1997PASP..109....9A

Query : 1997PASP..109....9A

1997PASP..109....9A - Publ. Astron. Soc. Pac., 109, 9 (1997/January-0)

Stromgren uvby photometry of the magnetic chemically peculiar stars HR 1643, theta Aur, 49 Cam, and HR 3724.

ADELMAN S.J.

Abstract (from CDS):

Differential Stromgren uvby photometric observations from the Four College Automated Photoelectric Telescope of four magnetic Chemically Peculiar stars are used to refine rotaitonal periods and to define the shapes of the light curves. HR 1643 (P = 2.73475 d) shows large in phase variability in all four magnitudes. Theta Aur (P = 3.6188 d) exhibits large amplitude variations with two components contributing to the minima. For 49 Cam (P = 4.28679 d), we probably are observing both polar regions and much of the surface. The values for HR 3724 (P = 33.984 d) confirm Wolff's result that the main variability is in v.

Abstract Copyright: ∼

Journal keyword(s): Stars

VizieR on-line data: <Available at CDS (J/PASP/109/9): table2.dat table3.dat table4.dat table5.dat tablea>

Simbad objects: 14

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Number of rows : 14
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 HD 30085 * 04 50 36.3903746928 +70 56 29.494356432   6.268 6.341     A0IV 54 0
2 V* BN Cam a2* 05 12 22.4545154808 +73 56 48.040416348 4.970 5.320 5.450     B9.5VpSi 106 0
3 HD 33541 SB* 05 18 13.2421269840 +73 16 05.150872740 5.670 5.790 5.830     A0V 39 0
4 HD 37339 * 05 39 36.7998493680 +37 59 19.997876616 6.63 6.96 6.95     B9 31 0
5 HD 39182 * 05 52 39.6643545288 +39 34 28.936608816 6.570 6.480 6.390     A2V 46 0
6 * tet Aur a2* 05 59 43.27012 +37 12 45.3047 2.36 2.54 2.62 2.62 2.68 A0VpSi 296 1
7 * 24 Lyn PM* 07 43 00.4158205760 +58 42 37.293062616   5.024 4.947     A3IVn 82 0
8 * 49 Cam a2* 07 46 27.4146675768 +62 49 49.882910592   6.750 6.458     A7VpSrCrEuSiKsn 146 0
9 HD 62976 * 07 50 07.8303693792 +60 20 31.653592044   6.873 6.782     A2 21 0
10 HD 65301 * 08 01 20.7778506984 +59 02 50.648608284   6.171 5.772     F2:V: 63 0
11 * 24 Hya * 09 16 41.3667515952 -08 44 41.130060720 5.08 5.396 5.468     B3III/IV 64 0
12 HD 80447 PM* 09 19 33.8939291712 -11 18 53.869660956   6.703 6.618     A1V 34 0
13 V* KU Hya a2* 09 22 50.8563427 -09 50 19.659199 6.86 6.75 6.53     ApEuCrSr 176 0
14 * 29 Hya ** 09 27 14.64092 -09 13 25.3595       7.58   A0V 54 0

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