| | |
| | |
Stat |
Members: 3643 Articles: 2'487'895 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
The San Pedro M'artir Planetary Nebula Kinematic Catalogue: Extragalactic Planetary Nebulae | M. G. Richer
; J. A. López
; E. Díaz-Méndez
; H. Riesgo
; S.-H. Báez
; Ma.-T. García-Díaz
; J. Meaburn
; D. M. Clark
; R. M. Calderón Olvera
; G. López Soto
; O. Toledano Rebolo
; | Date: |
22 Apr 2010 | Abstract: | We present kinematic data for 211 bright planetary nebulae in eleven Local
Group galaxies: M31 (137 PNe), M32 (13), M33 (33), Fornax (1), Sagittarius (3),
NGC 147 (2), NGC 185 (5), NGC 205 (9), NGC 6822 (5), Leo A (1), and Sextans A
(1). The data were acquired at the Observatorio Astron’omico Nacional in the
Sierra de San Pedro M’artir using the 2.1m telescope and the Manchester
Echelle Spectrometer in the light of [ion{O}{3}]$lambda$5007 at a resolution
of 11 km/s. A few objects were observed in H$alpha$. The internal kinematics
of bright planetary nebulae do not depend strongly upon the metallicity or age
of their progenitor stellar populations, though small systematic differences
exist. The nebular kinematics and H$eta$ luminosity require that the nebular
shells be accelerated during the early evolution of their central stars. Thus,
kinematics provides an additional argument favoring similar stellar progenitors
for bright planetary nebulae in all galaxies. | Source: | arXiv, 1004.3996 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |