Results 91 to 100 of about 11,561 (252)

A Population Synthesis Study on the Formation of Cold Jupiters from Truncated Planetesimal Disks

The Astrophysical Journal
The occurrence rate of giant planets increases with orbital period and turns over at a location that roughly corresponds to the snowline of solar-type stars.
Kangrou Guo, Masahiro Ogihara, Shigeru Ida, Yasunori Hori, Kaiming Cui, Fabo Feng   +5 more
doaj   +1 more source

Planetesimals around stars with TESS (PAST) – II. An M dwarf ‘dipper’ star with a long-lived disc in the TESS continuous viewing zone [PDF]

, 2022
Eric Gaidos, Andrew W. Mann, Bárbara Rojas-Ayala, Gregory A. Feiden, Mackenna L. Wood, Suchitra Narayanan, Megan Ansdell, Thomas L. Jacobs, Daryll M. LaCourse   +8 more
openalex   +1 more source

Nondestructive analysis of Bennu samples toward comparative studies with Ryugu samples

Meteoritics &Planetary Science, Volume 61, Issue 1, Page 3-16, January 2026.
Abstract Analyzing primitive extraterrestrial samples from asteroids is key to understanding the evolution of the early solar system. The OSIRIS‐REx mission returned samples from the B‐type asteroid Bennu, providing a valuable opportunity to compare them with the Ryugu samples collected by the Hayabusa2 mission.
Ryota Fukai, Masahiro Nishimura, Koki Yumoto, Yuichiro Cho, Yuta Shimizu, Moe Matsuoka, Eri Tatsumi, Soichiro Furukawa, Ryosuke Sakurai, Toru Yada, Kentaro Hatakeda, Kasumi Yogata, Yuma Enokido, Rui Tahara, Akiko Miyazaki, Seiya Kawasaki, Rei Kanemaru, Seiji Sugita, Shoki Mori, Shumpei Nakahara, Yuta Aikyo, Hideaki Miyamoto, Cedric Pilorget, Damien Loizeau, Laura Nardelli, Rachel Sheppard, Cateline Lantz, Lucie Riu, Jean‐Pierre Bibring, Rosario Brunetto, Tatsuaki Okada, Masanao Abe, Tomohiro Usui   +32 more
wiley   +1 more source

Fast accretion of small planetesimals by protoplanetary cores

, 2003
We explore the dynamics of small planetesimals coexisting with massive protoplanetary cores in a gaseous nebula. Gas drag strongly affects the motion of small bodies leading to the decay of their eccentricities and inclinations, which are excited by the ...
Greenberg J. M., Hasegawa M., Ida S., R. R. Rafikov, Weidenschilling S. J.   +4 more
core   +2 more sources

Modeling enstatite chondrites: Reduced rocks with a pinch of oxidized material (affected by varying H2O(g)) derived from planetesimals shocked during the epoch of giant–planet migration

Meteoritics &Planetary Science, Volume 61, Issue 1, Page 122-139, January 2026.
Abstract The O‐, N‐, Mo‐, Ru‐, Os‐, Cr‐, Ti‐, Ni‐, Fe‐, Nd‐, Ca‐, Zn‐, Sr‐, and Mg‐isotopic compositions of enstatite chondrites are essentially identical to those of the Earth and Moon. These correspondences suggest enstatite chondrites formed at ≈1 AU as the only known chondrite groups that accreted in the vicinity of a major planet. Bulk Earth has a
Alan E. Rubin
wiley   +1 more source

Mechanochemical Reactivity of Ribonucleosides Mediated by Inorganic Species: Implications for Extraterrestrial Organic Matter Interpretation

Applied Sciences
Metal species and carbonate are often found as minerals in extraterrestrial rocky bodies. Based on this, the mechanochemical-induced degradation of canonical purine and pyrimidine ribonucleosides into their corresponding nucleobases mediated by some of ...
Gustavo P. Maia, Catarina Gonçalves, Ana J. Carvalho, Vânia André, Adelino Galvão, Ana P. C. Ribeiro, Pedro F. Pinheiro, José Armando Luísa da Silva   +7 more
doaj   +1 more source

When and why formation of large bodies in circumstellar discs could take place?

EPJ Web of Conferences, 2013
We outlined the scenario of the planetary system formation, where large bodies are formed on the stage of massive discs. On this stage the whole of factors: chemical composition, chemical catalytic reactions, the disc self- gravitation, the increased ...
Stadnichenko Olga A., Stoyanovskaya Olga P., Snytnikov Valeriy N.   +2 more
doaj   +1 more source

Water transport throughout the TRAPPIST-1 system: the role of planetesimals [PDF]

, 2020
Vladimir Đošović, Bojan Novakovć, Branislav Vukotć, Milan M. Ćirković   +3 more
openalex   +1 more source

Radially resolved simulations of collapsing pebble clouds in protoplanetary discs

, 2017
We study the collapse of pebble clouds with a statistical model to find the internal structure of comet-sized planetesimals. Pebble-pebble collisions occur during the collapse and the outcome of these collisions affect the resulting structure of the ...
Jansson, Karl Wahlberg, Johansen, Anders
core   +1 more source

Planet Formation In Highly Inclined Binary Systems I. Planetesimals Jump Inwards And Pile Up

, 2011
Most detected planet-bearing binaries are in wide orbits, for which a high inclination, $i_B$, between the binary orbital plane and the plane of the planetary disk around the primary is likely to be common.
Armitage, Chatterjee, Cieza, Cuzzi, Cuzzi, Duchêne, Duquennoy, Eggenberger, Fabrycky, Giuppone, Guedes, Haghighipour, Haghighipour, Hatzes, Heppenheimer, Holman, Ida, Jensen, Ji-Lin Zhou, Ji-Wei Xie, Jian Ge, Kley, Kokubo, Larwood, Lee, Levison, Lithwick, Marzari, Mathieu, Matthew J. Payne, Monin, Natta, Pascucci, Philippe Thébault, Prša, Queloz, Quintana, Quintana, Rafikov, Rafikov, Safronov, Slawson, Stewart, Takeda, Takeuchi, Weidenschilling, Weidenschilling, Wu, Wu, Xie, Xie, Xie, Xie, Youdin, Youdin, Youdin, Youdin   +56 more
core   +2 more sources