Surendiranath, R. ; Kameswara Rao, N. ; Ram Sagar, ; Nathan, J. S. ; Ghosh, K. K. (1990) CCD photometry in VRI bands of the galactic cluster NGC 2818 Journal of Astrophysics and Astronomy, 11 (2). pp. 151-166. ISSN 0250-6335
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Official URL: http://www.ias.ac.in/jarch/jaa/11/151-166.pdf
Related URL: http://dx.doi.org/10.1007/BF02715014
Abstract
The open cluster NGC 2818 containing a planetary nebula has been observed in VRI bands using the CCD system at prime focus of the 2.3- metre Vainu Bappu Telescope. The study extending to stars V ~ 21 magnitude establishes the distance modulus as (m-M)0 = 12.9 ±0.1 for the cluster. Based on the fitting of theoretical isochrones computed for solar metallicity, an age of 5(±1) × 108 years has been assigned to the cluster. Association of the planetary nebula with the cluster indicates that the progenitor mass of the planetary nebula on the main sequence is ≥2.5M⊙.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Open Clusters; VRI Photometry; Planetary Nebulae; Stellar Evolution; Open Clusters; Individual: NGC 2818 |
| ID Code: | 65276 |
| Deposited On: | 17 Oct 2011 03:39 |
| Last Modified: | 18 May 2016 13:21 |
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