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R-band light-curve properties of Type Ia supernovae from the (intermediate) Palomar Transient Factory
S. Papadogiannakis, A. Goobar, R. Amanullah +15
We present the best 265 sampled R-band light curves of spectroscopically identified Type Ia supernovae (SNe) from the Palomar Transient Factory (PTF; 2009-2012) survey and the inte…
The origin of polarization in kilonovae and the case of the gravitational-wave counterpart AT 2017gfo
M. Bulla, S. Covino, K. Kyutoku +8
The Gravitational Wave (GW) event GW 170817 was generated by the coalescence of two neutron stars (NS) and produced an electromagnetic transient, labelled AT 2017gfo, that was targ…
iPTF16abc and the population of Type Ia supernovae: Comparing the photospheric, transitional and nebular phases
S. Dhawan, M. Bulla, A. Goobar +6
Key information about the progenitor system and the explosion mechanism of Type Ia supernovae (SNe~Ia) can be obtained from early observations, within a few days from explosion. iP…
A nearby superluminous supernova with a long pre-maximum 'plateau' and strong CII features
J. P. Anderson, P. J. Pessi, L. Dessart +63
Super-luminous supernovae (SLSNe) are rare events defined as being significantly more luminous than normal terminal stellar explosions. The source of the extra powering needed to a…
Testing the magnetar scenario for superluminous supernovae with circular polarimetry
Aleksandar Cikota, Giorgos Leloudas, Mattia Bulla +15
Superluminous supernovae (SLSNe) are at least 5 times more luminous than common supernovae (SNe). Especially hydrogen-poor SLSN-I are difficult to explain with conventional p…
Shedding light on the Type Ia supernova extinction puzzle: dust location found
M. Bulla, A. Goobar, S. Dhawan
The colour evolution of reddened Type Ia supernovae can place strong constraints on the location of dust and help address the question of whether the observed extinction stems from…