منابع مشابه
Hematite Formation in Gale Crater
Introduction: Secondary minerals identified by Mars Science Laboratory (MSL), together with their sedimentological and stratigraphic context, provide an unprecendented opportunity to constrain the nature of martian fluids and habitability. One of the main targets for the MSL mission within the new Extended Mission is the Hematite Ridge on the north, lower slopes of Mt. Sharp (Aeolis Mons). This...
متن کاملCrater formation and sputtering by cluster impacts
A multiscale computational model coupling atomistic molecular dynamics simulations with continuum elasticity was used for studying craters formed on Si surfaces by Ar cluster impacts, with energies of 20–50 eV/atom. The results were confirmed by atomic force microscopy/transmission electron microscopy. They show that on a Si (1 0 0), craters are nearly triangular in cross-section, with the face...
متن کاملMartian subsurface properties and crater formation processes inferred from fresh impact crater geometries
available online at http://meteoritics.org 1509 © The Meteoritical Society, 2006. Printed in USA. Martian subsurface properties and crater formation processes inferred from fresh impact crater geometries Sarah T. STEWART* and Gregory J. VALIANT Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, Massachusetts 02138, USA *Corresponding author. E-mail: sst...
متن کاملErosional modification and gully formation at Meteor Crater, Arizona: Insights into crater degradation processes on Mars
0019-1035/$ see front matter 2010 Elsevier Inc. A doi:10.1016/j.icarus.2010.03.032 * Corresponding author at: Room No. 122, Main Bu Research Institute, Council of Scientific and Industria Uppal Road, Hyderabad 500 606, Andhra Pradesh, Ind E-mail addresses: [email protected], senthil@ Hydrogeological modification of Meteor Crater produced a spectacular set of gullies throughout the interior ...
متن کاملDo Moderate-luminosity Agn Suppress Star Formation?
The growth of supermassive black holes and their host galaxies are thought to be linked, but the precise nature of this symbiotic relationship is still poorly understood. Both observations and simulations of galaxy formation suggest that the energy input from active galactic nuclei (AGN), as the central supermassive black hole accretes material and grows, heats the interstellar material and sup...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2021
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.371.6527.359-f