MWC 314: binary results from optical interferometry compared with spectroscopy and photometry

Noel D. Richardson; Anthony F. J. Moffat; Raphael Maltais-Tariant; Herbert Pablo; Douglas R. Gies; Nicole St-Louis; Gail Schaefer; Anatoly S. Miroshnichenko; Chris Farrington; Emily J. Aldoretta; Etienne Artigau; Tabetha Boyajian; Katie Gordon; P. J. Goldfinger; Jeremy Jones; Rachel Matson; Harold A. McAlister; David O'Brien; Deepak Raghavan; Tahina Ramiaramanantsoa; Stephen T. Ridgway; Nic Scott; Judit Sturmann; Laszlo Sturmann; Theo ten Brummelaar; Joshua D. Thomas; Nils Turner; Norm Vargas; Sergey Zharikov

doi:10.1117/12.2055364

24 July 2014 MWC 314: binary results from optical interferometry compared with spectroscopy and photometry

Noel D. Richardson, Anthony F. J. Moffat, Raphael Maltais-Tariant, Herbert Pablo, Douglas R. Gies, Nicole St-Louis, Gail Schaefer, Anatoly S. Miroshnichenko, Chris Farrington, Emily J. Aldoretta, Etienne Artigau, Tabetha Boyajian, Katie Gordon, P. J. Goldfinger, Jeremy Jones, Rachel Matson, Harold A. McAlister, David O'Brien, Deepak Raghavan, Tahina Ramiaramanantsoa, Stephen T. Ridgway, Nic Scott, Judit Sturmann, Laszlo Sturmann, Theo ten Brummelaar, Joshua D. Thomas, Nils Turner, Norm Vargas, Sergey Zharikov

Author Affiliations +

Proceedings Volume 9146, Optical and Infrared Interferometry IV; 91460G (2014) https://doi.org/10.1117/12.2055364
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

We initiated a multi-technique campaign to understand the physics and properties of the massive binary system MWC 314. Our observations included optical high-resolution spectroscopy and Johnson photometry, nearinfrared spectrophotometry, and K′−band long-baseline interferometry with the CHARA Array. Our results place strong constraints on the spectroscopic orbit, along with reasonable observations of the phase-locked photometric variability. Our interferometry, with input from the spectrophotometry, provides information on the geometry of the system that appears to consist of a primary star filling its Roche Lobe and loosing mass both onto a hidden companion and through the outer Lagrangian point, feeding a circumbinary disk. While the multi-faceted observing program is allowing us to place some constraints on the system, there is also a possibility that the outflow seen by CHARA is actually a jet and not a circumbinary disk.

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Noel D. Richardson, Anthony F. J. Moffat, Raphael Maltais-Tariant, Herbert Pablo, Douglas R. Gies, Nicole St-Louis, Gail Schaefer, Anatoly S. Miroshnichenko, Chris Farrington, Emily J. Aldoretta, Etienne Artigau, Tabetha Boyajian, Katie Gordon, P. J. Goldfinger, Jeremy Jones, Rachel Matson, Harold A. McAlister, David O'Brien, Deepak Raghavan, Tahina Ramiaramanantsoa, Stephen T. Ridgway, Nic Scott, Judit Sturmann, Laszlo Sturmann, Theo ten Brummelaar, Joshua D. Thomas, Nils Turner, Norm Vargas, and Sergey Zharikov "MWC 314: binary results from optical interferometry compared with spectroscopy and photometry", Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91460G (24 July 2014); https://doi.org/10.1117/12.2055364

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