Abstract
view Abstract Citations (80) References (36) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS LY alpha Emission from Cooling Flows and Measures of the Dust Content of Rich Clusters of Galaxies Hu, Esther M. Abstract We tabulate Ly α and UV continuum fluxes from measurements across the emission-line regions of 10 "cooling flow" clusters of galaxies. Comparison of Ly α emission fluxes obtained with the IUE satellite with optical Balmer emission fluxes is used to demonstrate that the lines of sight to the centers of these clusters show an average excess reddening E_B-V_ ~ 0.19 above foreground extinction. While some fraction of this may derive from localized extinction in the central (cooling flow) region of the cluster, a substantial portion of this effect should arise from an extended cluster component. We consider the case where this extinction originates in the hot intracluster gas of the cluster halo. Estimates for the corresponding 100 micron infrared emission, assuming grain properties similar to those of interstellar grains, place the expected emission at the ~1/2 Jy level for nearby clusters. Measurements from IRAS pointed mode observations of clusters are consistent with the expected values. These results are used to show that ISO and SIRTF may detect clusters to cosmological distances. Publication: The Astrophysical Journal Pub Date: June 1992 DOI: 10.1086/171374 Bibcode: 1992ApJ...391..608H Keywords: Cooling Flows (Astrophysics); Cosmic Dust; Galactic Clusters; Intergalactic Media; Lyman Alpha Radiation; Balmer Series; Infrared Radiation; Interstellar Extinction; Iue; Ultraviolet Astronomy; Astrophysics; GALAXIES: CLUSTERING; GALAXIES: COOLING FLOWS; GALAXIES: INTERGALACTIC MEDIUM; INFRARED: GALAXIES; ISM: DUST; EXTINCTION; ULTRAVIOLET: GALAXIES full text sources ADS | data products SIMBAD (10) NED (10) MAST (1) INES (1)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
