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<div class="moz-cite-prefix">On 2018-09-12 14:10, Alexis Brandeker
wrote:<br>
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<div class="PlainText">When & where: Friday 2018-09-14 at
10:30 in FC61.<br>
<br>
Who: Cristina Barbarino, Dept. of Astronomy, SU<br>
<br>
Title: Stripped Envelope Supernovae from (i)PTF<br>
<br>
Abstract:<br>
Stripped envelope supernovae (SESNe) are the result of the
collapse of a<br>
massive star whose outer layer of hydrogen has been
partially or<br>
completely removed. Two main scenario have been proposed for
the<br>
progenitor channel: a single massive star or a binary
system. They<br>
represent a quite rare class of supernovae (~34% of
core-collapse) and<br>
only in the recent time with the upcoming of several surveys
it was<br>
possible to build up a sample of objects being statistically<br>
significant. In this scenario, the Palomar Transient Factory
(PTF) and<br>
the intermediate PTF (iPTF) bring their contributions;
infact, unlike<br>
all their predecessors, those were untargeted surveys. The
surveys took<br>
place through the use, mainly, of the P48 and P60 telescopes
at the<br>
Palomar Observatory but several other facilities were
involved to<br>
implement the collected data set (e.g. P200, NOT, LCOGT,
Keck,<br>
Gemini...) on the window of time 2009-2016. These surveys
have been a<br>
forerunner for the upcoming Zwicky Transient Facility (ZTF)
which<br>
already saw its first light and will be fully operative in
early 2018. I<br>
will present the SNe Ib/c sample found from PTF and iPTF.
The analysis<br>
is mainly focused on the photometric dataset, in order to
estimate the<br>
explosion parameters and to investigate the progenitor
system.<br>
<br>
All welcome!<br>
<br>
Angela & Alexis, Astronomy seminar organisers<br>
<br>
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