The LOFAR Multifrequency Snapshot Sky Survey (MSSS) I. Survey description and first results
Artikel i vetenskaplig tidskrift, 2015

We present the Multifrequency Snapshot Sky Survey (MSSS), the first northern-sky Low Frequency Array (LOFAR) imaging survey. In this introductory paper, we first describe in detail the motivation and design of the survey. Compared to previous radio surveys, MSSS is exceptional due to its intrinsic multifrequency nature providing information about the spectral properties of the detected sources over more than two octaves (from 30 to 160 MHz). The broadband frequency coverage, together with the fast survey speed generated by LOFAR's multibeaming capabilities, make MSSS the first survey of the sort anticipated to be carried out with the forthcoming Square Kilometre Array (SKA). Two of the sixteen frequency bands included in the survey were chosen to exactly overlap the frequency coverage of large-area Very Large Array (VLA) and Giant Metrewave Radio Telescope (GMRT) surveys at 74MHz and 151MHz respectively. The survey performance is illustrated within the MSSS Verification Field (MVF), a region of 100 square degrees centered at (alpha, delta)(J2000) = (15(h), 69 degrees). The MSSS results from the MVF are compared with previous radio survey catalogs. We assess the flux and astrometric uncertainties in the catalog, as well as the completeness and reliability considering our source finding strategy. We determine the 90% completeness levels within the MVF to be 100 mJy at 135 MHz with 108 '' resolution, and 550 mJy at 50 MHz with 166 '' resolution. Images and catalogs for the full survey, expected to contain 150 000-200 000 sources, will be released to a public web server. We outline the plans for the ongoing production of the final survey products, and the ultimate public release of images and source catalogs.

surveys

radio continuum: general

Författare

G. H. Heald

Rijksuniversiteit Groningen

Netherlands Institute for Radio Astronomy (ASTRON)

R. F. Pizzo

Netherlands Institute for Radio Astronomy (ASTRON)

E. Orru

Netherlands Institute for Radio Astronomy (ASTRON)

R. P. Breton

University of Southampton

D. Carbone

Universiteit Van Amsterdam

C. Ferrari

Observatoire de la Cote d'Azur

M. J. Hardcastle

University of Hertfordshire

W. Jurusik

Uniwersytet Jagiellonski w Krakowie

G. Macario

Observatoire de la Cote d'Azur

D. Mulcahy

Max-Planck Institut für Radioastronomie

University of Southampton

D. Rafferty

Universität Hamburg

A. Asgekar

Netherlands Institute for Radio Astronomy (ASTRON)

M. Brentjens

Netherlands Institute for Radio Astronomy (ASTRON)

R. A. Fallows

Netherlands Institute for Radio Astronomy (ASTRON)

W. Frieswijk

Netherlands Institute for Radio Astronomy (ASTRON)

M. C. Toribio

Netherlands Institute for Radio Astronomy (ASTRON)

B. Adebahr

Max-Planck Institut für Radioastronomie

M. Arts

Netherlands Institute for Radio Astronomy (ASTRON)

M. R. Bell

Max-Planck-Institut für Astrophysik

A. Bonafede

Universität Hamburg

J. Bray

University of Southampton

J. Broderick

University of Oxford

University of Southampton

T. Cantwell

University of Southampton

P. Carroll

University of Washington

Y. Cendes

Universiteit Van Amsterdam

A. O. Clarke

University of Southampton

J. Croston

University of Southampton

S. Daiboo

Université Paris Diderot

F. De Gasperin

Universität Hamburg

J. Gregson

Open University

J. Harwood

Netherlands Institute for Radio Astronomy (ASTRON)

University of Hertfordshire

T. Hassall

University of Southampton

V. Heesen

University of Southampton

A. Horneffer

Max-Planck Institut für Radioastronomie

A. J. van der Horst

Universiteit Van Amsterdam

M. Iacobelli

Netherlands Institute for Radio Astronomy (ASTRON)

Universiteit Leiden

V. Jelic

Netherlands Institute for Radio Astronomy (ASTRON)

Rijksuniversiteit Groningen

D. Jones

Radboud Universiteit

D. kant

Netherlands Institute for Radio Astronomy (ASTRON)

G. Kokotanekov

Universiteit Van Amsterdam

P. Martin

University of Southampton

J. P. McKean

Netherlands Institute for Radio Astronomy (ASTRON)

Rijksuniversiteit Groningen

L. K. Morabito

Universiteit Leiden

B. Nikiel-Wroczynski

Uniwersytet Jagiellonski w Krakowie

A. Offringa

Netherlands Institute for Radio Astronomy (ASTRON)

V. N. Pandey

Netherlands Institute for Radio Astronomy (ASTRON)

M. Pandey-Pommier

Université de Lyon

M. Pietka

University of Oxford

University of Southampton

L. Pratley

Victoria University of Wellington

C. Riseley

University of Southampton

A. Rowlinson

CSIRO Astronomy and Space Science

J. Sabater

University of Edinburgh

A. M. M. Scaife

University of Southampton

L. H. A. Scheers

Centrum voor Wiskunde en Informatica

K. Sendlinger

Ruhr-Universität Bochum

A. Shulevski

Rijksuniversiteit Groningen

M. Sipior

Netherlands Institute for Radio Astronomy (ASTRON)

C. Sobey

Max-Planck Institut für Radioastronomie

A. J. Stewart

University of Southampton

University of Oxford

A. Stroe

Universiteit Leiden

J. Swinbank

Universiteit Van Amsterdam

C. Tasse

Université Paris Diderot

Rhodes University

Square Kilometre Array, South Africa

J. Trustedt

Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)

Julius-Maximilians Universität Würzburg

Eskil Varenius

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

S. van Velzen

Johns Hopkins University

N. Vilchez

Netherlands Institute for Radio Astronomy (ASTRON)

R. J. van Weeren

Harvard-Smithsonian Center for Astrophysics

S. Wijnholds

Netherlands Institute for Radio Astronomy (ASTRON)

W. L. Williams

Universiteit Leiden

Netherlands Institute for Radio Astronomy (ASTRON)

A. G. de Bruyn

Netherlands Institute for Radio Astronomy (ASTRON)

Rijksuniversiteit Groningen

R. Nijboer

Netherlands Institute for Radio Astronomy (ASTRON)

M. Wise

Netherlands Institute for Radio Astronomy (ASTRON)

A. Alexov

Space Telescope Science Institute (STScI)

J. Anderson

Deutsches GeoForschungsZentrum (GFZ)

I. M. Avruch

Netherlands Institute for Space Research (SRON)

Rijksuniversiteit Groningen

R. Beck

Max-Planck Institut für Radioastronomie

M. E. Bell

CSIRO Astronomy and Space Science

I. van Bemmel

Netherlands Institute for Radio Astronomy (ASTRON)

Joint Institute for VLBI in Europe (JIVE)

M. J. Bentum

Universiteit Twente

Netherlands Institute for Radio Astronomy (ASTRON)

G. Bernardi

Université Nice Sophia Antipolis (UNS)

P. Best

University of Edinburgh

F. Breitling

Leibniz-Institut Für Astrophysik Potsdam

W. N. Brouw

Rijksuniversiteit Groningen

Netherlands Institute for Radio Astronomy (ASTRON)

M. Brüggen

Universität Hamburg

H. R. Butcher

Australian National University

B. Ciardi

Max-Planck-Institut für Astrophysik

John Conway

Chalmers, Rymd- och geovetenskap, Onsala rymdobservatorium

E. de Geus

SmarterVision BV

Netherlands Institute for Radio Astronomy (ASTRON)

A. de Jong

Netherlands Institute for Radio Astronomy (ASTRON)

M. de Vos

Netherlands Institute for Radio Astronomy (ASTRON)

A. Deller

Netherlands Institute for Radio Astronomy (ASTRON)

R. J. Dettmar

Ruhr-Universität Bochum

S. Duscha

Netherlands Institute for Radio Astronomy (ASTRON)

J. Eisloffel

Thüringer Landessternwarte Tautenburg

D. Engels

Hamburger Sternwarte

H. Falcke

Netherlands Institute for Radio Astronomy (ASTRON)

R. Fender

University of Oxford

M. A. Garrett

Netherlands Institute for Radio Astronomy (ASTRON)

J. Griessmeier

Universite d'Orleans

Observatoire de Paris

A. W. Gunst

Netherlands Institute for Radio Astronomy (ASTRON)

J. P. Hamaker

Netherlands Institute for Radio Astronomy (ASTRON)

J. W. T. Hessels

Netherlands Institute for Radio Astronomy (ASTRON)

Universiteit Van Amsterdam

M. Hoeft

Thüringer Landessternwarte Tautenburg

J. Horandel

Radboud Universiteit

H. A. Holties

Netherlands Institute for Radio Astronomy (ASTRON)

H. Intema

Universiteit Leiden

National Radio Astronomy Observatory

N. J. Jackson

University of Manchester

E. Jutte

Ruhr-Universität Bochum

A. Karastergiou

University of Oxford

W. F. A. Klijn

Netherlands Institute for Radio Astronomy (ASTRON)

V. I. Kondratiev

Netherlands Institute for Radio Astronomy (ASTRON)

Astro Space Center of Lebedev Physical Institute

L. V. E. Koopmans

Rijksuniversiteit Groningen

M. Kuniyoshi

Max-Planck Institut für Radioastronomie

National Astronomical Observatory of Japan

G. Kuper

Netherlands Institute for Radio Astronomy (ASTRON)

C. Law

University of California

J. van Leeuwen

Netherlands Institute for Radio Astronomy (ASTRON)

Universiteit Van Amsterdam

M. Loose

Netherlands Institute for Radio Astronomy (ASTRON)

P. Maat

Netherlands Institute for Radio Astronomy (ASTRON)

S. Markoff

Universiteit Van Amsterdam

R. McFadden

Netherlands Institute for Radio Astronomy (ASTRON)

D. McKay-Bukowski

STFC Rutherford Appleton Laboratory

Oulun Yliopisto

M. Mevius

Netherlands Institute for Radio Astronomy (ASTRON)

Rijksuniversiteit Groningen

J. C. A. Miller-Jones

Universiteit Van Amsterdam

Curtin University

R. Morganti

Rijksuniversiteit Groningen

Netherlands Institute for Radio Astronomy (ASTRON)

H. Munk

Netherlands Institute for Radio Astronomy (ASTRON)

A. Nelles

Radboud Universiteit

J. E. Noordam

Netherlands Institute for Radio Astronomy (ASTRON)

M. J. Norden

Netherlands Institute for Radio Astronomy (ASTRON)

H. Paas

Rijksuniversiteit Groningen

A. G. Polatidis

Netherlands Institute for Radio Astronomy (ASTRON)

W. Reich

Max-Planck Institut für Radioastronomie

A. Renting

Netherlands Institute for Radio Astronomy (ASTRON)

H. Rottgering

Universiteit Leiden

A. Schoenmakers

Netherlands Institute for Radio Astronomy (ASTRON)

D. Schwarz

Universiteit Twente

J. Sluman

Netherlands Institute for Radio Astronomy (ASTRON)

O. Smirnov

Rhodes University

Square Kilometre Array, South Africa

B. W. Stappers

University of Manchester

M. Steinmetz

Leibniz-Institut Für Astrophysik Potsdam

M. Tagger

Universite d'Orleans

Y. Tang

Netherlands Institute for Radio Astronomy (ASTRON)

S. ter Veen

Radboud Universiteit

S. Thoudam

Radboud Universiteit

R. Vermeulen

Netherlands Institute for Radio Astronomy (ASTRON)

C. Vocks

Leibniz-Institut Für Astrophysik Potsdam

C. Vogt

Netherlands Institute for Radio Astronomy (ASTRON)

Ramj Wijers

Universiteit Van Amsterdam

O. Wucknitz

Max-Planck Institut für Radioastronomie

S. Yatawatta

Netherlands Institute for Radio Astronomy (ASTRON)

P. Zarka

Université Paris Diderot

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 582 22- A123

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.1051/0004-6361/201425210

Mer information

Senast uppdaterat

2021-05-20