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DK Tau |
HBC45
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Alternative names: |
HBC 45, MH α259-12 |
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Type: |
CTTS |
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Spectral type: |
K7 V |
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Photometric data: |
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U-B: |
-0. |
16 |
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B-V: |
1. |
14 |
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V: |
11. |
70 |
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V-R: |
0. |
85 |
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R-I: |
0. |
88 |
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J-H: |
1. |
09 |
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H-K: |
0. |
82 |
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K: |
7. |
05 |
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K-L: |
1. |
18 |
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| IRAS Fluxes(Jy): |
F12 = |
2. |
02 |
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F25 = |
2. |
38 |
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F60 = |
1. |
63 |
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F100 = |
3. |
06 |
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Activity parameters: |
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Pphot: |
8.37 days |
[6] |
V Range: |
~ 0.1 m |
[6] |
vsini: |
12 Km/s |
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| X-rays luminosity: |
(EINSTEIN) |
<7.59×1029 erg s-1 |
[67] |
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Wind parameters: |
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W(Hα) : |
Highly variable |
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W([OI]) : |
1.3 Å |
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[8] |
Associated with: |
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Binarity: |
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| Characteristics: |
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Double system |
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d = |
2′′53 |
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[48] |
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PA= |
115∘ |
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[48] |
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IUE spectra:
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n |
Cam. |
Image |
Disp. |
Ap. |
Date |
T. exp. |
Comments |
Mag |
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[min.] |
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| 1 |
LWP |
10059 |
L |
L |
87-02-02 |
40.00 |
E=203,C=74,B=41 |
12.3 |
| 2 |
LWP |
14318 |
L |
L |
88-10-27 |
60.00 |
E=170,C=139,B=66 |
12.9 |
| 3 |
LWP |
14790 |
L |
L |
89-01-08 |
75.00 |
E=181,C=62,B=43 |
13.2 |
| 4 |
LWP |
17192 |
L |
L |
90-01-20 |
60.00 |
E=150,B=41 |
13.1 |
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| 5 |
SWP |
49748 |
L |
L |
94-01-01 |
400.00 |
E=102,C=112,B=64 |
— |
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