تقرير
The San Pedro M\'artir Planetary Nebula Kinematic Catalogue: Extragalactic Planetary Nebulae
| العنوان: | The San Pedro M\'artir Planetary Nebula Kinematic Catalogue: Extragalactic Planetary Nebulae |
|---|---|
| المؤلفون: | Richer, M. G., López, J. A., Díaz-Méndez, E., Riesgo, H., Báez, S. -H., García-Díaz, Ma. -T., Meaburn, J., Clark, D. M., Olvera, R. M. Calderón, Soto, G. López, Rebolo, O. Toledano |
| سنة النشر: | 2010 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Cosmology and Extragalactic Astrophysics, Astrophysics - Galaxy Astrophysics |
| الوصف: | 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$. The internal kinematics of bright planetary nebulae do not depend strongly upon the metallicity or age of their progenitor stellar populations, though small systematic differences exist. The nebular kinematics and H$\beta$ 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. Comment: Accepted for publication in the October 2010 issue of the Revista Mexicana de Astronom\'ia y Astrof\'isica |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1004.3996 |
| رقم الأكسشن: | edsarx.1004.3996 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |