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Core-collapse supernovae are among the prime candidate sources of high energy neutrinos. Accordingly, the IceCube collaboration has started a program to search for such a signal. IceCube operates an online search for neutrino bursts,…

高能天体物理现象 · 物理学 2010-01-21 D. F. Cowen , A. Franckowiak , M. Kowalski

I summarize what we have learned about the nature of stars that ultimately explode as core-collapse supernovae from the examination of images taken prior to the explosion. By registering pre-supernova and post-supernova images, usually…

太阳与恒星天体物理 · 物理学 2009-08-14 Douglas C. Leonard

We discuss recent advances in the radiative-hydrodynamic modeling of core collapse supernovae in multi-dimensions. A number of earlier attempts at fully radiation-hydrodynamic models utilized either the grey approximation to describe the…

天体物理学 · 物理学 2017-08-23 F. Douglas Swesty , Eric S. Myra

We present R-Band light curves of Type II supernovae (SNe) from the Caltech Core Collapse Program (CCCP). With the exception of interacting (Type IIn) SNe and rare events with long rise times, we find that most light curve shapes belong to…

宇宙学与河外天体物理 · 物理学 2015-06-11 Iair Arcavi

We examine the light curve parameters of 97 nearby Type Ia supernovae in the ultraviolet and optical using observations from the Swift Ultra-Violet/Optical Telescope. Our light curve models used a linear combinations of templates, which…

太阳与恒星天体物理 · 物理学 2022-05-18 Yaswant Devarakonda , Peter J. Brown

Supernovae (SNe) are among the most intensely studied objects of modern astrophysics, but due to their complex physical nature, theoretical models are essential to understand better these exploding stars, as well as the properties of the…

高能天体物理现象 · 物理学 2018-08-08 Andrea P. Nagy

We present survey results obtained from the UBVRI optical photometric follow-up of 19 bright core-collapse SNe during 2002-2012 using 1-m class optical telescopes operated by the Aryabhatta Research Institute of Observational Science…

高能天体物理现象 · 物理学 2015-06-15 Brijesh Kumar

We present advances in modeling Type IIP supernovae using MESA for evolution to shock breakout coupled with STELLA for generating light and radial velocity curves. Explosion models and synthetic light curves can be used to translate…

太阳与恒星天体物理 · 物理学 2019-06-27 Jared A. Goldberg , Lars Bildsten , Bill Paxton

Some fraction of the material ejected in a core collapse supernova explosion may remain bound to the compact remnant, and eventually turn around and fall back. We show that the late time (> days) power associated with the accretion of this…

高能天体物理现象 · 物理学 2015-06-11 Jason Dexter , Daniel Kasen

Literature data are collated for 38 stripped-envelope core-collapse supernovae (SE SNe; i.e. SNe IIb, Ib, Ic and Ic-BL) that have good light curve coverage in more than one optical band. Using bolometric corrections derived in previous…

太阳与恒星天体物理 · 物理学 2016-02-03 Joe Lyman , David Bersier , Phil James , Paolo Mazzali , John Eldridge , Morgan Fraser , Elena Pian

Connecting observations of core-collapse supernova explosions to the properties of their massive star progenitors is a long-sought, and challenging, goal of supernova science. Recently, Barker et al. (2022) presented bolometric light curves…

高能天体物理现象 · 物理学 2023-02-15 Brandon L. Barker , Evan P. O'Connor , Sean M. Couch

We present an analysis of the nebular spectra of 103 stripped envelope (SE) supernovae (SNe) collected from the literature and observed with the Subaru Telescope from 2002 to 2012, focusing on [O I] 6300, 6363. The line profile and width of…

We present fits of generalized semi-analytic supernova (SN) light curve (LC) models for a variety of power inputs including Ni-56 and Co-56 radioactive decay, magnetar spin-down, and forward and reverse shock heating due to supernova…

高能天体物理现象 · 物理学 2015-06-16 E. Chatzopoulos , J. C. Wheeler , J. Vinko , Z. L. Horvath , A. Nagy

Ascertaining the core-collapse supernova mechanism is a complex, and yet unsolved, problem dependent on the interaction of general relativity, hydrodynamics, neutrino transport, neutrino-matter interactions, and nuclear equations of state…

I present an overview of optical observations (mostly spectra) of Type II, Ib, and Ic supernovae (SNe). SNe II are defined by the presence of hydrogen, and exhibit a very wide variety of properties. SNe II-L tend to show evidence of…

天体物理学 · 物理学 2009-11-06 Alexei V. Filippenko

We investigate light-curve and spectral properties of ultra-stripped core-collapse supernovae. Ultra-stripped supernovae are the explosions of heavily stripped massive stars which lost their envelopes via binary interactions with a compact…

The X-ray signal from hydrogen-rich supernovae (SNe II) in the first tens to hundreds of days after the shock breakout encodes important information about the circumstellar material (CSM) surrounding their progenitors before explosion. In…

高能天体物理现象 · 物理学 2018-10-31 Viktoriya Morozova , James M. Stone

The overwhelming evidence that the core collapse supernova mechanism is inherently multidimensional, the complexity of the physical processes involved, and the increasing evidence from simulations that the explosion is marginal presents…

天体物理学 · 物理学 2009-11-13 S. W. Bruenn , C. J. Dirk , A. Mezzacappa , J. C. Hayes , J. M. Blondin , W. R. Hix , O. E. B. Messer

The multi-messenger observation of the next galactic core-collapse supernova will shed light on the different physical processes involved in these energetic explosions. Good timing and pointing capabilities of neutrino detectors would help…

高能天体物理现象 · 物理学 2020-09-18 Alexis Coleiro , Marta Colomer Molla , Damien Dornic , Massimiliano Lincetto , Vladimir Kulikovskiy

Inferences on the properties Type II supernovae (SNe) can provide significant insights into the lives and deaths of the astrophysical population of massive stars and potentially provide measurements of luminosity distance, independent of…