Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258

Details Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258 Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258

2009-05-27

arxiv.org/abs/0905.4366v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 4 figures

Scientific paper

The Suzaku X-ray satellite observed the nearby spiral galaxy NGC 4258 for a total good exposure time of 100 ks. We present an analysis of the Suzaku XIS data, in which we confirm that the 0.5--2 keV spectra of the interstellar medium (ISM) are well-represented by a two-temperature model. The cool and hot ISM temperatures are 0.23+-0.02 and 0.59 +-0.01 keV, respectively. Suzaku's excellent spectral sensitivity enables us to measure the metal abundances of O, Ne, Mg, Si and Fe of the ISM for the first time. The resultant abundance pattern of O, Mg, Si, and Fe is consistent with that of the new solar abundance table of Lodders (2003), rather than Anders & Grevesse (1989). This suggests that the metal enrichment processes of NGC 4258 and of our Galaxy are similar.

Affiliated with

Also associated with

No associations

Rating

Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258 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 Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suzaku Observation of the Metallicity in the Interstellar Medium of NGC 4258 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-527437