prikaz prve stranice dokumenta New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field
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Scientific paper - Original scientific paper
New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field
Monthly Notices of the Royal Astronomical Society, 447 (2015), 2; 1282-1288. https://doi.org/10.1093/mnras/stu2473
Novak, Mladen; Smolčić, Vernesa; Civano, Francesca; Bondi, Marco; Ciliegi, Paolo; Wang, Xiawei; Loeb, Abraham; Banfield, Julie; Bourke, Stephen; Elvis, Martin; Hallinan, Gregg; Intema, Huib T.; Klöckner, Hans-Rainer; Mooley, Kunal; Navarrete, Felipe More authors...

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Novak, M., Smolčić, V., Civano, F., Bondi, M., Ciliegi, P., Wang, X. ... Navarrete, F. (2015). New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field. Monthly Notices of the Royal Astronomical Society, 447. (2), 1282-1288. doi: 10.1093/mnras/stu2473

Novak, Mladen, et al. "New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field." Monthly Notices of the Royal Astronomical Society, vol. 447, no. 2, 2015, pp. 1282-1288. https://doi.org/10.1093/mnras/stu2473

Novak, Mladen, Vernesa Smolčić, Francesca Civano, Marco Bondi, Paolo Ciliegi, Xiawei Wang, Abraham Loeb, et al. "New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field." Monthly Notices of the Royal Astronomical Society 447, no. 2 (2015): 1282-1288. https://doi.org/10.1093/mnras/stu2473

Novak, M., et al. (2015) 'New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field', Monthly Notices of the Royal Astronomical Society, 447(2), pp. 1282-1288. doi: 10.1093/mnras/stu2473

Novak M, Smolčić V, Civano F, Bondi M, Ciliegi P, Wang X, and sur.. New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field. Monthly Notices of the Royal Astronomical Society [Internet]. 2015 [cited 2025 March 19];447(2):1282-1288. doi: 10.1093/mnras/stu2473

M. Novak, et al., "New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field", Monthly Notices of the Royal Astronomical Society, vol. 447, no. 2, pp. 1282-1288, 2015. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:277082. [Accessed: 19 March 2025]

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Metadata
Title (english)New insights from deep VLA data on the potentially recoiling black hole CID-42 in the COSMOS field
AuthorMladen Novak
AuthorVernesa Smolčić
AuthorFrancesca Civano
AuthorMarco Bondi
AuthorPaolo Ciliegi
AuthorXiawei Wang
AuthorAbraham Loeb
AuthorJulie Banfield
AuthorStephen Bourke
AuthorMartin Elvis
AuthorGregg Hallinan
AuthorHuib T. Intema
AuthorHans-Rainer Klöckner
AuthorKunal Mooley
AuthorFelipe Navarrete
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We present deep 3-GHz Karl G. Jansky Very Large Array (VLA) observations of the potentially recoiling black hole CID-42 in the Cosmic Evolution Survey (COSMOS) field. This galaxy shows two optical nuclei in the Hubble Space Telescope/Advanced Camera for Surveys (HST/ACS) image and a large velocity offset of ≈1300 km s^(−1) between the broad and narrow Hβ emission line although the spectrum is not spacially resolved (Civano et al. 2010). The new 3 GHz VLA data have a bandwidth of 2 GHz and to correctly interpret the flux densities imaging was done with two different methods: multiscale multifrequency (MSMF) synthesis and spectral windows (SPWs) stacking. The final resolutions and sensitivities of these maps are 0.7 arcsec with rms = 4.6 μJy beam^(−1) and 0.9 arcsec with rms = 4.8 μJy beam^(−1), respectively. With a 7σ detection, we find that the entire observed 3-GHz radio emission can be associated with the south-eastern component of CID-42, coincident with the detected X-ray emission. We use our 3 GHz data combined with other radio data from the literature ranging from 320 MHz to 9 GHz, which include the VLA, Very Long Baseline Array (VLBA) and Giant Metrewave Radio Telescope (GMRT) data, to construct a radio synchrotron spectrum of CID-42. The radio spectrum suggests a type I unobscured radio-quiet flat-spectrum active galactic nucleus (AGN) in the south-eastern component which may be surrounded by a more extended region of old synchrotron electron population or shocks generated by the outflow from the supermassive black hole (SMBH). Our data are consistent with the recoiling black hole picture but cannot rule out the presence of an obscured and radio-quiet SMBH in the north-western component.
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. 447, no. 2, pp. 1282-1288
p-ISSN0035-8711
e-ISSN1365-2966
DOIhttps://doi.org/10.1093/mnras/stu2473
URN:NBNurn:nbn:hr:217:277082
Publication2015
Document URLhttps://academic.oup.com/mnras/article/447/2/1282/2593641
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 November 20. Received 2014 November 19; in original form 2014 September 25. First published online December 24, 2014.
Created on2020-01-10 20:35:48