Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field

D. De Cicco; S. Falocco; M. Paolillo; G. Covone; G. Longo; A. Grado; L. Limatola; M. T. Botticella; G. Pignata; E. Cappellaro; M. Vaccari; D. Trevese; F. Vagnetti; M. Salvato; M. Radovich; W. N. Brandt; M. Capaccioli; N. R. Napolitano; P. Schipani

doi:10.1007/978-3-319-19330-4_42

Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field

D. De Cicco, S. Falocco, M. Paolillo, G. Covone, G. Longo, A. Grado, L. Limatola, M. T. Botticella, G. Pignata, E. Cappellaro, M. Vaccari, D. Trevese, F. Vagnetti, M. Salvato, M. Radovich, W. N. Brandt, M. Capaccioli, N. R. Napolitano, P. Schipani

Exact Sciences School

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Variability is characteristic of active galaxies; luminosity variations generally occur at all wavelengths, affecting both continuum and line emission, with timescales and amplitudes depending on the wavelength. We made use of optical variability to select AGNs in the VST-SUDARE survey of the COSMOS field, and confirmed 95% of them by means of multiwavelength data from overlapping surveys. The analysis returns a sample of AGN candidates with 81% purity and 15% completeness with respect to the X-ray confirmed AGNs in the field with an optical counterpart. This study provides an estimate of the reliability of the AGN selection techniques based on variability, which will be used by future wide-field surveys, such as those by LSST.

Original language	English
Title of host publication	The Universe of Digital Sky Surveys - A Meeting to Honour the 70th Birthday of Massimo Capaccioli
Publisher	Kluwer Academic Publishers
Pages	269-274
Number of pages	6
Volume	42
ISBN (Print)	9783319193298
DOIs	https://doi.org/10.1007/978-3-319-19330-4_42
Publication status	Published - 2016
Event	Conference on Universe of Digital Sky Surveys, 2014 - Naples, Italy Duration: 25 Nov 2014 → 28 Nov 2014

Other

Other	Conference on Universe of Digital Sky Surveys, 2014
Country/Territory	Italy
City	Naples
Period	25/11/14 → 28/11/14

ASJC Scopus subject areas

Physics and Astronomy(all)
Computer Science Applications
Spectroscopy
Space and Planetary Science
Nuclear and High Energy Physics

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10.1007/978-3-319-19330-4_42

Cite this

De Cicco, D., Falocco, S., Paolillo, M., Covone, G., Longo, G., Grado, A., Limatola, L., Botticella, M. T., Pignata, G., Cappellaro, E., Vaccari, M., Trevese, D., Vagnetti, F., Salvato, M., Radovich, M., Brandt, W. N., Capaccioli, M., Napolitano, N. R., & Schipani, P. (2016). Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field. In The Universe of Digital Sky Surveys - A Meeting to Honour the 70th Birthday of Massimo Capaccioli (Vol. 42, pp. 269-274). Kluwer Academic Publishers. https://doi.org/10.1007/978-3-319-19330-4_42

@inproceedings{c931081f48d641d49bcc8aba913a9634,

title = "Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field",

abstract = "Variability is characteristic of active galaxies; luminosity variations generally occur at all wavelengths, affecting both continuum and line emission, with timescales and amplitudes depending on the wavelength. We made use of optical variability to select AGNs in the VST-SUDARE survey of the COSMOS field, and confirmed 95% of them by means of multiwavelength data from overlapping surveys. The analysis returns a sample of AGN candidates with 81% purity and 15% completeness with respect to the X-ray confirmed AGNs in the field with an optical counterpart. This study provides an estimate of the reliability of the AGN selection techniques based on variability, which will be used by future wide-field surveys, such as those by LSST.",

author = "{De Cicco}, D. and S. Falocco and M. Paolillo and G. Covone and G. Longo and A. Grado and L. Limatola and Botticella, {M. T.} and G. Pignata and E. Cappellaro and M. Vaccari and D. Trevese and F. Vagnetti and M. Salvato and M. Radovich and Brandt, {W. N.} and M. Capaccioli and Napolitano, {N. R.} and P. Schipani",

year = "2016",

doi = "10.1007/978-3-319-19330-4_42",

language = "English",

isbn = "9783319193298",

volume = "42",

pages = "269--274",

booktitle = "The Universe of Digital Sky Surveys - A Meeting to Honour the 70th Birthday of Massimo Capaccioli",

publisher = "Kluwer Academic Publishers",

note = "Conference on Universe of Digital Sky Surveys, 2014 ; Conference date: 25-11-2014 Through 28-11-2014",

}

De Cicco, D, Falocco, S, Paolillo, M, Covone, G, Longo, G, Grado, A, Limatola, L, Botticella, MT, Pignata, G, Cappellaro, E, Vaccari, M, Trevese, D, Vagnetti, F, Salvato, M, Radovich, M, Brandt, WN, Capaccioli, M, Napolitano, NR & Schipani, P 2016, Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field. in The Universe of Digital Sky Surveys - A Meeting to Honour the 70th Birthday of Massimo Capaccioli. vol. 42, Kluwer Academic Publishers, pp. 269-274, Conference on Universe of Digital Sky Surveys, 2014, Naples, Italy, 25/11/14. https://doi.org/10.1007/978-3-319-19330-4_42

Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field. / De Cicco, D.; Falocco, S.; Paolillo, M. et al.

The Universe of Digital Sky Surveys - A Meeting to Honour the 70th Birthday of Massimo Capaccioli. Vol. 42 Kluwer Academic Publishers, 2016. p. 269-274.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field

AU - De Cicco, D.

AU - Falocco, S.

AU - Paolillo, M.

AU - Covone, G.

AU - Longo, G.

AU - Grado, A.

AU - Limatola, L.

AU - Botticella, M. T.

AU - Pignata, G.

AU - Cappellaro, E.

AU - Vaccari, M.

AU - Trevese, D.

AU - Vagnetti, F.

AU - Salvato, M.

AU - Radovich, M.

AU - Brandt, W. N.

AU - Capaccioli, M.

AU - Napolitano, N. R.

AU - Schipani, P.

PY - 2016

Y1 - 2016

N2 - Variability is characteristic of active galaxies; luminosity variations generally occur at all wavelengths, affecting both continuum and line emission, with timescales and amplitudes depending on the wavelength. We made use of optical variability to select AGNs in the VST-SUDARE survey of the COSMOS field, and confirmed 95% of them by means of multiwavelength data from overlapping surveys. The analysis returns a sample of AGN candidates with 81% purity and 15% completeness with respect to the X-ray confirmed AGNs in the field with an optical counterpart. This study provides an estimate of the reliability of the AGN selection techniques based on variability, which will be used by future wide-field surveys, such as those by LSST.

AB - Variability is characteristic of active galaxies; luminosity variations generally occur at all wavelengths, affecting both continuum and line emission, with timescales and amplitudes depending on the wavelength. We made use of optical variability to select AGNs in the VST-SUDARE survey of the COSMOS field, and confirmed 95% of them by means of multiwavelength data from overlapping surveys. The analysis returns a sample of AGN candidates with 81% purity and 15% completeness with respect to the X-ray confirmed AGNs in the field with an optical counterpart. This study provides an estimate of the reliability of the AGN selection techniques based on variability, which will be used by future wide-field surveys, such as those by LSST.

UR - http://www.scopus.com/inward/record.url?scp=84978942689&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-19330-4_42

DO - 10.1007/978-3-319-19330-4_42

M3 - Conference contribution

AN - SCOPUS:84978942689

SN - 9783319193298

VL - 42

SP - 269

EP - 274

BT - The Universe of Digital Sky Surveys - A Meeting to Honour the 70th Birthday of Massimo Capaccioli

PB - Kluwer Academic Publishers

T2 - Conference on Universe of Digital Sky Surveys, 2014

Y2 - 25 November 2014 through 28 November 2014

ER -

Variability-selected AGNs in the VST-SUDARE survey of the COSMOS field

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