Insights from Modeling Magnetar-driven Light Curves of Stripped-envelope Supernovae
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866913609631662080 |
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| author | Kumar, Amit |
| author_facet | Kumar, Amit |
| contents | This work presents the semi-analytical light curve modelling results of 11 stripped-envelope SNe (SESNe), where millisecond magnetars potentially drive their light curves. The light-curve modelling is performed utilizing the $χ^2$-minimisation code $\texttt{MINIM}$ considering millisecond magnetar as a central engine powering source. The magnetar model well regenerates the bolometric light curves of all the SESNe in the sample and constrains numerous physical parameters, including magnetar's initial spin period ($P_\textrm{i}$) and magnetic field ($B$), explosion energy of supernova ($E_\textrm{exp}$), progenitor radius ($R_\textrm{p}$), etc. Within the sample, the superluminous SNe 2010kd and 2020ank exhibit the lowest $B$ and $P_\textrm{i}$ values, while the relativistic Ic broad-line SN 2012ap shows the highest values for both parameters. The explosion energy for all SESNe in the sample (except SN 2019cad), exceeding $\gtrsim$2 $\times$ 10$^{51}$ erg, indicates there is a possibility of a jittering jet explosion mechanism driving these events. Additionally, a correlation analysis identifies linear dependencies among parameters derived from light curve analysis, revealing positive correlations between rise and decay times, $P_\textrm{i}$ and $B$, $P_\textrm{i}$ and $R_\textrm{p}$, and $E_\textrm{exp}$ and $R_\textrm{p}$, as well as strong anti-correlations of $P_\textrm{i}$ and $B$ with the peak luminosity. Principal Component Analysis is also applied to key parameters to reduce dimensionality, allowing a clearer visualization of SESNe distribution in a lower-dimensional space. This approach highlights the diversity in SESNe characteristics, underscoring unique physical properties and behaviour across different events in the sample. This study motivates further study on a more extended sample of SESNe to look for millisecond magnetars as their powering source. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_09357 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Insights from Modeling Magnetar-driven Light Curves of Stripped-envelope Supernovae Kumar, Amit High Energy Astrophysical Phenomena This work presents the semi-analytical light curve modelling results of 11 stripped-envelope SNe (SESNe), where millisecond magnetars potentially drive their light curves. The light-curve modelling is performed utilizing the $χ^2$-minimisation code $\texttt{MINIM}$ considering millisecond magnetar as a central engine powering source. The magnetar model well regenerates the bolometric light curves of all the SESNe in the sample and constrains numerous physical parameters, including magnetar's initial spin period ($P_\textrm{i}$) and magnetic field ($B$), explosion energy of supernova ($E_\textrm{exp}$), progenitor radius ($R_\textrm{p}$), etc. Within the sample, the superluminous SNe 2010kd and 2020ank exhibit the lowest $B$ and $P_\textrm{i}$ values, while the relativistic Ic broad-line SN 2012ap shows the highest values for both parameters. The explosion energy for all SESNe in the sample (except SN 2019cad), exceeding $\gtrsim$2 $\times$ 10$^{51}$ erg, indicates there is a possibility of a jittering jet explosion mechanism driving these events. Additionally, a correlation analysis identifies linear dependencies among parameters derived from light curve analysis, revealing positive correlations between rise and decay times, $P_\textrm{i}$ and $B$, $P_\textrm{i}$ and $R_\textrm{p}$, and $E_\textrm{exp}$ and $R_\textrm{p}$, as well as strong anti-correlations of $P_\textrm{i}$ and $B$ with the peak luminosity. Principal Component Analysis is also applied to key parameters to reduce dimensionality, allowing a clearer visualization of SESNe distribution in a lower-dimensional space. This approach highlights the diversity in SESNe characteristics, underscoring unique physical properties and behaviour across different events in the sample. This study motivates further study on a more extended sample of SESNe to look for millisecond magnetars as their powering source. |
| title | Insights from Modeling Magnetar-driven Light Curves of Stripped-envelope Supernovae |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2412.09357 |