| WHIM Detections at z > 0 |
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| • | Detecting z >
0 WHIM filaments is harder because
of |
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| random
orientation: lines of sight
to background |
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| sources
cross only a portion of the filament. |
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| • | Until very
recently, only 3 tentative
detections have |
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| been claimed,
along 2 different lines of sight (Fang et |
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| al., 2002,
Mathur et al., 2002). |
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| • | Exceptionally
high quality X-ray spectra of |
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| background AGN
are needed, implying exposures of Ms |
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| on the brightest
blazars in their normal state. |
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| Alternatively… |
| MSSL, 24-25
October 2002 |