SUMMARY OF SEQUENCE NUMBER 900021

SUMMARY OF SEQUENCE NUMBER 900021

Title: ORIGIN OF THE GALACTIC RIDGE X-RAY EMISSION

Observer: EBISAWA

Subject Category: Diffuse Emission and Surveys

Seq: 900021 ObsId: 00949

Long-term Plan bin: no LTS bin

ABSTRACT

Origin of the Galactic Ridge X-ray Emission (GRXE) is unknown yet. The most controversial issue is if GRXE is truly diffuse emission or composed of numerous point sources. The first imaging observation of GRXE above 2 keV with ASCA could not clearly answer to this question, being limited by the ASCA XRT spatial resolution (HPD~3 arcmin). With AXAF, having much superior spatial resolution, we will be unambiguously give the answer, being able to detect point sources with a luminosity of ~4x10^{32} erg s^{-1} at 10 kpc. If GRXE is truly diffuse emission, the interstellar magnetic reconnection is proposed as a mechanism to heat and confine the hot plasma. We may observe diffuse X-rays distribute along locally intensified magnetic fields, as observed in the Solar flares.

TARGET SUMMARY

TARGET NAME RADEC TIME SI GRAT TYPE TC ROLL PRE PHASE MULTI PRI
GALACTIC PLANE
280.990833
-4.079417
42.00000
ACIS-I
NONE
GO
no
no
no
no
no
5

IMAGES

(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)

Roll/Visibility

PARAMETERS

Obscat Parameters