Infrared imaging and optical imaging and spectroscopy of (mostly) type I Planetary Nebulae. I.
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Universidad Nacional Autónoma de México
2001
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876473915787706368 |
|---|---|
| author | J. Bohigas |
| author_facet | J. Bohigas |
| contents | Infrared imaging and optical imaging and spectroscopy of (mostly) type I Planetary Nebulae. I. J. Bohigas Física, Astronomía y Matemáticas 53: SH 2{71) ISM: ABUNDANCES 72: M 1{41: M 2 PLANETARY NEBULAE ISM: INDIVIDUAL (BV 5{1:JNER 1: K 3 Optical spectra, images in the main optical emission lines and IR images directedtowards the detection of molecular hydrogen, were obtained for 14 planetarynebulae (PNe). It was found that nine of these comply with the two criteria defininga type I PNe (He-rich with a large N/O ratio). All of these objects are bipolar and,with the exception of Sh 2-71, show shocked molecular hydrogen. The chemicalcomposition of JnEr 1 indicates it was produced by a massive progenitor, and it canbe tentatively classified as a type I PN. A 26 is a helium rich elliptical with a lowN/O abundance ratio, probably without H2. Shocked H2 was found in K 3-92, anelliptical type IIb, which implies that this object is probably young. The chemicalcomposition of K 3-72, K 4-55, M 1-75, and Sh 2-71 indicate that third dredge-upepisodes occurred in their progenitor star. The temperatures and spectral propertiesof BV 5-1, K 4-55, M 1-41, M 1-75, and Sh 2-71 suggest the presence of shockwaves in their ionized component. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57137212 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.37 |
| format | Artículo científico |
| id | redalyc_57137212 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Infrared imaging and optical imaging and spectroscopy of (mostly) type I Planetary Nebulae. I. J. Bohigas Física, Astronomía y Matemáticas 53: SH 2{71) ISM: ABUNDANCES 72: M 1{41: M 2 PLANETARY NEBULAE ISM: INDIVIDUAL (BV 5{1:JNER 1: K 3 Infrared imaging and optical imaging and spectroscopy of (mostly) type I Planetary Nebulae. I. J. Bohigas Física, Astronomía y Matemáticas 53: SH 2{71) ISM: ABUNDANCES 72: M 1{41: M 2 PLANETARY NEBULAE ISM: INDIVIDUAL (BV 5{1:JNER 1: K 3 Optical spectra, images in the main optical emission lines and IR images directedtowards the detection of molecular hydrogen, were obtained for 14 planetarynebulae (PNe). It was found that nine of these comply with the two criteria defininga type I PNe (He-rich with a large N/O ratio). All of these objects are bipolar and,with the exception of Sh 2-71, show shocked molecular hydrogen. The chemicalcomposition of JnEr 1 indicates it was produced by a massive progenitor, and it canbe tentatively classified as a type I PN. A 26 is a helium rich elliptical with a lowN/O abundance ratio, probably without H2. Shocked H2 was found in K 3-92, anelliptical type IIb, which implies that this object is probably young. The chemicalcomposition of K 3-72, K 4-55, M 1-75, and Sh 2-71 indicate that third dredge-upepisodes occurred in their progenitor star. The temperatures and spectral propertiesof BV 5-1, K 4-55, M 1-41, M 1-75, and Sh 2-71 suggest the presence of shockwaves in their ionized component. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57137212 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.37 |
| title | Infrared imaging and optical imaging and spectroscopy of (mostly) type I Planetary Nebulae. I. |
| topic | Física, Astronomía y Matemáticas 53: SH 2{71) ISM: ABUNDANCES 72: M 1{41: M 2 PLANETARY NEBULAE ISM: INDIVIDUAL (BV 5{1:JNER 1: K 3 |
| url | https://www.redalyc.org/articulo.oa?id=57137212 |