Do Galaxies Produce Quasar Absorption Lines: Cycle 2 Augmentaion

Details Do Galaxies Produce Quasar Absorption Lines: Cycle 2 Augmentaion Do Galaxies Produce Quasar Absorption Lines: Cycle 2 Augmentaion

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3566b&link_type=abstract

HST Proposal ID #3566

Physics

Hst Proposal Id #3566

Scientific paper

SPECTRA WILL BE OBTAINED WITH THE FOS FOR A NUMBER OF QUASARS THAT HAVE A SMALL ANGULAR SEPARATION ON THE SKY FROM GALAXIES OR GALAXY VOIDS, INCLUDING MARK 205, 3C 232, PKS 2020-370, THE GRAVITATIONALLY LENSED QUASAR, 2237+0305, 4 OBJECTS BEHIND THE BOOTES GALAXY VOID, US 1329 (BEHIND THE BAHCALL-SONEIRA GALAXY VOID), AND 5C 03.44 (BEHIND M 31). THE SPECTRA WILL BE USED TO TEST THE HYPOTHESIS THAT SOME METALLIC QUASAR ABSORPTION SYSTEMS ARE CAUSED BY VERY LARGE GALAXY HALOS OR DISKS. WF/PC IMAGES WILL ALSO BE OBTAINED OF THE LENSING GALAXY, 2237+0305, IN ORDER TO LOCATE ACCURATELY THE QUASAR POSITION AND MEASURE THE SURFACE BRIGHTNESS OF THE INNER REGION OF THE GALAXY. ST OBSERVATIONS ARE REQUIRED BECAUSE, FOR THE SMALL REDSHIFTS AT WHICH GALAXIES WITH LARGE ANGULAR SIZE ARE FOUND, THE RESONANT ATOMIC LINES ARE IN THE ULTRAVIOLET.

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