A carbon-rich hot bubble in the planetary nebula NGC 5189

Abstract

We present the discovery of extended X-ray emission from the planetary nebula (PN) NGC 5189 around the [WO1]-type WD 1330-657 with XMM-Newton. The X-ray-emitting gas fills the cavities detected in the Hubble Space Telescope [O III] narrow-band image and presents a limb-brightened morphology towards the outer edges of the east and west lobes. The bulk of the X-ray emission is detected in the soft (0.3 - 0.7 keV) band with the XMM-Newton EPIC spectra dominated by the C VI Ly$\alpha$ line at 0.37 keV (=33.7 Å). Spectral analysis resulted in carbon and neon abundances 38 and 6 times their solar values, with a plasma temperature of $kT=0.14\pm 0.01$ keV ($T=1.6\times 10^6$ K) and X-ray luminosity of $L_{\mathrm{X}}=(2.8\pm 0.8)\times 10^{32}$ erg s${}^{-1}$. NGC 5189 is an evolved and extended PN ($\lesssim$0.70 pc in radius), thus, we suggest that the origin of its X-ray emission is consistent with the born-again scenario in which the central star becomes carbon-rich through an eruptive very late thermal pulse, subsequently developing a fast, carbon-rich wind powering the X-ray emission as suggested for A30 and A78.

arXiv comment9 pages; 5 figures and 1 table; Accepted to ApJ

References in corpus (33)

• On the Absorption of X-rays in the Interstellar Medium
• Accretion in common envelope evolution
• Chandra Reveals the X-ray Glint in the Cat's Eye
• The Chandra X-ray Survey of Planetary Nebulae (ChanPlaNS): Probing Binarity, Magnetic Fields, and Wind Collisions
• Physical conditions in the planetary nebula Abell 30
• New evolutionary calculations for the Born Again scenario
• Chandra X-ray Observatory Detection of Extended X-ray Emission from the Planetary Nebula BD+303639
• The Chandra Planetary Nebulae Survey (ChanPlaNS): III. X-ray Emission from the Central Stars of Planetary Nebulae
• Analysis of Far-UV Data of Central Stars of Planetary Nebulae: Occurrence and Variability of Stellar Winds
• The hydrogen-deficient knot of the `born again' planetary nebula Abell 58 (V605 Aql)
• ROSAT observations of X-ray emission from planetary nebulae
• The Chandra Planetary Nebula Survey (ChanPlaNS). II. X-ray Emission from Compact Planetary Nebulae
• X-ray Emission from the Binary Central Stars of the Planetary Nebulae HFG 1, DS 1, and LoTr 5
• A radial velocity survey for post-common-envelope Wolf-Rayet central stars of planetary nebulae: First results and discovery of the close binary nucleus of NGC 5189
• Analysis of chemical abundances in planetary nebulae with [WC] central stars. II. Chemical abundances and the abundance discrepancy factor
• Analysis of chemical abundances in planetary nebulae with [WC] central stars. I. Line intensities and physical conditions
• Formation and X-ray Emission from Hot Bubbles in Planetary Nebulae. II. Hot bubble X-ray emission
• On the Luminosities and Temperatures of Extended X-ray Emission from Planetary Nebulae
• XMM-Newton Detection of Hot Gas in the Eskimo Nebula: Shocked Stellar Wind or Collimated Outflows?
• Serendipitous Chandra X-ray Detection of a Hot Bubble within the Planetary Nebula NGC 5315
• On the X-ray temperature of hot gas in diffuse nebulae
• Diffuse X-ray Emission from Planetary Nebulae with Nebular O VI
• The X-Ray Spectrum of a Planetary Nebula at High Resolution: Chandra Gratings Spectroscopy of BD+30 3639
• X-ray Imaging of Planetary Nebulae with Wolf-Rayet-type Central Stars: Detection of the Hot Bubble in NGC 40
• Planetary Nebulae distances in GAIA DR2
• The X-ray catalog of spectroscopically identified Galactic O stars: Investigating the dependence of X-ray luminosity on stellar and wind parameters
• Expansion of hydrogen-poor knots in the born-again planetary nebulae A30 and A78
• V605 Aquilae: a born again star, a nova or both?
• The born-again planetary nebula A78: an X-ray twin of A30
• X-Ray Emission from Jet-Wind Interaction in Planetary Nebulae
• UV spectral analysis of very hot H-deficient [WCE]-type central stars of planetary nebulae: NGC 2867, NGC 5189, NGC 6905, Pb 6, and Sand 3
• Mapping Excitation in the Inner Regions of the Planetary Nebula NGC 5189 using HST WFC3 Imaging
• Hidden IR structures in NGC 40: signpost of an ancient born-again event

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