Measuring the melting curve of iron at super-Earth core conditions

Author:

Kraus Richard G.1ORCID,Hemley Russell J.2ORCID,Ali Suzanne J.1ORCID,Belof Jonathan L.1ORCID,Benedict Lorin X.1,Bernier Joel1ORCID,Braun Dave1,Cohen R. E.3ORCID,Collins Gilbert W.4ORCID,Coppari Federica1ORCID,Desjarlais Michael P.5ORCID,Fratanduono Dayne1ORCID,Hamel Sebastien1ORCID,Krygier Andy1ORCID,Lazicki Amy1ORCID,Mcnaney James1ORCID,Millot Marius1ORCID,Myint Philip C.1ORCID,Newman Matthew G.6,Rygg James R.4ORCID,Sterbentz Dane M.1ORCID,Stewart Sarah T.7ORCID,Stixrude Lars8ORCID,Swift Damian C.1ORCID,Wehrenberg Chris1ORCID,Eggert Jon H.1ORCID

Affiliation:

1. Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

2. Departments of Physics, Chemistry, and Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA.

3. Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.

4. Department of Mechanical Engineering, Department of Physics and Astronomy, and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, USA.

5. Sandia National Laboratories, Albuquerque, NM 87123, USA.

6. Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USA.

7. Department of Earth and Planetary Sciences, University of California Davis, Davis, CA 95616, USA.

8. Department of Earth, Planetary, and Space Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA.

Abstract

Terapascal iron-melting temperature The pressure and temperature conditions at which iron melts are important for terrestrial planets because they determine the size of the liquid metal core, an important factor for understanding the potential for generating a radiation-shielding magnetic field. Kraus et al . used laser-driven shock to determine the iron-melt curve up to a pressure of 1000 gigapascals (see the Perspective by Zhang and Lin). This value is about three times that of the Earth’s inner core boundary. The authors found that the liquid metal core lasted the longest for Earth-like planets four to six times larger in mass than the Earth. —BG

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Cited by 37 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3