GM Aur

 

 

 

HBC77

 
Alternative names:
HBC 77, MH α259-1     
Type:
CTTS
Spectral type:
K3 V
Photometric data:
U-B:
 1. 19
B-V:
 0. 33
V:
 12. 03
V-R:
 0. 81
R-I:
 0. 72
J-H:
H-K:
 0. 23
K:
 8. 59
K-L:
 0. 37
IRAS Fluxes(Jy): F12  = 0. 25b
F25  = 1. 07
F60  = 3. 08
F100 = 3. 44b
Activity parameters:
Pphot:
12.0 - 5.3 days
[6, 51]
V Range:
0.4-0.6 m
[1]
vsini:
13 Km/s
X-rays luminosity: (EINSTEIN)
5.62×1029 erg s-1 (0.16-3.5 KeV)
 [15]
Wind parameters:
W(Hα) :
96 Å
W([OI]) :
0.2 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- )
5.9E-13 6.2E-14 3.8E-14 1.6E-13 6.1E-14 5.7E-14 8.5E-15 2.2E-15

 

 

IUE spectra:
no ¯
 Cam. Image Disp. Ap. Date T. exp.
Comments
 Mag
 
[min.]
 
1 LWP 06973 L H 85-10-22 360.00 E=219,B=157 11.9
2 LWP 12478 L L 88-01-12 25.00 E=142,C=63,B=42 11.9
3 LWP 12851 L L 88-03-14 75.00 C=108,B=55 12.0
4 LWR 11862 L L 81-10-30 30.00 E=204,C=90,B=43 11.9
5 LWR 12666 L L 82-02-23 25.00 E=190,C=80,B=40 11.9
6 LWR 15015 L L 83-01-07 25.00 E=95,C=60,B=29 11.9
7 LWR 15016 L L 83-01-08 120.00 E=240,C=90,B=37 11.9
8 SWP 15345 L L 81-10-30 200.00 C=175,B=136 11.8
9 SWP 16414 L L 82-02-23 345.00 E=165,C=140,B=108 11.9
10 SWP 18964 L L 83-01-07 420.00 E=139,C=115,B=80 11.9