Canarias Multi-Espectrografo en GTC de Alta Resolucion para Astronomia high-dispersion integral field spectroscopic observations of the jet in NGC 2392 to gain unprecedented details of its morphology and kinematics. The jet of NGC 2392 is found to emanate from the central star, break through the walls of the inner shell of this iconic PN and extend outside the nebula's outermost regions with an S-shaped morphology suggestive of precession. At odds with the fossil jets found in mature PNs, the jet in NGC 2392 is currently being collimated and launched. The high nebular excitation of NGC 2392, which implies an He++/He ionization fraction too high to be attributed to the known effective temperature of the star, has been proposed in the past to hint at the presence of a hot white dwarf companion. In conjunction with the hard X-ray emission from the central star, the present-day jet collimation would support the presence of such a double-degenerate system where one component undergoes accretion from a remnant circumbinary disk of the common envelope phase.
Persistent Identifierhttp://hdl.handle.net/10722/297642
ISSN
2023 Impact Factor: 4.8
2023 SCImago Journal Rankings: 1.905
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuerrero, MA-
dc.contributor.authorCazzoli, S-
dc.contributor.authorRechy-García, JS-
dc.contributor.authorRamos-Larios, G-
dc.contributor.authorMontoro-Molina, B-
dc.contributor.authorGómez-González, VMA-
dc.contributor.authorToalá, JA-
dc.contributor.authorFang, X-
dc.date.accessioned2021-03-23T04:19:48Z-
dc.date.available2021-03-23T04:19:48Z-
dc.date.issued2021-
dc.identifier.citationThe Astrophysical Journal, 2021, v. 909 n. 1, p. article no. 44-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/10722/297642-
dc.description.abstractJets (fast collimated outflows) are claimed to be the main shaping agent of the most asymmetric planetary nebulae (PNs), as they impinge on the circumstellar material at late stages of the asymptotic giant branch phase. The first jet detected in a PN was that of NGC 2392, yet there is no available image because of its low surface brightness contrast with the bright nebular emission. Here we take advantage of the tomographic capabilities of Gran Telescopio de Canarias Multi-Espectrografo en GTC de Alta Resolucion para Astronomia high-dispersion integral field spectroscopic observations of the jet in NGC 2392 to gain unprecedented details of its morphology and kinematics. The jet of NGC 2392 is found to emanate from the central star, break through the walls of the inner shell of this iconic PN and extend outside the nebula's outermost regions with an S-shaped morphology suggestive of precession. At odds with the fossil jets found in mature PNs, the jet in NGC 2392 is currently being collimated and launched. The high nebular excitation of NGC 2392, which implies an He++/He ionization fraction too high to be attributed to the known effective temperature of the star, has been proposed in the past to hint at the presence of a hot white dwarf companion. In conjunction with the hard X-ray emission from the central star, the present-day jet collimation would support the presence of such a double-degenerate system where one component undergoes accretion from a remnant circumbinary disk of the common envelope phase.-
dc.languageeng-
dc.publisherAmerican Astronomical Society, co-published with Institute of Physics Publishing, Inc. The Journal's web site is located at http://iopscience.iop.org/0004-637X/-
dc.relation.ispartofThe Astrophysical Journal-
dc.rightsThe Astrophysical Journal. Copyright © IOP Publishing.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI].-
dc.subjectStellar evolution-
dc.subjectPlanetary nebulae-
dc.subjectStellar jets-
dc.titleTomography of the Unique Ongoing Jet in the Planetary Nebula NGC 2392-
dc.typeArticle-
dc.identifier.emailFang, X: fangx@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3847/1538-4357/abe2aa-
dc.identifier.scopuseid_2-s2.0-85103202425-
dc.identifier.hkuros321901-
dc.identifier.volume909-
dc.identifier.issue1-
dc.identifier.spagearticle no. 44-
dc.identifier.epagearticle no. 44-
dc.identifier.isiWOS:000625540900001-
dc.publisher.placeUnited States-

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