Two new evolved bipolar planetary nebulae in the solar neighbourhood
Identifieur interne : 009874 ( Main/Exploration ); précédent : 009873; suivant : 009875Two new evolved bipolar planetary nebulae in the solar neighbourhood
Auteurs : David J. Frew [Australie] ; Quentin A. Parker [Australie] ; Delphine Russeil [France]Source :
- Monthly Notices of the Royal Astronomical Society [ 0035-8711 ] ; 2006-11-01.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Absolute magnitude, Abundance, Accurate determination, Arbitrary units, Arcmin, Arcmin centred, Arcsec, Astronomical tools, Asymptotic giant branch, Available data, Available spectra, Balmer decrement, Better determination, Bipolar, Bipolar morphologies, Bipolar nebula, Bipolar nebulae, Bipolar type, Central star, Central stars, Centre, Centred, Chemical abundances, Coalsack nebula, Corradi, Corradi schwarz, Cspn, Deeper spectra, Diagnostic diagram, Different spectra, Diffuse emission, Dispersion direction, Dopita, Dopita meatheringham, Dust lanes, Electron temperature, Elemental abundances, Emission lines, Excellent agreement, Excitation, Excitation class, Extinction, Flair spectra, Frew, Frew parker, Galactic, Grating, HII regions, Helium zanstra temperature, Hot star, Huggins, Important addition, Individual distances, Iraf emsao package, Journal compilation, Kaler, Kaler jacoby, Kinematic, Kinematic distance, Kinematics, Large uncertainty, Line intensities, Lling factor, Lobe, Logarithmic extinction, Luminosity function, Main body, Massive progenitors, Mnras, Molecular emission, Molecular material, Morphology, Nearby type, Nebula, Nebulae figure, Nebular, Neckel vehrenberg, Nitrogen abundances, Optical spectrometry, Optical spectroscopy, Outer dimensions, Patrick woudt, Peculiar velocities, Peculiar velocity, Peimbert, Peimbert serrano, Planetary nebulae, Progenitor, Progenitor star, Quiescent region, Radial velocities, Reddening, Reddening distance, Reddening value, Russeil, Saao, Saao spectra, Saao spectrum, Shassa, Simbad data base, Slit length, Small sample, Solar neighborhood, Solar neighbourhood, Standard iraf routines, Standard kinematic distance, Supercosmos, Supercosmos data, Supercosmos pixel data, Surface brightness, Surface relation, Survey image, Uxes, Zanstra, Zanstra temperatures.
- Teeft :
- Absolute magnitude, Accurate determination, Arbitrary units, Arcmin, Arcmin centred, Arcsec, Astronomical tools, Available data, Available spectra, Balmer decrement, Better determination, Bipolar, Bipolar morphologies, Bipolar nebulae, Bipolar type, Central star, Central stars, Centre, Centred, Chemical abundances, Coalsack nebula, Corradi, Corradi schwarz, Cspn, Deeper spectra, Diagnostic diagram, Different spectra, Diffuse emission, Dispersion direction, Dopita, Dopita meatheringham, Dust lanes, Electron temperature, Elemental abundances, Emission lines, Excellent agreement, Excitation, Excitation class, Extinction, Flair spectra, Frew, Frew parker, Galactic, Grating, Helium zanstra temperature, Huggins, Important addition, Individual distances, Iraf emsao package, Journal compilation, Kaler, Kaler jacoby, Kinematic, Kinematic distance, Large uncertainty, Line intensities, Lling factor, Lobe, Logarithmic extinction, Luminosity function, Main body, Massive progenitors, Mnras, Molecular emission, Molecular material, Morphology, Nearby type, Nebula, Nebulae figure, Nebular, Neckel vehrenberg, Nitrogen abundances, Optical spectroscopy, Outer dimensions, Patrick woudt, Peculiar velocities, Peculiar velocity, Peimbert, Peimbert serrano, Planetary nebulae, Progenitor, Progenitor star, Quiescent region, Radial velocities, Reddening, Reddening distance, Reddening value, Russeil, Saao, Saao spectra, Saao spectrum, Shassa, Simbad data base, Slit length, Small sample, Solar neighbourhood, Standard iraf routines, Standard kinematic distance, Supercosmos, Supercosmos data, Supercosmos pixel data, Surface brightness, Surface relation, Survey image, Uxes, Zanstra, Zanstra temperatures.
Abstract
We present AAO/UKST Hα+[N ii] narrow‐band imagery and low‐ and medium‐resolution optical spectroscopy of RCW 24 and RCW 69. These nebulae were previously classified as H ii regions, but we now show them to be two of the largest and nearest bipolar Type I PNe yet discovered. Distances were estimated using extinction–distance and kinematic methods, and via a new Hα surface brightness–radius relation. The adopted distances are 1.0 ± 0.3 kpc for RCW 24 and 1.3 ± 0.2 kpc for RCW 69. Both objects have enhanced nitrogen abundances, with log N/O ≃ +0.44 for RCW 24, and log N/O = +0.33 for RCW 69. Systemic velocities and |z| distances are VLSR=+5 km s−1 and |z| ∼ 23 pc for RCW 24, and VLSR=−33 km s−1 and only |z| ∼ 7 pc for RCW 69. Both PNe originated from massive progenitors (>2.0–2.5 M⊙), as deduced from their chemical abundances, large ionized masses, small |z| distances, low peculiar velocities and relatively hot central stars. These two objects form an important addition to the small sample of evolved bipolar PNe in the solar neighbourhood.
Url:
- https://api.istex.fr/document/FE10798613DD7A0C05B4FEFA5B025358CA4E2783/fulltext/pdf
- https://api.istex.fr/document/A91FFEE1FA15FCB5044EE4BD7C2F83BE16A997F3/fulltext/pdf
DOI: 10.1111/j.1365-2966.2006.10898.x
Affiliations:
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Frew</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Physics, Macquarie University, NSW 2109</wicri:regionArea><wicri:noRegion>NSW 2109</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>E‐mail: Present address: Perth Observatory, 337 Walnut Road, Bickley, WA 6076</wicri:regionArea><wicri:noRegion>WA 6076</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Australie</country></affiliation></author><author><name sortKey="Parker, Quentin A" sort="Parker, Quentin A" uniqKey="Parker Q" first="Quentin A." last="Parker">Quentin A. 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Royal Astronomical Society</title><title level="j" type="alt">MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY</title><idno type="ISSN">0035-8711</idno><idno type="eISSN">1365-2966</idno><imprint><biblScope unit="vol">372</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="1081">1081</biblScope><biblScope unit="page" to="1092">1092</biblScope><biblScope unit="page-count">12</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2006-11-01">2006-11-01</date></imprint><idno type="ISSN">0035-8711</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0035-8711</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absolute magnitude</term><term>Abundance</term><term>Accurate determination</term><term>Arbitrary units</term><term>Arcmin</term><term>Arcmin centred</term><term>Arcsec</term><term>Astronomical tools</term><term>Asymptotic giant 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parker</term><term>Galactic</term><term>Grating</term><term>HII regions</term><term>Helium zanstra temperature</term><term>Hot star</term><term>Huggins</term><term>Important addition</term><term>Individual distances</term><term>Iraf emsao package</term><term>Journal compilation</term><term>Kaler</term><term>Kaler jacoby</term><term>Kinematic</term><term>Kinematic distance</term><term>Kinematics</term><term>Large uncertainty</term><term>Line intensities</term><term>Lling factor</term><term>Lobe</term><term>Logarithmic extinction</term><term>Luminosity function</term><term>Main body</term><term>Massive progenitors</term><term>Mnras</term><term>Molecular emission</term><term>Molecular material</term><term>Morphology</term><term>Nearby type</term><term>Nebula</term><term>Nebulae figure</term><term>Nebular</term><term>Neckel vehrenberg</term><term>Nitrogen abundances</term><term>Optical spectrometry</term><term>Optical spectroscopy</term><term>Outer dimensions</term><term>Patrick woudt</term><term>Peculiar velocities</term><term>Peculiar velocity</term><term>Peimbert</term><term>Peimbert serrano</term><term>Planetary nebulae</term><term>Progenitor</term><term>Progenitor star</term><term>Quiescent region</term><term>Radial velocities</term><term>Reddening</term><term>Reddening distance</term><term>Reddening value</term><term>Russeil</term><term>Saao</term><term>Saao spectra</term><term>Saao spectrum</term><term>Shassa</term><term>Simbad data base</term><term>Slit length</term><term>Small sample</term><term>Solar neighborhood</term><term>Solar neighbourhood</term><term>Standard iraf routines</term><term>Standard kinematic distance</term><term>Supercosmos</term><term>Supercosmos data</term><term>Supercosmos pixel data</term><term>Surface brightness</term><term>Surface relation</term><term>Survey image</term><term>Uxes</term><term>Zanstra</term><term>Zanstra temperatures</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Abondance</term><term>Branche géante asymptotique</term><term>Brillance surface</term><term>Cinématique</term><term>Etoile centrale</term><term>Etoile chaude</term><term>Nébuleuse bipolaire</term><term>Nébuleuse planétaire</term><term>Région HII</term><term>Spectrométrie optique</term><term>Voisinage solaire</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Absolute magnitude</term><term>Accurate determination</term><term>Arbitrary units</term><term>Arcmin</term><term>Arcmin centred</term><term>Arcsec</term><term>Astronomical tools</term><term>Available data</term><term>Available spectra</term><term>Balmer decrement</term><term>Better determination</term><term>Bipolar</term><term>Bipolar morphologies</term><term>Bipolar nebulae</term><term>Bipolar type</term><term>Central star</term><term>Central stars</term><term>Centre</term><term>Centred</term><term>Chemical abundances</term><term>Coalsack nebula</term><term>Corradi</term><term>Corradi schwarz</term><term>Cspn</term><term>Deeper spectra</term><term>Diagnostic diagram</term><term>Different spectra</term><term>Diffuse emission</term><term>Dispersion direction</term><term>Dopita</term><term>Dopita meatheringham</term><term>Dust lanes</term><term>Electron temperature</term><term>Elemental abundances</term><term>Emission lines</term><term>Excellent agreement</term><term>Excitation</term><term>Excitation class</term><term>Extinction</term><term>Flair spectra</term><term>Frew</term><term>Frew parker</term><term>Galactic</term><term>Grating</term><term>Helium zanstra temperature</term><term>Huggins</term><term>Important addition</term><term>Individual distances</term><term>Iraf emsao package</term><term>Journal compilation</term><term>Kaler</term><term>Kaler jacoby</term><term>Kinematic</term><term>Kinematic distance</term><term>Large uncertainty</term><term>Line intensities</term><term>Lling factor</term><term>Lobe</term><term>Logarithmic extinction</term><term>Luminosity function</term><term>Main body</term><term>Massive progenitors</term><term>Mnras</term><term>Molecular emission</term><term>Molecular material</term><term>Morphology</term><term>Nearby type</term><term>Nebula</term><term>Nebulae figure</term><term>Nebular</term><term>Neckel vehrenberg</term><term>Nitrogen abundances</term><term>Optical spectroscopy</term><term>Outer dimensions</term><term>Patrick woudt</term><term>Peculiar velocities</term><term>Peculiar velocity</term><term>Peimbert</term><term>Peimbert serrano</term><term>Planetary nebulae</term><term>Progenitor</term><term>Progenitor star</term><term>Quiescent region</term><term>Radial velocities</term><term>Reddening</term><term>Reddening distance</term><term>Reddening value</term><term>Russeil</term><term>Saao</term><term>Saao spectra</term><term>Saao spectrum</term><term>Shassa</term><term>Simbad data base</term><term>Slit length</term><term>Small sample</term><term>Solar neighbourhood</term><term>Standard iraf routines</term><term>Standard kinematic distance</term><term>Supercosmos</term><term>Supercosmos data</term><term>Supercosmos pixel data</term><term>Surface brightness</term><term>Surface relation</term><term>Survey image</term><term>Uxes</term><term>Zanstra</term><term>Zanstra temperatures</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We present AAO/UKST Hα+[N ii] narrow‐band imagery and low‐ and medium‐resolution optical spectroscopy of RCW 24 and RCW 69. These nebulae were previously classified as H ii regions, but we now show them to be two of the largest and nearest bipolar Type I PNe yet discovered. Distances were estimated using extinction–distance and kinematic methods, and via a new Hα surface brightness–radius relation. The adopted distances are 1.0 ± 0.3 kpc for RCW 24 and 1.3 ± 0.2 kpc for RCW 69. Both objects have enhanced nitrogen abundances, with log N/O ≃ +0.44 for RCW 24, and log N/O = +0.33 for RCW 69. Systemic velocities and |z| distances are VLSR=+5 km s−1 and |z| ∼ 23 pc for RCW 24, and VLSR=−33 km s−1 and only |z| ∼ 7 pc for RCW 69. Both PNe originated from massive progenitors (>2.0–2.5 M⊙), as deduced from their chemical abundances, large ionized masses, small |z| distances, low peculiar velocities and relatively hot central stars. These two objects form an important addition to the small sample of evolved bipolar PNe in the solar neighbourhood.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Marseille</li></settlement></list><tree><country name="Australie"><noRegion><name sortKey="Frew, David J" sort="Frew, David J" uniqKey="Frew D" first="David J." last="Frew">David J. Frew</name></noRegion><name sortKey="Frew, David J" sort="Frew, David J" uniqKey="Frew D" first="David J." last="Frew">David J. Frew</name><name sortKey="Frew, David J" sort="Frew, David J" uniqKey="Frew D" first="David J." last="Frew">David J. Frew</name><name sortKey="Parker, Quentin A" sort="Parker, Quentin A" uniqKey="Parker Q" first="Quentin A." last="Parker">Quentin A. Parker</name><name sortKey="Parker, Quentin A" sort="Parker, Quentin A" uniqKey="Parker Q" first="Quentin A." last="Parker">Quentin A. Parker</name></country><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Russeil, Delphine" sort="Russeil, Delphine" uniqKey="Russeil D" first="Delphine" last="Russeil">Delphine Russeil</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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