Annual NewCompStar Conference 2016

Session

Plenary Talk

25 Apr 2016, 09:00

Bogazici University-Rectorate Building (Istanbul)

0. Gravitational waves from isolated neutron stars

Ian Jones (University of Southampton)

25/04/2016, 09:10

Isolated neutron stars can emit gravitational waves via a variety of mechanisms. These emission channels are highly sensitive to the nature of matter in the star, and can potentially reveal information on the high density equation of state not accessible via other means. In this talk I will review these mechanisms, and discuss how they relate to the microphysics of the stellar matter. I will...

1. gravitational wave emission from isolated neutron stars and the dynamics of the associated unstable oscillation modes

Kostas Glampedakis

25/04/2016, 10:00

This talk will provide an update on gravitational wave emission from isolated neutron stars and on the dynamics of the associated unstable oscillation modes.

11. R process nucleosynthesis in supernovae and neutron star mergers

Friedrich Thielemann, Andreas Lohs (University of Basel)

26/04/2016, 09:10

12. Transport phenomena in neutron stars

Laura Tolos (University of Groningen)

26/04/2016, 10:00

49. Quark Deconfinement in the Context of the Millisecond Magnetar Model for GRBs

Dr Niccolo Bucciantini

26/04/2016, 11:20

The properties of late time activity in Long and Short GRBs, point strongly toward a long lived energy injection mechanism. The millisecond magnetar model provides naturally with such input in the form of a relativistic magnetically driven wind. The standard pictures however predicts a steady smooth injection, that looks at odds with the presence of late time bursts observed in the light-curve...

14. Probing neutron star properties with pulsar glitches

Prof. Pierre Pizzochero

26/04/2016, 12:10

The superfluid state of neutrons strongly affects the rotational properties of neutron stars, since their angular momentum is quantized in vortex lines whose interaction with the nuclear lattice in the crust can explain the rotational glitches observed in numerous pulsars. The study of those interactions at the microscopic level and their implementation in macroscopic and realistic models for...

23. Gravitational-wave signal from binary neutron stars: a systematic analysis of the spectral properties

Luciano Rezzolla (Institute for Theoretical Physics, Frankfurt, Germany)

27/04/2016, 09:10

24. "Topics in the Theory of Dense Matter: Progress and Challenges"

Prof. Chris Pethick (University of Illinois at Urbana-Champaign)

27/04/2016, 10:00

I shall discuss a number of subjects including the equation of state of uniform nucleonic matter, collective oscillations in the inner crust of neutron stars, the neutron superfluid density in the inner crust, elastic properties of the crust, induced interactions between nucleons and the transition to quark matter.

25. Neutron stars in alternative theories of gravity - models,astrophysical implications and universal relations

Dr Daniela Doneva

27/04/2016, 11:20

The talk is devoted on neutron stars in alternative theories of gravity: their structure, deviations from pure general relativity and astrophysical implications. Both static and rapidly rotating solutions are considered. A wide range of universal relations for neutron star and their generalization to alternative theories of gravity are also discussed. Among them are gravitational wave...

28. Neutron stars as the progenitors & central engines of GRBs

Dr Antonia Rowlinson

28/04/2016, 09:10

It has now been shown that many short GRBs also have plateau phases which are comparable to those observed in long GRBs. However, this challenges the typical short GRB progenitor model (the merger of two neutron stars or a neutron star and a black hole) as all significant accretion onto the black hole is expected to occur during the prompt emission phase. The recent discovery of massive...

27. Inferring properties of the central engine of short GRBs

Paul Lasky

28/04/2016, 10:00

Isolated neutron stars are potentially excellent emitters of gravitational waves throughout many stages of their lives. I will review recent advances in our understanding of gravitational wave emission mechanisms from both young and old neutron stars. I will also discuss ongoing efforts to detect these gravitational waves with Advanced LIGO.

50. Do hyperons exist in the interior of neutron stars?

Dr Isaak Vidana

28/04/2016, 11:20

In this work I review the role of hyperons on the properties of neutron and proto-neutron stars. In particular, I revise the so-called ``hyperon puzzle", go over some of the solutions proposed to tackle it, and discuss the implications that the recent measurements of unusually high neutron star masses have on our present knowledge of hypernuclear physics. I reexamine also the role of hyperons...

29. Interacting fermion star in Kaluza--Klein World, FRG Approach to Nuclear Matter in Extreme Conditions

Gergely Gabor Barnaföldi- Szilvia Karsai-Peter Posfay (Wigner RCP Hungarian Academy of Sciences (HU))

28/04/2016, 12:10

Recently we have explored the properties of an interacting fermionic compact star in a 1+4 dimensional Kaluza--Klein-like spacetime, where an extra microscopical spacelike dimension was introduced (See Sz. Karsai's talk). Here, we present wether we would able to measure the effect of these extra dimensions by gravitational wave detectors.

39. Observational constraints on the physical properties of neutron stars

Dr Bettina Posselt

29/04/2016, 09:10

40. Observational aspects of isolated neutron stars

Silvia Zane (university college London)

29/04/2016, 10:00

Multi-wavelength observations over the last decades proved the existence of observationally very diverse manifestations of isolated NSs (INSs) and led to the separation of INSs into distinct classes. Most of the ~2,300 known INSs are radio pulsars with periods P < 8 s and magnetic field B ~ 10 12 G, but there are objects with much greater potential for understanding the INSs diversity. This...

59. Nonlinear Superfluid Dynamics - Evidence in Pulsars

Prof. M. Ali Alpar (Istanbul University)

29/04/2016, 11:30

Plenary talk

Theoretical basis and observational evidence for nonlinear dynamics will be discussed.

41. Astrophysical constraints on the equation of state?

Dr Morgane Fortin

29/04/2016, 11:50

I will review several ongoing projects which aim at examining how astrophysical observations of neutron stars (mass, radius, spin frequency, thermal emission and evolution,...) may constrain the properties and composition of neutron star matter.