期刊
ASTRONOMY & ASTROPHYSICS
卷 622, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201833967
关键词
gravitational lensing: strong; radio continuum: galaxies; galaxies: high-redshift; quasars: general; galaxies: evolution; galaxies: star formation
资金
- UK STFC [ST/M001229/1]
- ERC [NewClusters 321271]
- CSIRO OCE Postdoctoral Fellowship
- UK Science and Technology Facilities Council (STFC) [ST/M001008/1]
- NWO/DOME/IBM [628.002.001]
- Oxford Hintze Centre for Astrophysical Surveys through Hintze Family Charitable Foundation
- John Fell Oxford University Press (OUP) Research Fund
- INAF under PRIN SKA/CTA FORECaST
- CNRS-INSU, France
- Observatoire de Paris, France
- Universite d'Orleans, France
- BMBF, Germany
- MIWF-NRW, Germany
- MPG, Germany
- Department of Business, Enterprise and Innovation (DBEI), Ireland
- NWO, The Netherlands
- Science and Technology Facilities Council (STFC), UK
- SURF Cooperative through grant e-infra [160022, 160152]
- STFC [ST/P000096/1]
- STFC [ST/P000096/1, ST/M001008/1, ST/R000972/1] Funding Source: UKRI
Determining the star-forming properties of radio-quiet quasars is important for understanding the co-evolution of star formation and black hole accretion. We present the detection of the gravitationally lensed radio-quiet quasars SDSS J1055+4628, SDSS J1313+5151, and SBS 1520+530 at 144 MHz, which fall in the HETDEX Spring Field targeted in the LOFAR Two-metre Sky Survey (LoTSS) first full data release. We compare their radio and far-infrared luminosities relative to the radio infrared correlation and find that their radio luminosities can be explained by star formation. The implied star formation rates derived from their radio and infrared luminosities are between 20 and 300 M-circle dot yr(-1). These detections represent the first study of gravitationally lensed sources with LOFAR, opening a new frequency window for investigating the star-forming properties of high-redshift quasars at radio wavelengths. We consider the implications for future data releases and estimate that many of the objects in our parent sample will be detected during LoTSS, significantly increasing the fraction of gravitationally lensed radio-quiet quasars with radio detections.
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