Results 111 to 120 of about 55,496 (241)

Radial transport and nebular thermal processing of millimeter‐sized solids in the Solar protoplanetary disk inferred from Cr‐Ti‐O isotope systematics of chondrules

Meteoritics &Planetary Science, Volume 59, Issue 12, Page 3282-3304, December 2024.
Abstract Understanding the material transport and mixing processes in the Solar protoplanetary disk provides important constraints on the origin of chemical and isotopic diversities of our planets. The limited extent of radial transport and mixing between the inner and outer Solar System has been suggested based on a fundamental isotopic dichotomy ...
Kohei Fukuda, Yuki Hibiya, Craig R. Kastelle, Katsuhiko Suzuki, Tsuyoshi Iizuka, Katsuyuki Yamashita, Thomas E. Helser, Noriko T. Kita   +7 more
wiley   +1 more source

Chemo-dynamical deuterium fractionation in the early solar nebula: The origin of water on Earth and in asteroids and comets

, 2014
Formation and evolution of water in the Solar System and the origin of water on Earth constitute one of the most interesting questions in astronomy. The prevailing hypothesis for the origin of water on Earth is by delivery through water-rich small Solar ...
Albertsson, T., Henning, Th., Semenov, D.   +2 more
core   +1 more source

The Meteoritical Society: Business from 2023 to 2024

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 680-696, March 2025.
Nancy L. Chabot, Jutta Zipfel, Tasha L. Dunn   +2 more
wiley   +1 more source

Origin and Loss of nebula-captured hydrogen envelopes from "sub"- to "super-Earths" in the habitable zone of Sun-like stars [PDF]

, 2014
We investigate the origin and loss of captured hydrogen envelopes from protoplanets between `sub-Earth'-like bodies of 0.1$M_{\oplus}$ up to `super-Earths' with 5$M_{\oplus}$ in the HZ of a Sun like G star, assuming their rocky cores had formed before the nebula dissipated.
arxiv   +1 more source

A Critical Examination of the X-Wind Model for Chondrule and Calcium-rich, Aluminum-rich Inclusion Formation and Radionuclide Production

, 2010
Meteoritic data, especially regarding chondrules and calcium-rich, aluminum-rich inclusions (CAIs), and isotopic evidence for short-lived radionuclides (SLRs) in the solar nebula, potentially can constrain how planetary systems form.
Alan P. Boss, Anderson, Bacciotti, Beckett, Beckett, Blandford, Boley, Boss, Boss, Boss, Bouvier, Chevalier, Chiang, Ciesla, Coffey, Connelly, Connolly, Connolly, Connolly, Cuzzi, Cuzzi, Cuzzi, Cuzzi, Davis, Desch, Desch, Desch, Desch, Desch, Dodd, Dominik, Ebel, Eisner, Fedkin, Fedkin, Feigelson, Fitoussi, Gaidos, Getman, Gooding, Goswami, Goswami, Gounelle, Gounelle, Gounelle, Grossman, H. C. Connolly, Harker, Hewins, Hewins, Hewins, Hsu, Huss, Jacobsen, Jacobsen, Jones, Jones, Jones, Jones, Kita, Kita, Kita, Klerner, Koyama, Krot, Königl, Lauretta, Lee, Lee, Lee, Lee, Levy, Leya, Liffman, Liu, Lodders, Lofgren, Looney, M. A. Morris, MacPherson, MacPherson, MacPherson, McKeegan, Meibom, Meyer, Miura, Morris, Murty, Ouellette, Ouellette, Ouellette, Palme, Paque, Paque, Pilipp, Preibisch, Pudritz, Ray, Russell, Russell, S. J. Desch, Sahijpal, Sanders, Sargent, Scott, Shu, Shu, Shu, Simon, Simon, Skinner, Srinivasan, Tachibana, Takigawa, Teitler, Tominaga, Umeda, Umeda, Ushikubo, Vanhala, Wadhwa, Wadhwa, Ward-Thompson, Wasserburg, Wasserburg, Weidenschilling, Weidenschilling, Weisberg, Yu   +128 more
core   +1 more source

First direct detection of large polycyclic aromatic hydrocarbons on asteroid (162173) Ryugu samples: An interstellar heritage

Natural Sciences, Volume 4, Issue 4, October 2024.
Large free aromatic species, with up to 61 carbon atoms, were detected in grains of the Ryugu carbonaceous asteroid using ultra‐sensitive two‐step laser mass spectrometry. This discovery confirms the presence of large polycyclic aromatic hydrocarbons in the interstellar medium and provides new information on the formation and evolution of organic ...
Hassan Sabbah, Ghylaine Quitté, Karine Demyk, Christine Joblin   +3 more
wiley   +1 more source

The Bombardment History of the Giant Planet Satellites

The Planetary Science Journal
The origins of the giant planet satellites are debated, with scenarios including formation from a protoplanetary disk, sequential assembly from massive rings, and recent accretion after major satellite–satellite collisions.
William F. Bottke, David Vokrouhlický, David Nesvorný, Raphael Marschall, Alessandro Morbidelli, Rogerio Deienno, Simone Marchi, Michelle Kirchoff, Luke Dones, Harold F. Levison   +9 more
doaj   +1 more source

Exploring the Ionized Core of the Proto-Planetary Nebula CRL 618 and Its Vicinity with ALMA

Galaxies
Proto- and young planetary nebulae comprise dense circumstellar envelopes made of molecular gas and dust, some of which hide compact ionized cores that host stellar systems with hot objects, and show high-velocity bipolar outflows launched from inside ...
José Pablo Fonfría, Carmen Sánchez Contreras, Daniel Tafoya, Patricia Fernández-Ruiz, Arancha Castro-Carrizo, Javier Alcolea, Valentín Bujarrabal   +6 more
doaj   +1 more source

Formation of Methanol via Fischer‐Tropsch Catalysis by Cosmic Iron Sulphide

ChemPhysChem, Volume 25, Issue 17, September 2, 2024.
Periodic quantum mechanical simulations evidence the potentiality to synthesise methanol through a Fischer‐Tropsch mechanism in different astrophysical environments facilitated by the catalytic properties of cosmic FeS grains, which are enhanced by the presence of naturally‐occurring point surface defects.
Berta Martinez‐Bachs, Alexia Anguera‐Gonzalez, Gerard Pareras, Albert Rimola   +3 more
wiley   +1 more source

The Physics of Protoplanetesimal Dust Agglomerates. III. Compaction in Multiple Collisions

, 2009
To study the evolution of protoplanetary dust aggregates, we performed experiments with up to 2600 collisions between single, highly-porous dust aggregates and a solid plate.
Andrews, Blum, Carsten Güttler, Cuzzi, Desch, Dominik, Epstein, Frithjof Brauer, Güttler, Hayashi, Heißelmann, Hertz, Johansen, Jürgen Blum, Klahr, Langkowski, Petersen, René Weidling, Reyes-Ruiz, Turner, Weidenschilling, Weidenschilling   +21 more
core   +1 more source