The $gamma$-ray deposition histories of core-collapse supernovae. (arXiv:2004.07244v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Sharon_A/0/1/0/all/0/1">Amir Sharon</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kushnir_D/0/1/0/all/0/1">Doron Kushnir</a>
The $gamma$-ray deposition history in an expanding supernova (SN) ejecta has
been mostly used to constrain models for Type Ia SN. Here we expand this
methodology to core-collapse SNe, including stripped envelope (SE; Type
Ib/Ic/IIb) and Type IIP SNe. We construct bolometric light curve using
photometry from the literature and we use the Katz integral to extract the
$gamma$-ray deposition history. We recover the tight range of $gamma$-ray
escape times, $t_0approx30-45,textrm{day}$, for Type Ia SNe, and we find a
new tight range $t_0approx80-140,textrm{day}$, for SE SNe. Type IIP SNe are
clearly separated from other SNe types with $t_0gtrsim400,textrm{day}$, and
there is a possible negative correlation between $t_0$ and the synthesized
$^{56}$Ni mass. We find that the typical masses of the synthesized $^{56}$Ni in
SE SNe are larger than those in Type IIP SNe, in agreement with the results of
Kushnir (2015). This disfavors progenitors with the same initial mass range for
these explosions. We recover the observed values of $ET$, the time-weighted
integrated luminosity from cooling emission, for Type IIP, and we find hints of
non zero $ET$ values in some SE SNe. We apply a simple $ gamma$-ray radiation
transfer code to calculate the $gamma$-ray deposition histories of models from
the literature, and we show that the observed histories are a powerful tool for
constraining models.
The $gamma$-ray deposition history in an expanding supernova (SN) ejecta has
been mostly used to constrain models for Type Ia SN. Here we expand this
methodology to core-collapse SNe, including stripped envelope (SE; Type
Ib/Ic/IIb) and Type IIP SNe. We construct bolometric light curve using
photometry from the literature and we use the Katz integral to extract the
$gamma$-ray deposition history. We recover the tight range of $gamma$-ray
escape times, $t_0approx30-45,textrm{day}$, for Type Ia SNe, and we find a
new tight range $t_0approx80-140,textrm{day}$, for SE SNe. Type IIP SNe are
clearly separated from other SNe types with $t_0gtrsim400,textrm{day}$, and
there is a possible negative correlation between $t_0$ and the synthesized
$^{56}$Ni mass. We find that the typical masses of the synthesized $^{56}$Ni in
SE SNe are larger than those in Type IIP SNe, in agreement with the results of
Kushnir (2015). This disfavors progenitors with the same initial mass range for
these explosions. We recover the observed values of $ET$, the time-weighted
integrated luminosity from cooling emission, for Type IIP, and we find hints of
non zero $ET$ values in some SE SNe. We apply a simple $ gamma$-ray radiation
transfer code to calculate the $gamma$-ray deposition histories of models from
the literature, and we show that the observed histories are a powerful tool for
constraining models.
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