Results 41 to 50 of about 7,087 (197)

THE DEBRIS DISK AROUND HR 8799 [PDF]

The Astrophysical Journal, 2009
We have obtained a full suite of Spitzer observations to characterize the debris disk around HR 8799 and to explore how its properties are related to the recently discovered set of three massive planets orbiting the star. We distinguish three components to the debris system: (1) warm dust (T ~150 K) orbiting within the innermost planet; (2) a broad ...
Su, K. Y. L., Rieke, G. H., Stapelfeldt, K. R., Malhotra, R., Bryden, G., Smith, P. S., Misselt, K. A., Moro-Martin, A., Williams, J. P.   +8 more
openaire   +2 more sources

A catalog of collected debris disks: properties, classifications and correlations between disks and stars/planets

, 2023
We have collected a catalog of 1095 debris disks with properties and classification (resolved, planet, gas) information. From the catalog, we defined a less biased sample with 612 objects and presented the distributions of their stellar and disk ...
Cao, Peng-cheng, Liu, Qiong, Huang, Dong, Liao, Neng-Hui, Yang, Qian-cheng   +4 more
core   +1 more source

Cold Debris Disks as Strategic Targets for the 2020s [PDF]

, 2019
Cold debris disks ...
Moro-Martín, Amaya, Sivramakrishnan, Anand, Ygouf, Marie, Mazoyer, Johan, Choquet, Élodie, Debes, John, Hines, Dean, Mennesson, Bertrand, Duchêne, Gaspard, Chen, Christine, Dodson-Robinson, Sally, Kalas, Paul, Girard, Julien, Millar-Blanchaer, Max A., Lisse, Carey M., Debes, John H., Stark, Chris, Douglas, Ewan S., Mawet, Dimitri, Currie, Thayne, Arriaga, Pauline, Faramaz, Virginie C., Wang, Jason   +22 more
core   +1 more source

Using 3.4 μm Variability toward White Dwarfs as a Signpost of Remnant Planetary Systems

The Astrophysical Journal
Roughly 2% of white dwarfs harbor planetary debris disks detectable via infrared excesses, but only a few percent of these disks show a gaseous component, distinguished by their double-peaked emission at the near-infrared calcium triplet.
Joseph A. Guidry, J. J. Hermes, Kishalay De, Lou Baya Ould Rouis, Brison B. Ewing, B. C. Kaiser   +5 more
doaj   +1 more source

Sequencing Silicates in the Spitzer Infrared Spectrograph Debris Disk Catalog. I. Methodology for Unsupervised Clustering

The Astrophysical Journal Supplement Series
Debris disks, which consist of dust, planetesimals, planets, and gas, offer a unique window into the mineralogical composition of their parent bodies, especially during the critical phase of terrestrial planet formation spanning 10 yr to a few hundred ...
Cicero X. Lu, Tushar Mittal, Christine H. Chen, Alexis Y. Li, Kadin Worthen, B. A. Sargent, Carey M. Lisse, G. C. Sloan, Dean C. Hines, Dan M. Watson, Isabel Rebollido, Bin B. Ren, Joel D. Green   +12 more
doaj   +1 more source

Molecular gas in young debris disks

, 2016
Debris disks are generally thought to be the gas poor descendants of protoplanetary disks. While this characteristic may be true for most debris systems, recent surveys in rotational transitions of carbon monoxide led to a growing sample of debris disks ...
Moór, Attila (5266990), Moór, Attila
core   +1 more source

The Disks In Scorpius–Centaurus Survey (DISCS). I. Four Newly Resolved Debris Disks in Polarized Intensity Light

The Astronomical Journal
The presence of infrared excesses around stars directly correlates with spatially resolved imaging detections of circumstellar disks at both millimeter and optical/near-infrared wavelengths.
Justin Hom, Thomas M. Esposito, Katie A. Crotts, Gaspard Duchêne, Jennifer Patience, Johan Mazoyer, Robert J. De Rosa, Christine H. Chen, Paul Kalas, Bruce Macintosh, Brenda C. Matthews   +10 more
doaj   +1 more source

How hard is dust in debris disks?

Astronomy & Astrophysics
The observational appearance of debris disks is largely controlled by collisional grinding of their dust grains. However, the mechanical strength of dust at sizes in the micrometer to millimeter range is poorly known.
Stein Tobias, Krivov Alexander V., Löhne Torsten   +2 more
doaj   +1 more source

AN ATCA SURVEY OF DEBRIS DISKS AT 7 MILLIMETERS [PDF]

The Astrophysical Journal, 2015
We present Australia Telescope Compact Array continuum observations at a wavelength of 6.8 mm of five debris disks: β Pictoris, q1 Eridani, HD 107146, HD 181327, and HD 95086. These observations provide the detection at the longest wavelengths obtained to date for all these debris disks.
L. Ricci, S. T. Maddison, D. Wilner, M. A. MacGregor, C. Ubach, J. M. Carpenter, L. Testi   +6 more
openaire   +3 more sources

HERSCHEL’S “COLD DEBRIS DISKS”: BACKGROUND GALAXIES OR QUIESCENT RIMS OF PLANETARY SYSTEMS? [PDF]

, 2013
Infrared excesses associated with debris disk host stars detected so far, peak at wavelengths around ~100 μm or shorter. However, six out of 31 excess sources studied in the Herschl ͣ Open Time Key Programme, DUNES, have been seen to show significant ...
Carlos del Burgo Díaz
core