Observations of 3C273 with the Goddard High Resolution Spectrograph on the Hubble Space Telescope. II.

Details Observations of 3C273 with the Goddard High Resolution Spectrograph on the Hubble Space Telescope. II. Observations of 3C273 with the Goddard High Resolution Spectrograph on the Hubble Space Telescope. II.

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114..554b&link_type=abstract

Astronomical Journal v.114, p. 554-564 (1997)

Astronomy and Astrophysics

Astronomy

10

Quasars: Individual: 3C 273, Quasars: Emission Lines

Scientific paper

Observations of the quasar 3C 273 taken with the Goddard High Resolution Spectrograph in November and December 1993 are presented here. We have included both the fully-reduced spectra, and spectra combined with our earlier (1991) observations. There are a total of 10 new medium resolution exposures covering four wavelength regions: 1164-1201 Angstroms, 1214-1251 Angstroms, 1537-1573 Angstroms, and 1633-1670 Angstroms. We confirm the suggestion of Morris et al. (1991) that the galactic Si IV lambda 1393 line is blended with an extragalactic lya line by observing the lyb counterpart to this extragalactic line. We obtain an improved upper limit on the C IV/H I ratio in these weak low redshift lya absorption systems by coadding the corresponding C IV spectral regions. Improved line profiles for the galactic C IV and N V absorption are also presented and discussed. The improved measurements lead to a downward revision of the galactic C IV column density, log N (C IV) = 14.46+/- 0.04.

Affiliated with

Also associated with

No associations

Rating

Observations of 3C273 with the Goddard High Resolution Spectrograph on the Hubble Space Telescope. II. 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 Observations of 3C273 with the Goddard High Resolution Spectrograph on the Hubble Space Telescope. II., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of 3C273 with the Goddard High Resolution Spectrograph on the Hubble Space Telescope. II. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1877967