[FeII] as a tracer of supernova rate in nearby starburst galaxies
نویسندگان
چکیده
منابع مشابه
The infrared supernova rate in starburst galaxies
We report the results of our ongoing search for extincted supernovae (SNe) at near-infrared wavelengths. We have monitored at 2.2μm a sample of 46 Luminous Infrared Galaxies and detected 4 SNe. The number of detections is still small but sufficient to provide the first estimate of supernova rate at near-infrared wavelengths. We measure a SN rate of SN r = 7.6±3.8 SNu which is an order of magnit...
متن کاملThe Supernova Rate in Starburst Galaxies
We conducted an optical CCD search for supernovae in a sample of 142 bright (m(B) 16 mag), nearby (z 0:03) starburst galaxies over the period 1988 December to 1991 June, to a limiting R-band magnitude of 18. Five supernovae were found, in all cases outside the host galaxy's nucleus. We determine supernova rates in the extranuclear regions to be 0:7h 2 SNU for type Ia, 0:7h 2 SNU for type Ib/c, ...
متن کاملDirect measurement of the supernova rate in starburst galaxies
Supernovae play a key role in the dynamics, structure, and chemical evolution of galaxies. The massive stars that end their lives as supernovae live for short enough times that many are still associated with dusty star formation regions when they explode, making them difficult to observe at visible wavelengths. In active star forming regions (galactic nuclei and starburst regions), dust extinti...
متن کاملThe Nature of the Compact Supernova Remnants in Starburst Galaxies
Radio observations of starburst regions in galaxies have revealed groups of compact nonthermal sources that may be radiative supernova remnants expanding in the interclump medium of molecular clouds. Because of the high pressure in starburst regions, the interclump medium may have a density ∼ 10 H atoms cm in a starburst nucleus like M82 and & 10 H atoms cm in an ultraluminous galaxy like Arp 2...
متن کاملSearching for obscured supernovae in nearby starburst galaxies
Very little is currently known about the behaviour of SNe in a starburst environment. The enhanced metallicity in starburst regions is expected to result in large mass-loss rates (Vink et al. 2001) for the SN progenitor stars. In addition, many of these events are expected to occur within molecular clouds (Chevalier & Fransson 2001), adding further to the density of material surrounding the SN....
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201218772