Talk by John McCann Paper by D Poznanski Z KostrzewaRutkowska L Wyrzykowski amp N Blagorodnova OGLEIV OGLE Optical Gravitational Lensing Experiment Phase four Las ID: 551528
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Slide1
Bright but slow – Type II supernovae from OGLE-IV & magnitude limited surveys
Talk by: John McCann
Paper by: D.
Poznanski
, Z. Kostrzewa-Rutkowska, L. Wyrzykowski & N.
BlagorodnovaSlide2
OGLE-IV
OGLE – Optical Gravitational Lensing Experiment, Phase four
Las Camapanas Observatory in ChileStarted in 1992 concern with detecting dark matter
Current phase uses a 32 chip mosaic CCD camera
Source: http
://
ogle.astrouw.edu.pl
/
cont
/7_photogallery/
gallery_lco.phpSlide3
Supernovae Type II
Type II – Hydrogen in the spectrumType II-P – light curve “plateaus”
Type II-L – light curve decreases “linearly”
Source:
https
://
en.wikipedia.org
/
wiki
/
Type_II_supernova#mediaviewer
/
File:SNIIcurva.pngSlide4
Eleven Type II supernovae discovered by OGLE-IV surveySlide5
Absolute magnitude light curves of the OGLE sampleSlide6
Normalized light curves of supernovaeSlide7
Black dots –
Faran
et al. (2014a)
Blue
&
Green
crosses – OGLE
Magnitude
vs.
Plateau
DurationSlide8
Black dots –
Faran
et al. (2014a)Blue & Green
crosses – OGLE
Red
dots
– Numerical models Dessart et. Al (2010)
Velocity vs.
Plateau
DurationSlide9
Velocity vs. MagnitudeSlide10
Conclusion
Analyzing the OGLE data set found 3 or 4 SNII-L
(~30% of the sample)The SNII-P mostly standard except for high luminosity, shorter plateaus and longer rise times
No single parameter to explain range of outcomes