prikaz prve stranice dokumenta The VLA-COSMOS Survey - V. 324 MHz continuum observations
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Scientific paper - Original scientific paper
The VLA-COSMOS Survey - V. 324 MHz continuum observations
Monthly Notices of the Royal Astronomical Society, 443 (2014), 3; 2590-2598. https://doi.org/10.1093/mnras/stu1331
Smolčić, Vernesa; Ciliegi, Paolo; Jelić, Vibor; Bondi, Marco; Schinnerer, Eva; Carilli, Chris L.; Riechers, Dominik A.; Salvato, Mara; Brković, Alen; Capak, Peter; Ilbert, Olivier; Karim, Alexander; McCracken, Henry; Scoville, Nick Z.

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Smolčić, V., Ciliegi, P., Jelić, V., Bondi, M., Schinnerer, E., Carilli, C. L. ... Scoville, N. Z. (2014). The VLA-COSMOS Survey - V. 324 MHz continuum observations. Monthly Notices of the Royal Astronomical Society, 443. (3), 2590-2598. doi: 10.1093/mnras/stu1331

Smolčić, Vernesa, et al. "The VLA-COSMOS Survey - V. 324 MHz continuum observations." Monthly Notices of the Royal Astronomical Society, vol. 443, no. 3, 2014, pp. 2590-2598. https://doi.org/10.1093/mnras/stu1331

Smolčić, Vernesa, Paolo Ciliegi, Vibor Jelić, Marco Bondi, Eva Schinnerer, Chris L. Carilli, Dominik A. Riechers, et al. "The VLA-COSMOS Survey - V. 324 MHz continuum observations." Monthly Notices of the Royal Astronomical Society 443, no. 3 (2014): 2590-2598. https://doi.org/10.1093/mnras/stu1331

Smolčić, V., et al. (2014) 'The VLA-COSMOS Survey - V. 324 MHz continuum observations', Monthly Notices of the Royal Astronomical Society, 443(3), pp. 2590-2598. doi: 10.1093/mnras/stu1331

Smolčić V, Ciliegi P, Jelić V, Bondi M, Schinnerer E, Carilli CL, and sur.. The VLA-COSMOS Survey - V. 324 MHz continuum observations. Monthly Notices of the Royal Astronomical Society [Internet]. 2014 [cited 2024 December 07];443(3):2590-2598. doi: 10.1093/mnras/stu1331

V. Smolčić, et al., "The VLA-COSMOS Survey - V. 324 MHz continuum observations", Monthly Notices of the Royal Astronomical Society, vol. 443, no. 3, pp. 2590-2598, 2014. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:554124. [Accessed: 07 December 2024]

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Metadata
Title (english)The VLA-COSMOS Survey - V. 324 MHz continuum observations
AuthorVernesa Smolčić
AuthorPaolo Ciliegi
AuthorVibor Jelić
AuthorMarco Bondi
AuthorEva Schinnerer
AuthorChris L. Carilli
AuthorDominik A. Riechers
AuthorMara Salvato
AuthorAlen Brković
AuthorPeter Capak
AuthorOlivier Ilbert
AuthorAlexander Karim
AuthorHenry McCracken
AuthorNick Z. Scoville
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We present 90 cm Very Large Array imaging of the COSMOS field, comprising a circular area of 3.14 square degrees at 8.0arcsec × 6.0arcsec angular resolution with an average rms of 0.5 mJy beam^(−1). The extracted catalogue contains 182 sources (down to 5.5σ), 30 of which are multicomponent sources. Using Monte Carlo artificial source simulations, we derive the completeness of the catalogue, and we show that our 90 cm source counts agree very well with those from previous studies. Using X-ray, NUV–NIR and radio COSMOS data to investigate the population mix of our 90 cm radio sample, we find that our sample is dominated by active galactic nuclei. The average 90–20 cm spectral index (S_ν ∝ ν^α, where S_ν is the flux density at frequency ν and α the spectral index) of our 90 cm selected sources is −0.70, with an interquartile range from −0.90 to −0.53. Only a few ultra-steep-spectrum sources are present in our sample, consistent with results in the literature for similar fields. Our data do not show clear steepening of the spectral index with redshift. Nevertheless, our sample suggests that sources with spectral indices steeper than −1 all lie at z ≳ 1, in agreement with the idea that ultra-steep-spectrum radio sources may trace intermediate-redshift galaxies (z ≳ 1).
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleMonthly Notices of the Royal Astronomical Society
Numberingvol. 443, no. 3, pp. 2590-2598
p-ISSN0035-8711
e-ISSN1365-2966
DOIhttps://doi.org/10.1093/mnras/stu1331
URN:NBNurn:nbn:hr:217:554124
Publication2014
Document URLhttps://academic.oup.com/mnras/article/443/3/2590/1750596
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2014 July 1. Received 2014 June 23; in original form 2014 April 1.
Created on2019-12-29 10:16:35