prikaz prve stranice dokumenta The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias
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Scientific paper - Original scientific paper
The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias
Monthly Notices of the Royal Astronomical Society, 504 (2021), 1; 118-145. https://doi.org/10.1093/mnras/stab746
Molnár, Dániel Cs; Sargent, Mark T; Leslie, Sarah; Magnelli, Benjamin; Schinnerer, Eva; Zamorani, Giovanni; Delhaize, Jacinta; Smolčić, Vernesa; Tisanić, Krešimir; Vardoulaki, Eleni

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Molnár, D. C., Sargent, M. T., Leslie, S., Magnelli, B., Schinnerer, E., Zamorani, G. ... Vardoulaki, E. (2021). The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias. Monthly Notices of the Royal Astronomical Society, 504. (1), 118-145. doi: 10.1093/mnras/stab746

Molnár, Dániel Cs, et al. "The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias." Monthly Notices of the Royal Astronomical Society, vol. 504, no. 1, 2021, pp. 118-145. https://doi.org/10.1093/mnras/stab746

Molnár, Dániel Cs, Mark T Sargent, Sarah Leslie, Benjamin Magnelli, Eva Schinnerer, Giovanni Zamorani, Jacinta Delhaize, Vernesa Smolčić, Krešimir Tisanić and Eleni Vardoulaki. "The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias." Monthly Notices of the Royal Astronomical Society 504, no. 1 (2021): 118-145. https://doi.org/10.1093/mnras/stab746

Molnár, D. C., et al. (2021) 'The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias', Monthly Notices of the Royal Astronomical Society, 504(1), pp. 118-145. doi: 10.1093/mnras/stab746

Molnár DC, Sargent MT, Leslie S, Magnelli B, Schinnerer E, Zamorani G, and sur.. The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias. Monthly Notices of the Royal Astronomical Society [Internet]. 2021 [cited 2024 September 30];504(1):118-145. doi: 10.1093/mnras/stab746

D. C. Molnár, et al., "The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias", Monthly Notices of the Royal Astronomical Society, vol. 504, no. 1, pp. 118-145, 2021. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:560564. [Accessed: 30 September 2024]

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Metadata
Title (english)The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias
AuthorDániel Cs Molnár
AuthorMark T Sargent
AuthorSarah Leslie
AuthorBenjamin Magnelli
AuthorEva Schinnerer
AuthorGiovanni Zamorani
AuthorJacinta Delhaize
AuthorVernesa Smolčić
AuthorKrešimir Tisanić
AuthorEleni Vardoulaki
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The infrared-radio correlation (IRRC) underpins many commonly used radio luminosity–star formation rate (SFR) calibrations. In preparation for the new generation of radio surveys, we revisit the IRRC of low-z galaxies by (a) drawing on the best currently available infrared (IR) and 1.4 GHz radio photometry, plus ancillary data over the widest possible area, and (b) carefully assessing potential systematics. We compile a catalogue of ∼9500, z < 0.2 galaxies and derive their 1.4 GHz radio (L1.4), total IR, and monochromatic IR luminosities in up to seven bands, allowing us to parametrize the wavelength dependence of monochromatic IRRCs from 22–500 µm. For the first time for low-z samples, we quantify how poorly matched IR and radio survey depths bias measured median IR/radio ratios, q¯¯TIR⁠, and discuss the level of biasing expected for low-z IRRC studies in ASKAP/MeerKAT fields. For our subset of ∼2000 high-confidence star-forming galaxies, we find a median q¯¯TIR of 2.54 (scatter: 0.17 dex). We show that q¯¯TIR correlates with L1.4, implying a non- linear IRRC with slope 1.11 ± 0.01. Our new L1.4– SFR calibration, which incorporates this non- linearity, reproduces SFRs from panchromatic SED fits substantially better than previous IRRC-based recipes. Finally, we match the evolutionary slope of recently measured q¯¯TIR–redshift trends without having to invoke redshift evolution of the IRRC. In this framework, the redshift evolution of q¯¯TIR reported at GHz frequencies in the literature is the consequence of a partial, redshift-dependent sampling of a non-linear IRRC obeyed by low-z and distant galaxies.
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. 504, no. 1, pp. 118-145
p-ISSN0035-8711
e-ISSN1365-2966
DOIhttps://doi.org/10.1093/mnras/stab746
URN:NBNurn:nbn:hr:217:560564
Publication2021
Document URLhttps://academic.oup.com/mnras/article/504/1/118/6169741
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2021 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. Accepted 2021 March 5. Received 2021 March 5; in original form 2019 December 7.
Created on2024-09-29 11:00:01