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Automated Search of LSB Galaxies in DPOSS (CRoNaRio Project): Method and First Results from Follow-Ups

Testa, Vincenzo and Sabatini, Sabina and Scaramella, Roberto and Longo, Giuseppe and Djorgovski, S. George and Gal, Roy R. and Brunner, Robert J. and de Carvalho, Reinaldo R. (2001) Automated Search of LSB Galaxies in DPOSS (CRoNaRio Project): Method and First Results from Follow-Ups. In: Mining the Sky. Springer , Berlin, pp. 557-563. ISBN 978-3-540-42468-0.

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We developed an algorithm to search automatically for LSB galaxies in the DPOSS plate scans. The algorithm consists of three different steps in which: i) the original image is processed with a standard image analysis package (e.g. SExtractor) and normal high surface brightness objects are removed; ii) a series of filters with an exponential compensated profile are applied at different scales; iii) significance maps are pruned by selecting, for each detection, the characteristic scale and significance; iv) candidates are then trimmed by measuring them on the original image with a fit with an exponential profile. Multicolor optical follow-up with CCD has begun on some of the best candidates.

Item Type:Book Section
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URLURL TypeDescription
Longo, Giuseppe0000-0002-9182-8414
Djorgovski, S. George0000-0002-0603-3087
de Carvalho, Reinaldo R.0000-0002-1283-3363
Additional Information:© 2001 Springer-Verlag Berlin Heidelberg. First Online: 08 October 2003. The work in DPOSS at Caltech was supported by generous grants from the Norris Foundation and other private donors. We thank the past and present members of the POSS-II and DPOSS teams for their efforts. We also ackowledge the support from the Ministero dell’Università e della Ricerca Scientifica through the COFIN program.
Funding AgencyGrant Number
Kenneth T. and Eileen L. Norris FoundationUNSPECIFIED
Ministero dell’Università e della Ricerca Scientifico (MURST)UNSPECIFIED
Subject Keywords:Original Image; Surface Brightness; Stellar Population; Luminosity Function; Star Formation History
Record Number:CaltechAUTHORS:20190723-155408196
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97370
Deposited By: Tony Diaz
Deposited On:23 Jul 2019 23:01
Last Modified:16 Nov 2021 17:31

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