Ultraviolet Background Radiation (Preprint)
Abstract
The topic is the diffuse cosmic ultraviolet background radiation, which is one among a number of diffuse celestial backgrounds that occur at various frequencies. For an excellent earlier review, see Paresce & Jakobsen (89). Figure 1 provides a key for the introductory discussion of the context within which the ultraviolet background occurs. The units of Figure 1 are essentially the same as those used in a similar diagram by Longair (63). Diffuse background radiation units that are used by most observers of the ultraviolet background are photons cm (exp -2) s (exp -1) sr (exp -1) A (exp -1); such units will be referred to simply as "units" throughout this article. There are those that express surface brightness as vI(sub v), where the units of I (sub v) are ergs cm (exp -2) s (exp -1) sr (exp -1) Hz (exp -1) (e.g. 94). When multiplied by a (constant) factor of 5 x 10 (exp 7), these are "units."
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1991
- Accession Number
- ADA575055
Entities
People
- Richard C. Henry
Organizations
- Johns Hopkins University