Faint object spectrograph observations of the large-redshift gravitational lens candidate 1208+1011

Details Faint object spectrograph observations of the large-redshift gravitational lens candidate 1208+1011 Faint object spectrograph observations of the large-redshift gravitational lens candidate 1208+1011

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...400l..51b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 400, no. 2, p. L51-L54.

Astronomy and Astrophysics

Astrophysics

12

Emission Spectra, Faint Objects, Gravitational Lenses, Quasars, Red Shift, Hubble Space Telescope, Lyman Alpha Radiation, Lyman Beta Radiation, Oxygen Spectra

Scientific paper

HST spectroscopic observations of 3.8-redshift gravitational lens candidate 1208+1011 are reported. Low-dispersion Faint Object Spectrograph data covering the wavelength range 3700-7800 A are obtained for each of the two components and for a comparison field; the fainter component and the black field are both separated by 0.47 arcsec from the brighter image. The spectra of both components possess strong Ly-alpha/N V and O VI/Ly-beta emission lines at a redshift of 3.8 as well as a number of similar absorption features. Both components have a ratio of the equivalent widths of the O VI complex to the Ly-alpha complex much larger than the typical value seen in large-redshift quasars. The small differences in the measured profiles of the Ly-alpha and O VI/Ly-beta emission lines of the images could be caused by absorption along different paths to a single lensed object, by unequal imaging of extended emissions, by systematic measuring errors, or by intrinsic differences in two nearly identical neighboring quasars.

Affiliated with

Also associated with

No associations

Rating

Faint object spectrograph observations of the large-redshift gravitational lens candidate 1208+1011 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 Faint object spectrograph observations of the large-redshift gravitational lens candidate 1208+1011, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Faint object spectrograph observations of the large-redshift gravitational lens candidate 1208+1011 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1113185