Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phst...65..158f&link_type=abstract
Physica Scripta, vol. T65, p. 158
Astronomy and Astrophysics
Astronomy
3
Atoms, Molecules, Data Acquisition, Interstellar Matter, Ultraviolet Radiation, Telescopes, Supernovae, Satellite-Borne Instruments, Red Shift, Oscillator Strengths, Line Spectra, Hot Stars, High Resolution, Galaxies, Electron Transitions, Astronomy
Scientific paper
Most interstellar species have a large fraction of their electronic transitions at far ultraviolet wavelengths. Observations at these wavelengths reveal spectra rich in absorption lines seen against the continuum of a background source, such as a hot star in our Galaxy, a supernova in a nearby galaxy, or even a bright nucleus in an active galaxy. Most of the observations continue to be made with space-borne instruments, but recent work includes measurements of extragalactic material at large redshifts obtained at high resolution with large ground-based telescopes (e.g., the Keck Telescope). The combination of precise experimental oscillator strengths, large-scale computations, and astronomical spectra with high signal-to-noise ratios are yielding a set of self-consistent-values that span a range in strength in excess of 100 for more and more species. The large range is important for studies involving the different environments probed by the various background sources. This review highlights recent work on the atomic species. Si II, S I, and Fe II, and on the molecules, CO and C2.
Cardelli Jason A.
Federman Steven Robert
No associations
LandOfFree
Atomic and Molecular Data for Interstellar Studies: A Status Report does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Atomic and Molecular Data for Interstellar Studies: A Status Report, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic and Molecular Data for Interstellar Studies: A Status Report will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1129706