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ROSAT Guest Observer Facility

ROSAT X-ray Images of Young Stellar Clusters

Below are several images made from ROSAT observations that have been used to study the X-ray emission from young stars. Some of these are simple count rate images, where the pixel intensity is given by the number of photons detected in this pixel. Some, which are labeled as `true colour' images, consist of three overlaid images showing different photon energies.
Photons with energies < 0.5 keV are shown in red,
photons with energies > 0.5 Kev and < 1.0 keV in green,
and those with energies > 1 keV in blue.
The different colours of the stars correspond to different coronal temperatures.

The young stellar cluster IC348
The Orion nebula cluster
The Rho Ophiuchus star forming region
The Chameleon star forming region
The young stellar cluster IC2391
The Pleiades
The Hyades
The young stellar cluster NGC2516


These images were taken with permission from Dr. Thomas Preibisch, Astronomisches Institut, Würzburg, Germany.
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Curator: Michael Arida (SP Sys); arida@milkyway.gsfc.nasa.gov
HEASARC Guest Observer Facility


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This file was last modified on Friday, 25-Feb-2000 08:38:21 EST

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