EXOSAT light curve of AM Her

AM Her displays a strong variable soft X-ray flux in this EXOSAT observation which is anticorrelated with the hard (higher temperature) X-rays. The eclipse of the soft X-rays for a large fraction of the 3.1 hour binary cycle is due to the occultation of the X-ray emitting pole cap by the white dwarf star itself. The hard X-rays are produced by a shock within the accretion column and are only modulated when the column cuts across our line of sight.

Diagrams courtesy of Julian Osborne, EXOSAT Observatory, taken from Figure 10-4a in Charles and Seward.

X-ray light curves of AM Her

(Enter the object name)
Additions or Comments: Have we left anything out? Is there something you would like to have added to this page (a link to your own group's research page, for example...)?

IMAGES | By Mission | Stars | Cataclysmic Variables | X-ray Binaries | Pulsars | Supernova Remnants & Planetary Nebulae | Galaxies | Active Galactic Nuclei | Clusters and Groups of Galaxies | X-ray/gamma-ray Background & Deep Fields | Solar System Objects | Gamma Ray Bursts

HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Last modified: Thursday, 26-Jun-2003 13:48:44 EDT

There will be a network outage, Wednesday May 2, 2018 from 19:00 EDT - 23:59 EDT. All services, web sites, and systems that require access to the internet will be affected by this work.