2013A&A...556A...2V


Query : 2013A&A...556A...2V

2013A&A...556A...2V - Astronomy and Astrophysics, volume 556A, 2-2 (2013/8-1)

LOFAR: the LOw-frequency ARray.

VAN HAARLEM M.P., WISE M.W., GUNST A.W., HEALD G., McKEAN J.P., HESSELS J.W.T., DE BRUYN A.G., NIJBOER R., SWINBANK J., FALLOWS R., BRENTJENS M., NELLES A., BECK R., FALCKE H., FENDER R., HOERANDEL J., KOOPMANS L.V.E., MANN G., MILEY G., ROETTGERING H., STAPPERS B.W., WIJERS R.A.M.J., ZAROUBI S., VAN DEN AKKER M., ALEXOV A., ANDERSON J., ANDERSON K., VAN ARDENNE A., ARTS M., ASGEKAR A., AVRUCH I.M., BATEJAT F., BAEHREN L., BELL M.E., BELL M.R., VAN BEMMEL I., BENNEMA P., BENTUM M.J., BERNARDI G., BEST P., BIRZAN L., BONAFEDE A., BOONSTRA A.-J., BRAUN R., BREGMAN J., BREITLING F., VAN DE BRINK R.H., BRODERICK J., BROEKEMA P.C., BROUW W.N., BRUEGGEN M., BUTCHER H.R., VAN CAPPELLEN W., CIARDI B., COENEN T., CONWAY J., COOLEN A., CORSTANJE A., DAMSTRA S., DAVIES O., DELLER A.T., DETTMAR R.-J., VAN DIEPEN G., DIJKSTRA K., DONKER P., DOORDUIN A., DROMER J., DROST M., VAN DUIN A., EISLOEFFEL J., VAN ENST J., FERRARI C., FRIESWIJK W., GANKEMA H., GARRETT M.A., DE GASPERIN F., GERBERS M., DE GEUS E., GRIESSMEIER J.-M., GRIT T., GRUPPEN P., HAMAKER J.P., HASSALL T., HOEFT M., HOLTIES H.A., HORNEFFER A., VAN DER HORST A., VAN HOUWELINGEN A., HUIJGEN A., IACOBELLI M., INTEMA H., JACKSON N., JELIC V., DE JONG A., JUETTE E., KANT D., KARASTERGIOU A., KOERS A., KOLLEN H., KONDRATIEV V.I., KOOISTRA E., KOOPMAN Y., KOSTER A., KUNIYOSHI M., KRAMER M., KUPER G., LAMBROPOULOS P., LAW C., VAN LEEUWEN J., LEMAITRE J., LOOSE M., MAAT P., MACARIO G., MARKOFF S., MASTERS J., McFADDEN R.A., McKAY-BUKOWSKI D., MEIJERING H., MEULMAN H., MEVIUS M., MILLENAAR R., MILLER-JONES J.C.A., MOHAN R.N., MOL J.D., MORAWIETZ J., MORGANTI R., MULCAHY D.D., MULDER E., MUNK H., NIEUWENHUIS L., VAN NIEUWPOORT R., NOORDAM J.E., NORDEN M., NOUTSOS A., OFFRINGA A.R., OLOFSSON H., OMAR A., ORRU E., OVEREEM R., PAAS H., PANDEY-POMMIER M., PANDEY V.N., PIZZO R., POLATIDIS A., RAFFERTY D., RAWLINGS S., REICH W., DE REIJER J.-P., REITSMA J., RENTING G.A., RIEMERS P., ROL E., ROMEIN J.W., ROOSJEN J., RUITER M., SCAIFE A., VAN DER SCHAAF K., SCHEERS B., SCHELLART P., SCHOENMAKERS A., SCHOONDERBEEK G., SERYLAK M., SHULEVSKI A., SLUMAN J., SMIRNOV O., SOBEY C., SPREEUW H., STEINMETZ M., STERKS C.G.M., STIEPEL H.-J., STUURWOLD K., TAGGER M., TANG Y., TASSE C., THOMAS I., THOUDAM S., TORIBIO M.C., VAN DER TOL B., USOV O., VAN VEELEN M., VAN DER VEEN A.-J., TER VEEN S., VERBIEST J.P.W., VERMEULEN R., VERMAAS N., VOCKS C., VOGT C., DE VOS M., VAN DER WAL E., VAN WEEREN R., WEGGEMANS H., WELTEVREDE P., WHITE S., WIJNHOLDS S.J., WILHELMSSON T., WUCKNITZ O., YATAWATTA S., ZARKA P., ZENSUS A. and VAN ZWIETEN J.

Abstract (from CDS):

LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR covers the largely unexplored low-frequency range from 10-240MHz and provides a number of unique observing capabilities. Spreading out from a core located near the village of Exloo in the northeast of the Netherlands, a total of 40 LOFAR stations are nearing completion. A further five stations have been deployed throughout Germany, and one station has been built in each of France, Sweden, and the UK. Digital beam-forming techniques make the LOFAR system agile and allow for rapid repointing of the telescope as well as the potential for multiple simultaneous observations. With its dense core array and long interferometric baselines, LOFAR achieves unparalleled sensitivity and angular resolution in the low-frequency radio regime. The LOFAR facilities are jointly operated by the International LOFAR Telescope (ILT) foundation, as an observatory open to the global astronomical community. LOFAR is one of the first radio observatories to feature automated processing pipelines to deliver fully calibrated science products to its user community. LOFAR's new capabilities, techniques and modus operandi make it an important pathfinder for the Square Kilometre Array (SKA). We give an overview of the LOFAR instrument, its major hardware and software components, and the core science objectives that have driven its design. In addition, we present a selection of new results from the commissioning phase of this new radio observatory.

Abstract Copyright:

Journal keyword(s): instrumentation: interferometers - radio continuum: general - radio lines: general - dark ages, reionization, first stars - telescopes

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME NCP reg 00 00 00 +90 00.0           ~ 163 0
2 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 170 0
3 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11941 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10381 1
5 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2697 2
6 PSR B0329+54 Psr 03 32 59.3370698592 +54 34 45.028206408           ~ 609 1
7 M 1 SNR 05 34 32 +22 00.8           ~ 5956 1
8 3C 196 Sy1 08 13 36.0561170112 +48 13 02.644966020   18.36 17.79     ~ 523 2
9 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 387 0
10 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 320 1
11 PSR B0950+08 Psr 09 53 09.2970 +07 55 36.400           ~ 725 2
12 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5600 1
13 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4120 4
14 3C 295 Sy2 14 11 20.467 +52 12 09.52   22.34 20.80 18.54   ~ 948 5
15 PSR B1530+27 Psr 15 32 10.364 +27 45 49.40           ~ 105 0
16 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13192 0
17 GRB 070610 X 19 55 09.60 +26 14 06.7           ~ 53 0
18 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2257 2
19 PSR B2217+47 Psr 22 19 48.139 +47 54 53.93           ~ 211 0
20 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2632 1

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2022.10.01-12:21:02

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