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Observations of Cosmic Explosions Review, and results from the Palomar Transient Factory. PTF highlights Presentation at the Tsinghua workshop Novem ber 5 , 2012. Avishay Gal-Yam (for PTF) Weizmann Institute of Science. Avishay Gal-Yam | Weizmann Institute of Science.
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Observations ofCosmic Explosions Review, and results from the Palomar Transient Factory PTF highlights Presentation at the Tsinghua workshop November 5, 2012 Avishay Gal-Yam (for PTF) Weizmann Institute of Science Avishay Gal-Yam | Weizmann Institute of Science
Transient observations: discovery (optical) Probable SN (good) AGN (but maybe SN?) AGN - resolved Variable star Variable AGN (QSO) Artifact (bad subtraction) Avishay Gal-Yam | Weizmann Institute of Science
Transient observations: discovery (optical) Targeted survey: KAIT/LOSS (BOSS) Untargeted: PTF Avishay Gal-Yam | Weizmann Institute of Science
KAIT (Berkeley): The most successful Supernova search Discovering a Supernova PTF
Supernova spectra [get to know WISeREP) Avishay Gal-Yam | Weizmann Institute of Science
Supernova spectra – the unusual Avishay Gal-Yam | Weizmann Institute of Science
Supernova light curves Drout • Type Ia • Type Ib/c • Type II • Type IIn • SLSN Arcavi II-P Kiewe II-L IIb Avishay Gal-Yam | Weizmann Institute of Science
Supernova physics (brief) Type Ia supernovae: binary white dwarfs; thermonuclear explosions Core-collapse SNe (massive-star explosions): release of gravitational energy Others? AICs/EC SNe; PISNe ? Avishay Gal-Yam | Weizmann Institute of Science
PTF results: 5 major themes Untargeted: unusual locations High cadence: early; rapid; well-sampled In nearby galaxies: faint and fast Large samples: population studies High throughput: rare events Avishay Gal-Yam | Weizmann Institute of Science
Unusual locations – remote outskirts of galaxies Type IaSNe - PTF10ops: talk to Mark and Kate Ca-rich faint SNe: Kasliwal SN 2010jp (PTF10aaxi): Smith Avishay Gal-Yam | Weizmann Institute of Science
Unusual locations – dwarf galaxies Arcavi: different population – more below Neill: extreme hosts of extreme SNe (except for SLSN-II!; Quimby) Ben-Ami: PTF12gzk Avishay Gal-Yam | Weizmann Institute of Science
High cadence: early SN 2011fe: SN Ia rise [Nugent, Bloom] SN 2011dh and friends: early structure [Arcavi] PTF10vgv: tight rise-time limits [Corsi] SN IIn pre-explosion outburst (Ofek) Avishay Gal-Yam | Weizmann Institute of Science
High cadence: rapid PTF10vdl [Gal-Yam] SN 2011dh [Arcavi, Horesh] [SN 2011fe] Avishay Gal-Yam | Weizmann Institute of Science
High cadence: well sampled PTF12gzk (Ben-Ami) – first look at the rise of a SN Ic Avishay Gal-Yam | Weizmann Institute of Science
In nearby galaxies: faint and fast Kasliwal’s thesis Avishay Gal-Yam | Weizmann Institute of Science
Large samples: population studies Arcavi’s thesis: effects of Z? Avishay Gal-Yam | Weizmann Institute of Science
Large samples: population studies SNeIIn (Silverman] Kiewe Avishay Gal-Yam | Weizmann Institute of Science
High Throughtput: rare events - SLSNe SLSN-I (Quimby): low-z Avishay Gal-Yam | Weizmann Institute of Science
High Throughtput: rare events - SLSNe SLSN-R (Yaron) Avishay Gal-Yam | Weizmann Institute of Science
High Throughtput: rare events – SN 2010jp (Smith) Jet in a type II? Avishay Gal-Yam | Weizmann Institute of Science
High Throughtput: rare events – PTF10iue Never-ending SN Avishay Gal-Yam | Weizmann Institute of Science
High Throughtput: rare events – PTF12gzk Type Ic with high velocities, long rise time, large Ni mass, but not a Ic-BL [Ben-Ami] Avishay Gal-Yam | Weizmann Institute of Science
High Throughtput: rare events – more coming… Avishay Gal-Yam | Weizmann Institute of Science
Future of PTF Projects ends at end of 2012 Joint studies: PTF+GALEX, PTF+JVLA … We will continue as iPTF with focussed studies (e.g. even higher cadence) Expecting ZTF 2015 LIMSAT: space UV PTF … Thanks! Avishay Gal-Yam | Weizmann Institute of Science