Results 61 to 70 of about 1,575 (187)

Models of Giant Planet formation with migration and disc evolution

, 2004
We present a new model of giant planet formation that extends the core-accretion model of Pollack etal (1996) to include migration, disc evolution and gap formation.
Alexander, Alibert, Bate, Beckwith, Bell, Bodenheimer, Boss, C. Mordasini, C. Winisdoerffer, Calvet, Chevalier, Field, Greenzweig, Haisch, Henderson, Hills, Ida, Ikoma, Korykansky, Lin, Lin, Lin, Lissauer, Lynden-Bell, Mac Low, Mayor, Menou, Nelson, Papaloizou, Perri, Podolak, Pollack, Revelle, Roulston, Saumon, Sekanina, Shakura, Sharp, Sibulkin, Svetsov, Takata, Tanaka, Tanaka, Tanaka, Thommes, Veras, W. Benz, Ward, Wetherill, Y. Alibert, Zahnle, Zahnle   +51 more
core   +1 more source

Small but mighty: Impact hazards from iron Near‐Earth Objects

Meteoritics &Planetary Science, Volume 61, Issue 2, Page 224-240, February 2026.
Abstract Small asteroids can impact Earth unexpectedly, as demonstrated by the Chelyabinsk event in 2013. The warning times are likely to be short, and the first tools for fast hazard predictions have been developed in the last years for encounters with rocky or cometary objects, which quickly fragment in the atmosphere and cause airbursts. However, in
Robert Luther, Natalia Artemieva, Andrea Schmalen, Kai Wünnemann, Detlef Koschny, Richard Moissl   +5 more
wiley   +1 more source

The Utility of Infrasound in Global Monitoring of Extraterrestrial Impacts: A Case Study of the 2008 July 23 Tajikistan Bolide

The Astronomical Journal
Among the various observational techniques used for the detection of large bolides on a global scale is a low-frequency sound known as infrasound. Infrasound, which is also one of the four sensing modalities used by the International Monitoring System ...
Elizabeth A. Silber
doaj   +1 more source

Carbon source from limestone target by impact reaction at the K/T Boundary [PDF]

, 1999
Carbon found at the K/T geological boundaries can be explained by impact reaction between the K/T bolides and limestone target rocks, which are proved by other natural and artificial ...
Gucsik, Arnold, Kedves, Miklós, Kobayashi, H., Miura, Y.   +3 more
core  

Multiparameter Constraints on Empirical Infrasound Period-Yield Relations for Bolides and Implications for Planetary Defense

The Astronomical Journal
How effective are methods for estimating bolide energies from infrasound signal period-yield relationships? A single global period–energy relation can obscure significant variability introduced by parameters such as the atmospheric Doppler wind profile ...
Elizabeth A. Silber, Josep M. Trigo-Rodríguez, Iyare Oseghae, Eloy Peña-Asensio, Mark Boslough, Rodney Whitaker, Christoph Pilger, Philip Lubin, Vedant Sawal, Claus Hetzer, Randy Longenbaugh, Peter Jenniskens, Brin Bailey, Esther Mas Sanz, Patrick Hupe, Alexander N. Cohen, Thom R. Edwards, Sasha Egan, Reynold E. Silber, Summer C. Czarnowski, Miro Ronac Giannone   +20 more
doaj   +1 more source

Apache Point Rapid Response Characterization of Primitive Imminent Impactor 2024 RW1

The Astronomical Journal
Imminent impactors may be detected only a few hours before their impact with Earth, providing a brief opportunity to characterize them before impact. We describe the characterization of imminent impactor 2024 RW _1 , which was discovered by the Catalina ...
Carl Ingebretsen, Bryce T. Bolin, Robert Jedicke, Peter Vereš, Christine H. Chen, Carey M. Lisse, Russet McMillan, Torrie Sutherland, Amanda J. Townsend   +8 more
doaj   +1 more source

Meteoroid capture cell construction [PDF]

, 1976
A thin membrane covering the open side of a meteoroid capture cell causes an impacting meteoroid to disintegrate as it penetrates the membrane.
High, R. W., Zook, H. A.
core   +1 more source

Impact craters on Venus: An overview from Magellan observations [PDF]

Magellan has revealed an ensemble of impact craters on Venus that is unique in many important ways. We have compiled a database describing 842 craters on 89 percent of the planet's surface mapped through orbit 2578 (the craters range in diameter from 1.5
Boyce, J. M., Chadwick, D. J., Dawson, D. D., Gaddis, L. R., Kirk, R. L., Moore, H. J., Russell, J., Schaber, G. G., Soderblom, L. A., Strom, R. G.   +9 more
core   +1 more source

The optical, seismic, and infrasound signature of the March 5 2022, bolide over Central Italy. [PDF]

Sci Rep, 2023
Olivieri M, Piccinini D, Saccorotti G, Barghini D, Gardiol D, Pino NA, Ripepe M, Betti G, Lacanna G, Arcidiaco L.   +9 more
europepmc   +1 more source

BLADE: An Automated Framework for Classifying Light Curves from the Center for Near-Earth Object Studies Fireball Database

The Astronomical Journal
Fireballs (bolides) are high-energy luminous phenomena produced when meteoroids and small asteroids enter Earth’s atmosphere at hypersonic speeds, often resulting in fragmentation or complete disintegration accompanied by significant energy release.
Elizabeth A. Silber, Vedant Sawal
doaj   +1 more source