Radio pulsar and accretion regimes of rapidly rotating magnetic neutron stars in early-type eccentric binaries
| dc.creator | Campana, S. | |
| dc.creator | Stella, L. | |
| dc.creator | Mereghetti, S. | |
| dc.creator | Colpi, M. | |
| dc.date | 1994-11-16 | |
| dc.date.accessioned | 2026-07-07T02:19:34Z | |
| dc.date.available | 2026-07-07T02:19:34Z | |
| dc.description | Rapidly rotating magnetic neutron stars in eccentric binary systems containing an early type star provide a unique opportunity to investigate the interplay between radio pulsar, stellar wind and accretion phenomena. We summarise the radio pulsar-dominated and the accretion-dominated regimes, discussing how the transition from one regime to another can take place as a result of the varying orbital distance and relative velocity along the orbit, as well as changes of the wind characteristics. We derive the conditions under which the two known B star/radio pulsar binaries (PSR 1259-63 and PSR J0045-7319) can undergo a transition to the accreting regime. A strong increase of the mass loss ouflow from the companion is required, just to cause the onset of accretion onto the magnetospheric boundary. We also show that the X--ray transient A0538-66 is likely to undergo transitions from the accreting neutron star regime, to the regime of accretion onto the magnetosphere. These two regimes might correspond to the high (> 10^{38} erg/s) and the low-luminosity (< 10^{38} erg/s) outbursts observed from this source. A radio pulsar might become detectable in the long quiescent states of A0538-66. A new model of the enigmatic high-energy binary LS I +61 303 involving accretion onto the magnetosphere is also presented. | |
| dc.description | accepted for publication in A&A main journal. 5 pages, latex file, laa style, no figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9411064 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9411064 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/9915 | |
| dc.subject | Astrophysics | |
| dc.title | Radio pulsar and accretion regimes of rapidly rotating magnetic neutron stars in early-type eccentric binaries | |
| dc.type | text |