The origin and evolution of the extremely metal-poor halo planetary nebulae

被引：0
作者：
Otsuka, M. [1 ]
Izurniura, H. [1 ]
Tajitsu, A. [2 ]
Hyung, S. [3 ]
机构：
[1] Natl Inst Nat Sci, Natl Astron Observ Japan, Okayama Astrophys Observ, 3037-5 Ooaza Honjyo, Kamogatacho, Okayama 7190232, Japan
[2] Subaru Teleseope NAOJ, Hilo, HI 96720 USA
[3] Chungbuk Natl Univ, Sch Sci Educ Astron, Chungbuk 361763, South Korea
来源：
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES | 2008年 / 1016卷
关键词：
ISM : planetary nebulae; ISM : abundances; stars : Population II;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present recent results of our research on the extremely metal-poor ([Fe/H] similar to -2) halo planetary nebulae (PNe), K 648, BoBn 1, and H 4-1. Chemical abundance analysis using Subaru/HDS spectra and archive data shows that these halo PNe might have evolved from carbon-enhanced metal-poor (CEMP) stars. In BoBn 1, we have detected two fluorine lines and found enhanced fluorine abundance, [F/H] = +1.1. The [C,N,F/Fe] abundances of BoBn 1 are comparable to those of the CEMP-s star, HE1305+0132 ([Fe/H] = -2.5). BoBn 1 might have evolved from a CEMP-s star such as HE1305+0132 in the origin and evolution.
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页码：427 / +
页数：2
相关论文
共 8 条
[1]   The discovery and analysis of very metal-poor stars in the Galaxy [J].
Beers, TC ;
Christlieb, N .
ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 2005, 43 :531-580
[2]  
Fujimoto M. Y., 2000, APJ, V529, P25
[3]   Very low-metallicity massive stars: Pre-SN evolution models and primary nitrogen production [J].
Hirschi, R. .
ASTRONOMY & ASTROPHYSICS, 2007, 461 (02) :571-U21
[4]   Carbon-rich extremely metal poor stars: signatures of Population III asymptotic giant branch stars in binary systems [J].
Lau, Herbert H. B. ;
Stancliffe, Richard J. ;
Tout, Christopher A. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 378 (02) :563-568
[5]   Reaction rate uncertainties and the production of 19F in asymptotic giant branch stars [J].
Lugaro, M ;
Ugalde, C ;
Karakas, AI ;
Görres, J ;
Wiescher, M ;
Lattanzio, JC ;
Cannon, RC .
ASTROPHYSICAL JOURNAL, 2004, 615 (02) :934-946
[6]   On the origin of fluorine in the Milky Way [J].
Renda, A ;
Fenner, Y ;
Gibson, BK ;
Karakas, AI ;
Lattanzio, JC ;
Campbell, S ;
Chieffi, A ;
Cunha, K ;
Smith, VV .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 354 (02) :575-580
[7]   Fluorine in a carbon-enhanced metal-poor star [J].
Schuler, Simon C. ;
Cunha, Katia ;
Smith, Verne V. ;
Sivarani, Thirupathi ;
Beers, Timothy C. ;
Lee, Young Sun .
ASTROPHYSICAL JOURNAL, 2007, 667 (01) :L81-L84
[8]   Is HE 0107-5240 a primordial star? The characteristics of extremely metal-poor carbon-rich stars [J].
Suda, T ;
Aikawa, M ;
Machida, MN ;
Fujimoto, MY ;
Iben, I .
ASTROPHYSICAL JOURNAL, 2004, 611 (01) :476-493
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