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

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

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5719w&link_type=abstract

HST Proposal ID #5719

Computer Science

Hst Proposal Id #5719 Quasars &Amp, Agn Quasar Absorption

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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