Results 51 to 60 of about 551,103 (329)

A Spitzer view of protoplanetary disks in the gamma Velorum cluster [PDF]

, 2008
We present new Spitzer Space Telescope observations of stars in the young ~5 Myr gamma Velorum stellar cluster. Combining optical and 2MASS photometry, we have selected 579 stars as candidate members of the cluster.
Baraffe I., D'Alessio P., De Marco O., De Marco O., J. Muzerolle, J. Stauffer, Jesús Hernández, Kharchenko N. V., Lee Hartmann, MacConnell D. J., Nuria Calvet, R. D. Jeffries, R. Gutermuth, Siess L.   +13 more
core   +2 more sources

Molecular Gas in Debris Disks around Young A-type Stars [PDF]

, 2017
According to the current paradigm of circumstellar disk evolution, gas-rich primordial disks evolve into gas-poor debris disks that are composed of second-generation dust.
A. Moór, M. Curé, Á. Kóspál, P. Ábrahám, T. Csengeri, C. Eiroa, Diah Gunawan, T. Henning, A. Hughes, A. Juhász, N. Pawellek, M. Wyatt   +11 more
semanticscholar   +1 more source

Observing planet-disk interaction in debris disks [PDF]

, 2012
Context. Structures in debris disks induced by planetdisk interaction are promising to provide valuable constraints on the existence and properties of embedded planets. Aims.
Apai, Ardila, Augereau, Backman, Boley, Burns, Corder, Dohnanyi, Draine, Ertel, Gardner, Golimowski, Greaves, Gustafson, Hillenbrand, Holmes, Hughes, J. Rodmann, Jewitt, Kalas, Kalas, Kalas, Kokubo, Krist, Krivov, Kuchner, Liou, Liseau, Liu, Makino, Makino, Makino, Marois, Moro-Martín, Moro-Martín, Nilsson, Roccatagliata, S. Ertel, S. Wolf, Stark, Stark, Swinyard, Vitense, Weingartner, Wolf, Wolf, Wolf, Wyatt, Wyatt, Wyatt   +49 more
core   +3 more sources

HD 104860 and HD 192758: Two Debris Disks Newly Imaged in Scattered Light with the Hubble Space Telescope [PDF]

, 2018
We present the first scattered-light images of two debris disks around the F8 star HD 104860 and the F0V star HD 192758, respectively ∼45 and ∼67 pc away.
É. Choquet, G. Bryden, M. Perrin, R. Soummer, J. Augereau, C. Chen, J. Debes, Elena Gofas-Salas, J. Hagan, D. Hines, D. Mawet, F. Morales, L. Pueyo, A. Rajan, B. Ren, G. Schneider, Christopher C. Stark, S. Wolff   +17 more
semanticscholar   +1 more source

Detection of Submillimeter-wave [C i] Emission in Gaseous Debris Disks of 49 Ceti and β Pictoris [PDF]

Proceedings of the International Astronomical Union, 2017
We have detected [C i] 3P1–3P0 emissions in the gaseous debris disks of 49 Ceti and β Pictoris with the 10 m telescope of the Atacama Submillimeter Telescope Experiment, which is the first detection of such emissions. The line profiles of [C i] are found
A. Higuchi, Aki Sato, T. Tsukagoshi, N. Sakai, K. Iwasaki, M. Momose, H. Kobayashi, D. Ishihara, Sakae Watanabe, H. Kaneda, S. Yamamoto   +10 more
semanticscholar   +1 more source

The Orbital Architecture and Debris Disks of the HR 8799 Planetary System [PDF]

Astrophysical Journal Supplement Series, 2018
The HR 8799 planetary system with four ≃10 mJup planets in wide orbits up to ≃70 au and orbital periods up to 500 yr has been detected with direct imaging.
K. Goździewski, C. Migaszewski
semanticscholar   +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

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

Polarization of stars with debris disks: comparing observations with models

, 2019
The $Herschel$ Space telescope carried out an unprecedented survey of nearby stars for debris disks. The dust present in these debris disks scatters and polarizes stellar light in the visible part of the spectrum.
Augereau, Jean-Charles, Bastien, Pierre, Simon, Amélie, Storer, Émilie, Vandeportal, Julien   +4 more
core   +2 more sources

CONSTRAINTS ON PLANETESIMAL COLLISION MODELS IN DEBRIS DISKS [PDF]

, 2016
Observations of debris disks offer a window into the physical and dynamical properties of planetesimals in extrasolar systems through the size distribution of dust grains.
M. MacGregor, D. Wilner, C. Chandler, L. Ricci, S. Maddison, S. Cranmer, S. Andrews, A. Hughes, A. Steele   +8 more
semanticscholar   +1 more source