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Sökning: WFRF:(Bourke Stephen 1978) > The VLBA CANDELS GO...

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FältnamnIndikatorerMetadata
00004693naa a2200505 4500
001oai:research.chalmers.se:beb50e10-3697-421f-8218-67665df2dd96
003SwePub
008240328s2024 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5405362 URI
0247 a https://doi.org/10.1093/mnras/stae2532 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Deane, R. P.u University of Witwatersrand,Universiteit van Pretoria,University of Pretoria4 aut
2451 0a The VLBA CANDELS GOODS-North Survey -I. survey design, processing, data products, and source counts
264 1c 2024
338 a electronic2 rdacarrier
520 a The past decade has seen significant advances in wide-field cm-wave very long baseline interferometry (VLBI), which is timely given the wide-area, synoptic survey-driven strategy of major facilities across the electromagnetic spectrum. While wide-field VLBI poses significant post-processing challenges that can severely curtail its potential scientific yield, man y dev elopments in the km-scale connected-element interferometer sphere are directly applicable to addressing these. Here we present the design, processing, data products, and source counts from a deep (11 μJy beam -1 ), quasi-uniform sensitivity, contiguous wide-field (160 arcmin 2 ) 1.6 GHz VLBI surv e y of the CANDELS GOODS-North field. This is one of the best-studied extragalactic fields at milli-arcsecond resolution and, therefore, is well-suited as a comparative study for our Tera-pixel VLBI image. The derived VLBI source counts show consistency with those measured in the COSMOS field, which broadly traces the AGN population detected in arcsecond-scale radio surv e ys. Ho we ver, there is a distinctive flattening in the S 1.4GHz ∼100-500 μJy flux density range, which suggests a transition in the population of compact faint radio sources, qualitatively consistent with the excess source counts at 15 GHz that is argued to be an unmodelled population of radio cores. This surv e y approach will assist in deriving robust VLBI source counts and broadening the disco v ery space for future wide-field VLBI surv e ys, including VLBI with the Square Kilometre Array, which will include new large field-of-view antennas on the African continent at ≲1000 km baselines. In addition, it may be useful in the design of both monitoring and/or rapidly triggered VLBI transient programmes.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
650 7a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng
653 a galaxies: active
653 a techniques: interferometric
653 a techniques: high angular resolution
7001 a Radcliffe, Jack F.u University of Manchester,Universiteit van Pretoria,University of Pretoria4 aut
7001 a Njeri, Annu University of Manchester,University of Newcastle upon Tyne4 aut
7001 a Akoto-Danso, Alexanderu Ghana Atomic Energy Commission,Rhodes University4 aut
7001 a Bernardi, Gianniu Rhodes University,Istituto di Radioastronomia4 aut
7001 a Smirnov, O.u Rhodes University4 aut
7001 a Beswick, R. J.u University of Manchester4 aut
7001 a Garrett, Michael A.u University of Manchester,Universiteit Leiden (UL),Leiden University (UL)4 aut
7001 a Jarvis, M.J.u University of the Western Cape,University Of Oxford4 aut
7001 a Whittam, Imogen H.u University of the Western Cape,University Of Oxford4 aut
7001 a Bourke, Stephen,d 1978u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)bourke
7001 a Paragi, Z.u Joint Institute for VLBI in Europe (JIVE)4 aut
7102 a University of Witwatersrandb Universiteit van Pretoria4 org
7730 t Monthly Notices of the Royal Astronomical Societyg 529:3, s. 2428-2442q 529:3<2428-2442x 0035-8711x 1365-2966
8564 u https://research.chalmers.se/publication/540536/file/540536_Fulltext.pdfx primaryx freey FULLTEXT
8564 8u https://research.chalmers.se/publication/540536
8564 8u https://doi.org/10.1093/mnras/stae253

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