The eclipsing X-ray pulsar X-7 in M33
arXiv:astro-ph/9810050 · doi:10.1046/j.1365-8711.1999.02158.x
Abstract
Using our extensive ROSAT X-ray observations of M33, we confirm a 3.45 day eclipse period for the Einstein source X-7 (Larson & Schulman, 1997) and discover evidence for a 0.31-s pulse period. The orbital period, pulse period and observed X-ray luminosity are remarkably similar to SMC X-1. We therefore suggest M33 X-7 is a neutron star high mass X-ray binary with a 15-40 Msol O/B companion and a binary separation of 25-33 Rsol if the companion is almost filling its Roche lobe.
accepted for publication in MNRAS
References in corpus (1)
Cited by in corpus (11)
- XMM-Newton survey of the Local Group galaxy M 33
- M 33 X-7: ChASeM33 reveals the first eclipsing black hole X-ray binary
- The Hard X-ray Luminosity of OB Star Populations: Implications for the Contribution of Star Formation to the Cosmic X-ray Background
- The eclipsing massive X-ray binary M33 X-7: New X-ray observations and optical identification
- Chandra Observations of the Nucleus of M33
- The Mass of the Black Hole in the X-ray Binary M33 X-7 and the Evolutionary Status of M33 X-7 and IC 10 X-1
- BeppoSAX spectroscopy of the luminous X-ray sources in M33
- Photometric Analysis of the Optical Counterpart of the Black Hole HMXB M33 X-7
- Deep XMM-Newton survey of M33
- Detection of the second eclipsing high mass X-ray binary in M 33
- Thermal Equilibrium Curves and Turbulent Mixing in Keplerian Accretion Disks