Peter Kretschmar

Astronomer

 

Main Research Fields

Almost all of my research activities are related to accreting X-ray binaries, mostly accreting X-ray pulsars. Using data from various high-energy missions (INTEGRAL, RXTE, XMM-Newton, Suzaku, Swift and others) my colleagues and I study different aspects of these systems: mechanisms of accretion, period evolution, lightcurves, pulse profiles and spectra. One of my specialties is the study of cyclotron resonant scattering features. Other topics of great interest to me include stellar winds and accretion in HMXB and Be X-ray binary outbursts. See also the Be X-ray Binary Monitor or the related Black Hole Monitor project. In recent years, I have also become interested in X-ray bursts and their feedback on the accretion disk.


Keywords

  • Accreting X-ray pulsars
  • Cyclotron line studies, physics of the accretion column
  • Accretion column geometry and pulse profiles
  • Accretion mechanisms
  • Stellar winds in HMXB systems
  • X-ray bursts and feedback to accretion

Ongoing collaborations

ISSI Team Meetings

2003 + 2004 Multiwavelength investigation of X-/gamma-ray sources
2007 + 2008 Formation of Cyclotron Lines in Neutron Star Accretion Columns
2011 + 2012 Physics of the Accretion Column of X-ray pulsars
2013 + 2014 Unified View of Stellar Winds in Massive X-ray Binaries
2015 + 2016 Coronae in the X-ray flashlight
2016 + 2017 A Comprehensive View of Stellar Winds in Massive X-ray Binaries

 

Publications

Publications in ADS

Project/mission at ESA

XMM-Newton, INTEGRAL and Hitomi (ASTRO-H)