Hostname: page-component-745bb68f8f-v2bm5 Total loading time: 0 Render date: 2025-01-14T13:01:39.943Z Has data issue: false hasContentIssue false
  • English
  • Français

Modeling of a Giant Exoring System Around the Substellar Companion J1407b

Published online by Cambridge University Press:  27 January 2016

Matthew A. Kenworthy  and
Eric E. Mamajek
Matthew A. Kenworthy
Affiliation:
Leiden Observatory, Leiden University, Niels Bohrweg 2, 2333 RA, Leiden, The Netherlands email: [email protected]
Eric E. Mamajek
Affiliation:
University of Rochester email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We model the complex light curve of 1SWASP J140747.93-394542.6, a ~16 Myr old star in the Sco-Cen OB association, with a giant ring system that fills a significant fraction of the Hill sphere of an unseen secondary companion, J1407b. The best ring model has 37 rings and extends out to a radius of 0.6 AU (90 million km), and the rings have an estimated total mass on the order of 1 M⊕. The ring system has one clearly defined gap at 0.4 AU (61 million km), which we hypothesize is being cleared out by a < 0.8 M⊕ exosatellite orbiting around the secondary companion.

Keywords

techniques: photometricplanetary systems: formationplanets: rings
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S314: Young Stars & Planets Near the Sun , November 2015 , pp. 171 - 174
Copyright
Copyright © International Astronomical Union 2016 

References

Butterset al. 2010, A&A, 520, L10Google Scholar
Dong, S., et al. 2014, ApJ, 788, 41Google Scholar
Graczyk, D., Mikołajewski, M., Tomov, T., Kolev, D., & Iliev, I. 2003, A&A, 403, 1089Google Scholar
Graczyk, D.et al. 2011, Acta Astronomica, 61, 103Google Scholar
Guinan, E. F. & Dewarf, L. E. 2002, in Astronomical Society of the Pacific Conference Series, Vol. 279, Exotic Stars as Challenges to Evolution, ed. Tout, C. A. & van Hamme, W., 121CrossRefGoogle Scholar
Hamilton, C. M., et al. 2005, AJ, 130, 1896Google Scholar
Kenworthy, M. A., et al. 2015, MNRAS, 446, 411CrossRefGoogle Scholar
Kloppenborg, B., et al. 2010, Nature, 464, 870Google Scholar
Mamajek, E. E., et al. 2012, AJ, 143, 72Google Scholar
Mikolajewski, M., et al. 2005, Ap and SS, 296, 445Google Scholar
Mikolajewski, M. & Graczyk, D. 1999, MNRAS, 303, 521CrossRefGoogle Scholar
Rattenbury, N. J., et al. 2014, ArXiv e-printsGoogle Scholar
van Werkhoven, T. I. M., Kenworthy, M. A., & Mamajek, E. E. 2014, MNRAS, 441, 2845Google Scholar
Winn, J. N., et al. 2006, ApJ, 644, 510Google Scholar