2021MNRAS.501.3951C

Query : 2021MNRAS.501.3951C

2021MNRAS.501.3951C - Mon. Not. R. Astron. Soc., 501, 3951-3961 (2021/March-1)

An active galactic nucleus recognition model based on deep neural network.

CHEN B.H., GOTO T., KIM S.J., WANG T.W., SANTOS D.J.D., HO S.C.-C., HASHIMOTO T., POLISZCZUK A., POLLO A., TRIPPE S., MIYAJI T., TOBA Y., MALKAN M., SERJEANT S., PEARSON C., HWANG H.S., KIM E., SHIM H., LU T.Y., HSIAO Y.-Y., HUANG T.-C., HERRERA-ENDOQUI M., BRAVO-NAVARRO B. and MATSUHARA H.

Abstract (from CDS):

To understand the cosmic accretion history of supermassive black holes, separating the radiation from active galactic nuclei (AGNs) and star-forming galaxies (SFGs) is critical. However, a reliable solution on photometrically recognizing AGNs still remains unsolved. In this work, we present a novel AGN recognition method based on Deep Neural Network (Neural Net; NN). The main goals of this work are (i) to test if the AGN recognition problem in the North Ecliptic Pole Wide (NEPW) field could be solved by NN; (ii) to show that NN exhibits an improvement in the performance compared with the traditional, standard spectral energy distribution (SED) fitting method in our testing samples; and (iii) to publicly release a reliable AGN/SFG catalogue to the astronomical community using the best available NEPW data, and propose a better method that helps future researchers plan an advanced NEPW data base. Finally, according to our experimental result, the NN recognition accuracy is around 80.29 per cent-85.15 per cent, with AGN completeness around 85.42 per cent-88.53 per cent and SFG completeness around 81.17 per cent-85.09 per cent.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): methods: data analysis - infrared: galaxies - submillimetre: galaxies - ultraviolet: galaxies

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME NEP reg 18 00 00.000 +66 33 38.55           ~ 430 0

Query : 2021MNRAS.501.3951C

Basic data :
NAME NEP -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		18 00 00.000 +66 33 38.55 [ ] D ~
FK4 coord. (ep=B1950 eq=1950) : 		18 00 00.300 +66 33 38.48 [ ]
Gal coord. (ep=J2000) : 		096.383977 +29.811440 [ ]
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Identifiers (3) :
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NAME NEP NAME North Ecliptic Pole NAME Northern Ecliptic Pole

References (430 between 1850 and 2026) (Total 430)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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