DN Tau

 

 

HBC65

 

 
Alternative names:
HBC 65, MH α259-18
Type:
CTTS
Spectral type:
M0 V
Photometric data:
U-B:
 1. 45
B-V:
 0. 74
V:
 12. 36
V-R:
 1. 34
R-I:
 1. 08
J-H:
 0. 85
H-K:
 0. 29
K:
 8. 01
K-L:
 0. 68
IRAS Fluxes(Jy): F12  = 0. 35
F25  = 0. 60
F60  = 0. 65b
F100 =
Activity parameters:
Pphot:
6.3 days
[72]
V Range:
0.3 m
 [72]
vsini:
8 Km/s
X-rays luminosity: (EINSTEIN)
1.26×1030 erg s-1 (0.16-3.5 KeV)
 [15]
Wind parameters:
W(Hα) :
12 Å
W([OI]) :
< 0.1 Å
 [8]
Associated with:
Binarity:
Characteristics:
Single
 [47, 61, 64]

 

 

IUE data:
Mg II Si II He II C IV Si IV O I F 2900 F1855
(ecmr2gs-) (cemrg2s) (ecmr2gs-) (cermg2s) (cermg2s) (cemrg2s) (cmer2gs˚A- ) (cemrg2s˚A- )
3.1E-13 2.9E-15

 

IUE spectra:
no ¯
 Cam. Image Disp. Ap. Date T. exp.
Comments
 Mag
 
[min.]
 
1 LWP 06968 L L 85-10-22 60.00 E=175,C=87,B=64 12.4
2 LWP 14796 L L 89-01-09 135.00 E=1.5X,C=91,B=54 12.1
3 LWP 14812 L L 89-01-13 40.00 E=123,C=61,B=40 12.1
4 LWP 14877 L L 89-01-20 50.00 E=181,C=66,B=41 12.1
5 LWP 14885 L L 89-01-21 50.00 E=154,C=56,B=41 12.1
6 LWP 14893 L L 89-01-22 50.00 E=151,C=76,B=56 12.2
7 LWP 14898 L L 89-01-23 50.00 E=183,C=118,B=96 12.2
8 LWP 14904 L L 89-01-23 30.00 E=102,C=55,B=41 12.2
9 LWP 14916 L L 89-01-25 30.00 E=107,C=55,B=39 12.2
10 LWP 26517 L L 93-10-06 215.00 FESBCK:252,FO; —
11 LWP 26535 L L 93-10-09 195.00 FESBCK:247,FO —
12 LWP 26549 L L 93-10-13 150.00 FESBCK:353,FO; —
13 LWP 26554 L L 93-10-14 143.00 FESBCK:298,FO; —
14 LWP 26555 L L 93-10-14 39.00 FESBCK:298,FO; —
15 LWR 12576 L L 82-02-14 30.00 E=98,C=50,B=50 12.5
16 LWR 16944 L L 83-10-08 50.00 E=122,C=60,B=36 12.2
17 LWR 16963 L L 83-10-10 75.00 E=162,C=100,B=46 12.3
18 LWR 16973 L L 83-10-13 75.00 E=111,C=68,B=36 12.2
19 LWR 16981 L L 83-10-15 75.00 E=133,C=83,B=40 12.7