212 citations · 1.2k across the 41 of their papers we have counts for
8 papers · 1 filter
Follow up of GW170817 and its electromagnetic counterpart by Australian-led observing programs
I. Andreoni, K. Ackley, J. Cooke +122
The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era…
Quark-Noave in binaries: Observational signatures and implications to astrophysics
Rachid Ouyed, Denis Leahy, Nico Koning +1
The explosive transition of a massive neutron star to a quark star (the Quark-Nova, QN) releases in excess of ~ 10^52 erg in kinetic energy which can drastically impact the surroun…
The puzzling early detection of low velocity 56Ni decay lines in SN 2014J: Hints of a compact remnant
Rachid Ouyed, Denis Leahy, Nico Koning +1
We show that the low-velocity 56Ni decay lines detected earlier than expected in the type Ia SN 2014J find an explanation in the Quark-Nova Ia model which involves the thermonuclea…
Quark-Novae Ia in the Hubble diagram: Implications For Dark Energy
Rachid Ouyed, Nico Koning, Denis Leahy +2
The accelerated expansion of the Universe was proposed through the use of Type-Ia SNe as standard candles. The standardization depends on an empirical correlation between the stret…
Quark-Novae in Neutron Star-White-Dwarf Binaries: A model for luminous (spin-down powered) sub-Chandrasekhar-mass Type Ia Supernovae ?
Rachid Ouyed, Jan E. Staff
We show that appealing to a Quark-Nova (QN) in a tight binary system containing a massive neutron star and a CO white dwarf (WD), a Type Ia explosion could occur. The QN ejecta col…
Quark-Novae in Low-mass X-ray Binaries II: Application to G87-7 and to GRB 110328A
Rachid Ouyed, Jan E. Staff, Prashanth Jaikumar
We propose a simple model explaining two outstanding astrophysical problems related to compact objects: (1) that of stars such as G87-7 (alias EG 50) that constitute a class of rel…