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160906e19890101||| o| f1|||||eng|d |
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|a (TOE)ost5541689
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|a (TOE)5541689
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| 040 |
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|a TOE
|c TOE
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| 049 |
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|a GDWR
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| 072 |
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|a 71
|2 edbsc
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| 086 |
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|a E 1.99: conf-8906225--1
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| 086 |
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|a E 1.99:la-ur-89-3200
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| 086 |
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|a E 1.99: conf-8906225--1
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| 088 |
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|a conf-8906225--1
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| 088 |
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|a la-ur-89-3200
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| 245 |
0 |
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|a Thermonuclear Runaway model
|h [electronic resource]
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| 260 |
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|a Washington, D.C. :
|b United States. Department of Energy ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
|c 1989.
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| 300 |
|
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|a Pages: (13 p) :
|b digital, PDF file.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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| 500 |
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|a Published through SciTech Connect.
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| 500 |
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|a 01/01/1989.
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| 500 |
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|a "la-ur-89-3200"
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| 500 |
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|a " conf-8906225--1"
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| 500 |
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|a "DE90000690"
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| 500 |
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|a Physics of classical novae: IAU colloquium no. 122, Madrid (Spain), 27-30 Jun 1989.
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| 500 |
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|a Starrfield, S.; Sparks, W.M.; Kutter, G.S.; Truran, J.W.; Arizona State Univ., Tempe, AZ; National Science Foundation, Washington,; Illinois State Univ., Normal, IL.
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| 520 |
3 |
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|a The nova outburst requires an energy source that is energetic enough to eject material and is able to recur. The Thermonuclear Runaway (TNR) model, coupled with the binary nature of nova systems satisfies these conditions. The white dwarf/red dwarf binary nature of novae was first recognized as a necessary conditions by Kraft. The small separation characteristic of novae systems allows the cool, red secondary to overflow is Roche lobe. In the absence of strong, funneling magnetic fields, the angular momentum of this material prevents it from falling directly onto the primary, and it first forms a disk around the white dwarf. This material is eventually accreted from the disk onto the white dwarf. As the thickness of this hydrogen-rich layer increases, the degenerate matter at the base reaches a temperature that is high enough to initiate thermonuclear fusion of hydrogen. Thermonuclear energy release increases the temperature which in turn increases the energy generation rate. Because the material is degenerate, the pressure does not increase with temperature, which normally allows a star to adjust itself to a steady nuclear burning rate. Thus the temperature and nuclear energy generation increase and a TNR results. When the temperature reaches the Fermi temperature, degeneracy is lifted and the rapid pressure increase causes material expansion. The hydrogen-rich material either is ejected or consumed by nuclear burning, and the white dwarf returns to its pre-outburst state. The external source of hydrogen fuel from the secondary allows the while process to repeat. 43 refs., 8 figs.
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| 536 |
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|b W-7405-ENG-36.
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| 650 |
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|a Novae.
|2 local.
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| 650 |
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|a Thermonuclear Reactions.
|2 local.
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| 650 |
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|a Angular Momentum.
|2 local.
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| 650 |
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|a Cno Cycle.
|2 local.
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| 650 |
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|a Roche Equipotentials.
|2 local.
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| 650 |
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7 |
|a Star Accretion.
|2 local.
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| 650 |
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7 |
|a White Dwarf Stars.
|2 local.
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| 650 |
|
7 |
|a Dwarf Stars.
|2 local.
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| 650 |
|
7 |
|a Eruptive Variable Stars.
|2 local.
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| 650 |
|
7 |
|a Nuclear Reactions.
|2 local.
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| 650 |
|
7 |
|a Nucleosynthesis.
|2 local.
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| 650 |
|
7 |
|a Star Burning.
|2 local.
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| 650 |
|
7 |
|a Star Evolution.
|2 local.
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| 650 |
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7 |
|a Stars.
|2 local.
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| 650 |
|
7 |
|a Synthesis.
|2 local.
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| 650 |
|
7 |
|a Variable Stars.
|2 local.
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| 650 |
|
7 |
|a Classical And Quantum Mechanics, General Physics.
|2 edbsc.
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| 710 |
2 |
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|a Los Alamos National Laboratory.
|4 res.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
|
| 856 |
4 |
0 |
|u http://www.osti.gov/scitech/biblio/5541689
|z Online Access
|
| 907 |
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|a .b59981313
|b 03-06-23
|c 05-28-10
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| 998 |
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|a web
|b 09-09-16
|c f
|d m
|e p
|f eng
|g
|h 0
|i 3
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| 956 |
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|a Information bridge
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| 999 |
f |
f |
|i dd17cd6f-aad8-56bf-aa97-edc3ebfd6bb5
|s d8bff35b-6bb8-544a-8e29-9152d8c917ee
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| 952 |
f |
f |
|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99: conf-8906225--1
|h Superintendent of Documents classification
|i web
|n 1
|
