SciPost Submission Page
Quark formation and phenomenology in binary neutron-star mergers using V-QCD
by Samuel Tootle, Christian Ecker, Konrad Topolski, Tuna Demircik, Matti Järvinen, Luciano Rezzolla
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Samuel Tootle |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202208_00023v1 (pdf) |
| Date accepted: | 2022-09-01 |
| Date submitted: | 2022-08-11 17:58 |
| Submitted by: | Tootle, Samuel |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
|
| Approaches: | Theoretical, Computational |
Abstract
Using full 3+1 dimensional general-relativistic hydrodynamic simulations of equal- and unequal-mass neutron-star binaries with properties that are consistent with those inferred from the inspiral of GW170817, we perform a detailed study of the quark-formation processes that could take place after merger. We use three equations of state consistent with current pulsar observations derived from a novel finite-temperature framework based on V-QCD, a non-perturbative gauge/gravity model for Quantum Chromodynamics. In this way, we identify three different post-merger stages at which mixed baryonic and quark matter, as well as pure quark matter, are generated. A phase transition triggered collapse already $\lesssim 10\,\rm{ms}$ after the merger reveals that the softest version of our equations of state is actually inconsistent with the expected second-long post-merger lifetime of GW170817. Our results underline the impact that multi-messenger observations of binary neutron-star mergers can have in constraining the equation of state of nuclear matter, especially in its most extreme regimes.
Author comments upon resubmission
List of changes
- Revised conclusion to address citations to previous works.
- Revised conclusion to address future work focusing on the distribution and convergence of quark matter formation in BNS mergers.
- Updated caption for Fig. 4
Published as SciPost Phys. 13, 109 (2022)
Reports on this Submission
Report #1 by Ronnie Rodgers (Referee 1) on 2022-8-12 (Invited Report)
- Cite as: Ronnie Rodgers, Report on arXiv:scipost_202208_00023v1, delivered 2022-08-12, doi: 10.21468/SciPost.Report.5527
Report
The authors have adequately addressed my questions. I think perhaps I was unclear in my requested change. The issue is not which observable corresponds to which symbol; this is clear from the legend of the plot. I meant that it would be helpful for the authors to explain in the text what they mean by plotting (for example) maximum temperature on temperature vs baryon number axes. However, this is only a very minor issue and I am happy to recommend publication of the article in its current form.