DE Tau

hbc33.eps

HBC33

 
Alternative names:
HBC 33, MH α259-8
Type:
CTTS
Spectral type:
M2 V
Photometric data:
U-B:
 -0. 16
B-V:
 1. 38
V:
 13. 00
V-R:
 1. 07
R-I:
 1. 23
J-H:
 0. 89
H-K:
 0. 54
K:
 7. 76
K-L:
 1. 13
IRAS Fluxes(Jy): F12  = 0. 42
F25  = 0. 67
F60  = 1. 23
F100 = 0. 40c
Activity parameters:
Pphot:
7.6 days
[6]
V Range:
0.3 m
[6]
vsini:
10 Km/s
[38]
X-rays luminosity: (EINSTEIN)
<6.46×1029 erg s-1 (0.16-3.5 KeV)
 [15]
Wind parameters:
W(Hα) :
54 Å
W([OI]) :
0.3 Å
 [8]
Associated with:
Binarity:
Characteristics:
Single
 [47, 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 )
9.5E-13 7.7E-15

 

 

IUE spectra:
no ¯
 Cam. Image Disp. Ap. Date T. exp.
Comments
Mag
 
[min.]
 
1 LWP 12472 L L 88-01-11 37.00 E=178,C=68,B=44 12.6
2 LWP 12856 L L 88-03-15 25.00 E=188,C=68,B=38 12.5
3 LWP 12857 L L 88-03-15 180.00 C=140,B=68 12.5
4 LWP 12858 L L 88-03-15 25.00 E=190,C=60,B=40 12.6
5 LWP 17188 L L 90-01-20 75.00 E=2X,C=112,B=44 12.5
6 LWR 11857 L L 81-10-28 30.00 E=220,C=90,B=42 12.6
7 LWR 15026 L L 83-01-09 25.00 E=161,C=65,B=32 12.7
8 LWR 15029 L L 83-01-10 115.00 E=3X,C=105,B=42 12.6
9 SWP 15340 L L 81-10-28 135.00 E=130,C=130,B=102 12.6
10 SWP 18977 L L 83-01-09 420.00 E=112,C=95,B=70 12.7
11 SWP 32700 L L 88-01-11 720.00 E=108,C=166,B=114 12.6