Equation of State Constraints from the Threshold Binary Mass for Prompt Collapse of Neutron Star Mergers
Abstract
Using hydrodynamical simulations for a large set of high-density matter equations of state (EOSs), we systematically determine the threshold mass M_(thres) for prompt black-hole formation in equal-mass and asymmetric neutron star (NS) mergers. We devise the so far most direct, general, and accurate method to determine the unknown maximum mass of nonrotating NSs from merger observations revealing M_(thres). Considering hybrid EOSs with hadron-quark phase transition, we identify a new, observable signature of quark matter in NS mergers. Furthermore, our findings have direct applications in gravitational wave searches, kilonova interpretations, and multimessenger constraints on NS properties.
Additional Information
© 2020 American Physical Society. Received 1 April 2020; revised 15 May 2020; accepted 25 August 2020; published 30 September 2020. We thank G. Martinez-Pinedo and H.-T. Janka for helpful discussions. We thank C. Constantinou, M. Prakash, A. Schneider, and J. Smith for help with their EOS tables. A. B. acknowledges support by the European Research Council under the European Union's Horizon 2020 research and innovation programme under Grant No. 759253. A. B. and S. B. acknowledge support by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)-Project-ID 279384907-SFB 1245. A. B. and V. V. acknowledge support by DFG-Project-ID 138713538-SFB 881 ("The Milky Way System," subproject A10). D. B. B. and T. F. acknowledge support from the Polish National Science Center (NCN) under Grant No. 2019/33/B/ST9/03059. T. F. acknowledges support from NCN under Grant No. UMO-2016/23/B/ST2/00720. N.-U. F. B. acknowledges support from NCN under Grant No. 2019/32/C/ST2/00556. N. S. is supported by the ARIS facility of GRNET in Athens (SIMGRAV, SIMDIFF, and BNSMERGE allocations) and the "Aristoteles Cluster" at AUTh, as well as by the COST actions CA16214 "PHAROS," CA16104 "GWVerse," CA17137 "G2Net," and CA18108 "QG-MM."Attached Files
Published - PhysRevLett.125.141103.pdf
Submitted - 2004.00846.pdf
Supplemental Material - supp.pdf
Files
Additional details
- Eprint ID
- 104636
- Resolver ID
- CaltechAUTHORS:20200729-102150773
- 759253
- European Research Council (ERC)
- 279384907
- Deutsche Forschungsgemeinschaft (DFG)
- SFB 1245
- Deutsche Forschungsgemeinschaft (DFG)
- 138713538
- Deutsche Forschungsgemeinschaft (DFG)
- SFB 881
- Deutsche Forschungsgemeinschaft (DFG)
- 2019/33/B/ST9/03059
- National Science Centre (Poland)
- UMO-2016/23/B/ST2/00720
- National Science Centre (Poland)
- 2019/32/C/ST2/00556
- National Science Centre (Poland)
- National Infrastructures for Research and Technology (GRNET)
- CA16214
- European Cooperation in Science and Technology (COST)
- CA16104
- European Cooperation in Science and Technology (COST)
- CA17137
- European Cooperation in Science and Technology (COST)
- CA18108
- European Cooperation in Science and Technology (COST)
- Created
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2020-07-29Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field