LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars

H. R. Stacey; J. P. McKean; N. J. Jackson; P. N. Best; G. Calistro Rivera; J. R. Callingham; K. J. Duncan; G. Gürkan; M. J. Hardcastle; M. Iacobelli; A. P. Mechev; L. K. Morabito; I. Prandoni; H. J. A. Röttgering; J. Sabater; T. W. Shimwell; C. Tasse; W. L. Williams

doi:10.1051/0004-6361/201833967

LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars

H. R. Stacey, J. P. McKean, N. J. Jackson, P. N. Best, G. Calistro Rivera, J. R. Callingham, K. J. Duncan, G. Gürkan, M. J. Hardcastle, M. Iacobelli, A. P. Mechev, L. K. Morabito, I. Prandoni, H. J. A. Röttgering, J. Sabater, T. W. Shimwell, C. Tasse, W. L. Williams

Centre for Astrophysics Research (CAR)

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Abstract

Determining the star-forming properties of radio-quiet quasars is important for understanding the co-evolution of star formation and black hole accretion. Here, we present the detection of the gravitationally-lensed radio-quiet quasars SDSS J1055+4628, SDSS J1313+5151 and SBS 1520+530 at 144 MHz that 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 $\rm{M_{\odot}~yr^{-1}}$. 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.

Original language	English
Journal	Astronomy & Astrophysics
Early online date	19 Nov 2018
DOIs	https://doi.org/10.1051/0004-6361/201833967
Publication status	E-pub ahead of print - 19 Nov 2018

Keywords

astro-ph.GA

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10.1051/0004-6361/201833967Licence: Other

1811.07932v1
Reproduced with permission from Astronomy & Astrophysics. © 2019 ESO.
Accepted author manuscript, 445 KBLicence: Other

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Stacey, H. R., McKean, J. P., Jackson, N. J., Best, P. N., Rivera, G. C., Callingham, J. R., Duncan, K. J., Gürkan, G., Hardcastle, M. J., Iacobelli, M., Mechev, A. P., Morabito, L. K., Prandoni, I., Röttgering, H. J. A., Sabater, J., Shimwell, T. W., Tasse, C., & Williams, W. L. (2018). LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars. Astronomy & Astrophysics. Advance online publication. https://doi.org/10.1051/0004-6361/201833967

@article{e9ec176d77aa4cbd879eaa04e6d6eae7,

title = "LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars",

abstract = " Determining the star-forming properties of radio-quiet quasars is important for understanding the co-evolution of star formation and black hole accretion. Here, we present the detection of the gravitationally-lensed radio-quiet quasars SDSS J1055+4628, SDSS J1313+5151 and SBS 1520+530 at 144 MHz that 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 $\rm{M_{\odot}~yr^{-1}}$. 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. ",

keywords = "astro-ph.GA",

author = "Stacey, {H. R.} and McKean, {J. P.} and Jackson, {N. J.} and Best, {P. N.} and Rivera, {G. Calistro} and Callingham, {J. R.} and Duncan, {K. J.} and G. G{\"u}rkan and Hardcastle, {M. J.} and M. Iacobelli and Mechev, {A. P.} and Morabito, {L. K.} and I. Prandoni and R{\"o}ttgering, {H. J. A.} and J. Sabater and Shimwell, {T. W.} and C. Tasse and Williams, {W. L.}",

note = "7 figures, 2 tables and 10 pages. This paper is part of the LOFAR surveys data release 1 and has been accepted for publication in a special edition of A&A that will appear in Feb 2019, volume 622. The catalogues and images from the data release will be publicly available on lofar-surveys.org upon publication of the journal. Reproduced with permission from Astronomy & Astrophysics. {\textcopyright} 2019 ESO.",

year = "2018",

month = nov,

day = "19",

doi = "10.1051/0004-6361/201833967",

language = "English",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Stacey, HR, McKean, JP, Jackson, NJ, Best, PN, Rivera, GC, Callingham, JR, Duncan, KJ, Gürkan, G, Hardcastle, MJ, Iacobelli, M, Mechev, AP, Morabito, LK, Prandoni, I, Röttgering, HJA, Sabater, J, Shimwell, TW, Tasse, C & Williams, WL 2018, 'LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars', Astronomy & Astrophysics. https://doi.org/10.1051/0004-6361/201833967

TY - JOUR

T1 - LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars

AU - Stacey, H. R.

AU - McKean, J. P.

AU - Jackson, N. J.

AU - Best, P. N.

AU - Rivera, G. Calistro

AU - Callingham, J. R.

AU - Duncan, K. J.

AU - Gürkan, G.

AU - Hardcastle, M. J.

AU - Iacobelli, M.

AU - Mechev, A. P.

AU - Morabito, L. K.

AU - Prandoni, I.

AU - Röttgering, H. J. A.

AU - Sabater, J.

AU - Shimwell, T. W.

AU - Tasse, C.

AU - Williams, W. L.

N1 - 7 figures, 2 tables and 10 pages. This paper is part of the LOFAR surveys data release 1 and has been accepted for publication in a special edition of A&A that will appear in Feb 2019, volume 622. The catalogues and images from the data release will be publicly available on lofar-surveys.org upon publication of the journal. Reproduced with permission from Astronomy & Astrophysics. © 2019 ESO.

PY - 2018/11/19

Y1 - 2018/11/19

N2 - Determining the star-forming properties of radio-quiet quasars is important for understanding the co-evolution of star formation and black hole accretion. Here, we present the detection of the gravitationally-lensed radio-quiet quasars SDSS J1055+4628, SDSS J1313+5151 and SBS 1520+530 at 144 MHz that 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 $\rm{M_{\odot}~yr^{-1}}$. 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.

AB - Determining the star-forming properties of radio-quiet quasars is important for understanding the co-evolution of star formation and black hole accretion. Here, we present the detection of the gravitationally-lensed radio-quiet quasars SDSS J1055+4628, SDSS J1313+5151 and SBS 1520+530 at 144 MHz that 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 $\rm{M_{\odot}~yr^{-1}}$. 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.

KW - astro-ph.GA

U2 - 10.1051/0004-6361/201833967

DO - 10.1051/0004-6361/201833967

M3 - Article

SN - 0004-6361

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

ER -

LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally-lensed radio-quiet quasars

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