Mariner 9 ultraviolet spectrometer experiment: upper limits on the Lyman-- alpha flux from clusters of galaxies
Journal Article
·
· Astrophys. J., v. 182, no. 1, pp. 1-7
Data from the ultraviolet spectrometer on the Mariner 9 Mars orbiter have been used to set upper limits on the redshifted L alpha flux from the Perseus and Pegasus I (NGC 7619) clusters of galaxies. The limit for the Perseus cluster implies that the temperature of the intergalactic gas required for gravitational binding must be greater than 10/sup 5/ deg K, if it exists. A less severe limit is set for the Pegasus I cluster. (auth)
- Research Organization:
- Univ. of Colorado, Boulder
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-005912
- OSTI ID:
- 4401860
- Journal Information:
- Astrophys. J., v. 182, no. 1, pp. 1-7, Journal Name: Astrophys. J., v. 182, no. 1, pp. 1-7; ISSN ASJOA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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