Results 1 to 10 of about 584,793 (309)

A planet within the debris disk around the pre-main-sequence star AU Microscopii [PDF]

Nature, 2020
AU Microscopii (AU Mic) is the second closest pre-main-sequence star, at a distance of 9.79 parsecs and with an age of 22 million years 1 . AU Mic possesses a relatively rare 2 and spatially resolved 3 edge-on debris disk extending from about 35 to 210 ...
Peter Plavchan, Thomas Barclay, Jonathan Gagné   +2 more
exaly   +4 more sources

How Sublimation Delays the Onset of Dusty Debris Disk Formation Around White Dwarf Stars. [PDF]

Astrophys J Lett, 2021
Although numerous white dwarf stars host dusty debris disks, the temperature distribution of these stars differs significantly from the white dwarf population as a whole. Dusty debris disks exist exclusively around white dwarfs cooler than 27,000 K. This
Steckloff JK, Debes J, Steele A, Johnson B, Adams ER, Jacobson SA, Springmann A.   +6 more
europepmc   +3 more sources

Primordial or Secondary? Testing Models of Debris Disk Gas with ALMA [PDF]

The Astrophysical Journal, 2023
The origin and evolution of gas in debris disks are still not well understood. Secondary gas production from cometary material or a primordial origin have been proposed.
Gianni Cataldi, Yuri Aikawa, Kazunari Iwasaki, Sebastian Marino, Alexis Brandeker, Antonio Hales, Thomas Henning, Aya E. Higuchi, A. Meredith Hughes, Markus Janson, Quentin Kral, Luca Matrà, Attila Moór, Göran Olofsson, Seth Redfield, Aki Roberge   +15 more
doaj   +2 more sources

Giant Impacts and Debris Disk Morphology [PDF]

The Astrophysical Journal, 2023
Certain debris disks have nonaxisymmetric shapes in scattered light which are unexplained. The appearance of a disk depends on how its constituent Keplerian ellipses are arranged.
Joshua W. Jones, Eugene Chiang, Gaspard Duchêne, Paul Kalas, Thomas M. Esposito   +4 more
doaj   +2 more sources

JWST/NIRCam Detection of the Fomalhaut C Debris Disk in Scattered Light [PDF]

The Astrophysical Journal Letters
Observations of debris disks offer important insights into the formation and evolution of planetary systems. Though M dwarfs make up approximately 80% of nearby stars, very few M dwarf debris disks have been studied in detail—making it unclear how or if ...
Kellen Lawson, Joshua E. Schlieder, Jarron M. Leisenring, Ell Bogat, Charles A. Beichman, Geoffrey Bryden, András Gáspár, Tyler D. Groff, Michael W. McElwain, Michael R. Meyer, Thomas Barclay, Per Calissendorff, Matthew De Furio, Yiting Li, Marcia J. Rieke, Marie Ygouf, Thomas P. Greene, Julien H. Girard, Mario Gennaro, Jens Kammerer, Armin Rest, Thomas L. Roellig, Ben Sunnquist   +22 more
doaj   +2 more sources

Astrometric Accelerations as Dynamical Beacons: A Giant Planet Imaged inside the Debris Disk of the Young Star AF Lep [PDF]

Astrophysical Journal Letters, 2023
We present the direct-imaging discovery of a giant planet orbiting the young star AF Lep, a 1.2 M ⊙ member of the 24 ± 3 Myr β Pic moving group. AF Lep was observed as part of our ongoing high-contrast imaging program targeting stars with astrometric ...
Kyle Franson, B. Bowler, Yifan Zhou, T. Pearce, Daniella C. Bardalez Gagliuffi, L. Biddle, T. Brandt, J. Crepp, T. Dupuy, J. Faherty, R. Jensen-Clem, M. Morgan, A. Sanghi, C. Theissen, Q. Tran, Trevor N. Wolf   +15 more
semanticscholar   +1 more source

JWST/NIRCam Coronagraphy of the Young Planet-hosting Debris Disk AU Microscopii [PDF]

Astronomical Journal, 2023
High-contrast imaging of debris disk systems permits us to assess the composition and size distribution of circumstellar dust, to probe recent dynamical histories, and to directly detect and characterize embedded exoplanets. Observations of these systems
K. Lawson, J. Schlieder, J. Leisenring, Ell Bogat, C. Beichman, G. Bryden, Andr'as G'asp'ar, T. Groff, M. McElwain, M. Meyer, T. Barclay, P. Calissendorff, Matthew de Furio, M. Ygouf, A. Boccaletti, T. Greene, J. Krist, P. Plavchan, M. Rieke, T. Roellig, J. Stansberry, J. Wisniewski, E. Young   +22 more
semanticscholar   +1 more source

Morphology of the gas-rich debris disk around HD121617 with SPHERE observations in polarized light [PDF]

Astronomy & Astrophysics, 2023
Debris disks are the signposts of collisionally eroding planetesimal circumstellar belts, whose study can put important constraints on the structure of extrasolar planetary systems.
C. Perrot, J. Olofsson, Q. Kral, P. Th'ebault, M. Montesinos, G. Kennedy, A. Bayo, D. Iglesias, R. V. Holstein, C. P. L. -. O. D. P. -. U. Cit'e, Instituto de F'isica y Astronom'ia - Facultad de Ciencias - Valpara'iso, N. M. F. P. -. N. -. U. Valpara'iso, M. F. Astronomy, Escuela de Ciencias - Universidad Vina del Mar, D. E. U. O. Warwick, Centre for Exoplanets, Habitability - University of Warwick, E. S. O. –. Germany, S. O. Physics, A. U. O. Leeds, European Southern Observatory - Chile, Astronomy - Monash University, U. G. A. -. C. -. Ipag   +22 more
semanticscholar   +1 more source

Debris disk color with the Hubble Space Telescope [PDF]

Astronomy & Astrophysics, 2023
Multi-wavelength scattered light imaging of debris disks may inform dust properties including typical size and mineral composition. Existing studies have investigated a small set of individual systems across a variety of imaging instruments and filters ...
B. Ren, I. Rebollido, 'Elodie Choquet, Wenxia Zhou, M. Perrin, G. Schneider, J. Milli, S. Wolff, Christine H. Chen, J. Debes, J. Hagan, D. Hines, M. Millar-Blanchaer, L. Pueyo, A. Roberge, E. Serabyn, R. Soummer   +16 more
semanticscholar   +1 more source

Polarization of Circumstellar Debris Disk Light Echoes

The Astronomical Journal
Light echoes of debris disks around active stars can reveal disk structure and composition even when disks are not spatially resolved. Unfortunately, distinguishing reflected light from quiescent starlight and unexpected post-peak flare structure is ...
Austin J. King, Benjamin C. Bromley, Preston W. Harris, Scott J. Kenyon   +3 more
doaj   +3 more sources