V826 Tau

 

 

 

HBC400

 







Alternative names:
HBC 400, FK 1, P2
Type:
WTTS
Spectral type:
K7, M0
Photometric data:
U-B:
1. 12
B-V:
1. 40
V:
12. 11
V-R:
0. 88
R-I:
0. 88
J-H:
0. 70
H-K:
0. 11
K:
8. 32
K-L:
0. 23
IRAS Fluxes(Jy): F12  = 0. 06c
F25  = 0. 17c
F60  = 0. 07c
F100 =
Activity parameters:
Pphot:
3.7 - 4.05 days
[3, 55]
V Range:
~ 0.06 m
[55]
vsini:
< 10 Km/s
X-rays luminosity: (ROSAT)
3.55×1030 erg s-1 (0.1-2.5 KeV)
[9]
(EINSTEIN)
2.63×1030 erg s-1 (0.16-3.5 KeV)
[15]
Wind parameters:
W(Hα) :
1.6 Å
W([OI]) :
< 0.1 Å
[8]
Associated with:
Binarity:
Characteristics:
Spectroscopic binary
P =
3.9 days
[48]
asini=
0.013 AU
[48]






 

 

IUE data:








Mg II Si II He II C IV Si IV O I F 2900 F1855
(erg2-
cm s) (-erg2-
cm s) (erg2-
cm s) (-erg2-
cm s) (-erg2-
cm s) (-erg2-
cm s) (-erg--
cm2s˚A ) (-erg--
cm2s˚A )








5.6E-14 1.5E-15








 

 

IUE spectra:









no
¯
Cam. Image Disp. Ap. Date T. exp. Comments Mag
 
[min.]









 
1 LWR 14390 L L 82-10-12 190.00 E=125,C=100,B=55 12.1