A search for supernova-like optical counterparts to ASKAP-localised Fast Radio Bursts
Lachlan Marnoch, Stuart D. Ryder, Keith W. Bannister, Shivani Bhandari, Cherie K. Day, Adam T. Deller, Jean-Pierre Macquart, Richard M. McDermid, J. Xavier Proc… 展开作者
Lachlan Marnoch, Stuart D. Ryder, Keith W. Bannister, Shivani Bhandari, Cherie K. Day, Adam T. Deller, Jean-Pierre Macquart, Richard M. McDermid, J. Xavier Prochaska, Hao Qiu, Elaine M. Sadler, Ryan M. Shannon, Nicolas Tejos
备注：
7 pages, 3 figures. Accepted to Astronomy & Astrophysics on 03 June 2020
Fast radio bursts (FRBs) are millisecond-scale radio pulses, which originate in distant galaxies and are produced by unknown sources. The mystery remains partially because of the typical difficulty in localising FRBs to host galaxies. Accurate localisations delivered by the Commensal Real-time ASKAP Fast Transients (CRAFT) survey now provide an opportunity to study the host galaxies and potential transient counterparts of FRBs at a large range of wavelengths. In this work, we investigate whether the first three FRBs accurately localised by CRAFT have supernova-like transient counterparts. We obtained two sets of imaging epochs with the Very Large Telescope for three host galaxies, one soon after the burst detection and one several months later. After subtracting these images no optical counterparts were identified in the associated FRB host galaxies, so we instead place limits on the brightness of any potential optical transients. A Monte Carlo approach, in which supernova light curves were modelled and their base properties randomised, was used to estimate the probability of a supernova associated with each FRB going undetected. We conclude that Type Ia and IIn supernovae are unlikely to accompany every apparently non-repeating FRB.
Combining high time and frequency resolution full-polarisation spectra of Fast Radio Bursts (FRBs) with knowledge of their host galaxy properties provides an opportunity to study both the emission mechanism generating them and the impact of their propagation through their local environment, host galaxy, and the intergalactic medium. The Australian Square Kilometre Array Pathfinder (ASKAP) telescope has provided the first ensemble of bursts with this information. In this paper, we present the high time and spectral resolution, full polarisation observations of five localised FRBs to complement …
The recent increase in well-localised fast radio bursts (FRBs) has facilitated in-depth studies of global FRB host properties, the source circumburst medium, and the potential impacts of these environments on the burst properties. The Australian Square Kilometre Array Pathfinder (ASKAP) has localised 11 FRBs with sub-arcsecond to arcsecond precision, leading to sub-galaxy localisation regions in some cases and those covering much of the host galaxy in others. The method used to astrometrically register the FRB image frame for ASKAP, in order to align it with images taken at other wavelengths, …
We present a new Australian Square Kilometre Array Pathfinder (ASKAP) sample of 14 radio Supernova Remnant (SNR) candidates in the Large Magellanic Cloud (LMC). This new sample is a significant increase to the known number of older, larger and low surface brightness LMC SNRs. We employ a multi-frequency search for each object and found possible traces of optical and occasionally X-ray emission in several of these 14 SNR candidates. One of these 14 SNR candidates (MCSNR J0522-6543) has multi-frequency properties that strongly indicate a bona fide SNR. We also investigate a sample of 20 previous…
A MeerKAT search for persistent radio sources towards twenty-five localised Fast Radio Bursts
North-West University（西北大学）；University of South Africa（南非大学）；University of Nigeria（尼日利亚大学）；National Institute for Theoretical and Computational Sciences (NITheCS)（国家理论与计算科学研究所）；South African Radio Astronomy Observatory（南非射电天文台）；Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, The University of Manchester（曼彻斯特大学物理与天文学系乔德雷克天体物理学中心）
The ASKAP Variables and Slow Transients (VAST) Extragalactic Survey - Data Release 1
The University of Sydney（悉尼大学）；University of Wisconsin-Milwaukee（威斯康星大学密尔沃基分校）；Australia Telescope National Facility, CSIRO Space and Astronomy（澳大利亚望远镜国家设施，CSIRO空间与天文学部）；University of North Carolina at Chapel Hill（北卡罗来纳大学教堂山分校）；The Hebrew University of Jerusalem（耶路撒冷希伯来大学）；University of Toronto（多伦多大学）
The Australian Square Kilometre Array Pathfinder (ASKAP) will give us an unprecedented opportunity to investigate the transient sky at radio wavelengths. In this paper we present VAST, an ASKAP survey for Variables and Slow Transients. VAST will exploit the wide-field survey capabilities of ASKAP to enable the discovery and investigation of variable and transient phenomena from the local to the cosmological, including flare stars, intermittent pulsars, X-ray binaries, magnetars, extreme scattering events, interstellar scintillation, radio supernovae and orphan afterglows of gamma ray bursts. I…
ASKAP Monitoring of the Rubin Deep Drilling Fields
University of Sydney（悉尼大学）；ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav)（引力波发现卓越研究中心）；University of North Carolina at Chapel Hill（北卡罗来纳大学教堂山分校）；The University of Melbourne（墨尔本大学）；Macquarie University（麦考瑞大学）
The Australian SKA Pathfinder (ASKAP) telescope has started to localize Fast Radio Bursts (FRBs) to arcsecond accuracy from the detection of a single pulse, allowing their host galaxies to be reliably identified. We discuss the global properties of the host galaxies of the first four FRBs localized by ASKAP, which lie in the redshift range $0.11<z<0.48$. All four are massive galaxies (log( $M_{*}/ M_{\odot}$) $\sim 9.4 -10.4$) with modest star-formation rates of up to $2M_{\odot}$yr$^{-1}$ -- very different to the host galaxy of the first repeating FRB 121102, which is a dwarf galaxy with a hi…
New generational very-high-energy telescope arrays have been detecting more than 120 TeV γ-ray sources. Multi-wavelength observations on these Gamma-ray sources have proven to be robust in shedding light on their nature. The coming radio telescope arrays like ASKAP and FAST may find more faint (extended) radio sources due to their better sensitivities and resolutions, might identify more previously un-identified γ-ray sources and set many new targets for future deep surveys by very-high-energy ground-based telescopes like LHAASO. We in the paper summarize a list of known Galactic γ-ray Superno…
Radio detection of supernova remnant G310.7-5.4 with $γ$-ray counterpart: Abeona SNR
Dublin Institute for Advanced Studies（都柏林高等研究院）；Western Sydney University（西悉尼大学）；University College Dublin（都柏林大学学院）；University of Alberta（阿尔伯塔大学）；CSIRO（联邦科学与工业研究组织）；Astronomical Observatory, Volgina 7, 11060 Belgrade（贝尔格莱德天文台）；National Research Council Canada（加拿大国家研究委员会）；University of Potsdam（波茨坦大学）
We present a search for radio afterglows from long gamma-ray bursts using the Australian Square Kilometre Array Pathfinder (ASKAP). Our search used the Rapid ASKAP Continuum Survey, covering the entire celestial sphere south of declination $+41^\circ$, and three epochs of the Variables and Slow Transients Pilot Survey (Phase 1), covering $\sim 5,000$ square degrees per epoch. The observations we used from these surveys spanned a nine-month period from 2019 April 21 to 2020 January 11. We crossmatched radio sources found in these surveys with 779 well-localised (to $\leq 15''$) long gamma-ray b…
SN 2007it on the RISE -- a radio detection of an interacting supernova 18 years post-explosion
FSLAC IRL 2009, CNRS/IAC（法国国家科学研究中心/加那利天体物理学研究所）；Western Sydney University（西悉尼大学）；Faculty of Engineering, Gifu University（岐阜大学工程学院）；Instutito de Astrofísica de Andalucía IAA-CSIC（安达卢西亚天体物理研究所）；Humboldt-Universität zu Berlin（柏林洪堡大学）；Institute of Physics and Astronomy, University of Potsdam（波茨坦大学物理与天文学研究所）；Astronomy & Astrophysics Section, School of Cosmic Physics, Dublin Institute for Advanced Studies, DIAS Dunsink Observatory（都柏林高等研究院宇宙物理学院天文学与天体物理系）；School of Physics, University College Dublin（都柏林大学学院物理学院）；CSIRO Space and Astronomy, Australia Telescope National Facility（澳大利亚联邦科学与工业研究组织空间与天文部澳大利亚望远镜国家设施）；Department of Physics & Astronomy, University of Utah（犹他大学物理与天文学系）
Fast radio burst (FRB) 191001 is localised at the spiral arm of a highly star-forming galaxy with an observed dispersion measure (DM) of 507 pc cm$^{-3}$. Subtracting the contributions of the intergalactic medium and our Milky Way Galaxy from the total DM, one gets an excess of around 200 pc cm$^{-3}$, which may have been contributed by the host galaxy of the FRB. It is found in this work that the position of FRB 191001 is consistent with the distribution of supernovae (SNe) in the spiral arm of their parent galaxies. If this event is indeed due to an SN explosion, then, from the analysis of t…
Fast radio bursts (FRBs) are bright, millisecond-duration radio pulses whose origins are unknown. To date, only one (FRB 121102) out of several dozen has been seen to repeat, though the extent to which it is exceptional remains unclear. We discuss detecting repetition from FRBs, which will be very important for understanding their physical origin, and which also allows for host galaxy localisation. We show how the combination of instrument sensitivity, beamshapes, and individual FRB luminosity functions affect the detection of sources whose repetition is not necessarily described by a homogene…
Deep radio characterization of the supernova remnant G343.1-00.7
INAF, Osservatorio Astrofisico di Catania（意大利国家天体物理研究所，卡塔尼亚天文台）；Department of Astronomy, Faculty of Mathematics, University of Belgrade（贝尔格莱德大学数学学院天文学系）；Department of Physics and Astronomy, University of Calgary（卡尔加里大学物理与天文学系）；Instituto de Astrofísica de Andalucía (IAA-CSIC)（安达卢西亚天体物理学研究所（西班牙高等科学研究委员会））；Astrophysics and Space Technologies Research Centre, Macquarie University（麦夸里大学天体物理学与空间技术研发中心）；INAF, Osservatorio Astronomico di Cagliari（意大利国家天体物理研究所，卡利亚里天文台）；Western Sydney University（西悉尼大学）；Australia Telescope National Facility, CSIRO（澳大利亚望远镜国家设施，CSIRO）；Astronomical Observatory, Volgina 7（伏尔吉纳街7号天文台）；SBASSE at Lahore University of Management Sciences, LUMS（拉合尔管理科学大学SBASSE）
ASKAP EMU detection of an Odd Radio Circle (ORC) candidate: J094412-751016 (Anglerfish)
Western Sydney University（西悉尼大学）；Dominion Radio Astrophysical Observatory, Herzberg Astronomy & Astrophysics, National Research Council Canada（加拿大国家研究委员会赫茨伯格天体与天体物理学部多米农射电天文台）；Mizusawa VLBI Observatory, National Astronomical Observatory Japan（日本国立天文台水泽VLBI观测站）；INAF-Osservatorio Astrofisico di Catania（意大利国家天体物理研究所卡塔尼亚天文台）；Australia Telescope National Facility, CSIRO（澳大利亚望远镜国家设施，CSIRO）；Department of Physics, University of Wisconsin-Madison（威斯康星大学麦迪逊分校物理系）
A newly born spider system at the core of a radio shell: Evidence for a low-energy supernova
Western Sydney University（西悉尼大学）；CSIRO（澳大利亚联邦科学与工业研究组织）；Astronomical Observatory（贝尔格莱德天文台）；University of Potsdam（波茨坦大学）；Dublin City University（都柏林城市大学）；Dublin Institute for Advanced Studies（都柏林高等研究院）；The George Washington University（乔治华盛顿大学）；Max-Planck-Institut für extraterrestrische Physik（马普地外物理研究所）
We report the discovery of J0624-6948, a low-surface brightness radio ring, lying between the Galactic Plane and the Large Magellanic Cloud (LMC). It was first detected at 888 MHz with the Australian Square Kilometre Array Pathfinder (ASKAP), and with a diameter of ~196 arcsec. This source has phenomenological similarities to Odd Radio Circles (ORCs). Significant differences to the known ORCs - a flatter radio spectral index, the lack of a prominent central galaxy as a possible host, and larger apparent size - suggest that J0624-6948 may be a different type of object. We argue that the most pl…
In this paper, we investigate the energy function, formation rate and environment of fast radio bursts (FRBs) using Parkes sample and Australian Square Kilometer Array Pathfinder (ASKAP) sample. For the first time, the metallicity effect on the formation rate is considered. If FRBs are produced by the mergers of compact binaries, the formation rate of FRBs should have a time delay relative to cosmic star formation rate (CSFR). We get the time delay is about 3-5 Gyr and the index of differential energy function $γ$ ($dN/dE\propto E^{-γ}$) is between 1.6 and 2.0 from redshift cumulative distribu…
Fast Radio Bursts in the Era of the Vera C. Rubin Observatory's Legacy Survey of Space and Time
International Centre for Radio Astronomy Research, Curtin University（国际无线电天文研究中心，科廷大学）；Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS)（南里奥格兰德联邦大学物理研究所）；Australia Telescope National Facility, CSIRO Space & Astronomy（澳大利亚望远镜国家设施，CSIRO空间与天文学部）；Sydney Institute for Astronomy, School of Physics, The University of Sydney（悉尼大学物理学院悉尼天体物理研究所）；Department of Physics, University of Washington（华盛顿大学物理系）；Centre for Astrophysics and Supercomputing, Swinburne University of Technology（斯威本科技大学天体物理学与超级计算中心）；Kavli IPMU (WPI), UTIAS, The University of Tokyo（东京大学宇宙起源研究核心理论中心（ Kavli IPMU））；School of Mathematical and Physical Sciences, Macquarie University（麦考瑞大学数理科学学院）；Department of Physics, University of Oxford（牛津大学物理系）
Dispersion measure (DM) of Fast Radio Bursts (FRBs) are commonly used as a indicator of distance assuming that DM in excess of the expected amount within the Milky Way in the direction of each FRB arise mostly from the inter-galactic medium. However, the assumption might not be true if, for example, most FRB progenitors are embedded in ionized circumstellar material (CSM, e.g. supernova remnant). In this study, we jointly analyze distributions of DM, flux density, and fluence of the FRB samples observed by the Parkes telescope and the Australian Square Kilometre Array Pathfinder (ASKAP) using …
FRB20250613A: a remarkable repeating FRB with apparent millisecond-timescale scattering variations
Swinburne University of Technology（斯威本科技大学）；Northwestern University（西北大学）；Curtin University（科廷大学）；The University of Sydney（悉尼大学）；University of Edinburgh（爱丁堡大学）
Recently born magnetars are promising candidates for the engines powering fast radio bursts (FRBs). The focus thus far has been placed on millisecond magnetars born in rare core-collapse explosions, motivated by the star forming dwarf host galaxy of the repeating FRB 121102, which is remarkably similar to the hosts of superluminous supernovae (SLSNe) and long gamma-ray bursts (LGRB). However, long-lived magnetars may also be created in binary neutron star (BNS) mergers, in the small subset of cases with a sufficiently low total mass for the remnant to avoid collapse to a black hole, or in the …
The impending era of wide-field radio surveys has the potential to revolutionize our understanding of astrophysical transients. Here we evaluate the prospects of a wide range of planned and hypothetical radio surveys using the properties and volumetric rates of known and hypothetical classes of extragalactic synchrotron radio transients (e.g., on- and off-axis gamma-ray bursts [GRB], supernovae, tidal disruption events [TDE], compact object mergers). Utilizing these sources and physically motivated considerations we assess the allowed phase-space of radio luminosity and peak timescale for extr…
