From jop at astro.columbia.edu Wed Aug 13 08:06:00 1997 From: jop at astro.columbia.edu (Joe Patterson) Date: Wed, 13 Aug 1997 08:06:00 -0400 (EDT) Subject: (cba:news) V Sagittae, etc. Message-ID: <199708131206.IAA24472@tristram.phys.columbia.edu> Dear CBAers, Here are some of the fruits of the V Sge analysis so far. The first file is the mean orbital light curve during July 9-August 9, based on 130 hr of data. (Mags are negative, sorry.) A simultaneous photoelectric observation by Sergei Shugarov enabled me to assign it a well-calibrated V magnitude. .01 -12.84752 .02 -12.85892 .03 -12.79166 .04 -12.698 .05 -12.67278 .06 -12.57756 .07 -12.53597 .08 -12.49992 9.000001E-02 -12.42669 .1 -12.3738 .11 -12.34296 .12 -12.29637 .13 -12.25594 .14 -12.22873 .15 -12.20153 .16 -12.1719 .17 -12.14865 .18 -12.1565 .19 -12.15904 .2 -12.1294 .21 -12.09403 .22 -12.07776 .23 -12.0684 .24 -12.06433 .25 -12.06311 .26 -12.06076 .27 -12.05768 .28 -12.05356 .29 -12.071 .3 -12.0717 .31 -12.07374 .32 -12.08548 .33 -12.08468 .34 -12.08141 .35 -12.0973 .36 -12.10641 .37 -12.08429 .38 -12.10437 .39 -12.0915 .4 -12.09669 .41 -12.10396 .42 -12.09679 .43 -12.11751 .44 -12.15803 .45 -12.16208 .46 -12.15899 .47 -12.17398 .48 -12.18122 .49 -12.18056 .5 -12.22812 .51 -12.22102 .52 -12.23679 .53 -12.21054 .54 -12.21935 .55 -12.19748 .56 -12.18547 .57 -12.13879 .58 -12.13414 .59 -12.11797 .6 -12.10453 .61 -12.07228 .62 -12.05936 .63 -12.02483 .64 -12.03421 .65 -11.99236 .66 -12.00666 .67 -11.99506 .68 -11.99032 .69 -11.9824 .7 -11.97503 .71 -11.97011 .72 -11.97238 .73 -11.97023 .74 -11.99159 .75 -11.99918 .76 -12.0157 .77 -12.01053 .78 -12.04409 .79 -12.03041 .8 -12.06578 .81 -12.06788 .82 -12.08682 .83 -12.11416 .84 -12.14154 .85 -12.19025 .86 -12.22837 .87 -12.24877 .88 -12.25344 .89 -12.35721 .9 -12.40799 .91 -12.43219 .92 -12.45887 .93 -12.51216 .94 -12.56027 .95 -12.63045 .96 -12.65116 .97 -12.72338 .98 -12.86577 .99 -12.85624 1 -12.86464 1.01 -12.84752 1.02 -12.85892 1.03 -12.79166 1.04 -12.698 1.05 -12.67278 1.06 -12.57756 1.07 -12.53597 1.08 -12.49992 1.09 -12.42669 1.1 -12.3738 1.11 -12.34296 1.12 -12.29637 1.13 -12.25594 1.14 -12.22873 1.15 -12.20153 1.16 -12.1719 1.17 -12.14865 1.18 -12.1565 1.19 -12.15904 1.2 -12.1294 1.21 -12.09403 1.22 -12.07776 1.23 -12.0684 1.24 -12.06433 1.25 -12.06311 1.26 -12.06076 1.27 -12.05768 1.28 -12.05356 1.29 -12.071 1.3 -12.0717 1.31 -12.07374 1.32 -12.08548 1.33 -12.08468 1.34 -12.08141 1.35 -12.0973 1.36 -12.10641 1.37 -12.08429 1.38 -12.10437 1.39 -12.0915 1.4 -12.09669 1.41 -12.10396 1.42 -12.09679 1.43 -12.11751 1.44 -12.15803 1.45 -12.16208 1.46 -12.15899 1.47 -12.17398 1.48 -12.18122 1.49 -12.18056 1.5 -12.22812 1.51 -12.22102 1.52 -12.23679 1.53 -12.21054 1.54 -12.21935 1.55 -12.19748 1.56 -12.18547 1.57 -12.13879 1.58 -12.13414 1.59 -12.11797 1.6 -12.10453 1.61 -12.07228 1.62 -12.05936 1.63 -12.02483 1.64 -12.03421 1.65 -11.99236 1.66 -12.00666 1.67 -11.99506 1.68 -11.99032 1.69 -11.9824 1.7 -11.97503 1.71 -11.97011 1.72 -11.97238 1.73 -11.97023 1.74 -11.99159 1.75 -11.99918 1.76 -12.0157 1.77 -12.01053 1.78 -12.04409 1.79 -12.03041 1.8 -12.06578 1.81 -12.06788 1.82 -12.08682 1.83 -12.11416 1.84 -12.14154 1.85 -12.19025 1.86 -12.22837 1.87 -12.24877 1.88 -12.25344 1.89 -12.35721 1.9 -12.40799 1.91 -12.43219 1.92 -12.45887 1.93 -12.51216 1.94 -12.56027 1.95 -12.63045 1.96 -12.65116 1.97 -12.72338 1.98 -12.86577 1.99 -12.85624 2 -12.86464 The second file is the O-C analysis of the primary minima, going back some 40 years. You'll see a pretty good parabola, indicative of Porb decreasing on a timescale of about 5 million years. Nice behavior for a roaring luminous star like this one (I estimate Lbol around 10**37 erg/s). -10662 -0.076 -9696 -0.060 -8659 -0.050 -7687 -0.044 -3500 -0.030 0 -0.0006 21 0.0076 23 -0.0066 27 -0.0003 93 -0.0098 95 -0.0006 126 0.0016 159 0.0087 636 0.0100 668 0.003 764 -0.0105 797 0.0023 2856 0.0044 2860 0.0115 2889 0.0069 2891 0.0126 3652 0.0165 4117 0.0074 4966 0.010 4968 0.023 4970 0.016 4972 0.018 5104 0.014 5106 0.017 5137 0.015 5668 0.014 5672 0.024 5676 0.027 5734 0.034 5769 0.017 5773 0.025 5775 0.013 7952 0.0155 9103 0.027 9107 0.019 10826 0.0043 10828 0.0240 11220 0.0110 11221 0.0130 11222 0.0170 14788 0.0001 14790 -0.0040 14792 -0.0030 19197 -0.0142 22094 -0.0170 22100 -0.0193 22777 -0.0238 22779 -0.0329 24130 -0.0178 24132 -0.0337 24815 -0.033 24817 -0.025 Alon Retter reminds me that we still owe loyalty to V1974 Cyg. This is true. And he's doing a campaign on it right now and getting good results from Israel and Japan. So I think it's very desirable that we norteamericanos chip in with a decent contribution from our longitude. The star's about 15.9 now and I imagine the amplitude's still just a few percent, that's why I had not planned to promote this. But I believe that the larger scopes in our network can do it, and with data from other longitudes you don't have to count on being able to see the modulation in your data. Dave Harvey and Cap'n Bob take note. Alon, keep the progress reports up (but send to cba-news at cbastro.org, as I will be e-mail-deaf as of tomorrow). Meanwhile V503 Cyg and RX1940-10 and AO Psc and FO Aqr continue to pour a flurry of photons glancing harmlessly off the Earth's water, rocks, fields, and shuttered observatories. joe From jop at astro.columbia.edu Wed Aug 13 10:40:27 1997 From: jop at astro.columbia.edu (Joe Patterson) Date: Wed, 13 Aug 1997 10:40:27 -0400 (EDT) Subject: (cba:news) a reduction package Message-ID: <199708131440.KAA24678@tristram.phys.columbia.edu> Dear dr. Petterson, please re-send this to cba. I don't know the adress. Thank you Rudolf > Dear colleagues, > I would like to point at a new version of CCD aperture photometry > package MuniPack developed by F. Hroch. Maybe some of you have > experiences with this soft. The new version is placed on GAMA's page in > section CCD/Muniphot. There is a new plotmat.exe (in SVGA graphic) which > will plot you field after photometry, mat2fot.exe and munilist.exe which > will prepare light curve (you can chose one of them) and a little bit > different kind of input parameters. You will clearly understound :-) > (Be careful. Now the list file is "@dir.dir" for example. > Have a nice day > Rudolf > P.S. Any comments are welcome. http://www.sci.muni.cz/~gama <-GAMA's > page > ******************************************************************** > * Rudolf Novak Private: Rudolf Novak * > * Nicholas Copernicus Observatory Bohuslava Martinu 50 * > * Kravi Hora 2 BRNO 602 00 * > * BRNO 616 00 Czech Republic * > * Czech Republic * > ******************************************************************** > * e-mail: rudolfn at physics.muni.cz * > * h-page: http://www.sci.muni.cz/~rudolfn * > ******************************************************************** > * IBT - Instantni astronomicky magazin * > * http://www.sci.muni.cz/~ibt * > ******************************************************************** -- ******************************************************************** * Rudolf Novak Private: Rudolf Novak * * Nicholas Copernicus Observatory Bohuslava Martinu 50 * * Kravi Hora 2 BRNO 602 00 * * BRNO 616 00 Czech Republic * * Czech Republic * ******************************************************************** * e-mail: rudolfn at physics.muni.cz * * h-page: http://www.sci.muni.cz/~rudolfn * ******************************************************************** * IBT - Instantni astronomicky magazin * * http://www.sci.muni.cz/~ibt * ********************************************************************