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Type Ic supernovae from the (intermediate) Palomar Transient Factory

Barbarino, C. and Sollerman, J. and Taddia, F. and Fremling, C. and Karamehmetoglu, E. and Arcavi, I. and Gal-Yam, A. and Laher, R. and Schulze, S. and Wozniak, P. and Yan, Lin (2021) Type Ic supernovae from the (intermediate) Palomar Transient Factory. Astronomy and Astrophysics, 651 . Art. No. A81. ISSN 0004-6361. doi:10.1051/0004-6361/202038890.

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Context. Type Ic supernovae represent the explosions of the most stripped massive stars, but their progenitors and explosion mechanisms remain unclear. Larger samples of observed supernovae can help characterize the population of these transients. Aims. We present an analysis of 44 spectroscopically normal Type Ic supernovae, with focus on the light curves. The photometric data were obtained over 7 years with the Palomar Transient Factory and its continuation, the intermediate Palomar Transient Factory. This is the first homogeneous and large sample of SNe Ic from an untargeted survey, and we aim to estimate explosion parameters for the sample. Methods. We present K-corrected Bgriz light curves of these SNe, obtained through photometry on template-subtracted images. We performed an analysis on the shape of the r-band light curves and confirmed the correlation between the rise parameter Δm₋₁₀ and the decline parameter Δm₁₅. Peak r-band absolute magnitudes have an average of −17.71 ± 0.85 mag. To derive the explosion epochs, we fit the r-band lightcurves to a template derived from a well-sampled light curve. We computed the bolometric light curves using r and g band data, g − r colors and bolometric corrections. Bolometric light curves and Fe II λ5169 velocities at peak were used to fit to the Arnett semianalytic model in order to estimate the ejecta mass M_(ej), the explosion energy E_K and the mass of radioactive nickel M(⁵⁶Ni) for each SN. Results. Including 41 SNe, we find average values of ⟨M_(ej)⟩ = 4.50 ± 0.79 M⊙, ⟨E_K⟩ = 1.79 ± 0.29 × 10⁵¹ erg, and ⟨M⁵⁶Ni⟩ = 0.19 ± 0.03 M⊙. The explosion-parameter distributions are comparable to those available in the literature, but our large sample also includes some transients with narrow and very broad light curves leading to more extreme ejecta masses values.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Barbarino, C.0000-0002-3821-6144
Sollerman, J.0000-0003-1546-6615
Taddia, F.0000-0002-2387-6801
Fremling, C.0000-0002-4223-103X
Karamehmetoglu, E.0000-0001-6209-838X
Arcavi, I.0000-0001-7090-4898
Gal-Yam, A.0000-0002-3653-5598
Laher, R.0000-0003-2451-5482
Schulze, S.0000-0001-6797-1889
Wozniak, P.0000-0002-9919-3310
Yan, Lin0000-0003-1710-9339
Additional Information:© ESO 2021. Article published by EDP Sciences. Received 10 July 2020; Accepted 10 November 2020; Published online 20 July 2021. The Oskar Klein Centre was funded by the Swedish Research Council. C.B. gratefully acknowledges support from the Knut and Alice Wallenberg Foundation, and from the Wennergren Foundation (PI JS). The intermediate Palomar Transient Factory project is a scientific collaboration among the California Institute of Technology, Los Alamos National Laboratory, the University of Wisconsin, Milwaukee, the Oskar Klein Center, the Weizmann Institute of Science, the TANGO Program of the University System of Taiwan, and the Kavli Institute for the Physics and Mathematics of the Universe. LANL participation in iPTF is supported by the US Department of Energy as a part of the Laboratory Directed Research and Development program. The data presented herein were obtained in part with ALFOSC, which is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOTSA. IA is a CIFAR Azrieli Global Scholar in the Gravity and the Extreme Universe Program and acknowledges support from that program, from the Israel Science Foundation (grant numbers 2108/18 and 2752/19), from the United States – Israel Binational Science Foundation (BSF), and from the Israeli Council for Higher Education Alon Fellowship. AGY’s research is supported by the EU via ERC grant No. 725161, the ISF GW excellence center, an IMOS space infrastructure grant and BSF/Transformative and GIF grants, as well as The Benoziyo Endowment Fund for the Advancement of Science, the Deloro Institute for Advanced Research in Space and Optics, The Veronika A. Rabl Physics Discretionary Fund, Paul and Tina Gardner, Yeda-Sela and the WIS-CIT joint research grant; AGY is the recipient of the Helen and Martin Kimmel Award for Innovative Investigation.
Group:Infrared Processing and Analysis Center (IPAC), Palomar Transient Factory
Funding AgencyGrant Number
Swedish Research CouncilUNSPECIFIED
Knut and Alice Wallenberg FoundationUNSPECIFIED
Wenner-Gren FoundationUNSPECIFIED
Los Alamos National LaboratoryUNSPECIFIED
Canadian Institute for Advanced Research (CIFAR)UNSPECIFIED
Israel Science Foundation2108/18
Israel Science Foundation2752/19
Binational Science Foundation (USA-Israel)UNSPECIFIED
Council for Higher Education (Israel)UNSPECIFIED
European Research Council (ERC)725161
Ministry of Science (Israel)UNSPECIFIED
German-Israeli Foundation for Research and DevelopmentUNSPECIFIED
Benoziyo Center for AstrophysicsUNSPECIFIED
Deloro Institute for Advanced Research in Space and OpticsUNSPECIFIED
Veronika A. Rabl Physics Discretionary FundUNSPECIFIED
Paul and Tina GardnerUNSPECIFIED
Weizmann Institute of ScienceUNSPECIFIED
Helen and Martin Kimmel AwardUNSPECIFIED
Subject Keywords:supernovae: general
Record Number:CaltechAUTHORS:20210202-095227669
Persistent URL:
Official Citation:Type Ic supernovae from the (intermediate) Palomar Transient Factory. C. Barbarino, J. Sollerman, F. Taddia, C. Fremling, E. Karamehmetoglu, I. Arcavi, A. Gal-Yam, R. Laher, S. Schulze, P. Wozniak and Lin Yan. A&A, 651 (2021) A81; DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107855
Deposited By: George Porter
Deposited On:03 Feb 2021 23:21
Last Modified:04 Aug 2021 19:29

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