Light Curve Modelling - Collaboration proposal

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Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 01/06/2016 - 21:19

Hi all,

I would like to know if someone is interested in write a research paper with me concerning a really interesting eclipsing variable with high eccentricity discovered by me one year ago. The star in question is this: http://www.aavso.org/vsx/index.php?view=detail.top&oid=360037.

I recently got other data, and others I will take in the near future. Indeed, it seems that many of the published parameters (the star was included in this work published on JAAVSO: http://www.aavso.org/sites/default/files/jaavso/v42n2/364.pdf) are confirmed and that there is evidence of very high eccentricity and clear apsidal motion. Using a simple software for the simulation of the light curves from the stellar parameters I have estimated that the system may have an eccentricity around 0.4, that makes it one of the known systems with the eccentricity of the highest level (I based an estimate from this catalog: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/MNRAS/378/179). In addition the spectrum appears to be of type B2: the presence of a hot component makes it a really interesting scenario.

Is someone interested in participating in this work? I don't have the appropriate knowledge in light curve modelling and I would be very happy to cooperate with some AAVSO member able to accomplish this work. Of course the goal is to submit the paper to JAAVSO for publication.

Riccardo

potentially...

Hi Riccardo, I might be interested in collaborating on this.   I have a copy of Bradstreet's "BiinaryMaker" software, which is very easy to use, though not as sophisticated as full-blown W-D and Phoebe.

It is very interesting that you are basing your judgement of eccentricity on the different widths of primary and secondary eclipses.  I've recently been observing a star like that (that also has an offset secondary eclipse).

I'll send you an email,

Gary Billings