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The Sun and >15 percent of nearby stars are surrounded by dusty debris disks that must be collisionally replenished by asteroids and comets, as the dust would otherwise be depleted on <10 Myr timescales (ref. 1). Theoretical studies show…

Astrophysics · Physics 2009-11-13 Paul Kalas , James R. Graham , Mark Clampin

The apparent detection of an exoplanet orbiting Fomalhaut was announced in 2008. However, subsequent observations of Fomalhaut b raised questions about its status: Unlike other exoplanets, it is bright in the optical and nondetected in the…

Earth and Planetary Astrophysics · Physics 2020-05-13 Andras Gaspar , George H. Rieke

The nearby star Fomalhaut harbours a cold, moderately eccentric dust belt with a sharp inner edge near 133 au. A low-mass, common proper motion companion (Fom b), was discovered near the inner edge and was identified as a planet candidate…

We present new optical coronagraphic data of the bright star Fomalhaut obtained with the HST in 2010/2012 using STIS. Fomalhaut b is recovered at both epochs to high significance. The observations include the discoveries of tenuous…

Earth and Planetary Astrophysics · Physics 2015-06-15 Paul Kalas , James R. Graham , Michael P. Fitzgerald , Mark Clampin

The nearby A4-type star Fomalhaut hosts a debris belt in the form of an eccentric ring, which is thought to be caused by dynamical influence from a giant planet companion. In 2008, a detection of a point-source inside the inner edge of the…

Earth and Planetary Astrophysics · Physics 2015-06-03 Markus Janson , Joe Carson , David Lafreniere , David Spiegel , John Bent , Palmer Wong

Fomalhaut is a young, nearby star that is suspected to harbor an infant planetary system, interspersed with one or more belts of dusty debris. We present far-infrared images obtained with the Herschel Space Observatory with an angular…

The planet candidate Fomalhaut b is bright in optical light but undetected in longer wavelengths, requiring a large, reflective dust cloud. The most recent observations find an extremely eccentric orbit (e ~ 0.8), indicating that Fomalhaut…

Earth and Planetary Astrophysics · Physics 2015-06-23 S. M. Lawler , S. Greenstreet , B. Gladman

The nature and even the existence of a putative planet-mass companion ("Fomalhaut b") to Fomalhaut has been debated since 2008. In the present paper we reanalyze the multi-epoch ACS/STIS/WFC3 Hubble Space Telescope (HST) optical/near…

Earth and Planetary Astrophysics · Physics 2015-06-11 Raphael Galicher , Christian Marois , Ben Zuckerman , Bruce Macintosh

Following the optical imaging of the exoplanet candidate Fomalhaut b (Fom b), we present a numerical model of how Fomalhaut's debris disk is gravitationally shaped by an interior planet. The model is simple, adaptable to other debris disks,…

Astrophysics · Physics 2011-02-11 E. Chiang , E. Kite , P. Kalas , J. R. Graham , M. Clampin

We present Subaru/IRCS J band data for Fomalhaut and a (re)reduction of archival 2004--2006 HST/ACS data first presented by Kalas et al. (2008). We confirm the existence of a candidate exoplanet, Fomalhaut b, in both the 2004 and 2006 F606W…

Earth and Planetary Astrophysics · Physics 2015-06-11 Thayne Currie , John Debes , Timothy J. Rodigas , Adam Burrows , Yoichi Itoh , Misato Fukagawa , Scott Kenyon , Marc Kuchner , Soko Matsumura

The nearby star Fomalhaut is orbited by a compact source, Fomalhaut b, which has previously been interpreted as either a dust-enshrouded exoplanet or a dust cloud generated by the collision of two planetesimals. Such collisions are rarely…

Fomalhaut A is among the most well-studied nearby stars and has been discovered to possess a putative planetary object as well as a remarkable eccentric dust belt. This eccentric dust belt has often been interpreted as the dynamical…

Earth and Planetary Astrophysics · Physics 2017-10-25 Nathan A. Kaib , Ethan B. White , Andre Izidoro

Planetary debris disks around other stars are analogous to the Asteroid and Kuiper belts in the Solar System. Their structure reveals the configuration of small bodies and provides hints for the presence of planets. The nearby star…

A candidate < 3 Jupiter mass, extrasolar planet was recently imaged by Kalas et al. (2008) using HST/ACS at 12.7" (96 AU) separation from the nearby (d = 7.7 pc) young (~200 Myr) A2V star Fomalhaut. Here we report results from M-band (4.8…

Fomalhaut b is a directly imaged object in the debris disk of the star Fomalhaut. It has been hypothesized to be a planet, however there are issues with the observed colours of the object that do not fit planetary models. An alternative…

Solar and Stellar Astrophysics · Physics 2017-03-10 K. Poppenhaeger , K. Auchettl , S. J. Wolk

Fomalhaut b is currently the least massive, directly imaged exoplanet candidate. New observation epochs reveal this object to be moving on a highly eccentric orbit (Kalas et al. 2013), which sets important new constraints. I consider…

Earth and Planetary Astrophysics · Physics 2015-06-18 Daniel Tamayo

Fomalhaut plays an important role in the study of debris disks and small bodies in other planetary systems. The proximity and luminosity of the star make key features of its debris, like the water ice-line, accessible. Here we present ALMA…

Earth and Planetary Astrophysics · Physics 2016-02-17 Kate Y. L. Su , George H. Rieke , Denis Defrere , Kuo-Song Wang , Shih-Ping Lai , David J. Wilner , Rik van Lieshout , Chin-Fei Lee

[Abridged] Debris disks are extrasolar analogs to the solar system planetesimal belts. The star Fomalhaut harbors a cold debris belt at 140 AU as well as evidence of a warm dust component, which is suspected of being a bright analog to the…

We report observations with the JWST/NIRCam coronagraph of the Fomalhaut system. This nearby A star hosts a complex debris disk system discovered by the IRAS satellite. Observations in F444W and F356W filters using the round 430R mask…

At 7.7 pc, the A-type star Fomalhaut hosts a bright debris disk with multiple radial components. The disk is eccentric and misaligned, strongly suggesting that it is sculpted by interaction with one or more planets. Compact sources are now…

Earth and Planetary Astrophysics · Physics 2023-07-19 Grant M. Kennedy , Joshua B. Lovell , Paul Kalas , Michael P. Fitzgerald
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