... Spectrograph (Side One) were used to make observations of Quasar = Q1214+180 to study the relation ship between its galaxy and ... The relationship between the galaxy and low = column density, metal poor quasar absorbers is poorly understood. ...
... His primary research interests are extragalactic observational astronomy, particularly quasars, active galaxies, and the intergalactic medium, and space instrumentation. ...
... Matthias Dietrich, The Ohio State University Research Foundation . Quasars at Redshift z=6 and Early Star Formation History . Abstract . 10802 . ...
... CCD/MA1 8287 (A Search For Transparent Lines of Sight With Intergalactic He-II Obsorption Towards 26 Bright z > 2.9 Quasars) The Space Telescope Imaging Spectrograph (CCD and MA1) was used to make He-II absorption line observations of quasar HS1244+314 ...
... Five Sets of STIS/CCD 8631 (Bright Quasar Close Lensing Search II) The Space Telescope Imaging Spectrograph (CCD) was used to expand the Cycle 8 second generation HST snapshot survey of bright quasars, optimized to find lenses with component image ...
... Quasars at Redshift z=6 and Early Star Formation History . Abstract . 10798 . Leon Koopmans, Kapteyn Astronomical Institute . ... Abstract . GO 10792: Quasars at Redshift z=6 and Early Star Formation History . ...
... Quasars) The Space telescope Imaging Spectrograph (CCD and MA2) was used to investigate the variability in the strength of absorption lines in quasar spectra which is definitive proof that we are observing material that is physically associated with the ...