Results 61 to 70 of about 2,627,055 (211)

The great dichotomy of the Solar System: small terrestrial embryos and massive giant planet cores

, 2015
The basic structure of the solar system is set by the presence of low-mass terrestrial planets in its inner part and giant planets in its outer part. This is the result of the formation of a system of multiple embryos with approximately the mass of Mars ...
Bitsch, B., Jacobson, S., Lambrechts, M., Morbidelli, A.   +3 more
core   +1 more source

Observations of planetary nebulae in the Galactic Bulge [PDF]

arXiv, 1999
High quality spectrophotometric observations of 30 Planetary Nebulae in the Galactic Bulge have been made. Accurate reddenings, plasma parameters, and abundances of He,O,N,S,Ar,Cl are derived. We find the abundances of O,S,Ar in the Planetary Nebulae in the Galactic Bulge to be comparable with the abundances of the Planetary Nebulae in the Disk, high
arxiv  

Impact crater lake evolution and concomitant hydrothermal mineralization recorded by the Wörnitzostheim drill core at the Ries impact structure, Germany

Meteoritics &Planetary Science, EarlyView.
Abstract Impact‐generated hydrothermal systems and postimpact crater lake systems are well‐documented geological phenomena; however, evidence of hydrothermal venting into impact crater lake systems has rarely been reported. We investigated the well‐preserved contact between hydrothermally altered impact melt‐bearing breccia (outer/surficial suevite ...
Matthew J. O. Svensson, Gordon R. Osinski, Fred J. Longstaffe, Timothy A. Goudge, Haley M. Sapers   +4 more
wiley   +1 more source

Kepler-16: A Transiting Circumbinary Planet [PDF]

, 2011
We report the detection of a planet whose orbit surrounds a pair of low-mass stars. Data from the Kepler spacecraft reveal transits of the planet across both stars, in addition to the mutual eclipses of the stars, giving precise constraints on the ...
Batalha, Natalie, Berlind, Perry, Borucki, William J., Boss, Alan, Brown, Warren R., Buchhave, Lars A., Buzasi, Derek, Caldwell, Douglas A., Calkins, Michael L., Carter, Joshua A., Cochran, William D., Doyle, Laurance R., Dunham, Edward W., Esquerdo, Gilbert A., Fabrycky, Daniel C., Fanelli, Michael N., Fischer, Debra, Ford, Eric B., Fortney, Jonathan J., Furesz, Gabor, Geary, John C., Haas, Michael R., Hall, Jennifer R., Holman, Matthew J., Howell, Steve B., Jenkins, Jon M., Koch, David, Latham, David, Lissauer, Jack J., Marcy, Geoffrey W., McCauliff, Sean, Middour, Christopher K., Orosz, Jerome A., Prsa, Andrej, Quinn, Samuel N., Quintana, Elisa V., Ragozzine, Darin, Rucker, Michael, Sasselov, Dimitar, Short, Donald R., Shporer, Avi, Slawson, Robert W., Stefanik, Robert P., Steffen, Jason H., Still, Martin, Tang, Sumin, Torres, Guillermo, Welsh, William F., Winn, Joshua N.   +48 more
core   +2 more sources

Exploring the origins of magnetization within the Chicxulub crater upper peak ring

Meteoritics &Planetary Science, EarlyView.
Abstract Large terrestrial impacts may produce vast subsurface hydrothermal systems, capable of generating conditions favorable to the origin of life. Modeling suggests that these systems may persist for >1 million years for basin‐sized craters; however, direct experimental constraints on hydrothermal system duration are needed.
Christina M. Verhagen, Sonia M. Tikoo, Martin Schmieder, Jérôme Gattacceca, François Demory, Juliane Gross, David A. Kring, Paul V. Burger, Sean P. S. Gulick, Joanna V. Morgan, Mario Rebolledo‐Vieyra, Jaime Urrutia‐Fucugauchi, Annemarie E. Pickersgill, Cornelia Rasmussen   +13 more
wiley   +1 more source

Microfaults: Abundant shear deformation and frictional melting in chondrites

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of ordinary chondrite (OC) meteorites record some amount of textural evidence for impact‐induced deformation. Melt veins in some shocked samples have been compared to terrestrial impact‐related pseudotachylites, which form by frictional melting of host rock.
Craig R. Walton, Mahesh Anand, Maria Schönbächler   +2 more
wiley   +1 more source

The Titius-Bode law of planetary distances: new approach [PDF]

arXiv, 2006
The new approach of the regular spacing of planetary orbits and planet mass distribution in the Solar system is considered. The relative planetary distances will be represented as the inverse composite probabilities of two discrete distributions with one fitted parameter.
arxiv  

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

Meteoritics &Planetary Science, EarlyView.
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

Space station needs, attributes and architectural options study. Volume 1: Executive summary [PDF]

Planetary explorations, Earth observations, space physics, astronomy-astrophysics, solar physics, life/biological/medical sciences, materials processing in space, communications, and technology development are addressed.

core   +1 more source

Forming Different Planetary Systems

, 2012
With the increasing number of detected exoplanet samples, the statistical properties of planetary systems have become much clearer. In this review, we summarize the major statistics that have been revealed mainly by radial velocity and transiting ...
Armitage, Batalha, Batygin, Binney, Borucki, Burkert, Butler, Butler, Chatterjee, Cieza, Cuzzi, Dawson, Duquennoy, Eggenberger, Endl, Fabrycky, Fabrycky, Fischer, Ford, Ford, Fortney, Fregeau, Gaudi, Gilliland, Gonzalez, Gould, Guedes, Haghighipour, Haghighipour, Haisch, Hatzes, Heppenheimer, Hernández, Holman, Howard, Hui Zhang, Hui-Gen Liu, Ida, Ida, Ida, Ida, Ikoma, Jang-Condell, Ji-Lin Zhou, Ji-Wei Xie, Johnson, Johnson, Jurić, Kaib, Kennedy, Kley, Kley, Kokubo, Kratter, Larwood, Laughlin, Lee, Lee, Levison, Lithwick, Lithwick, Liu, Marcy, Marti, Marzari, Marzari, Matsumura, Matsuyama, Mayer, Mayor, Mayor, Meschiari, Mochejska, Murray, Nagasawa, Nagasawa, Nagasawa, Naoz, Ormel, Pascucci, Perets, Perets, Pfahl, Pätzold, Qian, Queloz, Quinn, Quintana, Quintana, Rafikov, Rafikov, Raghavan, Raghavan, Rosvick, Saleh, Sato, Schlaufman, Socrates, Sozzetti, Spurzem, Stewart, Takeda, Tanaka, Terquem, Tremaine, Wang, Wang, Weidenschilling, Weldrake, Weldrake, Winn, Wittenmyer, Wittenmyer, Wittenmyer, Wright, Wright, Wright, Wu, Wu, Wu, Xie, Xie, Xie, Xie, Yasui, Yi-Sui Sun, Youdin, Zhang, Zhang, Zhao, Zhou, Zhou, Zhou, Zucker, Zucker   +134 more
core   +1 more source