Hostname: page-component-7c8c6479df-27gpq Total loading time: 0 Render date: 2024-03-29T01:36:48.907Z Has data issue: false hasContentIssue false

Discovery of supernova remnants in the Sino-German λ6 cm polarization survey of the Galactic plane

Published online by Cambridge University Press:  29 January 2014

X. Y. Gao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Jia-20 Datun Road, Chaoyang District, Beijing 100012, China. bearwards@gmail.com
X. H. Sun
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Jia-20 Datun Road, Chaoyang District, Beijing 100012, China. bearwards@gmail.com
J. L. Han
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Jia-20 Datun Road, Chaoyang District, Beijing 100012, China. bearwards@gmail.com
W. Reich
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
P. Reich
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
R. Wielebinski
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The Sino-German λ6 cm polarization survey has mapped in total intensity and polarization intensity over an area of approximately 2200 square degrees in the Galactic disk. This survey provides an opportunity to search for Galactic supernova remnants (SNRs) that were previously unknown. We discovered the new SNRs G178.2−4.2 and G25.1−2.3 which have non-thermal spectra, using the λ6 cm data together with the observations with the Effelsberg telescope at λ11 cm and λ21 cm. Both G178.2−4.2 and G25.1−2.3 are faint and have an apparent diameter greater than 1°. G178.2−4.2 shows a polarized shell. HI data suggest that G25.1−2.3 might have a distance of about 3 kpc. The λ6 cm survey data were also very important to identify two other new SNRs, G152.4−2.1 and G190.9−2.2.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2014 

References

Ferrand, G. & Safi-Harb, S. 2012, Adv. Space Res., 49, 1313Google Scholar
Foster, T., Cooper, B., Reich, W., Kothes, R., & West, J. 2013, A&A 549, A107Google Scholar
Gao, X. Y., Reich, W., Han, J. L., Sun, X. H., Wielebinski, R., Shi, W. B., Xiao, L., Reich, P., Fürst, E., Chen, M. Z., & Ma, J. 2010, A&A 515, A64Google Scholar
Gao, X. Y., Sun, X. H., Han, J. L., Reich, W., Reich, P., & Wielebinski, R. 2011, A&A 532, A144Google Scholar
Green, D. A. 2009, Bull. Astron. Soc. India, 37, 45Google Scholar
Reich, W., Reich, P., & Fürst, E. 1990b, A&AS, 83, 539Google Scholar
Reich, W., Fürst, E., Reich, P., & Reif, K. 1990a, A&AS, 85, 633Google Scholar
Reich, P., Reich, W., & Fürst, E. 1997, A&AS, 126, 413Google Scholar
Reich, W., Fürst, E., Reich, P., et al. 2004, The Magnetized Interstellar Medium, 45Google Scholar
Sun, X. H., Han, J. L., Reich, W., Reich, P., Shi, W. B., Wielebinski, R., & Fürst, E. 2007, A&A 463, 993Google Scholar
Sun, X. H., Reich, W., Han, J. L., Reich, P., Wielebinski, R., Wang, C., & Müller, P. 2011, A&A 527, A74Google Scholar
Tammann, G. A., Loeffler, W., & Schroeder, A. 1994, ApJS, 92, 487Google Scholar
Xiao, L., Han, J. L., Reich, W., Sun, X. H., Wielebinski, R., Reich, P., Shi, H., & Lochner, O. 2011, A&A 529, A15Google Scholar