University of Hertfordshire

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From the same journal

By the same authors

The LOFAR Two-metre Sky Survey - II. First data release

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The LOFAR Two-metre Sky Survey - II. First data release. / Shimwell, T. W.; Tasse, C.; Hardcastle, M. J.; Mechev, A. P.; Williams, W. L.; Best, P. N.; Röttgering, H. J. A.; Callingham, J. R.; Dijkema, T. J.; Gasperin, F. de; Hoang, D. N.; Hugo, B.; Mirmont, M.; Oonk, J. B. R.; Prandoni, I.; Rafferty, D.; Sabater, J.; Smirnov, O.; Weeren, R. J. van; White, G. J.; Atemkeng, M.; Bester, L.; Bonnassieux, E.; Brüggen, M.; Brunetti, G.; Chyży, K. T.; Cochrane, R.; Conway, J. E.; Croston, J. H.; Danezi, A.; Duncan, K.; Haverkorn, M.; Heald, G. H.; Iacobelli, M.; Intema, H. T.; Jackson, N.; Jamrozy, M.; Jarvis, M. J.; Lakhoo, R.; Mevius, M.; Miley, G. K.; Morabito, L.; Morganti, R.; Nisbet, D.; Orrú, E.; Smith, D. J. B.; Harwood, J. J.; Heesen, V.; Mahatma, V.; Mingo, B.

In: Astronomy & Astrophysics, 12.09.2018, p. 1-22.

Research output: Contribution to journalArticle

Harvard

Shimwell, TW, Tasse, C, Hardcastle, MJ, Mechev, AP, Williams, WL, Best, PN, Röttgering, HJA, Callingham, JR, Dijkema, TJ, Gasperin, FD, Hoang, DN, Hugo, B, Mirmont, M, Oonk, JBR, Prandoni, I, Rafferty, D, Sabater, J, Smirnov, O, Weeren, RJV, White, GJ, Atemkeng, M, Bester, L, Bonnassieux, E, Brüggen, M, Brunetti, G, Chyży, KT, Cochrane, R, Conway, JE, Croston, JH, Danezi, A, Duncan, K, Haverkorn, M, Heald, GH, Iacobelli, M, Intema, HT, Jackson, N, Jamrozy, M, Jarvis, MJ, Lakhoo, R, Mevius, M, Miley, GK, Morabito, L, Morganti, R, Nisbet, D, Orrú, E, Smith, DJB, Harwood, JJ, Heesen, V, Mahatma, V & Mingo, B 2018, 'The LOFAR Two-metre Sky Survey - II. First data release', Astronomy & Astrophysics, pp. 1-22. https://doi.org/10.1051/0004-6361/201833559

APA

Shimwell, T. W., Tasse, C., Hardcastle, M. J., Mechev, A. P., Williams, W. L., Best, P. N., ... Mingo, B. (2018). The LOFAR Two-metre Sky Survey - II. First data release. Astronomy & Astrophysics, 1-22. https://doi.org/10.1051/0004-6361/201833559

Vancouver

Author

Shimwell, T. W. ; Tasse, C. ; Hardcastle, M. J. ; Mechev, A. P. ; Williams, W. L. ; Best, P. N. ; Röttgering, H. J. A. ; Callingham, J. R. ; Dijkema, T. J. ; Gasperin, F. de ; Hoang, D. N. ; Hugo, B. ; Mirmont, M. ; Oonk, J. B. R. ; Prandoni, I. ; Rafferty, D. ; Sabater, J. ; Smirnov, O. ; Weeren, R. J. van ; White, G. J. ; Atemkeng, M. ; Bester, L. ; Bonnassieux, E. ; Brüggen, M. ; Brunetti, G. ; Chyży, K. T. ; Cochrane, R. ; Conway, J. E. ; Croston, J. H. ; Danezi, A. ; Duncan, K. ; Haverkorn, M. ; Heald, G. H. ; Iacobelli, M. ; Intema, H. T. ; Jackson, N. ; Jamrozy, M. ; Jarvis, M. J. ; Lakhoo, R. ; Mevius, M. ; Miley, G. K. ; Morabito, L. ; Morganti, R. ; Nisbet, D. ; Orrú, E. ; Smith, D. J. B. ; Harwood, J. J. ; Heesen, V. ; Mahatma, V. ; Mingo, B. / The LOFAR Two-metre Sky Survey - II. First data release. In: Astronomy & Astrophysics. 2018 ; pp. 1-22.

Bibtex

@article{c42043e2a6db49cd9e871015b315c0d7,
title = "The LOFAR Two-metre Sky Survey - II. First data release",
abstract = "The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120-168MHz survey of the entire northern sky for which observations are now 20{\%} complete. We present our first full-quality public data release. For this data release 424 square degrees, or 2{\%} of the eventual coverage, in the region of the HETDEX Spring Field (right ascension 10h45m00s to 15h30m00s and declination 45$^\circ$00$'$00$''$ to 57$^\circ$00$'$00$''$) were mapped using a fully automated direction-dependent calibration and imaging pipeline that we developed. A total of 325,694 sources are detected with a signal of at least five times the noise, and the source density is a factor of $\sim 10$ higher than the most sensitive existing very wide-area radio-continuum surveys. The median sensitivity is S$_{\rm 144 MHz} = 71\,\mu$Jy beam$^{-1}$ and the point-source completeness is 90{\%} at an integrated flux density of 0.45mJy. The resolution of the images is 6$''$ and the positional accuracy is within 0.2$''$. This data release consists of a catalogue containing location, flux, and shape estimates together with 58 mosaic images that cover the catalogued area. In this paper we provide an overview of the data release with a focus on the processing of the LOFAR data and the characteristics of the resulting images. In two accompanying papers we provide the radio source associations and deblending and, where possible, the optical identifications of the radio sources together with the photometric redshifts and properties of the host galaxies. These data release papers are published together with a further $\sim$20 articles that highlight the scientific potential of LoTSS.",
keywords = "astro-ph.GA, astro-ph.CO, astro-ph.HE, astro-ph.IM",
author = "Shimwell, {T. W.} and C. Tasse and Hardcastle, {M. J.} and Mechev, {A. P.} and Williams, {W. L.} and Best, {P. N.} and R{\"o}ttgering, {H. J. A.} and Callingham, {J. R.} and Dijkema, {T. J.} and Gasperin, {F. de} and Hoang, {D. N.} and B. Hugo and M. Mirmont and Oonk, {J. B. R.} and I. Prandoni and D. Rafferty and J. Sabater and O. Smirnov and Weeren, {R. J. van} and White, {G. J.} and M. Atemkeng and L. Bester and E. Bonnassieux and M. Br{\"u}ggen and G. Brunetti and Chyży, {K. T.} and R. Cochrane and Conway, {J. E.} and Croston, {J. H.} and A. Danezi and K. Duncan and M. Haverkorn and Heald, {G. H.} and M. Iacobelli and Intema, {H. T.} and N. Jackson and M. Jamrozy and Jarvis, {M. J.} and R. Lakhoo and M. Mevius and Miley, {G. K.} and L. Morabito and R. Morganti and D. Nisbet and E. Orr{\'u} and Smith, {D. J. B.} and Harwood, {J. J.} and V. Heesen and V. Mahatma and B. Mingo",
note = "16 figures, 1 table and 22 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.",
year = "2018",
month = "9",
day = "12",
doi = "10.1051/0004-6361/201833559",
language = "English",
pages = "1--22",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - The LOFAR Two-metre Sky Survey - II. First data release

AU - Shimwell, T. W.

AU - Tasse, C.

AU - Hardcastle, M. J.

AU - Mechev, A. P.

AU - Williams, W. L.

AU - Best, P. N.

AU - Röttgering, H. J. A.

AU - Callingham, J. R.

AU - Dijkema, T. J.

AU - Gasperin, F. de

AU - Hoang, D. N.

AU - Hugo, B.

AU - Mirmont, M.

AU - Oonk, J. B. R.

AU - Prandoni, I.

AU - Rafferty, D.

AU - Sabater, J.

AU - Smirnov, O.

AU - Weeren, R. J. van

AU - White, G. J.

AU - Atemkeng, M.

AU - Bester, L.

AU - Bonnassieux, E.

AU - Brüggen, M.

AU - Brunetti, G.

AU - Chyży, K. T.

AU - Cochrane, R.

AU - Conway, J. E.

AU - Croston, J. H.

AU - Danezi, A.

AU - Duncan, K.

AU - Haverkorn, M.

AU - Heald, G. H.

AU - Iacobelli, M.

AU - Intema, H. T.

AU - Jackson, N.

AU - Jamrozy, M.

AU - Jarvis, M. J.

AU - Lakhoo, R.

AU - Mevius, M.

AU - Miley, G. K.

AU - Morabito, L.

AU - Morganti, R.

AU - Nisbet, D.

AU - Orrú, E.

AU - Smith, D. J. B.

AU - Harwood, J. J.

AU - Heesen, V.

AU - Mahatma, V.

AU - Mingo, B.

N1 - 16 figures, 1 table and 22 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.

PY - 2018/9/12

Y1 - 2018/9/12

N2 - The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120-168MHz survey of the entire northern sky for which observations are now 20% complete. We present our first full-quality public data release. For this data release 424 square degrees, or 2% of the eventual coverage, in the region of the HETDEX Spring Field (right ascension 10h45m00s to 15h30m00s and declination 45$^\circ$00$'$00$''$ to 57$^\circ$00$'$00$''$) were mapped using a fully automated direction-dependent calibration and imaging pipeline that we developed. A total of 325,694 sources are detected with a signal of at least five times the noise, and the source density is a factor of $\sim 10$ higher than the most sensitive existing very wide-area radio-continuum surveys. The median sensitivity is S$_{\rm 144 MHz} = 71\,\mu$Jy beam$^{-1}$ and the point-source completeness is 90% at an integrated flux density of 0.45mJy. The resolution of the images is 6$''$ and the positional accuracy is within 0.2$''$. This data release consists of a catalogue containing location, flux, and shape estimates together with 58 mosaic images that cover the catalogued area. In this paper we provide an overview of the data release with a focus on the processing of the LOFAR data and the characteristics of the resulting images. In two accompanying papers we provide the radio source associations and deblending and, where possible, the optical identifications of the radio sources together with the photometric redshifts and properties of the host galaxies. These data release papers are published together with a further $\sim$20 articles that highlight the scientific potential of LoTSS.

AB - The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive, high-resolution 120-168MHz survey of the entire northern sky for which observations are now 20% complete. We present our first full-quality public data release. For this data release 424 square degrees, or 2% of the eventual coverage, in the region of the HETDEX Spring Field (right ascension 10h45m00s to 15h30m00s and declination 45$^\circ$00$'$00$''$ to 57$^\circ$00$'$00$''$) were mapped using a fully automated direction-dependent calibration and imaging pipeline that we developed. A total of 325,694 sources are detected with a signal of at least five times the noise, and the source density is a factor of $\sim 10$ higher than the most sensitive existing very wide-area radio-continuum surveys. The median sensitivity is S$_{\rm 144 MHz} = 71\,\mu$Jy beam$^{-1}$ and the point-source completeness is 90% at an integrated flux density of 0.45mJy. The resolution of the images is 6$''$ and the positional accuracy is within 0.2$''$. This data release consists of a catalogue containing location, flux, and shape estimates together with 58 mosaic images that cover the catalogued area. In this paper we provide an overview of the data release with a focus on the processing of the LOFAR data and the characteristics of the resulting images. In two accompanying papers we provide the radio source associations and deblending and, where possible, the optical identifications of the radio sources together with the photometric redshifts and properties of the host galaxies. These data release papers are published together with a further $\sim$20 articles that highlight the scientific potential of LoTSS.

KW - astro-ph.GA

KW - astro-ph.CO

KW - astro-ph.HE

KW - astro-ph.IM

U2 - 10.1051/0004-6361/201833559

DO - 10.1051/0004-6361/201833559

M3 - Article

SP - 1

EP - 22

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

ER -