Interstellar Carbon Abundance

Details Interstellar Carbon Abundance Interstellar Carbon Abundance

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aca....50..133g&link_type=abstract

Acta Astronomica, v.50, pp.133-149, (2000).

Astronomy and Astrophysics

Astronomy

6

Ism: Abundances, Ism: Dust, Extinction, Ultraviolet: Ism

Scientific paper

We present 10 new measurements of carbon gas phase column density in the interstellar medium. We have used spectra made with the Goddard High Resolution Spectrograph aboard the Hubble Space Telescope containing the CII 1334.5 Ang and CII* 1335.7 Ang lines. The continuum reconstruction method has been used to obtain the carbon column density from the Lorentzian damped lines. Extinction curve parameters are determined in selected directions and relation between C/H ratio and extinction parameters is discussed. A correlation has been found between C/H and the strength of the 2175 Ang bump. Unlike previous results, we notice that C/H changes with fractional abundance of molecular hydrogen, f(H_2). The average value of C/H=3.55*10^{-4} for lines of sight with f(H_2)<1*10^{-3} is the same as solar photospheric abundance from Grevese and Noels (1993) and may represent the real cosmic carbon abundance.

Affiliated with

Also associated with

No associations

Rating

Interstellar Carbon Abundance 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 Interstellar Carbon Abundance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar Carbon Abundance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1428681