Results 121 to 130 of about 400,542 (301)

Physical properties of dusty protoplanetary disks in Lupus: evidence for viscous evolution? [PDF]

, 2017
The formation of planets strongly depends on the total amount as well as on the spatial distribution of solids in protoplanetary disks. Thanks to the improvements in resolution and sensitivity provided by ALMA, measurements of the surface density of mm ...
M. Tazzari, M. Tazzari, L. Testi, L. Testi, A. Natta, A. Natta, M. Ansdell, J. Carpenter, G. Guidi, G. Guidi, M. Hogerheijde, C. Manara, A. Miotello, N. Marel, E. Dishoeck, Jonathan P. Williams   +15 more
semanticscholar   +1 more source

Metallic messengers from the cosmos: Rare (Al,Cu)‐bearing meteorites from the Project Stardust collection

Meteoritics &Planetary Science, Volume 60, Issue 7, Page 1609-1620, July 2025.
Abstract We report the discovery of (Al,Cu)‐bearing metallic alloys in two micrometeorites found in the Project Stardust collection gathered from urban rooftop environments in Norway. Most of the alloys are the same as those found in the Khatyrka meteorite and other micrometeorites, though one has a composition that has not been reported previously ...
Luca Bindi, Jon Larsen, Jan B. Kihle, Guangming Cheng, Jinping Hu, Nan Yao, Chi Ma, Yunbin Guan, Paul D. Asimow, Paul J. Steinhardt   +9 more
wiley   +1 more source

Photoevaporation of Protoplanetary Disks

Proceedings of the International Astronomical Union, 2020
AbstractPhotoelectric effect of dust grains by UV radiation is an important process for disk heating, but as a disk evolves, the amount of dust grains decreases. Photoeaporation is a disk dispersal process, which is caused by high-energy radiation. We perform a set of photoevaporation simulations solving hydrodynamics with radiative transfer and non ...
Ayano Komaki, Riouhei Nakatani, Naoki Yoshida   +2 more
openaire   +1 more source

An overview of the petrography and petrology of particles from aggregate sample from asteroid Bennu

Meteoritics &Planetary Science, Volume 60, Issue 5, Page 979-996, May 2025.
Abstract The OSIRIS‐REx mission returned a sample of regolith from the carbonaceous asteroid Bennu in September 2023. We present preliminary in situ investigations of the petrology and petrography of selected particles ranging in size from 0.5 to 3 mm.
Harold C. Connolly Jr, Dante S. Lauretta, Timothy J. McCoy, Sara S. Russell, Pierre Haenecour, Anjani Polit, Jessica J. Barnes, Thomas J. Zega, Hisayoshi Yurimoto, Noriyuki Kawasaki, Kevin Righter, Guy Libourel, Marc Portail, Vincent Guigoz, Ashley J. King, Lindsay P. Keller, Kathy Thomas‐Keprta, Loan Le, Valarie Tu, Scott A. Eckley, Catherine M. Corrigan, Timothy Gooding, Timothy Rose, Rob Wardell, Soumya Ray, Victoria E. Hamilton, Nicole G. Lunning, Christopher J. Snead, Francis M. McCubbin, Michelle S. Thompson, Rhian H. Jones, Kenneth Domanik, Dolores Hill, Lucas Smith, Iunn J. Ong, Tobias Salge, Natasha Almeida, Catherine Harrison, Helena Bates, Paul Schofield, Ian A. Franchi, Brian H. May, Claudia Manzoni, Andrew J. Ryan, Ronald‐Louis Ballouz, Robert J. Macke, Jason P. Dworkin, Charles C. Lorentson, Kimberly Tait, Erica R. Jawin, Hannah H. Kaplan, Daniella N. DellaGuistina, Kevin J. Walsh, Michael C. Moreau, Heather L. Enos, C. W. V. Wolner, Heather L. Roper, Shogo Tachibana   +57 more
wiley   +1 more source

Hydration and dehydration of CM chondrites revealed by X‐ray diffraction combined with textural observations and compositional data

Meteoritics &Planetary Science, Volume 60, Issue 5, Page 1194-1215, May 2025.
Abstract The in‐plane rotation method is used to obtain X‐ray random diffraction (XRD) patterns of polished thin sections of 10 CM chondrites. The samples include five intermediately altered CM chondrites with subtypes 2.6–2.3, two heavily altered CM chondrites with subtype 2.0 and three with secondary heating after hydration (Y 980036, Y 980051, and ...
Naoya Imae, Makoto Kimura, Akira Yamaguchi   +2 more
wiley   +1 more source

Observations of edge-on protoplanetary disks with ALMA I. Results from continuum data [PDF]

, 2020
M. Villenave, F. Ménard, W. R. F. Dent, Gaspard Duchêne, Karl Stapelfeldt, M. Benisty, Yann Boehler, G. van der Plas, C. Pinte, Zoie Telkamp, Schuyler Wolff, Christian Flores, Geoffroy Lesur, F. Louvet, A. Riols, C. Dougados, H. A. Williams, D. L. Padgett   +17 more
openalex   +1 more source

Using X‐ray computed microtomography (μCT) to determine subsample‐specific cosmogenic noble gas production rates of E (enstatite) chondrites

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 442-463, March 2025.
Abstract Cosmic ray exposure (CRE) ages provide information about the parent bodies and source regions of meteorite classes. Cosmogenic noble gases are often used to quantify exposure time scales ranging from tens of ka to hundreds of Ma. The production rate of cosmogenic noble gases is primarily controlled by a meteorite's chemical composition ...
M. Mijjum, B. J. Andrews, T. J. McCoy, C. M. Corrigan, M. W. Caffee, M. M. Tremblay   +5 more
wiley   +1 more source

Light Echoes of Time-resolved Flares and Application to Kepler Data

The Open Journal of Astrophysics
Light echoes of stellar flares provide an intriguing option for exploring protoplanetary disks in young stellar systems. Previous work on light echoes of circumstellar disks made use of delta-function flares for modeling.
Austin King, Benjamin C. Bromley
doaj   +1 more source

C I Traces the Disk Atmosphere in the IM Lup Protoplanetary Disk [PDF]

, 2023
Charles J. Law, Felipe Alarcón, L. Ilsedore Cleeves, Karin I. Öberg, Teresa Paneque-Carreño   +4 more
openalex   +1 more source

Disk Imaging Survey of Chemistry with SMA (DISCS): I. Taurus Protoplanetary Disk Data

, 2010
Chemistry plays an important role in the structure and evolution of protoplanetary disks, with implications for the composition of comets and planets. This is the first of a series of papers based on data from DISCS, a Submillimeter Array survey of the ...
Aikawa, Alencar, Andrews, Andrews, Bergin, Bergin, Bergin, Calvet, Calvet, Catherine Espaillat, Chiang, Chunhua Qi, David J. Wilner, Dutrey, Dutrey, Dutrey, Dutrey, Duvert, Edwin A. Bergin, Espaillat, Espaillat, Fogel, Furlan, Glassgold, Glassgold, Guilloteau, Hamidouche, Herczeg, Ho, Hughes, Ilaria Pascucci, Isella, Jeffrey K. J. Fogel, Karin I. Öberg, Kessler-Silacci, Kitamura, Kurucz, Looney, Mannings, Mannings, Mannings, Pascucci, Qi, Qi, Roberts, Salyk, Sean M. Andrews, Simon, Testi, The, Tim A. van Kempen, White, Willacy, Öberg, Öberg   +54 more
core   +1 more source