Disk evaporation in a planetary nebula

Abstract

We study the Galactic bulge planetary nebula M 2-29 (for which a 3-year eclipse event of the central star has been attributed to a dust disk) using HST imaging and VLT spectroscopy, both long-slit and integral field. The central cavity of M 2-29 is filled with a decreasing, slow wind. An inner high density core is detected, with radius less than 250 AU, interpreted as a rotating gas/dust disk with a bipolar disk wind. The evaporating disk is argued to be the source of the slow wind. The central star is a source of a very fast wind (1000 km/s). An outer, partial ring is seen in the equatorial plane, expanding at 12 km/s. The azimuthal asymmetry is attributed to mass-loss modulation by an eccentric binary. M 2-29 presents a crucial point in disk evolution, where ionization causes the gas to be lost, leaving a low-mass dust disk behind.

11 pages, accepted for publication in "Astronomy and Astrophysics"

References in corpus (35)

• The Milky Way in Molecular Clouds: A New Complete CO Survey
• A gaseous metal disk around a white dwarf
• The Origin and Shaping of Planetary Nebulae: Putting the Binary Hypothesis to the Test
• Low-Mass Binary Induced Outflows from Asymptotic Giant Branch Stars
• Keplerian discs around post-AGB stars: a common phenomenon?
• HIPASS High-Velocity Clouds: Properties of the Compact and Extended Populations
• Binary Planetary Nebulae Nuclei towards the Galactic Bulge. I. Sample Discovery, Period Distribution and Binary Fraction
• Double Core Evolution X. Through the Envelope Ejection Phase
• A Debris Disk around the Central Star of the Helix Nebula?
• The interaction of planetary nebulae and their AGB progenitors with the interstellar medium
• The White Dwarfs within 20 Parsecs of the Sun: Kinematics and Statistics
• [NeII] emission line profiles from photoevaporative disc winds
• The dynamical evolution of the circumstellar gas around low-and intermediate-mass stars I: the AGB
• A Dusty Component to the Gaseous Debris Disk around the White Dwarf SDSS J1228+1040
• Kinematical structure of the circumstellar environments of galactic B[e]-type stars
• The dust disk of HR4049
• CaII and NaI absorption signatures from extraplanar gas in the halo of the Milky Way
• Planetary nebulae with emission-line central stars
• Departure from Axisymmetry in Planetary Nebulae
• Dust-grain processing in circumbinary discs around evolved binaries. The RV Tauri spectral twins RU Cen and AC Her
• A silicate disk in the heart of the Ant
• A disc in the heart of the Ant nebula
• A close look into the carbon disk at the core of the planetary nebula CPD-568032
• The onset of photoionization in Sakurai's Object (V4334 Sgr)
• Spitzer Observations of the Oldest White Dwarfs in the Solar Neighborhood
• Discovery of an edge-on dust disk around the [WC10] central star CPD-568032
• Evidence for binarity in the bipolar planetary nebulae A79, He2-428 and M1-91
• Dust mass-loss rates from AGB stars in the Fornax and Sagittarius dwarf Spheroidal galaxies
• Mz 3, a Multipolar Nebula in the Making
• The He II Fowler lines and the O III and N III Bowen fluorescence lines in the symbiotic nova RR Tel
• An occultation event in a triple post-AGB star
• High-velocity regions in planetary nebulae
• Optical line profiles of the Helix planetary nebula (NGC 7293) to large radii
• 8-13um Dust Emission Features in Galactic Bulge Planetary Nebulae
• The Galactic Bulge: A Review

Cited by in corpus (12)

• Symbiotic stars and other Halpha emission line stars towards the Galactic Bulge
• A hydrodynamical study of multiple-shell planetary nebulae. III. Expansion properties and internal kinematics: Theory versus observation
• Planetary nebulae that cannot be explained by binary systems
• The influence of binarity on dust obscuration events in the planetary nebula M 2-29 and its analogues
• Warm gas in the rotating disk of the Red Rectangle: accurate models of molecular line emission
• Resolved imaging of the AR Puppis circumbinary disk
• Herschel Planetary Nebula Survey (HerPlaNS): Hydrogen Recombination Laser Lines in Mz 3
• Zinc abundances of planetary nebulae
• The planetary nebula nature and properties of IRAS18197-1118
• Current Unsolved Problems in Planetary Nebulae Research
• Low velocity streams inside the planetary nebula H 2-18. A 3D photoionization and kinematical reconstruction
• Observing Compact Disks Inside Pre-Planetary Nebulae with the Very Large Telescope Interferometer