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Re[2]: "Volshebnye" principy astronomii
14.08.2007 12:31 | Dmitrii Docenko
Ah, spasibo za komplimenty. Ne mogu ne dat' resheniya dvuh vashih somnenii.
> vodorod - eto samyi rasprostranennyi element vo vselennoi, a ne samyi letuchii i samyi nablyudaemyi element.
Da, samyi rasprostranennyi, poskol'ku osnovnuyu chast' barionnoi massy Metagalaktiki sostavlyaet mezhgalakticheskii gaz. V nem vodoroda obychno bol'she 75% (eto izvestno iz rentgenovkih spektrov). Zvezdy sostavlyayut lish' nebol'shuyu chast' massy (odin iz poslednih obzorov v stat'e Fukugita, Peebles, 2004, The Cosmic Energy Inventory, http://arxiv.org/abs/astro-ph/0406095, sm. ih tablicu 1)
> problemu nedostatka neitrino ot Solnca poka reshit' ne udalos', hotya bylo mnogo popytok
Udalos' reshit' paru let nazad, smotrite novye obzory. Reshila problemu observatoriya SNO (Sudbury Neutrino Observatory). Problema sostoyala v neuchete neitrinnyh oscillyacii -- oni ne vhodyat v Standartnuyu model'.
> I ya ponyal, chto dlya dokazatel'stva nevozmozhnosti uderzhaniya krasnym gigantom vodoroda neobhodimo znat' temperaturu korony zvezdy.
Vozmozhno ... Delo v tom, chto v kakoi-to moment iz korony nachinaet vynosit'sya naruzhu vse, chto tuda popadaet, kak iz-za zvezdnogo vetra, tak i iz-za davleniya izlucheniya v liniyah metallov. Poetomu v korone dal'neishei separacii po masse, dumayu, ne proishodit. No eto nado smotret' po knizhkam, a u menya seichas na eto net vremeni.
Uspehov!
Dima
- "Volshebnye" principy astronomii (A. N. Churaev, 7.08.2007 11:40, 2.2 KBait, otvetov: 36)
- Re: "Volshebnye" principy astronomii (Dmitrii Docenko, 7.08.2007 13:29, 932 Bait, otvetov: 4)
- Re[2]: "Volshebnye" principy astronomii (A. N. Churaev, 7.08.2007 21:46, 1.9 KBait, otvetov: 3)
- Re[3]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 8.08.2007 0:52, 743 Bait, otvetov: 2)
- Re[4]: "Volshebnye" principy astronomii (A. N. Churaev, 8.08.2007 10:34, 671 Bait, otvetov: 1)
- Re[5]: "Volshebnye" principy astronomii (Dmitrii Docenko, 8.08.2007 12:25, 1.9 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 8.08.2007 22:14, 901 Bait, otvetov: 1)
- Re[2]: "Volshebnye" principy astronomii (Dmitrii Docenko, 9.08.2007 13:52, 651 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 8.08.2007 22:31, 900 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 8.08.2007 22:31, 900 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 8.08.2007 23:05, 530 Bait, otvetov: 5)
- Re[2]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 8.08.2007 23:27, 1.2 KBait, otvetov: 4)
- Re[3]: "Volshebnye" principy astronomii (A. N. Churaev, 9.08.2007 20:06, 1.2 KBait, otvetov: 2)
- Re[4]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 9.08.2007 20:47, 1.3 KBait)
- Re[n]: "Volshebnye" principy astronomii (Dmitrii Docenko, 10.08.2007 14:20, 2.1 KBait)
- Re[3]: "Volshebnye" principy astronomii (Karim Haidarov, 20.09.2008 8:37, 3.4 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 9.08.2007 23:10, 1.2 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 9.08.2007 23:11, 1.2 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 9.08.2007 23:14, 1.2 KBait, otvetov: 1)
- Re[2]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 9.08.2007 23:30, 2.3 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 9.08.2007 23:18, 67 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 10.08.2007 0:34, 1.1 KBait, otvetov: 1)
- Re[2]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 10.08.2007 0:56, 966 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 10.08.2007 0:50, 671 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 10.08.2007 1:28, 1.2 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 10.08.2007 9:29, 873 Bait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 10.08.2007 21:33, 4.3 KBait, otvetov: 1)
- Re[2]: "Volshebnye" principy astronomii (Dmitrii Docenko, 11.08.2007 23:44, 3.9 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 12.08.2007 13:19, 1.1 KBait, otvetov: 1)
- Re[2]: "Volshebnye" principy astronomii (Dmitrii Docenko, 12.08.2007 16:58, 1.1 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 12.08.2007 16:51, 1.2 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 13.08.2007 21:43, 1.1 KBait, otvetov: 1)
- >> Re[2]: "Volshebnye" principy astronomii (Dmitrii Docenko, 14.08.2007 12:31, 1.4 KBait)
- Re: "Volshebnye" principy astronomii (A. N. Churaev, 14.08.2007 22:36, 1.0 KBait, otvetov: 3)
- Re[2]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 15.08.2007 0:24, 1.1 KBait, otvetov: 2)
- Re[3]: "Volshebnye" principy astronomii (M. Yu. Yakimov, 15.08.2007 22:22, 116 Bait)
- Re[3]: "Volshebnye" principy astronomii (V. F. Pashkov, 19.09.2008 13:01, 5.2 KBait)