TY - JOUR
T1 - A search for radio supernovae and supernova remnants in the region of NGC 1569's super star clusters
AU - Greve, A.
AU - Tarchi, A.
AU - Hüttemeister, S.
AU - de Grijs, R.
AU - Van Der Hulst, J. M.
AU - Garrington, S. T.
AU - Neininger, N.
PY - 2002/1
Y1 - 2002/1
N2 - We have used MERLIN, at 1.4 and 5 GHz, to search for radio supernovae (RSNe) and supernova remnants (SNRs) in the unobscured irregular dwarf galaxy NGC 1569, and in particular in the region of its super star clusters (SSCs) A and B. Throughout NGC 1569 we find some 5 RSNe and SNRs but the SSCs and their immediate surroundings are largely devoid of non-thermal radio sources. Even though many massive stars in the SSCs are expected to have exploded already, when compared with M 82 and its many SSCs the absence of RSNe and SNRs in and near A and B may seem plausible on statistical arguments. The absence of RSNe and SNRs in and near A and B may, however, also be due to a violent and turbulent outflow of stellar winds and supernova ejected material, which does not provide a quiescent environment for the development of SNRs within and near the SSCs.
AB - We have used MERLIN, at 1.4 and 5 GHz, to search for radio supernovae (RSNe) and supernova remnants (SNRs) in the unobscured irregular dwarf galaxy NGC 1569, and in particular in the region of its super star clusters (SSCs) A and B. Throughout NGC 1569 we find some 5 RSNe and SNRs but the SSCs and their immediate surroundings are largely devoid of non-thermal radio sources. Even though many massive stars in the SSCs are expected to have exploded already, when compared with M 82 and its many SSCs the absence of RSNe and SNRs in and near A and B may seem plausible on statistical arguments. The absence of RSNe and SNRs in and near A and B may, however, also be due to a violent and turbulent outflow of stellar winds and supernova ejected material, which does not provide a quiescent environment for the development of SNRs within and near the SSCs.
KW - galaxies: individual: NGC 1569
KW - galaxies: ISM
UR - http://www.scopus.com/inward/record.url?scp=0036188629&partnerID=8YFLogxK
U2 - 10.1051/0004-6361:20011467
DO - 10.1051/0004-6361:20011467
M3 - Article
AN - SCOPUS:0036188629
SN - 0004-6361
VL - 381
SP - 825
EP - 833
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
IS - 3
ER -