Niculescu-Duvaz, Maria;
Barlow, MJ;
Dunn, William;
Bevan, Antonia;
Ahmed, Omar;
Arkless, David;
Barker, Jon;
... Matsuura, M; + view all
(2022)
Quantifying the dust in SN 2012aw and iPTF14hls with ORBYTS.
Monthly Notices of the Royal Astronomical Society
, 519
(2)
pp. 2940-2950.
10.1093/mnras/stac3609.
Preview |
Text
Barlow_Quantifying the dust in SN 2012aw and iPTF14hls with ORBYTS_VoR.pdf Download (1MB) | Preview |
Abstract
Core-collapse supernovae (CCSNe) are capable of producing large quantities of dust, with strong evidence that ejecta dust masses can grow significantly over extended periods of time. Red–blue asymmetries in the broad emission lines of CCSNe can be modelled using the Monte Carlo radiative transfer code damocles, to determine ejecta dust masses. To facilitate easier use of damocles, we present a Tkinter graphical user interface (GUI) running damocles. The GUI was tested by high school students through the Original Research By Young Twinkle Students programme, who used it to measure the dust masses formed at two epochs in Type IIP CCSNe, SN 2012aw and iPTF14hls, demonstrating that a wide range of people can contribute to scientific advancement. Bayesian methods quantified uncertainties on our model parameters. From the red scattering wing in the day 1863 Hα profile of SN 2012aw, we constrained the dust composition to large (radius >0.1 μm) silicate grains, with a dust mass of $6.0^{+21.9}_{-3.6}\times 10^{-4}~\mathrm{ M}_\odot$. From the day 1158 Hα profile of SN 2012aw, we found a dust mass of $3.0^{+14}_{-2.5}\times 10^{-4}$ M⊙. For iPTF14hls, we found a day 1170 dust mass of 8.1$^{+81}_{-7.6}\times 10^{-5}$ M⊙ for a dust composition consisting of 50 per cent amorphous carbon and 50 per cent astronomical silicate. At 1000 d post-explosion, SN 2012aw and iPTF14hls have formed less dust than the peculiar Type II SN 1987A, suggesting that SN 1987A may have formed a larger dust mass than typical Type IIP’s.
| Type: | Article |
|---|---|
| Title: | Quantifying the dust in SN 2012aw and iPTF14hls with ORBYTS |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stac3609 |
| Publisher version: | https://doi.org/10.1093/mnras/stac3609 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | supernovae: individual: SN 2012aw, iPTF14hls, dust, extinction, ISM: supernova remnants |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10168424 |
Archive Staff Only
 |
View Item |
