SN 2022acko: a low-luminosity SNe IIP with signs of early circumstellar interaction
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DOI: 10.1093/mnras/staf893
Abstract: We present optical-ultraviolet photometry and optical spectra for the type II supernova (SN) 2022acko. The spectroscopic observations span phases from ∼ 1.5 to ∼ 60 days after the explosion, while the light curve was observed up… read more here.
Keywords: low luminosity; circumstellar interaction; emission; 2022acko low ... See more keywords
The Type II superluminous SN 2008es at late times: near-infrared excess and circumstellar interaction
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DOI: 10.1093/mnras/stz1928
Abstract: SN 2008es is one of the rare cases of a Type II superluminous supernova (SLSN), showing no narrow features in its early-time spectra, and therefore, its powering mechanism is under debate between circumstellar interaction (CSI)… read more here.
Keywords: near infrared; powering mechanism; time; circumstellar interaction ... See more keywords