CD -34∘7151 - TW Hya

 

 

 

HBC568

 
Alternative names:
HBC 568, He 3-549
Type:
CTTS
Spectral type:
K7 V
Photometric data:
U-B:
 -0. 36
B-V:
 0. 79
V:
 10. 94
V-R:
 0. 75
R-I:
 0. 76
J-H:
 0. 82
H-K:
 0. 27
K:
 7. 38
K-L:
 0. 41
IRAS Fluxes(Jy): F12  = 0. 66
F25  = 2. 50
F60  = 4. 07
F100 = 5. 06
Activity parameters:
Pphot:
1.25 days
[40]
V Range:
0.1 m
 [40]
vsini:
X-rays luminosity:
Wind parameters:
W(Hα) :
86 Å (variable)
W([OI]) :
Associated with:
Binarity:
Characteristics:

 

 

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- )
4.2E-12 3.0E-13 4.9E-13 1.0E-12 4.3E-13 9.1E-13 5.0E-14 1.1E-14

 

 

IUE spectra:
no ¯
 Cam. Image Disp. Ap. Date T. exp.
Comments
 Mag
 
[min.]
 
1 LWP 03733 L L 84-07-08 5.00 E=152,C=63,B=42 10.8
2 LWP 03740 L L 84-07-09 5.00 E=201,C=80,B=52 10.8
3 LWP 03766 L L 84-07-15 5.00 E=190,C=120,B=97 10.8
4 LWP 03768 L L 84-07-15 5.00 E=232,C=175,B=142 10.8
5 LWP 03769 L L 84-07-15 5.00 E=181,C=110,B=85 10.8
6 LWP 03770 L L 84-07-15 25.00 E=4X,C=150,B=80 10.9
7 LWP 03771 H L 84-07-16 60.00 E=174,B=110 11.0
8 LWP 03777 H L 84-07-16 720.00 E=10X,B=136 10.9
9 LWP 03779 L L 84-07-17 5.00 E=167,C=72,B=45 11.0
 
10 LWR 05966 L L 79-10-29 60.00 E=3X,C=200,B=35 11.0
11 LWR 05966 L S 79-10-29 20.00 E=194,C=85,B=35 11.0
12 LWR 15747 H L 83-04-16 47.00 C=180,B=122 10.9
 
13 SWP 07036 L L 79-10-29 152.00 E=10X,C=165,B=52 11.0
14 SWP 18967 H L 83-01-08 404.00 ECC=163 10.8
15 SWP 23467 H L 84-07-15 810.00 E=10X,B=130 10.9
16 SWP 23471 L L 84-07-16 100.00 E=155,C=72,B=45 10.9
17 SWP 23472 H L 84-07-17 40.00 E=102,B=70 11.0