Echelle Observations of the Low Redshift Lyman Alpha Forest in 3C273

Details Echelle Observations of the Low Redshift Lyman Alpha Forest in 3C273 Echelle Observations of the Low Redshift Lyman Alpha Forest in 3C273

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3477w&link_type=abstract

HST Proposal ID #3477

Computer Science

Hst Proposal Id #3477

Scientific paper

We will observe a Lyman alpha forest absorption line in 3C273 at very high (approx 4 km/s) resolution using the GHRS Echelle-A Grating and the large science aperture. Our objective is to understand the nature of the (formal) super-thermal doppler parameters frequently found in the Lyman alpha forest, and confirm that such doppler parameters actually occur at very low redshifts. In particular, we will search for sub-components and/or departures from a Voigt profile in the line.

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