Results 51 to 60 of about 7,087 (197)

Directly Imaging Circumstellar Debris Disks

, 2021
: Debris disks are a collection of dust grains and planetesimals around a star and are thought to contain the remnants of planet formation. Directly imaging debris disks and studying their morphologies is valuable for studying the planet formation ...

core  

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

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
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Giant Impacts and Debris Disk Morphology

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
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Decay of Planetary Debris Disks [PDF]

The Astrophysical Journal, 2005
We report new Spitzer 24 m photometry of 76 main-sequence A-type stars. We combine these results with previously reportedSpitzer24 m data and 24 and 25 m photometry from theInfrared Space Observatoryand the InfraredAstronomySatellite.Theresultisasampleof266starswithmasscloseto2.5M ,alldetectedtoatleastthe 7 level relative to their ...
G. H. Rieke, K. Y. L. Su, J. A. Stansberry, D. Trilling, G. Bryden, J. Muzerolle, B. White, N. Gorlova, E. T. Young, C. A. Beichman, K. R. Stapelfeldt, D. C. Hines   +11 more
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Millimeter Studies of Nearby Debris Disks

, 2017
At least 20% of nearby main sequence stars are known to be surrounded by disks of dusty material resulting from the collisional erosion of planetesimals, similar to asteroids and comets in our own Solar System.
MacGregor, Meredith Ann (5144465), MacGregor, Meredith Ann   +1 more
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MIRI MRS Observations of β Pictoris. I. The Inner Dust, the Planet, and the Gas

The Astrophysical Journal
We present JWST MIRI Medium Resolution Spectrograph (MRS) observations of the β Pictoris system. We detect an infrared excess from the central unresolved point source from 5 to 7.5 μ m which is indicative of dust within the inner ∼7 au of the system.
Kadin Worthen, Christine H. Chen, David R. Law, Cicero X. Lu, Kielan Hoch, Yiwei Chai, G. C. Sloan, B. A. Sargent, Jens Kammerer, Dean C. Hines, Isabel Rebollido, William Balmer, Marshall D. Perrin, Dan M. Watson, Laurent Pueyo, Julien H. Girard, Carey M. Lisse, Christopher C. Stark   +17 more
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Observations of circumstellar disks in scattered light with SPHERE at the VLT

Comptes Rendus. Physique, 2023
The technological developments initiated in the early 21$^{\rm st}$ century have led to the implementation of “planet finders” instruments on 8-m class telescopes which are in operation since 2014-2015. Such facilities are at the inception of significant
Boccaletti, Anthony
doaj   +1 more source

On the solar system—debris disk connection [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractThis paper emphasizes the connection between solar and extra-solar debris disks: how models and observations of the Solar System are helping us understand the debris disk phenomenon, and vice versa, how debris disks are helping us place our Solar System into context.
openaire   +2 more sources

The Edgeworth-Kuiper debris disk [PDF]

Astronomy and Astrophysics, 2010
18 pages, 14 figures, accepted for publication in A& ...
Vitense, Christian, Krivov, Alexander V., Löhne, Torsten   +2 more
openaire   +2 more sources

A Search for Collisions and Planet–Disk Interactions in the Beta Pictoris Disk with 26 Years of High-precision HST/STIS Imaging

The Astrophysical Journal
β Pictoris's well-studied debris disk and two known giant planets, in combination with the stability of the Hubble Space Telescope’s Space Telescope Imaging Spectrograph (HST/STIS) (and now also JWST), offers a unique opportunity to test planet–disk ...
Arin M. Avsar, Kevin Wagner, Dániel Apai, Christopher C. Stark, Mark C. Wyatt   +4 more
doaj   +1 more source