Results 1 to 10 of about 31,620 (294)

Collisional Grooming of Debris Disks [PDF]

AIP Conference Proceedings, 2009
5 pages, Conference proceedings, "Exoplanets and Disks: Their Formation and Diversity" Kailua-Kona, Hawaii, 9-12 March 2009.
Marc J. Kuchner, Christopher C. Stark, Tomonori Usuda, Motohide Tamura, Miki Ishii   +4 more
openaire   +2 more sources

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
doaj   +1 more source

Formation of Gaps in Self-gravitating Debris Disks by Secular Resonance in a Single-planet System. II. Toward a Self-consistent Model

The Astrophysical Journal, 2023
High-resolution observations of several debris disks reveal structures such as gaps and spirals, suggestive of gravitational perturbations induced by underlying planets.
Antranik A. Sefilian, Roman R. Rafikov, Mark C. Wyatt   +2 more
doaj   +1 more source

Spitzer observations of the Hyades: Circumstellar debris disks at 625 Myr of age

, 2008
We use the Spitzer Space Telescope to search for infrared excess at 24, 70, and 160 micron due to debris disks around a sample of 45 FGK-type members of the Hyades cluster.
Augereau J. C., Jean‐Charles Augereau, Lucas A. Cieza, Morbidelli A., Tera F., Wetherill G. W., Wetherill G. W., William D. Cochran   +7 more
core   +3 more sources

A Direct Imaging Survey of Spitzer detected debris disks: Occurrence of giant planets in dusty systems [PDF]

, 2017
We describe a joint high contrast imaging survey for planets at Keck and VLT of the last large sample of debris disks identified by the Spitzer Space Telescope. No new substellar companions were discovered in our survey of 30 Spitzer-selected targets. We
Batygin, Konstantin, Bowler, Brendan P., Brandt, Timothy D., Bryan, Marta, Christiaens, Valentin, Hinkley, Sasha, Mawet, Dimitri, Meshkat, Tiffany, Morales, Farisa Y., Padgett, Deborah, Serabyn, Eugene, Stapelfeldt, Karl R., Wahhaj, Zahed   +12 more
core   +3 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

Evidence for Misalignment between Debris Disks and Their Host Stars

The Astrophysical Journal, 2023
We place lower limits on the obliquities between debris disks and their host stars for 31 systems by comparing their disk and stellar inclinations.
Spencer A. Hurt, Meredith A. MacGregor
doaj   +1 more source

A Spitzer Study of Debris Disks in the Young Nearby Cluster NGC 2232: Icy Planets Are Common around ~1.5-3 M☉ Stars [PDF]

, 2008
We describe Spitzer IRAC and MIPS observations of the nearby 25 Myr old open cluster NGC 2232. Combining these data with ROSAT All-Sky Survey observations, proper motions, and optical photometry/spectroscopy, we construct a list of highly probable ...
Currie, Thayne, Kenyon, Scott J., Plavchan, Peter   +2 more
core  

A Spitzer IRS Study of Debris Disks Around Planet-Host Stars

, 2010
Since giant planets scatter planetesimals within a few tidal radii of their orbits, the locations of existing planetesimal belts indicate regions where giant planet formation failed in bygone protostellar disks.
Beichman, Beichman, Beichman, Bertone, Bessell, Bryden, Bryden, Bryden, Butler, C. A. Beichman, Carpenter, Chen, Chen, Cochran, Cutri, Dodson-Robinson, Fischer, Fischer, Geoffrey Bryden, Goldreich, Hauschildt, Hillenbrand, Høg, Ida, John M. Carpenter, Johnson, Johnson, Kurucz, Kóspál, Lawler, Moro-Martín, Peletier, Perryman, Quillen, Sarah E. Dodson-Robinson, Sato, Su, Tanner, Trilling, Valenti, Wright, Wright   +41 more
core   +1 more source

Disk Radii and Grain Sizes in Herschel-Resolved Debris Disks

, 2014
(Abridged) The radii of debris disks and the sizes of their dust grains are tracers of the formation mechanisms and physical processes operating in these systems.
Bryden, Geoffrey, Eiroa, Carlos, Krivov, Alexander V., Marshall, Jonathan P., Montesinos, Benjamin, Moór, Attila, Pawellek, Nicole, Ábrahám, Péter   +7 more
core   +1 more source