Hard X-Ray Emission from the W3 Core

Details Hard X-Ray Emission from the W3 Core Hard X-Ray Emission from the W3 Core

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...486l..39h&link_type=abstract

Astrophysical Journal Letters v.486, p.L39

Astronomy and Astrophysics

Astronomy

21

Ism: H Ii Regions, Stars: Formation, X-Rays: Ism, X-Rays: Stars

Scientific paper

We report broadband imaging and spectral observations in the energy range 0.8--12 keV with ASCA toward the H II region complex W3. We find a hard X-ray source, with substantial emission at energies greater than 4 keV, coincident with the W3 core region. The SIS images show that the emission in the W3 core is extended in the east-west direction, similar to the distribution of the compact H II regions. Fitting an optically thin, thermal plasma model to the X-ray spectra from the W3 core region, we find a temperature of 7 x 107 K, an absorbing hydrogen column of 2.1 x 1022 cm-2, and a luminosity of ~1033 ergs s-1 in the 2--10 keV band. Weak line emission from the He-like ion of Fe XXV at 6.7 keV is also detected. If the X-ray emission is typical of Galactic compact H II regions, then they cannot be the primary source of the Fe XXV emission from the Galactic disk.

Affiliated with

Also associated with

No associations

Rating

Hard X-Ray Emission from the W3 Core 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 Hard X-Ray Emission from the W3 Core, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hard X-Ray Emission from the W3 Core will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1224579