Candidates for new soft intermediate polars

Candidates for new soft intermediate polars


Proposal number : 79
Overvation program : CP
Subject category : Compact_Galactic
Proposal type : STANDARD
Principal Investigator : Frank Haberl
PI Institute : MPE

Abstract

A new class of soft intermediate polars (IPs) has been discovered from
the ROSAT all-sky survey with X-ray spectra similar to those of polars.
We propose SAX observations of two new candidates for soft IPs to
confirm their nature. Increasing the sample of soft IPs is important
- there are only 2 well confirmed such sources known today - to find the
physical parameters which rule the production of the soft X-ray
component in soft IPs and to establish their relationship to polars.


List of Approved Targets


Target RA (2000) DEC (2000) Exposure (s) Priority
RX J0720.4-3125 07 20 24.0 -31 25 50.0 50000A



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