2000AJ....119.1839G

Query : 2000AJ....119.1839G

2000AJ....119.1839G - Astron. J., 119, 1839-1847 (2000/April-0)

Elemental abundances in evolved supergiants. II. The young clusters h and χ Persei.

GONZALEZ G. and WALLERSTEIN G.

Abstract (from CDS):

We report on the results of our analyses of high-quality spectra of M supergiants in the h and χ Persei double cluster. Our temperature estimates range from 3500 to 4000 K for a sample of 14 stars. There is a wide range in the lithium abundances, from [Li/Fe]=-1.7 to [Li/Fe]=-0.10. The ¹²C/¹³C ratio ranges from 10 to 16 and displays a weak trend with luminosity, such that the more luminous stars have a slightly smaller ratio. We find a significant excess of Na, which may be due to its production by proton capture by ²²Ne. However, there is no evidence for the O deficiency that usually accompanies a Na excess in globular cluster stars.

Abstract Copyright: ∼

Journal keyword(s): Stars: Abundances - Stars: AGB and Post-AGB - Stars: Chemically Peculiar

Simbad objects: 21

Full paper

View the references in ADS

Number of rows : 21

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	NAME SMC	G	00 52 38.0	-72 48 01		2.79	2.2			~	12317	1
2	NGC 330	Cl*	00 56 18.55	-72 27 45.1	9.37	9.76	9.55		8.89	~	445	0
3	HD 236947	*	02 07 12.0545484072	+58 47 15.904117248	13.11	10.82	8.63	6.78	5.26	M2III	53	0
4	V* KK Per	s*r	02 10 15.7846748496	+56 33 32.663347416	12.32	9.96	7.74	5.86	4.29	M2Iab-Ib	108	0
5	NGC 869	OpC	02 18 57.0	+57 08 02						~	504	0
6	V* T Per	s*r	02 19 21.8771659920	+58 57 40.345527636	13.40	10.78	8.45	6.58	4.94	M2Iab	111	0
7	V* V605 Cas	s*r	02 20 22.4632763112	+59 40 16.904099784	13.41	10.80	8.36	6.42	4.85	M2Iab	73	0
8	V* AD Per	s*r	02 20 29.0035384536	+56 59 35.239755912	12.70	10.16	7.8490		7.1111	M3Iab	129	1
9	V* FZ Per	s*r	02 20 59.6455018656	+57 09 29.964294288	12.75	10.20	7.9620		6.7185	M1Iab	119	0
10	V* PR Per	s*r	02 21 42.4097766240	+57 51 46.144950588	12.84	10.31	8.00	6.13	4.60	M1-Iab-Ib	122	0
11	V* SU Per	s*r	02 22 06.8948309496	+56 36 14.893650072	13.86	11.57	9.40			M3-M4Iab	151	0
12	NGC 884	OpC	02 22 15.7	+57 08 59						~	503	0
13	V* RS Per	s*r	02 22 24.2955658080	+57 06 34.102933812	12.37	10.09	8.7680			M3.5IabFe-1	148	0
14	V* S Per	s*r	02 22 51.7113133056	+58 35 11.422774248	13.22	10.55	7.90			M4.5-7Iae	388	0
15	V* V439 Per	s*r	02 23 11.0656487832	+57 11 57.984565452	12.81	10.41	8.1650		6.8612	M0.5Iab	83	0
16	V* V403 Per	s*r	02 23 24.1101297168	+57 12 43.045313724	13.32	10.81	8.4020	6.67	5.21	M0Iab	70	0
17	V* V441 Per	s*r	02 25 21.8607402192	+57 26 14.130487320	13.07	10.61	8.22	6.09	4.29	M3Iab	86	0
18	V* YZ Per	s*r	02 38 25.4198516592	+57 02 46.194337896	14.96	12.37	10.01			M1Iab	102	0
19	NGC 3201	GlC	10 17 36.82	-46 24 44.9						~	1001	0
20	* alf Boo	RG*	14 15 39.67207	+19 10 56.6730	2.46	1.18	-0.05	-1.03	-1.68	K1.5IIIFe-0.5	2417	1
21	* alf Lyr	dS*	18 36 56.33635	+38 47 01.2802	0.03	0.03	0.03	0.07	0.10	A0V	2787	1

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