A Population Study on the Radio Emission of Fast Blue Optical Transients

Abstract

Despite the fact that the progenitor of fast blue optical transients (FBOTs) is still up for debate, FBOTs are sometimes suggested to originate from the core-collapse of ultra-stripped stars and be powered by a spinning-down neutron star. Following this consideration, it is expected that the late-time evolution of the progenitor stars can leave important imprints in the circumstellar material (CSM) of the FBOTs, due to the strong mass loss of the stars. The interaction of the FBOT ejecta with the CSM can drive a long-lasting shock to generate radio emission, which thus enables us to probe the CSM properties through radio observation although such observations are still rare. Within the framework of the magnetar-powered model, Liu et al.(2022) fitted the multi-band optical light curves of 40 FBOTs and, hence, the statistical distributions of the FBOT magnetar and ejecta parameters were obtained. Based on these FBOT population results, we investigate the dependence of the radio emission on the mass-loss rate of the progenitors and evaluate the detectability of radio emission from FBOTs with current and future telescopes. It is found that the distribution of the peak time and peak luminosity of the emission at 8.4 GHz are primarily in the regions of $t_{\mathrm{peak},\nu }=10^{2.12\pm 0.63}$ days and $L_{\mathrm{peak},\nu }=10^{28.73\pm 0.83}$ erg s${}^{-1}$ Hz${}^{-1}$, respectively. A joint detection of the Zwicky Transient Facility and Very Large Array could achieve success in about 8.7% FBOTs of $z\le 1$. Furthermore, if considering a joint observation of the Chinese Space Station Telescope and Square Kilometer Array, this fraction can be increased to about 23.9%.

10 pages, 5 figures, submitted to ApJ

References in corpus (29)

• Formation of Double Neutron Star Systems
• X-Ray Flares from Postmerger Millisecond Pulsars
• Rapidly-Evolving and Luminous Transients from Pan-STARRS1
• Circumstellar Emission from Type Ib and Ic Supernovae
• The Koala: A Fast Blue Optical Transient with Luminous Radio Emission from a Starburst Dwarf Galaxy at $z=0.27$
• The spins of compact objects born from helium stars in binary systems
• The Radio Luminosity-Risetime Function of Core-Collapse Supernovae
• The role of newly born magnetars in gamma-ray burst X-ray afterglow emission: Energy injection and internal emission
• Radio and X-ray observations of the luminous Fast Blue Optical Transient AT2020xnd
• Neutron Star Mergers in AGN Accretion Disks: Cocoon and Ejecta Shock Breakouts
• Luminous Millimeter, Radio, and X-ray Emission from ZTF20acigmel (AT2020xnd)
• Rapidly Evolving and Luminous Transients Driven by Newly Born Neutron Stars
• Circumstellar Interaction Powers the Light Curves of Luminous Rapidly Evolving Optical Transients
• Black hole hyperaccretion inflow-outflow model. I. long and ultra-long gamma-ray bursts
• Shocked jets in CCSNe can power the zoo of fast blue optical transients
• Extreme mass loss in low-mass type Ib/c supernova progenitors
• A Monte Carlo Approach to Magnetar-powered Transients: I. Hydrogen-deficient Superluminous Supernovae
• Thermal Electrons in Mildly-relativistic Synchrotron Blast-waves
• The Peculiar Transient AT2018cow: A Possible Origin of A Type Ibn/IIn Supernova
• The Host Galaxies of Rapidly Evolving Transients in the Dark Energy Survey
• Thermonuclear Explosions and Accretion-induced Collapses of White Dwarfs in Active Galactic Nucleus Accretion Disks
• The nearby luminous transient AT2018cow: a magnetar formed in a sub-relativistically expanding non-jetted explosion
• A common envelope jets supernova (CEJSN) impostor scenario for fast blue optical transients
• Magnetar Engines in Fast Blue Optical Transients and Their Connections with SLSNe, SNe Ic-BL, and lGRBs
• X-ray transients from the accretion-induced collapse of white dwarfs
• On the energy source of ultra-stripped supernovae
• Fast and Luminous Transients from the Explosions of Long Lived Massive White Dwarf Merger Remnants
• The effects of a magnetar engine on the gamma-ray burst-associated supernovae: Application to double-peaked SN 2006aj
• Models of Millimeter and Radio Emission from Interacting Supernovae

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