Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Other >> Science of Astronomy & Space exploration Previous   Index   Next   Threaded   Pages: 1 iblis admirer of the sky Reged: 07/12/06 Posts: 2264 Loc: Germany diffusion       #1099077 - 08/17/06 10:06 AM Attachment (26 downloads) Edit   Reply   Quote Quick Reply   Until now, a unanswered question was why the abundance of lithium produced in the Big Bang is a factor 2 to 3 times higher than the value measured in the atmospheres of old stars, the cosmologically predicted value is too high to reconcile with the measurements made in the stars astronomers proposed the diffusion of elements into the interior of the star http://www.eso.org/outreach/press-rel/pr-2006/pr-30-06.html an observational campaign to test these model predictions was made, studying a variety of stars (squared in the pic) in different stages of evolution in the metal-poor globular cluster NGC 6397. cannot the tests made on our Sun, here are also diffusion processes, I think.. wer denkt das auch? fragt Iblis -------------------- Grüße von Iblis The Universe is not only queerer than we imagine; it is queerer than we CAN imagine. (Haldane) and here I observe that universe The sky is my heaven !********** ******** Post Extras:       LV_Valdis super member Reged: 12/29/05 Posts: 139 Loc: Latvia Re: diffusion [Re: iblis]       #1100893 - 08/18/06 08:01 AM Edit   Reply   Quote Quick Reply   Well, the Sun is just one star and I think that the measurements are already available for it (imho, it has to be the most studied star by humans in the universe). So, double (n-power) checking the data is probalby more apropriate to apply the results on the whole universe. -------------------- 8" SkyWatcher dob. ZRT-457M The "Tank". A pair of 8x30 binocs from 1952 (insane FOV). Post Extras:       iblis admirer of the sky Reged: 07/12/06 Posts: 2264 Loc: Germany Re: diffusion [Re: LV_Valdis]       #1100932 - 08/18/06 08:47 AM Edit   Reply   Quote Quick Reply   yes, Valdis, I think the same Gruß von Iblis -------------------- Grüße von Iblis The Universe is not only queerer than we imagine; it is queerer than we CAN imagine. (Haldane) and here I observe that universe The sky is my heaven !********** ******** Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 1 registered and 0 anonymous users are browsing this forum. Moderator:  llanitedave  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 236 Jump to *International Year of Astronomy 2009* -----   Global Coordination   Cornerstone Projects   Special Projects   Special Task Groups   Global Activities   National and Regional Activities   IYA 2009 in Africa   IYA 2009 in the USA*Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Beginners Forum   Celestial Events   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Celestron SkyScout and Meade mySky   Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   General Observing   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Other* -----   Science of Astronomy & Space exploration   AstroWebsites   Space Rocks*Speciality Forums* -----   AstroArt   Astronomy Software & Computers   Stellar Media   Astro Outreach, Clubs and Star Parties*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements CN Forums Home

Cloudy Nights Sponsor: Astronomics