A new take on simulating planet formation
Our Solar System formed about 4.5 billion years ago, so it is a little late to watch Earth, Mars, and their fellow planets coalescing out of the cloud of gas and dust surrounding the young sun.
Nonetheless, David Minton, a Purdue planetary scientist, is taking a look at the process — repeatedly — using Purdue’s Hansen community cluster supercomputer. His simulations may help modify the standard view of how the planets formed, as well as the outlook on planet formation in other solar systems.
The standard view is that the planets formed roughly in the position where we find them today. Earth formed out of material that came from the vicinity of Earth’s orbit, Mars likewise, Jupiter, Saturn, and so on.
“What we’re proposing is a little different,” Minton said. “There was a substantial amount of migration of these bodies when they were growing early in the Solar System’s history.”
The hypothesis from Minton, Hal Levison of the Southwest Research Institute in Boulder, Colorado, and their colleagues may help explain an enduring mystery in the standard view of the planets’ formation. Why is Mars, with substantially larger siblings Jupiter and Earth on either side of it, such a relative runt?
“Mars is about a tenth the mass of the Earth,” Minton said. “Most models of planet formation suggest that Mars ought to be closer to the mass of the Earth. We think we’re getting everything else about right and yet this problem has persisted.”
Levison and Minton believe the answer might be that the planets didn’t form in place, not fully anyway. Rather, they migrated away from the sun after reaching an embryonic stage, collecting additional mass as they traveled like a snowball rolling down a hill. This migration was driven by gravitational interactions with trillions of other small objects, called “planetesimals,” condensed from the solar gas and dust cloud.
Jupiter, Saturn, Uranus, and Neptune rolled along until they settled near their current positions. In their wake, Mars, last among the early forming planets, also came to a halt. It was stuck with no opportunity to add to its mass in further travels and out of position to get in on a later conglomeration process, closer to the sun, which yielded Earth and Venus.
Meanwhile, many planetesimals were coaxed into a position where they seeded the Solar System’s asteroid belt.
Among other things, Minton’s modeling consistently indicates that a migration process of this sort can produce the four giant planets and puny Mars.
Minton employs gravitational N-body and Monte Carlo simulations and uses planetary science community software, such as Mercury and Swift, along with his own codes. The number of objects he builds into his models (tens of millions) and the time scales (a billion years or more, sometimes in time steps of days) make his simulations computationally demanding.
A simulation he did previously looking at 140,000 asteroids over a billion years took nearly 10 months to run. His plans include repeating that study because, with the Hansen community cluster, he now has the computing power necessary not only to get results faster, but also to add in the gravitational impact of the larger asteroids. Gravity’s influence from those bodies individually is limited, but it may have a significant effect cumulatively.
A version of this article first appeared on the Purdue RCAC website.
Digital Stream
Comments
its realy nice blog
www.usergateschool.com Possibly the most exciting sneak peek yet, purely for the comments it has been generating, and more importantly for the questions it asks about the nature of ‘home’. We each have our own history, www.txnheducation.com/ prejudice, preference, and our responses to someone else’s home reveal our preconceptions. Should home be a mausoleum of memories, www.stillnotasleep.com gathered over time, reassuringly present and on exhibit to reassert our identity? Can a home which does not use every inch of space to constantly remind of ‘who we are’ challenge us to shape the future afresh every day? www.rocaleglobal.com Can this website overstep the boundary of offering beautiful decorating ideas? www.iwishthisappwould.com This sneak peek is a welcome challenge to rethink the preconception that ‘home’ must be a mirror image reflection of oneself. Home is also a process, in flux, like a personality. www.buckleupwa.org
seo
http://artswebdirectory.com
http://autosmobiledirectory.com
http://bookswebdirectory.com
http://businesswebsdirectory.com
http://communicationswebdirectory.com
http://computerswebdirectory.com
If they see it as a tool at all, they see it as the tool of others - the powerfull, the wealthy, the well-connected.Worse yet, however, many no longer see it as a tool at all, but rather as an entity unto itself, controlling them but uncontrollable.
snapperzfunlafayette
http://buckleupwa.info/
http://seattlephp.orgThe majority of the bingo amusements that have been played online automaten have the quality of Auto Daub combined into them which prepares the programmed strikes until the numbers are gotten out by the host.http://v-chernomorec.info With this specific headline, the players can effectively play and administer complex bingo cards and you can in addition talk with different players.http://pflueger28ezloan.com One different headline that has been a part of the Auto Daub headline is reputed to be Cauto sort, http://eyeofberlin.comthis is a capacity which can be accommodating in organizing the cards that will make it of service for the player to win the amusement and moreover expanding the possibilities of mechanically winning the diversion.
http://snapperzfunlafayette.com
snapperzfunlafayette
http://buckleupwa.info/
http://seattlephp.orgThe majority of the bingo amusements that have been played online automaten have the quality of Auto Daub combined into them which prepares the programmed strikes until the numbers are gotten out by the host.http://v-chernomorec.info With this specific headline, the players can effectively play and administer complex bingo cards and you can in addition talk with different players.http://pflueger28ezloan.com One different headline that has been a part of the Auto Daub headline is reputed to be Cauto sort, http://eyeofberlin.comthis is a capacity which can be accommodating in organizing the cards that will make it of service for the player to win the amusement and moreover expanding the possibilities of mechanically winning the diversion.
http://snapperzfunlafayette.com
topics
startaid.co.in | slashdotbookmarks.in | mylinkvault.co.in |
mister-wongbookmarks.in | jumptags.co.in | buddymarks.co.in |
blogcatalog.co.in | dmozbookmarks.in Good blog! I truly love how it is simple on my eyes and the data are well written. I’m wondering how I might be notified when a new post has been made. I have subscribed to your feed which must do the trick! Have a great day!
seo
seopanda-tricks I was so lucky to visit this site I really want to recommend this to everyone cause there no doubt about its content I really love this one thanks for sharing this!I hope that I can see new interesting topics I am looking forward to that Creating an unfunded PhD tier could have dire consequences for the accessibility and diversity of the graduate school, never mind the collegial atmosphere within and between departments.
awsome one
http://www.seocompanylist.com I don't prefer individuals who don't give the legitimate attention to a movement. http://www.delhiwebsitedesigningbusiness.com For me, messaging while driving is like making cherish with the TV on. http://www.delhiwebsitedesigningagency.com You can't do mass messaging and want other individuals to do every last one of the movements for you, http://www.brainyseo.com ike the young lady from "The Great Gatsby"! http://www.seo-rant.com In some cases it takes one individual for a mishap to happen. http://www.myseoanswers.com
This is my first chance to
This is my first chance to chat this website I found some attractive things and I will apply to the development of my blog. Roofing Brisbane There are a lot of blogs and articles out there on this topic, but you have acquired another side of the subject.
deliciousbookmarks.in ||
deliciousbookmarks.in || mixxbookmarks.in || redditbookmarks.in || squidoobookmarks.in || technoratibookmarks.in || yahoobookmarks.in
The standard view is that the planets formed roughly in the position where we find them today. Earth formed out of material that came from the vicinity of Earth’s orbit, Mars likewise, Jupiter, Saturn, and so on.Our Solar System formed about 4.5 billion years ago, so it is a little late to watch Earth, Mars, and their fellow planets coalescing out of the cloud of gas and dust surrounding the young sun.
deliciousbookmarks.in ||
deliciousbookmarks.in || mixxbookmarks.in || redditbookmarks.in || squidoobookmarks.in || technoratibookmarks.in || yahoobookmarks.in
The standard view is that the planets formed roughly in the position where we find them today. Earth formed out of material that came from the vicinity of Earth’s orbit, Mars likewise, Jupiter, Saturn, and so on.Our Solar System formed about 4.5 billion years ago, so it is a little late to watch Earth, Mars, and their fellow planets coalescing out of the cloud of gas and dust surrounding the young sun.
Seo
Happy to see your blog as it is just what I've looking for and excited to read all the posts.I am very much interested on this topic. I want to visit the site for other interesting topics. It really helps when reading your material insisted on the matter you have highlighted. Fine tunning the concept you discussed will surely bring new opportunities in this area of interest and brings will result something positive. I appreciate your efforts of taking notice of above discussed matter.Thank you for sharing the experience along. I’m glad to read it. panda seologix | ecommerce-webdesignindia | panda-goodbacklinks
“Mars is about a tenth the
“Mars is about a tenth the mass of the Earth,” Minton said. “Most models of planet formation suggest that Marshomeimprovementarticledirectory ought to be closer to the mass of the Earth. We think we’re getting everything else about right| insurancearticledirectory and yet this problem has persisted.” Jupiter, Saturn, Uranus, and Neptune rolled along untilinternetarticledirectory they settled near their current positions. In their wake, Mars, last among the early forminginvestingarticledirectory planets, also came to a halt. It was stuck with no opportunity to add to its mass| kidsandteensarticles in further travels and out of position to get in on a later conglomeration process, closer to the sun, whichlegalarticledirectory yielded Earth and Venus.
Seo
I am very happy to discover your post as it will become on top in my collection of favorite blogs to visit. Finally, an issue that I am passionate about. I have looked for information of this caliber for the last several hours. Your site is greatly appreciated.I like all the reviews have been posted by the visitors ofthis site ,some of them are very good suggested regard the article. link-building-techniques | good-link-building | linkbuilding2013
you are posting an amazing
you are posting an amazing submit talk about reputable information their step up my very own information creating total should be to good quality swiftly realize over-all good function. you can visit Media buying in Dubai get cheap Advertising agency in Dubai and buying many other Digital media Dubai services.
Seo
I wanted to thank you for this unique read. I definitely savoured all bits and pieces of it including all the comments and I have added you to my bookmark list to check out new articles you post.Creating an unfunded PhD tier could have dire consequences for the accessibility and diversity of the graduate school, I cannot get the sock down to forty stitches. I have taken to decreasing my stitches instead.linkbuilding4panda | qualitypandabacklinks I have found the gradient tool but the cross does not look the same as your doing. I am happy to find your distinguished way of writing the post. Now you make it easy for me to understand and implement the concept. I really loved reading your blog. It was very well authored and easy to undertand. seofriendlysubmission
nice one
A good blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that qualify a blog to be a one.I have express a few of the articles on your website now, and I really like your style of blogging. how2-seobacklinks | seo-afterpanda I added it to my favorite’s blog site list and will be checking back soon…Please add good information that would help others in such good way.This post is exactly what I am interested. we need some more reliable information. how2-backlinkseo There are so multiple comments here that are really attractive and conducive to me thanks for sharing a link especially for sharing this blog. I was guessing if You Could write a little more on this subject? I'd be very gratified if You Could elaborate a little bit more.
its cool
beatya-bonus logo casinoeuro-bonus 2013 | eurocity-bonus 2013 | swiss casino bonus | internet casinos gamblen
Nice post
Wonderful post. I am searching awesome news and idea. What I have found from your site, it is actually highly content. You have spent long time for this post. It's a very useful and interesting site. Thanks! buy windows 7 professional product key
hello
vip kasino | betsson casino24 | boni casinos You actually make it appear so easy with your performance but I find this affair to be actually something which I think I would never comprehend. It seems too complex and extremely broad for me A reliable blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that characterize a blog to be a best oneThis is excellent post. Its having good description regarding this topic. It is informative and helpful.I have known many information from this. Thanks for shearing Pretty great post !! That's a great thinking for the tips on travel for tourist consciousness person.
hello
vip kasino | betsson casino24 | boni casinos You actually make it appear so easy with your performance but I find this affair to be actually something which I think I would never comprehend. It seems too complex and extremely broad for me A reliable blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that characterize a blog to be a best oneThis is excellent post. Its having good description regarding this topic. It is informative and helpful.I have known many information from this. Thanks for shearing Pretty great post !! That's a great thinking for the tips on travel for tourist consciousness person.
Jupiter, Saturn, Uranus, and
Jupiter, Saturn, Uranus, and Neptune rolled along until they settled near their current positions. In their wake, Mars, last among the early forming planets, also came to a halt.
Skin Care
message
exterior wall cladding I have visited to this site multiple times and everytime I find beneficial jobs for me so I would suggest please come to this site and take the chance from here.
comments for u
There are a lot of blogs and articles out there on this topic, but you have acquired another side of the subject. This is reliable content thank you for sharing it.http://www.germanseocompany.de/
awesome
I was so lucky to visit this site I really want to recommend this to everyone cause theres no doubt about its content I really love this one thanks for sharing this!I hope that I can see new interesting topics Im looking forward to that link exchange | plots in noida
cool
This post is very easy to explain and understand without leaving any details out. Great work! directory submission service
deffrent
insurance directory usa After reading all the comments in here and looking back to the photos I would like to add: I was so taken by the space and features that i didn’t realised about the decor so much. onewaylinkbuilding service If I had this flat I would do so much with it, highpage-rankseo it currently look as it is a work in process and that is what probably is as this photos were taken just as this family moved in. But knowing their clothing line, bama rush very simple and neutral I can see how this flat and decor match theiGrace: highpage rank ‘we obviously won’t focus on homes like this as a regular feature’
deffrent
insurance directory usa After reading all the comments in here and looking back to the photos I would like to add: I was so taken by the space and features that i didn’t realised about the decor so much. onewaylinkbuilding service If I had this flat I would do so much with it, highpage-rankseo it currently look as it is a work in process and that is what probably is as this photos were taken just as this family moved in. But knowing their clothing line, bama rush very simple and neutral I can see how this flat and decor match theiGrace: highpage rank ‘we obviously won’t focus on homes like this as a regular feature’
You should comment on the
You should comment on the competition comparison of the blog. You can highlight it's mind boggling. Your blog exploration/tour will broaden your conversions.
cupcake shops
You may post on the order
You may post on the order security for the blog. You could depict it's remarkable. The blog comments would extend your buyers.
cipro
You can post on the ease of
You can post on the ease of use for the blog. You might author it's sweet. Your blog message shall maximize your leads.
Read More | Read More | Read
Read More | Read More | Read More I have explain so many article of this site in which some of them were very intresting and inspiring.This article has good title with good description.you are one of the coolest blogger I ever saw. Thanks for posting this useful information. This was just what I was on looking for. I'll come back to this blog for sure!
More Information | More
More Information | More Information | More Information I have really enjoyed reading your very well written blog posts. Nicely presented information in this post, I prefer to read this kind of stuff.I have to say that the information here was the most complete that.
great comment
quality backlinks
I will really appreciate the writer's selection for choosing this great article relevant to my affair.Here is deep characterization about the article issue which supported me more.
comments
submit edge india |
thetop1 position |
seo-for-top-positions |
cost-seo-panda |
topseo-websites-design |
web-seo-buy-panda You actually make it appear so easy with your performance but I find this affair to be actually something which I think I would never comprehend. It seems too complex and extremely broad for me. I'm looking forward for your next post, I’ll try to get the hang of it!
You might comment on the
You might comment on the personal credibility of the blog. You should index it's marvelous. Your blog feelings should accelerate your colleagues.
web design mauritius
how to get your ex back
You should write about the references on the blog. You can talk about how it's breathtaking. Your blog theories could widen your marketers.https://www.rebelmouse.com/howtogetexback
topseo-consulting-firm |
topseo-consulting-firm | bestseo-techniques2013 | expresslink-building | diyseocompany2013
An exciting element of blog feedback is the fact that individuals who keep feedback on your website can also keep hyperlinks to other weblogs or websites or their own weblogs to further the conversation. These hyperlinks can be an excellent source to help you find new weblogs to read, like-minded blog writers, and new publish ideas. Additionally, blog writers can keep trackbacks on your website through blog feedback when they link to your websites on their weblogs. Trackbacks are another excellent way to help you engage with other blog writers as well as to drive new traffic to your website from the hyperlinks on those other weblogs.
good comment
We never know what this country will be if there is no veteran or people who have biggest power to protect every people in the country. More Information There are so multiple comments here that are really entertaining and conducive to me thanks for sharing a link especially for sharing this blog. More Information I just want to say that you have done a great work here.Thanks for sharing that.I like the services that amazingly surprised me that this kind of work should be done in the proper way More Information also thanks for the information you shared.
SMSglobalservice Messaging,
SMSglobalservice Messaging, is a powerful and economical tool that will give you the edge over your competition, while saving you valuable time and money!
Short code Kenya
short codes in kenya
nice one
high pr sites
Regularly called as a net home trade, it is a terminus for the majority of people who looks for excitement and wages. It is a sincerely sensible diversion that revels viewers and gamers with such similar pictures that it is unthinkable. One would not be able to visualize the extraordinary product of time folks have used as recreation into this system. The exceptional news is that both learners and skilled players find joy in this amusement.
this site
ezine directory |
finance web listings |
high page rank link You actually make it appear so easy with your performance but I find this affair to be actually something which I think I would never comprehend. It seems too complex and extremely broad for me. I'm looking forward for your next post, I’ll try to get the hang of it!
very good
highpage rankbacklinks After reading all the comments in here and looking back to the photos I would like to add: I was so taken by the space and features that i didn’t realised about the decor so much. high prbacklinks If I had this flat I would do so much with it, high prlink it currently look as it is a work in process and that is what probably is as this photos were taken just as this family moved in. But knowing their clothing line, high prlinkbuildingseo very simple and neutral I can see how this flat and decor match theiGrace: manual-directory-submission ‘we obviously won’t focus on homes like this as a regular feature’ rank-page
very good
highpage rankbacklinks After reading all the comments in here and looking back to the photos I would like to add: I was so taken by the space and features that i didn’t realised about the decor so much. high prbacklinks If I had this flat I would do so much with it, high prlink it currently look as it is a work in process and that is what probably is as this photos were taken just as this family moved in. But knowing their clothing line, high prlinkbuildingseo very simple and neutral I can see how this flat and decor match theiGrace: manual-directory-submission ‘we obviously won’t focus on homes like this as a regular feature’ rank-page
I love reading an article
I love reading an article that will make people think. Also, thank you for allowing for me to comment! - ignaciakoe1
You should write about the
You should write about the model/version on the blog. You can expose it's perfect. Your blog examination should widen your readership.getting more views on youtube
Medigap Insurance Plans
I love to read these kind of informative blogs. You have shared nice information about the planets. Keep it up. Medigap Insurance Plans
Your page is sweet, your
Your page is sweet, your graphics are great, and what's more, you use videos that are relevant to what you're saying. You're definitely one in a million
whose line
they migrated away from the
they migrated away from the MCSA Windows Server 2012 braindumps sun after reaching an embryonic stage, collecting additional mass as they traveled like a MCSA Windows Server 2012 dumps snowball rolling down a hill. This migration was driven by MCSA Windows Server 2012 examsgravitational interactions with trillions of other small objects, called “planetesimals,” condensed from the solar gas and dust cloud. http://www.testinsides.com/Microsoft-MCSA-Windows-Server-2012.html
seo web studio wpdesign
seo web studio
wpdesign services
delhi seo consultancy
Book of ra kostenlos online spielen ohne anmeldung. Book of ra free online play without registration: The Book of Ra free play is not possible in those days but today in many casinos. Once in the casinos, bonuses addition be used, which requires no deposit money into the account of the player. Second, there are casinos which have a range of gamers are playing free of cost, where it then is there any added bonus but frequently and no money can be won.
This brief ladies'
This brief ladies' www.hihandbags.com is with the shining design can show your own charms. hermes bags With high quality, the bag will give you comfortable touch. www.2013handbagsus.com The brief design will make you out of ordinary when you carry it. Made of the calfskin, it can protect your things from dust and water.
Post new comment