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Proceedings Paper

MWC 314: binary results from optical interferometry compared with spectroscopy and photometry
Author(s): 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
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Paper 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.

Paper Details

Date Published: 24 July 2014
PDF: 12 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91460G (24 July 2014); doi: 10.1117/12.2055364
Show Author Affiliations
Noel D. Richardson, Univ. de Montréal (Canada)
Anthony F. J. Moffat, Univ. de Montréal (Canada)
Raphael Maltais-Tariant, Univ. de Montréal (Canada)
Herbert Pablo, Univ. de Montréal (Canada)
Douglas R. Gies, Georgia State Univ. (United States)
Nicole St-Louis, Univ. de Montréal (Canada)
Gail Schaefer, CHARA (United States)
Anatoly S. Miroshnichenko, Univ. of North Carolina at Greensboro (United States)
Chris Farrington, CHARA (United States)
Emily J. Aldoretta, Univ. de Montréal (Canada)
Etienne Artigau, Univ. de Montréal (Canada)
Tabetha Boyajian, Yale Univ. (United States)
Katie Gordon, Georgia State Univ. (United States)
P. J. Goldfinger, CHARA (United States)
Jeremy Jones, Georgia State Univ. (United States)
Rachel Matson, Georgia State Univ. (United States)
Harold A. McAlister, Georgia State Univ. (United States)
David O'Brien, Max-Planck-Institut für Radioastronomie (Germany)
Deepak Raghavan, Georgia State Univ. (United States)
Tahina Ramiaramanantsoa, Univ. de Montréal (Canada)
Stephen T. Ridgway, National Optical Astronomy Observatory (United States)
Nic Scott, Georgia State Univ. (United States)
Judit Sturmann, CHARA (United States)
Laszlo Sturmann, CHARA (United States)
Theo ten Brummelaar, CHARA (United States)
Joshua D. Thomas, Clarkson Univ. (United States)
Nils Turner, CHARA (United States)
Norm Vargas, CHARA (United States)
Sergey Zharikov, Observatorio Astronómico Nacional (Mexico)

Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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