Results 81 to 90 of about 398,118 (263)

On the Planetary Interpretation of Multiple Gaps and Rings in Protoplanetary Disks Seen By ALMA [PDF]

Astrophysical Journal, 2019
It has been recently suggested that the multiple concentric rings and gaps discovered by ALMA in many protoplanetary disks may be produced by a single planet, as a result of the complex propagation and dissipation of the multiple spiral density waves it ...
Ryan Miranda, R. Rafikov
semanticscholar   +1 more source

A statistical investigation into relationships between the IIE irons and the ordinary, F and “HH” chondrites

Meteoritics &Planetary Science, Volume 60, Issue 10, Page 2376-2400, October 2025.
Abstract It has been proposed that IIE iron meteorites formed through impact processes on a parent body that was composed of either the H chondrites or a much‐debated fourth ordinary chondrite group, the HH chondrites. To resolve this debate, we have compiled a large dataset for the ordinary chondrites, low‐fayalite ungrouped chondrites, and IIE irons,
Rachel S. Kirby, Penelope L. King, Andrew G. Tomkins   +2 more
wiley   +1 more source

Substructures in Compact Disks of the Taurus Star-forming Region

The Astrophysical Journal, 2023
Observations of substructure in protoplanetary disks have largely been limited to the brightest and largest disks, excluding the abundant population of compact disks, which are likely sites of planet formation.
Shangjia Zhang, Matt Kalscheur, Feng Long, Ke Zhang, Deryl E. Long, Edwin A. Bergin, Zhaohuan Zhu, Leon Trapman   +7 more
doaj   +1 more source

The origin of short-lived radionuclides and the astrophysical environment of solar system formation

, 2008
Based on early solar system abundances of short-lived radionuclides (SRs), such as $^{26}$Al (T$_{1/2} = 0.74$ Myr) and $^{60}$Fe (T$_{1/2} = 1.5$ Myr), it is often asserted that the Sun was born in a large stellar cluster, where a massive star ...
Amelin Y., Amelin Y., Anders Meibom, Boss A. P., de Graauw T., Knee L. B. G., Knodlseder J., Larson R. B., Matthieu Gounelle, Meyer B. S., Quitte G., Regelous M., Scalo J. M., Schaller G., Sugiura N., Tachibana S.   +15 more
core   +1 more source

disksurf: Extracting the 3D Structure of Protoplanetary Disks [PDF]

, 2021
Richard Teague, Charles J. Law, Jane Huang, Feilong Meng   +3 more
openalex   +1 more source

ALMA survey of Class II protoplanetary disks in Corona Australis: a young region with low disk masses [PDF]

Astronomy & Astrophysics, 2019
Context. In recent years, the disk populations in a number of young star-forming regions have been surveyed with the Atacama Large Millimeter/submillimeter Array (ALMA).
P. Cazzoletti, C. Manara, H. Liu, E. V. Dishoeck, S. Facchini, J. Alcalá, M. Ansdell, L. Testi, Jonathan P. Williams, C. Carrasco-González, R. Dong, J. Forbrich, M. Fukagawa, R. Galv'an-Madrid, N. Hirano, M. Hogerheijde, Y. Hasegawa, T. Muto, P. Pinilla, M. Takami, Motohide Tamura, M. Tazzari, J. Wisniewski   +22 more
semanticscholar   +1 more source

Sites of Planet Formation in Binary Systems. I. Evidence for Disk−Orbit Alignment in the Close Binary FO Tau

The Astronomical Journal
Close binary systems present challenges to planet formation. As binary separations decrease, so do the occurrence rates of protoplanetary disks in young systems and planets in mature systems.
Benjamin M. Tofflemire, Lisa Prato, Adam L. Kraus, Dominique Segura-Cox, G. H. Schaefer, Rachel Akeson, Sean Andrews, Eric L. N. Jensen, Christopher M. Johns-Krull, J. J. Zanazzi, M. Simon   +10 more
doaj   +1 more source

Dust in protoplanetary disks: observations*

EPJ Web of Conferences, 2015
Solid particles, usually referred to as dust, are a crucial component of interstellar matter and of planet forming disks surrounding young stars. Despite the relatively small mass fraction of ≈1% (in the solar neighborhood of our galaxy; this number may ...
Waters L.B.F.M.
doaj   +1 more source

ALMA SURVEY OF LUPUS PROTOPLANETARY DISKS. I. DUST AND GAS MASSES [PDF]

, 2016
We present the first high-resolution sub-millimeter survey of both dust and gas for a large population of protoplanetary disks. Characterizing fundamental properties of protoplanetary disks on a statistical level is critical to understanding how disks ...
M. Ansdell, Jonathan P. Williams, N. Marel, J. Carpenter, G. Guidi, M. Hogerheijde, G. Mathews, C. Manara, A. Miotello, A. Natta, I. Oliveira, M. Tazzari, L. Testi, E. V. Dishoeck, S. V. Terwisga   +14 more
semanticscholar   +1 more source

Chemistry in Externally FUV-irradiated Disks in the Outskirts of the Orion Nebula Cluster

The Astrophysical Journal
Most stars are born in stellar clusters, and their protoplanetary disks, which are the birthplaces of planets, can, therefore, be affected by the radiation of nearby massive stars.
Javiera K. Díaz-Berríos, Viviana V. Guzmán, Catherine Walsh, Karin I. Öberg, L. Ilsedore Cleeves, Elizabeth Artur de la Villarmois, John Carpenter   +6 more
doaj   +1 more source