Effective Area of the Cosmic Origins Spectrograph below 1150 Å

Details Effective Area of the Cosmic Origins Spectrograph below 1150 Å Effective Area of the Cosmic Origins Spectrograph below 1150 Å

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21546407m&link_type=abstract

American Astronomical Society, AAS Meeting #215, #464.07; Bulletin of the American Astronomical Society, Vol. 42, p.499

Astronomy and Astrophysics

Astronomy

Scientific paper

The G140L segment B channel (R 2,000) of the Cosmic Origins Spectrograph (COS) recently installed on the Hubble Space Telescope (HST) has an effective area consistent with 10 cm2 in the bandpass between the Lyman edge at 912 Å and Lyβ. It has a slight plateau of 20 cm2 near 1050 Å and rises to a peak in excess of 1100 cm2 longward of 1140 Å. Up until now the general astronomical community has had only limited access to a low resolving power R 2,000 far-UV spectrograph, extending down to the Lyman limit, in the form of the shuttle carried instruments; the Hopkins Ultraviolet Telescope and the Berkeley Extreme and Far-UV Spectrograph. The low resolving power provides a unique capability to reach extremely faint flux limits and will enable new science investigations, such as those seeking to quantify the escape fraction of Lyman continuum photons from galaxies at low redshift, study the He II Gunn-Peterson effect in the redshift range 2 < z < 2.8, measure CO/H2 in dense interstellar environments, or make observations of the O VI λλ 1032, 1038 doublet. Observations of point sources will have the highest spectral resolution, since the small 2."5 diameter entrance aperture of COS is not optimized for extended source observations.

Affiliated with

Also associated with

No associations

Rating

Effective Area of the Cosmic Origins Spectrograph below 1150 Å 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 Effective Area of the Cosmic Origins Spectrograph below 1150 Å, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effective Area of the Cosmic Origins Spectrograph below 1150 Å will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1887101