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A model for the x-ray binary 4u1820-30
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miyaji, Shigeki |
| Copyright Year | 1986 |
| Description | Analysis of X-ray bursts from 4U1820-30 implies that the mass and radius of the neutron star are 1.4 solar mass and 8 km, respectively, and that the accreted material is hydrogen rich. On the other hand, the recently discovered orbital period of 685 seconds suggests that the companion is a degenerate star consisting mostly of helium. It is shown that apparent conflict can be resolved if the mass and radius of the companion are 0.08 solar mass and 2 x 10 to the 9th cm, respectively, with a mean hydrogen concentration by weight of less than X greater than = 0.1. The possible origin of such a binary system is discussed. |
| File Size | 451553 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880015178 |
| Archival Resource Key | ark:/13960/t3kx0900x |
| Language | English |
| Publisher Date | 1986-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Neutron Stars Electron Scattering X Rays Power Spectra Binary Stars Mathematical Models Stellar Luminosity X Ray Sources Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
