EDP Sciences
Free Access
Volume 392, Number 3, September IV 2002
Page(s) 955 - 962
Section Formation, structure and evolution of stars
DOI https://doi.org/10.1051/0004-6361:20020963
Published online 09 September 2002

A&A 392, 955-962 (2002)
DOI: 10.1051/0004-6361:20020963

High-Resolution X-ray imaging and spectroscopy of N 103B

K. J. van der Heyden1, E. Behar2, J. Vink2, 3, A. P. Rasmussen2, J. S. Kaastra1, J. A. M. Bleeker1, S. M. Kahn2 and R. Mewe1

1  SRON National Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
2  Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
3  Chandra fellow
    e-mail: behar@astro.columbia.edu; jvink@astro.columbia.edu; arasmus@astro.columbia.edu; J.S.Kaastra@sron.nl; J.A.M.Bleeker@sron.nl; skahn@astro.columbia.edu; R.Mewe@sron.nl

(Received 11 March 2002 / Accepted 26 June 2002)

The X-ray emission from the young supernova remnant (SNR) N 103B is measured and analysed using the high-resolution cameras and spectrometers on board XMM-Newton and Chandra. The spectrum from the entire remnant is reproduced very well with three plasma components of $kT_{\rm e} = 0.55$, 0.65, and 3.5 keV, corresponding roughly to line emission by the O-K, Fe-L, and Fe-K species, respectively. Narrow band images reveal different morphologies for each component. The $kT_{\rm e} = 0.65$ keV component, which dominates the emission measure ( $4.5\times10^{65}$ m -3), is in ionisation equilibrium. This provides a lower limit of 1200 yrs to the age of the remnant, which is in agreement with the previously assumed age of the remnant (1500 yrs). Based on the measured energy of the Fe-K feature at 6.5 keV, the hot (3.5 keV) component is found to be recently shocked (~200 yrs) and still ionising. The high elemental abundances of O and Ne and the low abundance of Fe could imply that N 103B originated from a type II supernova (SN) rather than a type Ia SN as previously thought.

Key words: ISM: supernova remnants -- ISM: individual: N103B

Offprint request: K. J. van der Heyden, K.J.van.der.Heyden@sron.nl

SIMBAD Objects in preparation

© ESO 2002

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.