Bright but slow - Type II supernovae from OGLE-IV - Implications for magnitude-limited surveys

D. Poznanski; Z. Kostrzewa-Rutkowska; L. Wyrzykowski; N. Blagorodnova

doi:10.1093/mnras/stv428

Bright but slow - Type II supernovae from OGLE-IV - Implications for magnitude-limited surveys

D. Poznanski^*, Z. Kostrzewa-Rutkowska, L. Wyrzykowski, N. Blagorodnova

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We study a sample of 11 Type II supernovae (SNe) discovered by the OGLE-IV survey. All objects have well-sampled I-band light curves, and at least one spectrum. We find that two or three of the 11 SNe have a declining light curve, and spectra consistent with other SNe II-L, while the rest have plateaus that can be as short as 70 d, unlike the 100 d typically found in nearby galaxies. The OGLE SNe are also brighter, and show that magnitude-limited surveys find SNe that are different than usually found in nearby galaxies.We discuss this sample in the context of understanding Type II SNe as a class and their suggested use as standard candles.

Original language	English
Pages (from-to)	1753-1759
Number of pages	7
Journal	Monthly Notices of the Royal Astronomical Society
Volume	449
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stv428
State	Published - 11 May 2015

Funding

Funders	Funder number
European Organization for Astronomical Research
National Aeronautics and Space Administration
Jet Propulsion Laboratory
FP7/2007
PESSTO
program 'Ideas Plus' award
spectra
California Institute of Technology
NASA/IPAC
FP7/2007-2013
Seventh Framework Programme	264895
Ministry of Science and Higher Education of the Russian Federation
programme ID
European School of Oncology	188.D-3003
Ministerstwo Nauki i Szkolnictwa Wyższego	IdP2012 000162

Keywords

Supernovae: general

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10.1093/mnras/stv428

Cite this

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abstract = "We study a sample of 11 Type II supernovae (SNe) discovered by the OGLE-IV survey. All objects have well-sampled I-band light curves, and at least one spectrum. We find that two or three of the 11 SNe have a declining light curve, and spectra consistent with other SNe II-L, while the rest have plateaus that can be as short as 70 d, unlike the 100 d typically found in nearby galaxies. The OGLE SNe are also brighter, and show that magnitude-limited surveys find SNe that are different than usually found in nearby galaxies.We discuss this sample in the context of understanding Type II SNe as a class and their suggested use as standard candles.",

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AU - Blagorodnova, N.

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AB - We study a sample of 11 Type II supernovae (SNe) discovered by the OGLE-IV survey. All objects have well-sampled I-band light curves, and at least one spectrum. We find that two or three of the 11 SNe have a declining light curve, and spectra consistent with other SNe II-L, while the rest have plateaus that can be as short as 70 d, unlike the 100 d typically found in nearby galaxies. The OGLE SNe are also brighter, and show that magnitude-limited surveys find SNe that are different than usually found in nearby galaxies.We discuss this sample in the context of understanding Type II SNe as a class and their suggested use as standard candles.

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Bright but slow - Type II supernovae from OGLE-IV - Implications for magnitude-limited surveys

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