Results 41 to 50 of about 193 (77)

Scattering of exocomets by a planet chain: exozodi levels and the delivery of cometary material to inner planets

, 2018
Exocomets scattered by planets have been invoked to explain observations in multiple contexts, including the frequently found near- and mid-infrared excess around nearby stars arising from exozodiacal dust.
Sebastian Marino, Amy Bonsor, Mark C Wyatt, Quentin Kral   +3 more
core   +1 more source

Detection of Exocometary CO within the 440 Myr Old Fomalhaut Belt: A Similar CO+CO₂ Ice Abundance in Exocomets and Solar System Comets [PDF]

, 2017
Recent Atacama Large Millimeter/submillimeter Array observations present mounting evidence for the presence of exocometary gas released within Kuiper Belt analogs around nearby main-sequence stars.
P. Kalas, Shannon, A., Duchêne, Gaspard, Fitzgerald, MP, D. J. Wilner, L. Matrà, Panić, O, K. Y. L. Su, Graham, JR, A. M. Hughes, Holland, W. S., Shannon, A, M. Pan, Su, Kate Y. L., A. Shannon, W. S. Holland, Su, KYL, G. Duchene, Pan, M, Pan, Margaret, Duchene, G, Fitzgerald, Michael P., MacGregor, MA, M. P. Fitzgerald, Matrà, L, Wyatt, MC, Wilner, DJ, Kennedy, GM, Wyatt, Mark C., Wyatt, M. C., M. A. MacGregor, J. R. Graham, Fitzgerald, M. P., MacGregor, M. A., Hughes, AM, Clampin, M, Wilner, D. J., O. Panić, Kalas, P., Kennedy, G. M., Graham, J. R., Wilner, D., Clampin, M., Kennedy, Grant M., Hughes, A. M., MacGregor, Meredith A., Pan, M., Duchene, G., Matrà, L., Holland, WS, Panić, O., Shannon, Andrew, G. M. Kennedy, M. C. Wyatt, M. Clampin, Su, K. Y. L., Kalas, P   +56 more
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Size Limits on Tidal Debris around White Dwarfs: The Kilometer-size Barrier

The Astrophysical Journal Letters
Compact disks of planetary debris orbiting white dwarfs provide a crucial window into our understanding of evolved planetary systems. The formation of these disks has been widely modeled with tidal fragmentation of minor planets that are rubble piles ...
Jordan K. Steckloff, Dimitri Veras, Kathryn Volk   +2 more
doaj   +1 more source

New exocomets of $\beta$ Pic

, 2022
Comment: 8 pages, 13 Figs, 1 Table.
Pavlenko, Ya., Kulyk, I., Shubina, O., Vasylenko, M., Dobrycheva, D., Korsun, P.   +5 more
openaire   +1 more source

EXOCOMETS AT LARGE ORBITAL RADII AND THEIR INWARD TRANSPORT IN DEBRIS DISCS

, 2018
Planetary systems are not only composed of planets, but also of km-sized rocky and icy bodies that are confined within belts similar to the Asteroid and Kuiper belt in the Solar System.

core   +1 more source

Exocomets in the Proxima Centauri system and their importance for water transport [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
17 pages, 11 ...
Schwarz, R., Bazsó, Á., Georgakarakos, N., Loibnegger, B., Maindl, T. I., Bancelin, D., Pilat-Lohinger, E., Kislyakova, K. G., Dvorak, R., Dobbs-Dixon, I.   +9 more
openaire   +3 more sources

The evolution of exocomets and their source populations

We review the current state of knowledge of the long-term evolution of the small bodies that give rise to comets and exocomets, as well as their reservoirs. The active cometary phase is only transitory, and bodies that become comets pass from a source population, such as the Kuiper Belt, Oort Cloud or their extra-solar analogues, through the active ...
Mustill, Alexander J., Pearce, Tim, Bannister, Michele, Pfalzner, Susanne, Evensberget, Dag, Veras, Dimitri, Kokotanekova, Rosita, Hopkins, Matthew, Bodewits, Dennis, Seligman, Darryl Z., Rebollido, Isabel, Marschall, Raphael, Yang, Bin, Jaworska, Klaudia, Couto, Xabier Pérez   +14 more
openaire   +2 more sources

Data for "Upper limits on CN from exocomets transiting Beta Pictoris"

Spectra from beta pictoris and the intermediate cross correlation data products for the paper.Kenworthy, M., de Mooij, E., Brandeker, A., Opitom, C., Kiefer, F., & Fitzsimmons, A. (2025).
Brandeker, Alexis, Queen's University Belfast, School of Physics and Astronomy, Kenworthy, Matthew, Fitzsimmons, Alan, Kiefer, Flavien, de Mooij, Ernst, Opitom, Cyrielle; id_orcid   +7 more
core   +1 more source

Can Isotopologues Be Used as Biosignature Gases in Exoplanet Atmospheres? [PDF]

Life (Basel), 2023
Glidden A, Seager S, Petkowski JJ, Ono S.   +3 more
europepmc   +1 more source

Study of exocomet dynamics in the Kepler-90, Kepler-35 and Kepler-38 systems

, 2022
A descoberta de planetas fora do Sistema Solar tem motivado estudos de sistemas extrassolares, principalmente na busca de planetas do tipo Terra que sustentam condições de habitabilidade.
Santos, Nilce da Silva dos
core