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 Teff, 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.

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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

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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 - 2024 		#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       ~ 24 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 28 0
5 Cl* Melotte 20 AP 106 * 03 22 40.9072841573 +49 40 41.342025815   13.91 12.88   12.06 ~ 19 0
6 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 833 1
7 2MASS J03244348+4953130 Y*O 03 24 43.4915449920 +49 53 12.934976352   13.50 12.58     ~ 7 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 23 0
10 2MASS J03261639+4850284 Y*O 03 26 16.4037441384 +48 50 28.378535208   13.57 12.61     ~ 28 0
11 V* V486 Per BY* 03 26 27.6565713168 +49 02 12.376063176   13.81 12.84     ~ 31 0
12 Cl Melotte 20 OpC 03 26 28.1 +48 58 30           ~ 861 0
13 V* V487 Per BY* 03 27 23.3200091938 +48 22 24.564083842   14.08 12.86 12.82   ~ 29 0
14 2MASS J03280080+4900009 Y*O 03 28 00.8006660448 +49 00 00.929251080   14.05 13.00   12.09 K0 24 0
15 V* V488 Per BY* 03 28 18.6829779012 +48 39 48.191915231   13.83 12.83   11.95 K0 47 0
16 UCAC4 704-025023 * 03 28 21.8005034123 +50 36 05.892125738   13.15 12.26 12.04   K0 13 0
17 V* V630 Per BY* 03 28 22.5413971680 +49 14 29.366325708   13.77 12.78   11.91 K0 24 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     ~ 25 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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