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Related papers: Discovery of the Fomalhaut C debris disc

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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

Fomalhaut is a bright star 7.7 parsecs (25 light years) from Earth that harbors a belt of cold dust with a structure consistent with gravitational sculpting by an orbiting planet. Here, we present optical observations of an exoplanet…

Although photometric and spectroscopic surveys with the Spitzer Space Telescope increased remarkably the number of well studied debris disks around A-type and Sun-like stars, detailed analyzes of debris disks around F-type stars remained…

Solar and Stellar Astrophysics · Physics 2015-05-20 A. Moór , I. Pascucci , Á. Kóspál , P. Ábrahám , T. Csengeri , L. L. Kiss , D. Apai , C. Grady , Th. Henning , Cs. Kiss , D. Bayliss , A. Juhász , J. Kovács , T. Szalai

We report the discovery of four rare debris disks with warm excesses around F-stars, significantly increasing the number of such systems known in the solar neighborhood. Three of the disks are consistent with the predictions of steady state…

Solar and Stellar Astrophysics · Physics 2009-08-05 A. Moór , D. Apai , I. Pascucci , P. Ábrahám , C. Grady , Th. Henning , A. Juhász , Cs. Kiss , Á. Kóspál

We report the discovery of a planetary-mass companion, HD 106906 b, with the new Magellan Adaptive Optics (MagAO) + Clio2 system. The companion is detected with Clio2 in three bands: $J$, $K_S$, and $L^\prime$, and lies at a projected…

Only 20\% of old field stars have detectable debris discs, leaving open the question of what disc, if any, is present around the remaining 80\%. Young moving groups allow to probe this population, since discs are expected to have been…

Earth and Planetary Astrophysics · Physics 2021-02-10 Nicole Pawellek , Mark Wyatt , Luca Matrà , Grant Kennedy , Ben Yelverton

Debris discs are second generation dusty discs formed by collisions of planetesimals. Many debris discs have been found and resolved around hot and solar-type stars. However, only a handful have been discovered around M-stars, and the…

Earth and Planetary Astrophysics · Physics 2020-09-01 Patricia Luppe , Alexander V. Krivov , Mark Booth , Jean-François Lestrade

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

We present ALMA Band 6 observations (1.3 mm/233 GHz) of Fomalhaut and its debris disc. The observations achieve a sensitivity of 17 $\mu$Jy and a resolution of 0.28 arcsec (2.1 au at a distance of 7.66 pc), which are the highest resolution…

Earth and Planetary Astrophysics · Physics 2017-04-19 J. A. White , A. C. Boley , W. R. F. Dent , E. B. Ford , S. Corder

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…

Debris disks, the tenuous rocky and icy remnants of planet formation, are believed to be evidence for planetary systems around other stars. The JCMT/SCUBA-2 debris disk legacy survey 'SCUBA-2 Observations of Nearby Stars' (SONS) observed…

Earth and Planetary Astrophysics · Physics 2016-05-04 J. P. Marshall , M. Booth , W. S. Holland , B. C. Matthews , J. S. Greaves , B. Zuckerman

Context: The 440 Myr old main-sequence A-star Fomalhaut is surrounded by an eccentric debris belt with sharp edges. This sort of a morphology is usually attributed to planetary perturbations, but the orbit of the only planetary candidate…

Earth and Planetary Astrophysics · Physics 2015-01-21 G. Cataldi , A. Brandeker , G. Olofsson , C. H. Chen , W. R. F. Dent , I. Kamp , A. Roberge , B. Vandenbussche

The dynamical evolution of planetary systems leaves observable signatures in debris disks. Optical images trace micron-sized grains, which are strongly affected by stellar radiation and need not coincide with their parent body population.…

Earth and Planetary Astrophysics · Physics 2015-06-04 Aaron C. Boley , Matthew J. Payne , Stuartt Corder , William Dent , Eric B. Ford , Megan Shabram

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

We present Herschel spatially resolved images of the debris disc orbiting the subgiant Kappa CrB. Not only are these the first resolved images of a debris disc orbiting a subgiant, but Kappa CrB is a rare example of an intermediate mass…

Earth and Planetary Astrophysics · Physics 2015-06-15 Amy Bonsor , Grant M. Kennedy , Justin R. Crepp , John A. Johnson , Mark C. Wyatt , Bruce Sibthorpe , Kate Y. L. Su

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

Stars with debris disks are intriguing targets for direct imaging exoplanet searches, both due to previous detections of wide planets in debris disk systems, as well as commonly existing morphological features in the disks themselves that…

Earth and Planetary Astrophysics · Physics 2015-02-04 Markus Janson , Sascha P. Quanz , Joseph C. Carson , Christian Thalmann , David Lafreniere , Adam Amara

Context. The interaction between low-mass companions and the debris discs they reside in is still not fully understood. A debris disc can evolve due to self-stirring, a process in which planetesimals can excite their neighbours to the point…

We present results from the earliest observations of DEBRIS, a Herschel Key Programme to conduct a volume- and flux-limited survey for debris discs in A-type through M-type stars. PACS images (from chop/nod or scan-mode observations) at 100…

Fomalhaut is a triple system, with all components widely separated (~1E5 au). Such widely separated binaries are thought to form during cluster dissolution, but that process is unlikely to form such a triple system. We explore an…

Earth and Planetary Astrophysics · Physics 2014-10-20 Andrew Shannon , Cathie Clarke , Mark Wyatt