Gaia GraL: Gaia DR2 gravitational lens systems -VIII. A radio census of lensed systems

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Dougal Dobie - , Swinburne University of Technology, ARC Centre of Excellence for Gravitational Wave Discovery (Autor:in)
  • Dominique Sluse - , University of Liege (Autor:in)
  • Adam Deller - , Swinburne University of Technology, ARC Centre of Excellence for Gravitational Wave Discovery (Autor:in)
  • Tara Murphy - , ARC Centre of Excellence for Gravitational Wave Discovery, University of Sydney (Autor:in)
  • Alberto Krone-Martin - , University of California at Irvine, Universidade de Lisboa (Autor:in)
  • Daniel Stern - , California Institute of Technology (Autor:in)
  • Ziteng Wang - , ARC Centre of Excellence for Gravitational Wave Discovery, University of Sydney (Autor:in)
  • Yuanming Wang - , Swinburne University of Technology, ARC Centre of Excellence for Gravitational Wave Discovery (Autor:in)
  • Céline Boehm - , University of Sydney (Autor:in)
  • S. G. Djorgovski - , California Institute of Technology (Autor:in)
  • Laurent Galluccio - , Observatoire de la Cote d'Azur (Autor:in)
  • Ludovic Delchambre - , University of Liege (Autor:in)
  • Thomas Connor - , California Institute of Technology, Harvard University (Autor:in)
  • Jakob Sebastiaan Den Brok - , Harvard University (Autor:in)
  • Pedro H. Do Vale Cunha - , University of São Paulo (Autor:in)
  • Christine Ducourant - , Université de Bordeaux (Autor:in)
  • Matthew J. Graham - , California Institute of Technology (Autor:in)
  • Priyanka Jalan - , Polish Academy of Sciences (Autor:in)
  • Sergei A. Klioner - , Arbeitsgruppe Astronomie, Technische Universität Dresden (Autor:in)
  • Jonas Klüter - , Louisiana State University (Autor:in)
  • François Mignard - , Observatoire de la Cote d'Azur (Autor:in)
  • Vibhore Negi - , Aryabhatta Research Institute of Observational Sciences (Autor:in)
  • Quentin Petit - , Université de Bordeaux (Autor:in)
  • Sergio Scarano - , Universidade Federal de Sergipe (Autor:in)
  • Eric Slezak - , Observatoire de la Cote d'Azur (Autor:in)
  • Jean Surdej - , University of Liege (Autor:in)
  • Ramachrisna Teixeira - , University of São Paulo (Autor:in)
  • Dominic J. Walton - , University of Hertfordshire (Autor:in)
  • Joachim Wambsganss - , Universität Heidelberg (Autor:in)

Abstract

We present radio observations of 24 confirmed and candidate strongly lensed quasars identified by the Gaia Gravitational Lenses working group. We detect radio emission from eight systems in 5.5 and 9 GHz observations with the Australia Telescope Compact Array (ATCA), and 12 systems in 6 GHz observations with the Karl G. Jansky Very Large Array (VLA). The resolution of our ATCA observations is insufficient to resolve the radio emission into multiple lensed images, but we do detect multiple images from 11 VLA targets. We have analysed these systems using our observations in conjunction with existing optical measurements, including measuring offsets between the radio and optical positions for each image and building updated lens models. These observations significantly expand the existing sample of lensed radio quasars, suggest that most lensed systems are detectable at radio wavelengths with targeted observations, and demonstrate the feasibility of population studies with high-resolution radio imaging.

Details

OriginalspracheEnglisch
Seiten (von - bis)5880-5889
Seitenumfang10
FachzeitschriftMonthly Notices of the Royal Astronomical Society
Jahrgang528
Ausgabenummer4
PublikationsstatusVeröffentlicht - 1 März 2024
Peer-Review-StatusJa

Externe IDs

Mendeley 0063c541-7977-335e-bcde-e80b0137d4fb
ORCID /0000-0003-4682-7831/work/168206667

Schlagworte

Schlagwörter

  • gravitational lensing: strong, radio continuum: general