AA Tau

 

 

HBC63

 
Alternative names:
HBC 63, MH α259-17
Type:
CTTS
Spectral type:
K7 V
Photometric data:
U-B:
 -0. 26
B-V:
 1. 04
V:
 12. 37
V-R:
 0. 85
R-I:
 0. 96
J-H:
 1. 00
H-K:
 0. 55
K:
 7. 95
K-L:
 0. 98
IRAS Fluxes(Jy): F12  = 0. 43
F25  = 0. 61
F60  = 1. 23
F100 = 3. 29
Activity parameters:
Pphot:
8.2 days
[72]
V Range:
~ 1 m
 [72]
vsini:
11 Km/s
X-rays luminosity: (EINSTEIN)
3.39×1029 erg s-1 (0.16-3.5 KeV)
 [15]
Wind parameters:
W(Hα) :
37 Å
W([OI]) :
0.4 Å
 [8]
Associated with:
Binarity:
Characteristics:
Single
 [47, 61, 64]

 

 

IUE data:
Mg II Si II He II C IV Si IV O I F 2900 F1855
(erg- cm2s) (-erg- cm2s) (erg- cm2s) (-erg- cm2s) (-erg- cm2s) (-erg- cm2s) (-erg-- cm2s˚A ) (-erg-- cm2s˚A )
1.2E-13 2.7E-15

 

 

IUE spectra:
no ¯
 Cam. Image Disp. Ap. Date T. exp.
Comments
 Mag
 
[min.]
 
1 LWP 14319 L L 88-10-27 60.00 E=132,C=99,B=73 12.5
2 LWP 14788 L L 89-01-08 150.00 E=172,C=85,B=52 12.5
3 LWP 14811 L L 89-01-13 40.00 E=87,C=63,B=46 12.9
4 LWR 12550 L L 82-02-11 30.00 E=107,C=60,B=30 12.5
5 LWR 12574 L L 82-02-14 60.00 E=100,C=80,B=40 13.3
6 LWR 15017 L L 83-01-08 30.00 E=140,C=80,B=33 12.4
7 SWP 18966 L L 83-01-08 152.00 E=72,B=61 12.4