VZ Cha

 

 

HBC578

 
Alternative names:
HBC 578, HM22, Sz 31
Type:
CTTS
Spectral type:
K6
Photometric data:
U-B:
 -0. 28
B-V:
 0. 81
V:
 12. 75
V-R:
 0. 78*i
R-I:
 0. 71*i
J-H:
 0. 89
H-K:
 0. 67
K:
 8. 57
K-L:
IRAS Fluxes(Jy): F12  = 0. 59
F25  = 0. 61
F60  = 0. 56
F100 = 1. 73
Activity parameters:
Pphot:
V Range:
vsini:
> 100 Km/s
 [16]
X-rays luminosity: (ROSAT)
3.16×1029 erg s-1 (0.4-2.5 KeV)
 [21]
Wind parameters:
W(Hα) :
71 Å
W([OI]) :
Associated with:
Binarity:
Characteristics:

 

 

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 )
7.0E-14 8.2E-15

 

 

IUE spectra:
no ¯
 Cam. Image Disp. Ap. Date T. exp.
Comments
 Mag
 
[min.]
 
1 LWP 05167 L L 85-01-09 30.00 ECC=231 13.0
 
2 SWP 24881 L L 85-01-10 420.00 C=115, B=83 13.3