Thermonuclear runaways in thick hydrogen-rich envelopes of neutron stars

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A Lagrangian, fully implicit, one-dimensional hydrodynamic computer code was used to evolve thermonuclear runaways in the accreted hydrogen rich envelopes of 1.0 Msub solar neutron stars with radii of 10 km and 20 km. Our simulations produce outbursts which last from about 750 seconds to about one week. Peak effective temperatures and luminosities were 2.6 x 10/sup 7/ K and 8 x 10/sup 4/ Lsub solar for the 10 km study and 5.3 x 10/sup 6/ K and 600 Lsub solar for the 20 km study. Hydrodynamic expansion on the 10 km neutron star produced a precursor lasting about 10/sup ... continued below

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Pages: 8

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Starrfield, S.G.; Kenyon, S.; Truran, J.W. & Sparks, W.M. January 1, 1981.

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Description

A Lagrangian, fully implicit, one-dimensional hydrodynamic computer code was used to evolve thermonuclear runaways in the accreted hydrogen rich envelopes of 1.0 Msub solar neutron stars with radii of 10 km and 20 km. Our simulations produce outbursts which last from about 750 seconds to about one week. Peak effective temperatures and luminosities were 2.6 x 10/sup 7/ K and 8 x 10/sup 4/ Lsub solar for the 10 km study and 5.3 x 10/sup 6/ K and 600 Lsub solar for the 20 km study. Hydrodynamic expansion on the 10 km neutron star produced a precursor lasting about 10/sup -4/ seconds.

Physical Description

Pages: 8

Notes

NTIS, PC A02/MF A01.

Source

  • Workshop on gamma ray transients and related astrophysical phenomena, La Jolla, CA, USA, 5 Aug 1981

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  • Other: DE82000582
  • Report No.: LA-UR-81-2684
  • Report No.: CONF-810871-4
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6138681
  • Archival Resource Key: ark:/67531/metadc1110049

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1981

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  • Feb. 22, 2018, 7:45 p.m.

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  • March 26, 2018, 12:55 p.m.

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Starrfield, S.G.; Kenyon, S.; Truran, J.W. & Sparks, W.M. Thermonuclear runaways in thick hydrogen-rich envelopes of neutron stars, article, January 1, 1981; United States. (digital.library.unt.edu/ark:/67531/metadc1110049/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.