Results 71 to 80 of about 7,087 (197)

Debris disks modeling and characterization: a case study approach to identifying debris disk morphology and asymmetry

Dodson-Robinson, Sarah E.According to the Catalog of Circumstellar Disks, 323 circumstellar disks have been resolved. What these observations show is that each disk presents its own challenge in terms of modeling and characterization, speaking to the ...
Yea, Inbok
core   +1 more source

Imaging of the Vega Debris System Using JWST/MIRI

The Astrophysical Journal
We present images of the Vega planetary debris disk obtained at 15.5, 23, and 25.5 μ m with the Mid-Infrared Instrument on JWST. The debris system is remarkably symmetric, smooth, and centered accurately on the star.
Kate Y. L. Su, András Gáspár, George H. Rieke, Renu Malhotra, Luca Matrá, Schuyler Grace Wolff, Jarron M. Leisenring, Charles Beichman, Marie Ygouf   +8 more
doaj   +1 more source

Structure in the ε Eridani Debris Disk

The Astrophysical Journal, 2005
New submillimeter images have been obtained of the dust disk around the nearby K2 V star e Eridani, with the total data set now spanning 5 yr. These images show the distribution of dusty debris generated by comet collisions, reflecting clearing and perturbations by planets, and may give insights to early conditions in the solar system.
Greaves, J. S., Holland, W. S., Wyatt, M. C., Dent, W. R. F., Robson, E. I., Coulson, I. M., Jenness, T., Moriarty-Schieven, G. H., Davis, G. R., Butner, H. M., Gear, W. K., Dominik, C., Walker, H. J.   +12 more
openaire   +1 more source

JWST-TST High Contrast: Asymmetries, Dust Populations, and Hints of a Collision in the β Pictoris Disk with NIRCam and MIRI

The Astronomical Journal
We present the first JWST Mid-Infrared Instrument (MIRI) and Near Infrared Camera (NIRCam) observations of the prominent debris disk around β Pictoris.
Isabel Rebollido, Christopher C. Stark, Jens Kammerer, Marshall D. Perrin, Kellen Lawson, Laurent Pueyo, Christine Chen, Dean Hines, Julien H. Girard, Kadin Worthen, Carl Ingerbretsen, Sarah Betti, Mark Clampin, David Golimowski, Kielan Hoch, Nikole K. Lewis, Cicero X. Lu, Roeland P. van der Marel, Emily Rickman, Sara Seager, Rémi Soummer, Jeff A. Valenti, Kimberly Ward-Duong, C. Matt Mountain   +23 more
doaj   +1 more source

Discovery of a Debris Disk around TWA 20

The Astrophysical Journal
We report the discovery of a debris disk surrounding the M3 star TWA 20, revealed by JWST coronagraphic observations using the Near Infrared Camera. With reference differential imaging (RDI), we resolve the disk in scattered light in the F200W filter at ...
Skyler Palatnick, Maxwell A. Millar-Blanchaer, Jingwen Zhang, Kellen Lawson, Briley L. Lewis, Katie A. Crotts, Aarynn L. Carter, Beth Biller, Julien H. Girard, Sebastian Marino, Raphaël Bendahan-West, Giovanni M. Strampelli, Andrew D. James, Klaus Subbotina Stephenson, Rodrigo Ferrer-Chavez, Mark Booth, Ben J. Sutlieff, Aniket Sanghi, Clémence Fontanive, Emily Rickman, Isabel Rebollido, Kielan Hoch, William O. Balmer   +22 more
doaj   +1 more source

CONSTRAINTS ON PLANETESIMAL COLLISION MODELS IN DEBRIS DISKS

The Astrophysical Journal, 2016
ABSTRACT 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. In particular, the millimeter spectral index of thermal dust emission encodes information on the grain size distribution. We have made new VLA observations of
Meredith A. MacGregor, David J. Wilner, Claire Chandler, Luca Ricci, Sarah T. Maddison, Steven R. Cranmer, Sean M. Andrews, A. Meredith Hughes, Amy Steele   +8 more
openaire   +3 more sources

A Uniform Analysis of Debris Disks with the Gemini Planet Imager. I. An Empirical Search for Perturbations from Planetary Companions in Polarized Light Images

The Astrophysical Journal
The Gemini Planet Imager (GPI) has excelled in imaging debris disks in the near-infrared. The GPI Exoplanet Survey imaged 24 debris disks in polarized H -band light, while other programs observed half of these disks in polarized J and/or K 1 bands. Using
Katie A. Crotts, Brenda C. Matthews, Gaspard Duchêne, Thomas M. Esposito, Ruobing Dong, Justin Hom, Rebecca Oppenheimer, Malena Rice, Schuyler G. Wolff, Christine H. Chen, Clarissa R. Do Ó, Paul Kalas, Briley L. Lewis, Alycia J. Weinberger, David J. Wilner, Mark Ammons, Pauline Arriaga, Robert J. De Rosa, John H. Debes, Michael P. Fitzgerald, Eileen C. Gonzales, Dean C. Hines, Sasha Hinkley, A. Meredith Hughes, Ludmilla Kolokolova, Eve J. Lee, Ronald A. López, Bruce Macintosh, Johan Mazoyer, Stanimir Metchev, Maxwell A. Millar-Blanchaer, Eric L. Nielsen, Jenny Patience, Marshall D. Perrin, Laurent Pueyo, Fredrik T. Rantakyrö, Bin B. Ren, Glenn Schneider, Remi Soummer, Christopher C. Stark   +39 more
doaj   +1 more source

Molecular Gas in Debris Disks around Young A-type Stars

, 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.
Attila Moór, Wyatt, M., Kóspál,, Á., Curé, M., Gunawan, D., Attila Juhász, Henning, T., Timea Csengeri, Diah Gunawan, Mark Wyatt, Hughes, A., Moór, A., Péter Ábrahám, Nicole Pawellek, Csengeri, T., Juhász, A., Thomas Henning, A. Meredith Hughes, Ábrahám, P., Eiroa, C., Pawellek, N., Ágnes Kóspál, Carlos Eiroa, Michel Curé   +23 more
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Reduction and Archiving of Multiwavelength, Polarized-intensity Debris-disk Observations with the Gemini Planet Imager

The Astrophysical Journal Supplement Series
The Gemini Planet Imager (GPI), an extreme adaptive optics instrument on Gemini South, has been pivotal in the advancement of the debris-disk field.
Katie A. Crotts, Thomas M. Esposito, Brenda C. Matthews, Gaspard Duchêne, Christine H. Chen, Justin Hom, Paul Kalas, Briley L. Lewis, Stanimir Metchev, Maxwell Millar-Blanchaer, Deborah Padgett, Marshall Perrin, Bin Ren   +12 more
doaj   +1 more source

NEAR-INFRARED IMAGING OF WHITE DWARFS WITH CANDIDATE DEBRIS DISKS

, 2014
We have carried out JHK(s) imaging of 12 white dwarf debris disk candidates from the WIRED Sloan Digital Sky Survey Data Release 7 catalog, aiming to confirm or rule out disks among these sources.
Wang, Zhongxiang, Tziamtzis, Anestis, Wang, Xuebing   +2 more
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