2005A&A...429.1051M

Query : 2005A&A...429.1051M

2005A&A...429.1051M - Astronomy and Astrophysics, volume 429, 1051-1055 (2005/1-3)

On the potassium-rotation connection in late-type Alpha Persei stars.

MARTIN E.L., MAGAZZU A., GARCIA LOPEZ R.J., RANDICH S. and BARRADO Y NAVASCUES D.

Abstract (from CDS):

We present measurements of the KI λ7699 line from spectra of 19 late-type members of the α Persei cluster obtained with the Intermediate Dispersion Spectrograph at the Isaac Newton Telescope. These stars span a narrow range of T_eff, from 5091K to 4771K, and a wide range of vsini values (9km/s-170km/s). For a given star, we find empirically that larger rotational broadening apparently increases the equivalent width of KI λ7699 linearly for vsini values from 15km/s to 75km/s. This correlation breaks down for vsini>75km/s. After correction for this effect, we show that the potassium line equivalent widths do not really correlate with vsini.

Abstract Copyright: ∼

Journal keyword(s): line: formation - stars: atmospheres - stars: abundances - stars: activity - stars: late-type - Galaxy: open clusters and associations: individual: alpha Per

Simbad objects: 21

Full paper

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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 - 2023	#notes
1	V* V523 Per	BY*	03 18 50.4642850824	+48 16 03.126543312		13.52				~	15	0
2	V* V525 Per	BY*	03 19 02.7579384576	+48 10 59.576839464		12.92				~	22	0
3	APX 1	X	03 20 52.8	+49 27 53						~	2	0
4	V* V625 Per	BY*	03 21 06.5121656188	+48 26 12.707831376		13.80	12.80		11.94	G9	23	0
5	Cl* Melotte 20 AP 106	*	03 22 40.9072841573	+49 40 41.342025815		13.91	12.88		12.06	~	16	0
6	* alf Per	V*	03 24 19.3700924	+49 51 40.245455	2.64	2.27	1.79			F5Ib	825	1
7	2MASS J03244348+4953130	Y*O	03 24 43.4915449920	+49 53 12.934976352		13.50	12.58			~	6	0
8	Cl* Melotte 20 AP 110	*	03 24 54.5	+49 25 52		14.19	12.27			G8	13	0
9	2MASS J03261265+4809088	Y*O	03 26 12.6488419354	+48 09 08.836461222		13.98	12.94		12.06	K0	18	0
10	2MASS J03261639+4850284	Y*O	03 26 16.4037441384	+48 50 28.378535208		13.57	12.61			~	24	0
11	V* V486 Per	BY*	03 26 27.6565713168	+49 02 12.376063176		13.81	12.84			~	28	0
12	Cl Melotte 20	OpC	03 26 28	+48 58.5						~	826	0
13	V* V487 Per	BY*	03 27 23.3200091938	+48 22 24.564083842		14.08	12.86	12.82		~	25	0
14	2MASS J03280080+4900009	Y*O	03 28 00.8006660448	+49 00 00.929251080		14.05	13.00		12.09	K0	20	0
15	V* V488 Per	BY*	03 28 18.6829779012	+48 39 48.191915231		13.83	12.83		11.95	K0	38	0
16	UCAC4 704-025023	*	03 28 21.8005034123	+50 36 05.892125738		13.15	12.26	12.04		K0	10	0
17	V* V630 Per	BY*	03 28 22.5413971680	+49 14 29.366325708		13.77	12.78		11.91	K0	20	0
18	APX 49A	*	03 28 54.3591109680	+47 29 20.257638504		13.74	12.75			~	2	0
19	V* V602 Per	Y*O	03 29 26.6996074080	+49 20 35.370816828		14.08	13.06			~	21	0
20	APX 59	X	03 30 33.6	+49 27 13						~	2	0
21	APX 72	X	03 33 30.9	+48 02 45						~	2	0

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