SIMBAD references

2005AJ....130...84F - Astron. J., 130, 84-94 (2005/July-0)

Automated detection of classical novae with neural networks.

FEENEY S.M., BELOKUROV V., EVANS N.W., AN J., HEWETT P.C., BODE M., DARNLEY M., KERINS E., BAILLON P., CARR B.J., PAULIN-HENRIKSSON S. and GOULD A.

Abstract (from CDS):

The POINT-AGAPE collaboration surveyed M31 with the primary goal of optical detection of microlensing events, yet its data catalog is also a prime source of light curves of variable and transient objects, including classical novae (CNe). A reliable means of identification, combined with a thorough survey of the variable objects in M31, provides an excellent opportunity to locate and study an entire galactic population of CNe. This paper presents a set of 440 neural networks, working in 44 committees, designed specifically to identify fast CNe. The networks are developed using training sets consisting of simulated novae and POINT-AGAPE light curves in a novel variation on K-fold cross validation and use the binned, normalized power spectra of the light curves as input units. The networks successfully identify 9 of the 13 previously identified M31 CNe within their optimal working range (and 11 out of 13 if the network error bars are taken into account). The networks provide a catalogue of 19 new candidate fast CNe, of which four are strongly favored.

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Journal keyword(s): Galaxies: Individual: Messier Number: M31 - Methods: Numerical - Stars: Novae, Cataclysmic Variables - Stars: Variables: Other

Simbad objects: 45

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