FUSE observations of the HeII Lyman alpha forest towards HS 1700+6416

Details FUSE observations of the HeII Lyman alpha forest towards HS 1700+6416 FUSE observations of the HeII Lyman alpha forest towards HS 1700+6416

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..348...41r&link_type=abstract

Astrophysics in the Far Ultraviolet: Five Years of Discovery with FUSE ASP Conference Series, Vol. 348, Proceedings of the Confe

Astronomy and Astrophysics

Astrophysics

5

Scientific paper

We present FUSE observations of the He II Lyα forest in the redshift range 2.3 < z < 2.7 towards HS 1700+6416. Between October 2002 and February 2003, the brightness of the QSO increased by a factor 2. Therefore, with an exposure time of 203 ks during orbital night, the quality of the resulting spectrum is comparable to the HE 2347-4342 data. This second line of sight with a resolved He II Lyman alpha forest reveals a similar variation of several orders of magnitude of the column density ratio η = N(He II)/N(H I)} and confirms the results of previous studies. The well-known metal line spectrum of HS 1700+6416 permits to examine the influence of metal line absorption on the He II column densities.

Affiliated with

Also associated with

No associations

Rating

FUSE observations of the HeII Lyman alpha forest towards HS 1700+6416 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 FUSE observations of the HeII Lyman alpha forest towards HS 1700+6416, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FUSE observations of the HeII Lyman alpha forest towards HS 1700+6416 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1860152