Modeling giant extrasolar ring systems in eclipse and the case of J1407b: sculpting by exomoons?

@article{Kenworthy2015ModelingGE,
  title={Modeling giant extrasolar ring systems in eclipse and the case of J1407b: sculpting by exomoons?},
  author={Matthew A. Kenworthy and Eric E. Mamajek},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2015}
}
The light curve of 1SWASP J140747.93-394542.6, a $\sim$16 Myr old star in the Sco-Cen OB association, underwent a complex series of deep eclipses that lasted 56 days, centered on April 2007. This light curve is interpreted as the transit of a giant ring system that is filling up a fraction of the Hill sphere of an unseen secondary companion, J1407b. We fit the light curve with a model of an azimuthally symmetric ring system, including spatial scales down to the temporal limit set by the star's… Expand

Figures and Tables from this paper

Constraining the nature of the possible extrasolar PDS110b ring system
The young star PDS110 in the Ori OB1a association underwent two similar eclipses in 2008 and 2011, each of which lasted for a period of at least 25 days. One plausible explanation for these events isExpand
Constraints on the size and dynamics of the J1407b ring system
Context. J1407 (1SWASP J140747.93-394542.6 in full) is a young star in the Scorpius-Centaurus OB association that underwent a series of complex eclipses over 56 days in 2007. To explain these, it wasExpand
A search for transiting companions in the J1407 (V1400 Cen) system
Context. In 2007, the young star 1SWASP J140747.93-394542.6 (V1400 Cen) underwent a complex series of deep eclipses over 56 days. This was attributed to the transit of a ring system filling a largeExpand
Deep long asymmetric occultation in EPIC 204376071
We have discovered a young M star of mass 0.16 M⊙ and radius 0.63 R⊙, likely in the Upper Sco Association, that exhibits only a single 80 per cent deep occultation of 1-d duration. The star hasExpand
Periodic eclipses of the young star PDS 110 discovered with WASP and KELT photometry
We report the discovery of eclipses by circumstellar disc material associated with the young star PDS 110 in the Ori OB1a association using the SuperWASP and KELT surveys. PDS 110 (HD 290380, IRASExpand
Constraining the period of the ringed secondary companion to the young star J1407 with photographic plates
Context. The 16 Myr old star 1SWASP J140747.93-394542.6 (V1400 Cen) underwent a series of complex eclipses in May 2007, interpreted as the transit of a giant Hill sphere filling debris ring systemExpand
ALMA and NACO observations towards the young exoring transit system J1407 (V1400 Cen)
Our aim was to directly detect the thermal emission of the putative exoring system responsible for the complex deep transits observed in the light curve for the young Sco-Cen star 1SWASPExpand
A Search for Ringed Exoplanets using Kepler Photometry
Models are developed to simulate lightcurves of stars dimmed by transiting exoplanets with and without rings. These models are then applied to \textit{Kepler} photometry to search for planetary ringsExpand
Toward Detection of Exoplanetary Rings via Transit Photometry: Methodology and a Possible Candidate
The detection of a planetary ring of exoplanets remains one of the most attractive, but challenging, goals in the field of exoplanetary science. We present a methodology that implements a systematicExpand
Fast and precise light-curve model for transiting exoplanets with rings
The presence of silicate material in known rings in the Solar system raises the possibility of ring systems existing even within the snow line – where most transiting exoplanets are found. PreviousExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 44 REFERENCES
Analysis of 1SWASP J140747.93−394542.6 eclipse fine-structure: hints of exomoons
A recently discovered V = 12.3mag K5 pre-main-sequence star in the SuperWASP (Super Wide Angle Search for Planets) data base shows a peculiar light curve with a highly structured eclipse patternExpand
PLANETARY CONSTRUCTION ZONES IN OCCULTATION: DISCOVERY OF AN EXTRASOLAR RING SYSTEM TRANSITING A YOUNG SUN-LIKE STAR AND FUTURE PROSPECTS FOR DETECTING ECLIPSES BY CIRCUMSECONDARY AND CIRCUMPLANETARY DISKS
The large relative sizes of circumstellar and circumplanetary disks imply that they might be seen in eclipse in stellar light curves. We estimate that a survey of ~104 young (~10 million year old)Expand
Mass and period limits on the ringed companion transiting the young star J1407
The young (∼16 Myr) pre-main-sequence star in Sco–Cen 1SWASP J140747.93−394542.6, hereafter referred to as J1407, underwent a deep eclipse in 2007 April, bracketed by several shallower eclipses inExpand
A ring system detected around the Centaur (10199) Chariklo
TLDR
Observations of a multichord stellar occultation revealed the presence of a ring system around (10199) Chariklo, which is a Centaur—that is, one of a class of small objects orbiting primarily between Jupiter and Neptune—with an equivalent radius of 124  9 kilometres. Expand
The Orbit and Occultations of KH 15D
The unusual flux variations of the pre-main-sequence binary star KH 15D have been attributed to occultations by a circumbinary disk. We test whether or not this theory is compatible with newlyExpand
The Gemini NICI Planet-Finding Campaign: The Orbit of the Young Exoplanet β Pictoris b
We present new astrometry for the young (12-21 Myr) exoplanet beta Pictoris b taken with the Gemini/NICI and Magellan/MagAO instruments between 2009 and 2012. The high dynamic range of ourExpand
On the Age and Binarity of Fomalhaut
The nearby (d = 7.7 pc) A3V star Fomalhaut is orbited by a resolved dusty debris disk and a controversial candidate extrasolar planet. The commonly cited age for the system (200 ± 100 Myr) fromExpand
Transit Detectability of Ring Systems around Extrasolar Giant Planets
We investigate whether rings around extrasolar planets could be detected from those planets' transit light curves. To this end, we develop a basic theoretical framework for calculating andExpand
Saturn's largest ring
TLDR
It is reported that Saturn has an enormous ring associated with its outer moon Phoebe, extending from at least 128RS to 207RS (Saturn’s radius RS is 60,330 km); Dynamical considerations argue that these ring particles span the Saturnian system from the main rings to the edges of interplanetary space. Expand
Protoplanetary Disks and Their Evolution
Flattened, rotating disks of cool dust and gas extending for tens to hundreds of astronomical units are found around almost all low-mass stars shortly after their birth. These disks generally persistExpand
...
1
2
3
4
5
...