Results 11 to 20 of about 551,103 (329)

A JWST MIRI MRS View of the η Tel Debris Disk and Its Brown Dwarf Companion

The Astrophysical Journal
We report JWST Mid-Infrared Instrument (MIRI) Medium Resolution Spectrograph (MRS) observations of the β Pic moving-group member, η Tel A, along with its brown dwarf binary companion, η Tel B.
Yiwei Chai, Christine H. Chen, Kadin Worthen, Alexis Li, Antranik A. Sefilian, William Balmer, Dean C. Hines, David R. Law, B. A. Sargent, Mark Wyatt, Cicero X. Lu, Marshall D. Perrin, Isabel Rebollido, Emily Rickman, G. C. Sloan   +14 more
doaj   +2 more sources

Fast and Slow Precession of Gaseous Debris Disks Around Planet-Accreting White Dwarfs [PDF]

, 2018
Spectroscopic observations of some metal-rich white dwarfs (WDs), believed to be polluted by planetary material, reveal the presence of compact gaseous metallic disks orbiting them.
Miranda, Ryan, Rafikov, Roman R.
core   +2 more sources

Debris Disks: Probing Planet Formation [PDF]

, 2018
Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on circumstellar disk ...
A Bonsor, A Bonsor, A Bonsor, A Brandeker, A Gáspár, A Gáspár, A Hardy, A Moro-Martín, A Moór, A Schneider, A Shannon, A Shannon, AJ Mustill, AJ Mustill, AJW Richert, AM Hughes, AM Hughes, AM Lagrange, AP Jackson, AP Jackson, AV Krivov, AV Krivov, AV Krivov, B Ercolano, B Mennesson, B Sibthorpe, BP Bowler, C Eistrup, C Schüppler, C Vitense, CC Stark, Christine H. Chen, CM Lisse, CM Telesco, D Carrera, D Li, D Tamayo, DA Fischer, DA Golimowski, E Chiang, EJ Lee, ER Nesvold, ER Nesvold, F Geiler, F. Kiefer, G Bryden, GM Kennedy, GM Kennedy, GM Kennedy, H Beust, H Beust, H Genda, HF Levison, HYA Meng, HYA Meng, HYA Meng, J Lieman-Sifry, J Péricaud, J Wisdom, J. Olofsson, JC Augereau, JH Rhee, JM Carpenter, JN Winn, JS Greaves, JS Greaves, K Heng, KYL Su, L Matrà, L Matrà, L Matrà, L Ricci, LA Cieza, LE Strubbe, M Booth, M Booth, M Pan, MA MacGregor, MA MacGregor, MA Muñoz-Gutiérrez, Maryam Tabeshian, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, N Kains, N Pawellek, NA Kaib, ND Thureau, NM Phillips, O Panić, P Faber, P Kalas, P Thébault, Q Kral, Q Kral, Q. Kral, R Smith, S Marino, S Marino, S Marino, S Rappaport, S. Krijt, SJ Kenyon, SJ Kenyon, SJ Kenyon, SJ Kenyon, SN Raymond, T Currie, T Löhne, T Löhne, T Takeuchi, TD Pearce, TD Pearce, TS Boyajian, V Faramaz, W Lyra, WRF Dent, X Zheng, Y Hasegawa, Á Kóspál, É Morey   +131 more
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Insights into Planet Formation from Debris Disks: I. The Solar System as an Archetype for Planetesimal Evolution [PDF]

, 2016
Circumstellar disks have long been regarded as windows into planetary systems. The advent of high sensitivity, high resolution imaging in the submillimeter where both the solid and gas components of disks can be detected opens up new possibilities for ...
Brenda C. Matthews, J. J. Kavelaars
openalex   +2 more sources

Discovery of molecular gas around HD 131835 in an APEX molecular line survey of bright debris disks [PDF]

, 2015
Debris disks are considered to be gas-poor, but recent observations revealed molecular or atomic gas in several 10-40 Myr old systems. We used the APEX and IRAM 30m radiotelescopes to search for CO gas in 20 bright debris disks.
Balog, Z., Csengeri, T., Curé, M., Grady, C., Güsten, R., Henning, Th., Juhász, A., Kiss, Cs., Kóspál, Á., Moór, A., Pascucci, I., Szabó, Gy. M., Vavrek, R., Ábrahám, P.   +13 more
core   +4 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   +5 more sources

Faint warm debris disks around nearby bright stars explored by AKARI and IRSF [PDF]

, 2016
Context: Debris disks are important observational clues for understanding planetary-system formation process. In particular, faint warm debris disks may be related to late planet formation near 1 AU.
74793, 74794, 74795, 74796, 74797, 74798, 74799, 74800, Fujiwara, Hideaki, Inutsuka, Shu-ichiro, Ishihara, Daisuke, Kaneda, Hidehiro, Kobayashi, Hiroshi, Nagayama, Takahiro, Onaka, Takashi, Takeuchi, Nami   +15 more
core   +4 more sources

Variations on Debris Disks. IV. An Improved Analytical Model for Collisional Cascades [PDF]

, 2017
We derive a new analytical model for the evolution of a collisional cascade in a thin annulus around a single central star. In this model, rmax the size of the largest object changes with time, , with 0.1–0.2.
Scott J. Kenyon, Benjamin C. Bromley
openalex   +3 more sources

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   +2 more sources

Planetary Collisions outside the Solar System: Time Domain Characterization of Extreme Debris Disks [PDF]

, 2015
Luminous debris disks of warm dust in the terrestrial planet zones around solar-like stars are recently found to vary, indicative of ongoing large-scale collisions of rocky objects.
Cook, Michael, Erdelyi, Emery, Maloney, Chris, McMath, James, Meng, Huan Y. A., Myers, Gordon, Persha, Gerald, Poshyachinda, Saran, Reichart, Daniel E., Rieke, George H., Rujopakarn, Wiphu, Su, Kate Y. L.   +11 more
core   +5 more sources