A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity

Morić, I.; Smolčić, Vernesa; Kimball, A.; Riechers, D. A.; Ivezić, Ž.; Scoville, N.

doi:10.1088/0004-637X/724/1/779

prikaz prve stranice dokumenta A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity

Scientific paper - Original scientific paper

A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity

Astrophysical Journal, 724 (2010), 1; 779-790. https://doi.org/10.1088/0004-637X/724/1/779

Morić, I.; Smolčić, Vernesa; Kimball, A.; Riechers, D. A.; Ivezić, Ž.; Scoville, N.

Cite this document

APA 6th Edition

Morić, I., Smolčić, V., Kimball, A., Riechers, D. A., Ivezić, Ž. & Scoville, N. (2010). A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity. Astrophysical Journal, 724. (1), 779-790. doi: 10.1088/0004-637X/724/1/779

MLA 8th Edition

Morić, I., et al. "A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity." Astrophysical Journal, vol. 724, no. 1, 2010, pp. 779-790. https://doi.org/10.1088/0004-637X/724/1/779

Chicago 17th Edition

Morić, I., Vernesa Smolčić, A. Kimball, D. A. Riechers, Ž. Ivezić and N. Scoville. "A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity." Astrophysical Journal 724, no. 1 (2010): 779-790. https://doi.org/10.1088/0004-637X/724/1/779

Harvard

Morić, I., et al. (2010) 'A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity', Astrophysical Journal, 724(1), pp. 779-790. doi: 10.1088/0004-637X/724/1/779

Vancouver

Morić I, Smolčić V, Kimball A, Riechers DA, Ivezić Ž, Scoville N. A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity. Astrophysical Journal [Internet]. 2010 [cited 2025 January 15];724(1):779-790. doi: 10.1088/0004-637X/724/1/779

IEEE

I. Morić, V. Smolčić, A. Kimball, D. A. Riechers, Ž. Ivezić and N. Scoville, "A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity", Astrophysical Journal, vol. 724, no. 1, pp. 779-790, 2010. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:660581. [Accessed: 15 January 2025]

Cite this item: https://urn.nsk.hr/urn:nbn:hr:217:660581

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Metadata

Title (english)	A Closer View of the Radio-FIR Correlation: Disentangling the Contributions of Star Formation and Active Galactic Nucleus Activity
Author	I. Morić
Author	Vernesa Smolčić
Author	A. Kimball
Author	D. A. Riechers
Author	Ž. Ivezić
Author	N. Scoville
Author's institution	University of Zagreb Faculty of Science (Department of Physics)
Scientific / art field, discipline and subdiscipline	NATURAL SCIENCES Physics
Abstract (english)	We extend the Unified Radio Catalog, a catalog of sources detected by various (NVSS, FIRST, WENSS, GB6) radio surveys, and SDSS, to IR wavelengths by matching it to the IRAS Point and Faint Source catalogs. By fitting each NVSS-selected galaxy's NUV-NIR spectral energy distribution (SED) with stellar population synthesis models we add to the catalog star formation rates (SFRs), stellar masses, and attenuations. We further add information about optical emission-line properties for NVSS-selected galaxies with available SDSS spectroscopy. Using an NVSS 20 cm (F_(1.4 GHz) ≳ 2.5 mJy) selected sample, matched to the SDSS spectroscopic ("main" galaxy and quasar) catalogs and IRAS data (0.04 < z ≲ 0.2) we perform an in-depth analysis of the radio-FIR correlation for various types of galaxies, separated into (1) quasars, (2) star-forming, (3) composite, (4) Seyfert, (5) LINER, and (6) absorption line galaxies using the standard optical spectroscopic diagnostic tools. We utilize SED-based SFRs to independently quantify the source of radio and FIR emission in our galaxies. Our results show that Seyfert galaxies have FIR/radio ratios lower than, but still within the scatter of, the canonical value due to an additional (likely active galactic nucleus (AGN)) contribution to their radio continuum emission. Furthermore, IR-detected absorption and LINER galaxies are on average strongly dominated by AGN activity in both their FIR and radio emission; however their average FIR/radio ratio is consistent with that expected for star-forming galaxies. In summary, we find that most AGN-containing galaxies in our NVSS-IRAS-SDSS sample have FIR/radio flux ratios indistinguishable from those of the star-forming galaxies that define the radio-FIR correlation. Thus, attempts to separate AGNs from star-forming galaxies by their FIR/radio flux ratios alone can separate only a small fraction of the AGNs, such as the radio-loud quasars.
Keywords (english)
Language	english
Publication type	Scientific paper - Original scientific paper
Publication status	Published
Peer review	Peer review - international
Publication version	Published version
Journal title	Astrophysical Journal
Numbering	vol. 724, no. 1, pp. 779-790
p-ISSN	0004-637X
e-ISSN	1538-4357
DOI	https://doi.org/10.1088/0004-637X/724/1/779
URN:NBN	urn:nbn:hr:217:660581
Publication	2010
Document URL	http://dx.doi.org/10.1088/0004-637X/724/1/779
Type of resource	Text
Access conditions	Open access
Terms of use
Public note	© 2010 American Astronomical Society. Received 2010 August 9; accepted 2010 September 21; published 2010 November 4.
Created on	2019-11-01 19:18:16