Results 21 to 30 of about 1,810,930 (242)

Metallicity, planetary formation and migration [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
Recent observations show a clear correlation between the probability of hosting a planet and the metallicity of the parent star. Since radial velocity surveys are biased, however, towards detecting planets with short orbital periods, the probability-metallicity correlation could merely reflect a dependence of migration rates on metallicity.
Livio, M., Pringle, J. E.
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Summary of the Third International Planetary Dunes Workshop: Remote Sensing and Image Analysis of Planetary Dunes, Flagstaff, Arizona, USA, June 12-15, 2012 [PDF]

, 2013
The Third International Planetary Dunes Workshop took place in Flagstaff, AZ, USA during June 12-15, 2012. This meeting brought together a diverse group of researchers to discuss recent advances in terrestrial and planetary research on aeolian bedforms.
Yizhaq, Hezi, Chojnacki, Matthew, Bishop, Mark Ashley, Bishop, Marc A., Tirsch, Daniela, Neakrase, Lynn D. V., Bourke, Mary C., Newman, Claire E., Rubin, Dave M., Zimbelman, James R., Dinwiddie, Cynthia L., Horgan, Briony H., Neakrase, Lynn D.V., Hayward, Rosalyn K., Michaels, Timothy I., Bishop, Mark A., Zimbleman, James R., Horgan, Briony H. N., Burr, Devon M., Titus, Timothy N., Fenton, Lori K., Fenton, Lori, Kerber, Laura, Le Gall, Alice, Rubin, David M.   +24 more
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Summary of the Second International Planetary Dunes Workshop: Planetary Analogs — Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18–21, 2010 [PDF]

, 2010
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18–21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra ...
Tirsch, D., Lancaster, N., Lori K. Fenton, Hayward, R.K., Titus, T.N., Bishop, Marc A., Tirsch, Daniela, Andrew Valdez, Bourke, M.C., Bristow, Charles S., Bourke, Mary C., Valdez, Andrew, Michaels, T.I., Lancaster, Nicolas, Rosalyn K. Hayward, Briony H. Horgan, Horgan, B.H., Horgan, Briony H., Bishop, M.A., Mary C. Bourke, Timothy N. Titus, Timothy I. Michaels, Hayward, Rosalyn K., Michaels, Timothy I., Charles S. Bristow, Mark A. Bishop, Bristow, Charlie S., Daniela Tirsch, Fenton, L.K., Titus, Timothy N., Nicholas Lancaster, Fenton, Lori   +31 more
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RESONANT REMOVAL OF EXOMOONS DURING PLANETARY MIGRATION [PDF]

The Astrophysical Journal, 2016
ABSTRACT Jupiter and Saturn play host to an impressive array of satellites, making it reasonable to suspect that similar systems of moons might exist around giant extrasolar planets. Furthermore, a significant population of such planets is known to reside at distances of several Astronomical Units (AU), leading to speculation that some ...
Christopher Spalding, Konstantin Batygin, Fred C. Adams   +2 more
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Migrating microbes and planetary protection

Trends in Microbiology, 2009
Since the dawn of the space age, humans have wrestled with concerns about planetary cross-contamination. Spacecraft launched from Earth can transport hitchhiker microbes to new worlds on both robotic and crewed vehicles. As plans proceed for future life detection and human exploration missions, planetary protection considerations are again uppermost on
Department of Microbiology, Cell Science, University of Florida, Kennedy Space Center, FL 32899, USA ( host institution ), Nicholson, Wayne L., Schuerger, Andrew C., Race, Margaret S.   +4 more
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Preventing extinction in an age of species migration and planetary change [PDF]

Conservation Biology, 2023
Abstract International and national conservation policies almost exclusively focus on conserving species in their historic native ranges, thus excluding species that have dispersed on their own accord or have been introduced by people. Given that many of these ‘migrant’ species are threatened in their native ranges, conservation goals ...
Lundgren, Erick J., Wallach, Arian D., Svenning, Jens‐Christian, Schlaepfer, Martin, Andersson, Astrid L. A., Ramp, Daniel   +5 more
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The migration-security nexus. International migration and security before and after 9/11 [PDF]

, 2003
Faist T. The migration-security nexus. International migration and security before and after 9/11. COMCAD Arbeitspapiere - working papers, 9.
Thomas Faist, Faist, Thomas
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Jahrbuch Migration und Gesellschaft / Yearbook Migration and Society 2020/2021 [PDF]

, 2021
Migration is not a state of emergency, but a basic existential experience of humanity. It shapes contemporary societies by challenging established orders, creating transnational spaces beyond national hegemonies, creating new economies, influencing urban

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Dust settling and rapid planetary migration [PDF]

Monthly Notices of the Royal Astronomical Society, 2011
16 pages, 13 figures, 3 tables, accepted for publication in ...
Yasuhiro Hasegawa, Ralph E. Pudritz
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Long extra-tropical planetary wave propagation in the presence of slowly varying mean flow and bottom topography. II: ray propagation and comparison with observations [PDF]

, 2003
Ray theory is used to predict phase and group velocities for long planetary waves under realistic, albeit slowly varying, oceanic conditions. The results are compared with local theory using fields smoothed to the same amount (9° latitude/longitude) as ...
Killworth, Peter D., Marchesiello, Patrick, Blundell, Jeffrey R., Killworth, P.D., Peter D. Killworth, Shchepetkin, Alexander, Mcwilliams, James, C., Jeffrey R. Blundell, Mcwilliams, James,, Blundell, J.R.   +9 more
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