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Ablation and wind mass-loading in the born-again planetary nebula A 30

  • We present XMM-Newton and Chandra observations of the born-again planetary nebula A 30. These X-ray observations reveal a bright unresolved source at the position of the central star whose X-ray luminosity exceeds by far the model expectations for photospheric emission and for shocks within the stellar wind. We suggest that a “born-again hot bubble” may be responsible for this X-ray emission. Diffuse X-ray emission associated with the petal-like features and one of the H-poor knots seen in the optical is also found. The weakened emission of carbon lines in the spectrum of the diffuse emission can be interpreted as the dilution of stellar wind by mass-loading or as the detection of material ejected during a very late thermal pulse.

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Author:Martín A. Guerrero, You-Hua Chu, Wolf-Rainer HamannORCiDGND, Lidia OskinovaORCiD, Detlef Schönberner, Helge TodtORCiD, Matthias Steffen, Nieves Ruiz, Robert A. Gruendl, William P. Blair
Parent Title (English):Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
Series (Serial Number):Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (563)
Document Type:Postprint
Date of first Publication:2019/01/31
Year of Completion:2011
Publishing Institution:Universität Potsdam
Release Date:2019/01/31
Tag:X-rays: ISM; planetary nebulae: individual (A 30)
Source:Proceedings of the International Astronomical Union 283 (2011), pp. 378–379 DOI 10.1017/S1743921312011519
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Peer Review:Referiert
Publication Way:Open Access
Grantor:Cambridge University Press (CUP)
Licence (German):License LogoKeine Nutzungslizenz vergeben - es gilt das deutsche Urheberrecht