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Chemical abundances of planetary nebulae towards the galactic anticenter
| Content Provider | Semantic Scholar |
|---|---|
| Author | Costa, Roberto D. D. Uchida, M. M. M. Maciel, Walter J. |
| Copyright Year | 2004 |
| Abstract | In this paper we report new observations and derive chemical abundances for a sample of 26 planetary nebulae (PN) located in the anticenter direction. Most of these nebulae are far away objects, located at galactocentric distances greater than about 8 kpc, so that they are particularly useful for the determination of the radial gradients at large distances from the galactic center. A comparison of the present results with previously determined abundances suggests that the radial abundance gradients flatten out at distances larger than about 10 kpc from the center. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.astro.iag.usp.br/~maciel/research/articles/art97.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/astro-ph/0405018v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Atmosphere, planetary Distance Gradient Large Nebulae (computer) Physical object Planetary scanner Radial (radio) Radial tree |
| Content Type | Text |
| Resource Type | Article |
