(cba:news) Tak V85 and friends
Joe Patterson
jop at astro.columbia.edu
Sat Jan 29 15:27:50 EST 2000
Dear CBAers,
Well as many of you know we've been vigorously pursuing the new
eclipsing SU UMa star, Takamizawa V85. We have had some good weather
in AZ, and Jonathan has obtained some wonderful high-speed light
curves. The white dwarf seems to have emerged a lot faster than I
expected. It's responsible for about *half* the light in the binary,
it gets covered and uncovered in just 35 seconds by the knife-edge of
the secondary. I append a blow-up of the eclipse; look at the
egresses - you can see a clean egress of the white dwarf (first) and
then the bright spot (last). So we can measure the brightness of both
every time around. O! the joy! (Meriwether Lewis after glimpsing the
Pacific.) By the way, this is an intensity scale, which facilitates
the identification of components; the star is about 16.7 out of eclipse
and 19.5 in.
Admittedly very few of you are in position to measure such things, but
I couldn't resist. Some of the hump behavior is very strong and could
still be measured with small scopes (Tonny has successfully done it),
but for most TmzV85 has dropped off their radar screens (or perhaps
never appeared). For most of the CBA world, I again commend BY Cam,
FS Aur, and CN Ori. RZ LMi is the other appealing target now coming
into view - up all night now in Upper Hyperborea. BY Cam is a violent
variable and will keep you hopping!
Jonathan threatens to revamp the website and set up a nice TmzV85
centerfold. He is very busy with observing now but that should come
in about 2 weeks. The VSNET website has many daily updates on the
Tak-ster, by the way. Attempts to foment a collaboration with the
Ouda people have not been successful, but... well, maybe some day.
Joe
Eclipse blow-up - HJD versus intensity
72.87072 94.9729
72.87097 94.5366
72.87121 94.3626
72.87146 96.9170
72.87171 97.6337
72.87195 97.9039
72.8722 100.092
72.87245 99.4489
72.87269 95.2357
72.87295 101.484
72.87319 93.1536
72.87343 88.0643
72.87369 90.2817
72.87393 91.0332
72.87418 88.1454
72.87443 86.7760
72.87467 86.1390
72.87492 86.0597
72.87517 81.7334
72.87541 82.7179
72.87567 84.4889
72.87591 83.2530
72.87615 85.6643
72.87641 87.0963
72.87665 82.7942
72.87689 82.9468
72.87715 85.5854
72.87739 80.0202
72.87763 90.1986
72.87789 86.1390
72.87813 81.6582
72.87837 92.4698
72.87863 90.0326
72.87887 99.1744
72.87911 97.6337
72.87937 87.2569
72.87961 86.5366
72.87986 87.8213
72.88011 83.0998
72.88035 84.8008
72.8806 83.7915
72.88085 86.1390
72.88109 81.0587
72.88134 89.6189
72.88159 79.2136
72.88183 75.5092
72.88208 84.3334
72.88233 78.7771
72.88258 89.5364
72.88282 92.5550
72.88306 90.3649
72.88332 105.002
72.88356 93.1536
72.8838 94.2757
72.88406 87.9832
72.8843 91.3692
72.88454 93.6699
72.8848 88.7973
72.88504 94.1022
72.8853 100.184
72.88554 95.0604
72.88578 89.2894
72.88604 93.6699
72.88628 97.2747
72.88652 99.1744
72.88678 93.1536
72.88702 101.111
72.88726 97.9941
72.88752 99.0832
72.88776 98.5371
72.9038 126.706
72.90406 137.151
72.90431 130.496
72.90455 140.734
72.90481 122.574
72.90506 125.429
72.90531 142.036
72.90556 141.644
72.90582 144.145
72.90606 151.495
72.90631 153.744
72.90656 159.661
72.9068 143.218
72.90705 139.701
72.9073 135.893
72.90754 146.015
72.9078 135.145
72.90804 141.644
72.90828 138.420
72.90854 123.140
72.90878 133.413
72.90902 123.822
72.90928 125.892
72.90952 125.314
72.90976 117.057
72.91001 113.762
72.91026 124.165
72.9105 125.545
72.91075 120.005
72.911 121.450
72.91124 109.647
72.9115 114.498
72.91174 109.144
72.91198 108.143
72.91224 109.446
72.91248 114.287
72.91273 125.660
72.91298 121.450
72.91322 130.016
72.91347 129.419
72.91372 132.068
72.91396 126.823
72.91421 119.014
72.91446 125.429
72.9147 122.348
72.91495 128.943
72.9152 131.704
72.91545 135.020
72.91569 129.181
72.91594 132.556
72.91619 124.279
72.91643 127.997
72.91668 124.853
72.91693 127.174
72.91717 137.151
72.91742 133.413
72.91767 140.345
72.91791 138.038
72.91818 128.351
72.91842 129.777
72.91866 123.140
72.91892 121.786
72.91916 123.140
72.9194 127.408
72.91966 134.772
72.9199 143.747
72.92014 146.015
72.9204 141.644
72.92064 138.547
72.92089 107.053
72.92114 89.7015
72.92138 80.2416
72.92164 77.1258
72.92188 68.8652
72.92214 63.8557
72.92238 57.4910
72.92263 46.7735
72.92288 29.2146
72.92313 19.2486
72.92337 14.4012
72.92362 11.4604
72.92387 10.0092
72.92411 10.8542
72.92436 9.69169
72.92461 10.9144
72.92486 12.4968
72.92511 13.8547
72.92535 15.6170
72.92561 38.4414
72.92585 61.8301
72.92611 68.0456
72.92636 71.5154
72.9266 72.3102
72.92685 78.2708
72.9271 79.5060
72.92736 80.6863
72.9276 84.7227
72.92785 86.3773
72.9281 84.4111
72.92834 84.6447
72.92859 86.9360
72.92884 95.4113
72.92908 112.098
72.92933 124.968
72.92958 121.898
72.92983 120.892
72.93008 126.240
72.93033 130.978
72.93058 132.190
72.93083 124.165
72.93108 133.168
72.93134 133.045
72.93159 125.660
72.93183 130.857
72.93209 131.099
72.93234 126.357
72.93259 122.574
72.93284 122.574
72.9331 122.011
72.93335 123.026
72.93359 115.664
72.93385 116.627
72.9341 121.338
72.93435 120.115
72.9346 111.995
72.93486 112.615
72.93511 111.070
72.93535 113.867
72.93561 119.233
72.93585 113.553
72.93611 107.349
72.93636 112.305
72.9366 114.921
72.93686 113.553
72.93711 119.233
72.93737 115.877
72.93761 108.143
72.93786 105.293
72.93812 108.442
72.93836 99.6322
72.93862 99.8159
72.93887 102.329
72.93911 107.844
72.93937 103.371
72.93961 110.255
72.93987 98.9008
72.94011 106.267
72.94036 102.235
72.94062 100.739
72.94086 105.681
72.94112 99.9079
72.94136 106.954
72.94161 105.390
72.94187 105.584
72.94211 99.4489
72.94237 100
72.94261 104.039
72.94286 103.181
72.94311 105.293
72.94335 107.745
72.94361 103.181
72.94385 107.053
72.94409 112.512
72.94435 105.584
72.94459 105.681
72.94483 107.944
72.94509 110.764
72.94533 100.554
72.94557 101.111
72.94583 101.204
72.94607 106.169
72.94631 104.616
72.94657 107.646
72.94681 97.3643
72.94705 103.848
72.94731 95.0604
72.94755 95.0604
72.9478 98.3557
72.94805 98.9919
72.94829 98.6279
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