| タイトル | A model for the X-ray binary 4U1820-30 |
| 本文（外部サイト） | http://hdl.handle.net/2060/19880015178 |
| 著者（英） | Miyaji, Shigeki |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1986-01-01 |
| 言語 | eng |
| 内容記述 | 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. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 88N24562
NAS 1.15:101143
NASA-TM-101143 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/146067 |
