Results 41 to 50 of about 221,766 (238)

Millimeter Studies of Nearby Debris Disks

, 2019
At least 20% of nearby main sequence stars are known to be surrounded by disks of dusty material resulting from the collisional erosion of planetesimals, similar to asteroids and comets in our own Solar System.
MacGregor, Meredith Ann
core   +3 more sources

JWST/NIRCam Detection of the Fomalhaut C Debris Disk in Scattered Light

The Astrophysical Journal Letters
Observations of debris disks offer important insights into the formation and evolution of planetary systems. Though M dwarfs make up approximately 80% of nearby stars, very few M dwarf debris disks have been studied in detail—making it unclear how or if ...
Kellen Lawson, Joshua E. Schlieder, Jarron M. Leisenring, Ell Bogat, Charles A. Beichman, Geoffrey Bryden, András Gáspár, Tyler D. Groff, Michael W. McElwain, Michael R. Meyer, Thomas Barclay, Per Calissendorff, Matthew De Furio, Yiting Li, Marcia J. Rieke, Marie Ygouf, Thomas P. Greene, Julien H. Girard, Mario Gennaro, Jens Kammerer, Armin Rest, Thomas L. Roellig, Ben Sunnquist   +22 more
doaj   +1 more source

Planetesimal/Debris Disks

, 2023
Review chapter of the book "Planetary Systems Now", to be published by World ...
openaire   +2 more sources

Decay of Planetary Debris Disks [PDF]

The Astrophysical Journal, 2005
We report new Spitzer 24 m photometry of 76 main-sequence A-type stars. We combine these results with previously reportedSpitzer24 m data and 24 and 25 m photometry from theInfrared Space Observatoryand the InfraredAstronomySatellite.Theresultisasampleof266starswithmasscloseto2.5M ,alldetectedtoatleastthe 7 level relative to their ...
G. H. Rieke, K. Y. L. Su, J. A. Stansberry, D. Trilling, G. Bryden, J. Muzerolle, B. White, N. Gorlova, E. T. Young, C. A. Beichman, K. R. Stapelfeldt, D. C. Hines   +11 more
openaire   +1 more source

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.
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, Kóspál, Ágnes, Curé, Michel, Moór, Attila, Ábrahám, Péter, Csengeri, Tímea   +28 more
core   +2 more sources

Bioprinted Stiffness‑Tunable Pancreatic Microniches to Decode Early Tumor Initiation Mechanisms

Advanced Healthcare Materials, EarlyView.
Stiffness‐tunable GelMA microniches generated by microvalve bioprinting preserve wild‐type acinar identity while revealing a nonlinear, Kras‐dependent response to matrix mechanics. Intermediate stiffness promotes acinar‐to‐ductal metaplasia and proliferation, defining a permissive mechanical window.
Aurelien Mazet, Charles Handschin, Theo Desigaux, Nathalie Dusserre, Marie‐Laure Stachowicz, Shane Fennell, Malou Lea, Silvia Arcucci, Benoît Thibault, Jean‐Christophe Fricain, Julie Guillermet‐Guibert, Hugo Oliveira   +11 more
wiley   +1 more source

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)

Astronomy & Astrophysics
Context. Debris disks – collisionally sustained belts of dust and sometimes gas around main sequence stars – are remnants of planet formation processes and are found in systems ≳10 Myr old.
Zawadzki B., Fehr A., Hughes A. M., Mansell E., Kittling J., Han Y., Hou C., Pan M., Milli J., Olofsson J., Pearce T., Sefilian A. A., Nurmohamed A., Lee J., Mpofu Y., Bonduelle M., Booth M., Brennan A., del Burgo C., Carpenter J. M., Cataldi G., Chiang E., Ertel S., Henning Th., Jankovic M. R., Kennedy G. M., Kóspál Á., Krivov A. V., Lovell J. B., Luppe P., MacGregor M. A., Mac Manamon S., Marino S., Marshall J. P., Matrà L., Moór A., Pérez S., Weber P., Wilner D. J., Wyatt M. C.   +39 more
doaj   +3 more sources

On the solar system—debris disk connection [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractThis paper emphasizes the connection between solar and extra-solar debris disks: how models and observations of the Solar System are helping us understand the debris disk phenomenon, and vice versa, how debris disks are helping us place our Solar System into context.
openaire   +2 more sources

Observations, Modeling, and Theory of Debris Disks [PDF]

, 2014
to appear in Protostars & Planets VI.
Matthews, Brenda C., Krivov, Alexander V., Wyatt, Mark C., Bryden, Geoff, Eiroa, Carlos   +4 more
openaire   +2 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