Can Kilonova Light curves be Standardized?

Abstract

Binary neutron star mergers have been recently confirmed to be the progenitors of the optical transients kilonovae (KNe). KNe are powered by the radioactive decay of neutron-rich elements (r-process elements) which are believed to be the product of disruption of neutron stars during their merger. KNe exhibit interesting parallels with type Ia supernovae (SNe), whose light curves show specific correlations which allow them to be used as standardizable candles. In this paper, we investigate the possibility of the KN light curves exhibiting similar correlations. While a satisfactory answer to this question can only be provided by future KN observations, employing theoretical models we explore whether there is any ground for harboring such expectations. Using semi-analytic models of KN light curves in conjunction with results from numerical relativity simulations of binary neutron star mergers, we obtain the maximum bolometric luminosity ($L_{\mathrm{Bol}}^{\max }$) and decline in luminosity ($\Delta L_{\mathrm{Bol}}$) for a simulated population of mergers. We find that theoretical light curves of KNe show remarkable correlations despite the complex physics governing their behavior. This presents a possibility of future observations to uncover such correlations in the observed light curves, eventually allowing observers to standardize these light curves and to use them for local distance measurements.

arXiv comment3 pages; 3 figures; presented in GR22, Valencia

References in corpus (38)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
• Transient Events from Neutron Star Mergers
• Constraining neutron star tidal Love numbers with gravitational wave detectors
• Origin of the heavy elements in binary neutron-star mergers from a gravitational wave event
• Electromagnetic Counterparts of Compact Object Mergers Powered by the Radioactive Decay of R-process Nuclei
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. II. UV, Optical, and Near-IR Light Curves and Comparison to Kilonova Models
• Observational clues to the progenitors of Type-Ia supernovae
• Composition and thermodynamics of nuclear matter with light clusters
• Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
• The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars
• Statistical Model for a Complete Supernova Equation of State
• Tests of General Relativity with GW170817
• On the astrophysical robustness of neutron star merger r-process
• Effect of a High Opacity on the Light Curves of Radioactively Powered Transients from Compact Object Mergers
• The Combined Ultraviolet, Optical, and Near-Infrared Light Curves of the Kilonova Associated with the Binary Neutron Star Merger GW170817: Unified Data Set, Analytic Models, and Physical Implications
• Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts and Nucleosynthesis
• Kilonovae
• Population synthesis for double white dwarfs I.Close detached systems
• Radioactivity and thermalization in the ejecta of compact object mergers and their impact on kilonova light curves
• Kilonova from post-merger ejecta as an optical and near-infrared counterpart of GW170817
• Rates and Delay Times of Type Ia Supernovae
• Generalized Semi-Analytical Models of Supernova Light Curves
• Binary Neutron Star Mergers
• Merger and Mass Ejection of Neutron-Star Binaries
• The Risetime of Nearby Type Ia Supernovae
• Signatures of hypermassive neutron star lifetimes on r-process nucleosynthesis in the disk ejecta from neutron star mergers
• Full Transport Model of GW170817-Like Disk Produces a Blue Kilonova
• Multi-messenger picture of compact binary mergers
• Modeling dynamical ejecta from binary neutron star mergers and implications for electromagnetic counterparts
• Limits on the number of spacetime dimensions from GW170817
• Radioactive decay products in neutron star merger ejecta: heating efficiency and $\gamma$-ray emission
• Optical Follow-up of Gravitational-wave Events with Las Cumbres Observatory
• Kilonova/Macronova Emission from Compact Binary Mergers
• Spiral Disk Instability Can Drive Thermonuclear Explosions in Binary White Dwarf Mergers
• An empirical limit on the kilonova rate from the DLT40 one day cadence Supernova Survey

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