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A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at redshift z ∼ 0.4

Identificadores del recurso

Monthly Notices of the Royal Astronomical Society 485(2): 1528–1545(2019)

0035-8711

https://academic.oup.com/mnras/article-abstract/485/2/1528/5315798

http://hdl.handle.net/20.500.12666/391

10.1093/mnras/stz427

1365-2966

Procedencia

(Digital.INTA - Repositorio institucional del INTA)

Ficha

Título:: A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at redshift z ∼ 0.4
Tema:: ZwCl0024+1652; Galaxy clsuter; Galaxies; Morphology; Early Type; Late Type; GALSVM; Morphological fraction
Descripción:: The well-known cluster of galaxies ZwCl0024+1652 at z ∼ 0.4 lacks an in-depth morphological classification of its central region. While previous studies provide a visual classification of a patched area, we used the public code called galaxy Support Vector Machine (GALSVM) and HST/ACS data as well as the WFP2 master catalogue to automatically classify all cluster members up to 1 Mpc. GALSVM analyses galaxy morphologies through support vector machine (SVM). From the 231 cluster galaxies, we classified 97 as early types (ETs) and 83 as late types (LTs). The remaining 51 stayed unclassified (or undecided). By cross-matching our results with the existing visual classification, we found an agreement of 81 per cent. In addition to previous Zwcl0024 morphological classifications, 121 of our galaxies were classified for the first time in this work. In addition, we tested the location of classified galaxies on the standard morphological diagrams, colour–colour and colour–magnitude diagrams. Out of all cluster members, ∼20 per cent are emission-line galaxies, taking into account previous GLACE results. We have verified that the ET fraction is slightly higher near the cluster core and decreases with the clustercentric distance, while the opposite trend has been observed for LT galaxies. We found a higher fraction of ETs (54 per cent) than LTs (46 per cent) throughout the analysed central region, as expected. In addition, we analysed the correlation between the five morphological parameters (Abraham concentration, Bershady–Concelice concentration, asymmetry, Gini, and M20 moment of light) and the clustercentric distance, without finding a clear trend. Finally, as a result of our work, the morphological catalogue of 231 galaxies containing all the measured parameters and the final classification is available in the electronic form of this paper.; We acknowledge the anonymous referee for helpful comments and valuable suggestions that have significantly contributed to improve the paper. We also thank the Ethiopian Space Science and Technology Institute (ESSTI) under the Ethiopian Ministry of Innovation and Technology (MOIT) for all the financial and technical support. ZBA specially acknowledges Joint ALMA Observatory (JAO); ESO -ALMA at Santiago, Chile for giving financial support and working space while working with M. Sanchez-Portal on the first phase of the paper. Moreover ZBA acknowledges Kotebe Metropolitan University for granting a study leave and giving material support. MP and SBT acknowledge financial support from the Ethiopian Space Science and Technology Institute (ESSTI) under the Ethiopian Ministry of Innovation and Technology (MoIT). MP also acknowledges support from the Spanish MINECO under projects AYA2013-42227-P and AYA2016-76682-C3-1-P, and from the State Agency for Research of the Spanish MCIU through the >Center of Excellence Severo Ochoa> award for the Instituto de Astrofisica de Andalucia (SEV-2017-0709). In this work, we made use of the Virtual Observatory Tool for OPerations on Catalogues And Tables (TOPCAT) and IRAF. iraf is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation. We also used ACS/HST data based on observations made with the NASA/ESA HST, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data centre (CADC/NRC/CSA). This work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) under the grants AYA2014 - 58861 - C3 - 2-P, AYA2014 - 58861 - C3 - 3 - P, AYA2017 - 88007 - C3 - 1 - P, and AYA2017 - 88007 - C3 - 2 -P.; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737).; Peer review
Idioma:: English
Relación:: info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MINECO/AYA2016-76682-C3-1-P/ES/AGN, DEL UNIVERSO LOCAL A DISTANCIAS COSMOLOGICAS. DEL MOTOR CENTRAL A LA GALAXIA ANFITRIONA Y SU ENTORNO/; info:eu-repo/grantAgreement/ES/MINECO/AYA2013-42227-P; info:eu-repo/grantAgreement/MINECO//AYA2014-58861-C3-2-P/ES/EVOLUCION DE GALAXIAS: CUASARES/; info:eu-repo/grantAgreement/MINECO//AYA2014-58861-C3-3-P/ES/EVOLUCION DE GALAXIAS EN CUMULOS/; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-88007-C3-1-P/ES/EVOLUCION DE GALAXIAS/; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-88007-C3-2-P/ES/EVOLUCION DE GALAXIAS EN CUMULOS/
Autor/Productor:: Beyoro Amado, Z.; Povic, M.; Sánchez Portal, M.; Tessema, S. B.; Bongiovanni, Á.; Cepa, J.; Cerviño, M.; González Serrano, J. I.; Nadolny, J.; Pérez García, A. M.; Pérez Martínez, R.; Pintos Castro, I.
Editor:: Oxford Academics: Oxford University Press
Otros colaboradores/productores:: Centros de Excelencia Severo Ochoa, INSTITUTO DE ASTROFISICA DE ANDALUCIA (IAA), SEV-2017-0709; Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737; Bongiovanni, Á. [0000-0002-3557-3234]; Povic, M. [0000-0002-9766-6110]; Pérez García, A. M. [0000-0003-1634-3588]; Pérez Martínez, R. [0000-0002-9127-5522]; Pintos Castro, I. [0000-0002-9133-4457]; Ministerio de Economía y Competitividad (MINECO); Agencia Estatal de Investigación (AEI)
Derechos:: Attribution-NonCommercial-NoDerivatives 4.0 International; Copyright © 2019, Oxford University Press; https://creativecommons.org/licenses/by-nc-nd/4.0/; info:eu-repo/semantics/openAccess
Fecha:: 2021-04-14T13:33:59Z; 2019-02-11
Tipo de recurso:: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; http://purl.org/coar/resource_type/c_6501
Formato:: application/pdf

oai_dc

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1. < dc:title > A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at redshift z ∼ 0.4 </ dc:title >
2. < dc:creator > Beyoro Amado, Z. </ dc:creator >
3. < dc:creator > Povic, M. </ dc:creator >
4. < dc:creator > Sánchez Portal, M. </ dc:creator >
5. < dc:creator > Tessema, S. B. </ dc:creator >
6. < dc:creator > Bongiovanni, Á. </ dc:creator >
7. < dc:creator > Cepa, J. </ dc:creator >
8. < dc:creator > Cerviño, M. </ dc:creator >
9. < dc:creator > González Serrano, J. I. </ dc:creator >
10. < dc:creator > Nadolny, J. </ dc:creator >
11. < dc:creator > Pérez García, A. M. </ dc:creator >
12. < dc:creator > Pérez Martínez, R. </ dc:creator >
13. < dc:creator > Pintos Castro, I. </ dc:creator >
14. < dc:contributor > Centros de Excelencia Severo Ochoa, INSTITUTO DE ASTROFISICA DE ANDALUCIA (IAA), SEV-2017-0709 </ dc:contributor >
15. < dc:contributor > Unidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737 </ dc:contributor >
16. < dc:contributor > Bongiovanni, Á. [0000-0002-3557-3234] </ dc:contributor >
17. < dc:contributor > Povic, M. [0000-0002-9766-6110] </ dc:contributor >
18. < dc:contributor > Pérez García, A. M. [0000-0003-1634-3588] </ dc:contributor >
19. < dc:contributor > Pérez Martínez, R. [0000-0002-9127-5522] </ dc:contributor >
20. < dc:contributor > Pintos Castro, I. [0000-0002-9133-4457] </ dc:contributor >
21. < dc:contributor > Ministerio de Economía y Competitividad (MINECO) </ dc:contributor >
22. < dc:contributor > Agencia Estatal de Investigación (AEI) </ dc:contributor >
23. < dc:subject > ZwCl0024+1652 </ dc:subject >
24. < dc:subject > Galaxy clsuter </ dc:subject >
25. < dc:subject > Galaxies </ dc:subject >
26. < dc:subject > Morphology </ dc:subject >
27. < dc:subject > Early Type </ dc:subject >
28. < dc:subject > Late Type </ dc:subject >
29. < dc:subject > GALSVM </ dc:subject >
30. < dc:subject > Morphological fraction </ dc:subject >
31. < dc:description > The well-known cluster of galaxies ZwCl0024+1652 at z ∼ 0.4 lacks an in-depth morphological classification of its central region. While previous studies provide a visual classification of a patched area, we used the public code called galaxy Support Vector Machine (GALSVM) and HST/ACS data as well as the WFP2 master catalogue to automatically classify all cluster members up to 1 Mpc. GALSVM analyses galaxy morphologies through support vector machine (SVM). From the 231 cluster galaxies, we classified 97 as early types (ETs) and 83 as late types (LTs). The remaining 51 stayed unclassified (or undecided). By cross-matching our results with the existing visual classification, we found an agreement of 81 per cent. In addition to previous Zwcl0024 morphological classifications, 121 of our galaxies were classified for the first time in this work. In addition, we tested the location of classified galaxies on the standard morphological diagrams, colour–colour and colour–magnitude diagrams. Out of all cluster members, ∼20 per cent are emission-line galaxies, taking into account previous GLACE results. We have verified that the ET fraction is slightly higher near the cluster core and decreases with the clustercentric distance, while the opposite trend has been observed for LT galaxies. We found a higher fraction of ETs (54 per cent) than LTs (46 per cent) throughout the analysed central region, as expected. In addition, we analysed the correlation between the five morphological parameters (Abraham concentration, Bershady–Concelice concentration, asymmetry, Gini, and M20 moment of light) and the clustercentric distance, without finding a clear trend. Finally, as a result of our work, the morphological catalogue of 231 galaxies containing all the measured parameters and the final classification is available in the electronic form of this paper. </ dc:description >
32. < dc:description > We acknowledge the anonymous referee for helpful comments and valuable suggestions that have significantly contributed to improve the paper. We also thank the Ethiopian Space Science and Technology Institute (ESSTI) under the Ethiopian Ministry of Innovation and Technology (MOIT) for all the financial and technical support. ZBA specially acknowledges Joint ALMA Observatory (JAO); ESO -ALMA at Santiago, Chile for giving financial support and working space while working with M. Sanchez-Portal on the first phase of the paper. Moreover ZBA acknowledges Kotebe Metropolitan University for granting a study leave and giving material support. MP and SBT acknowledge financial support from the Ethiopian Space Science and Technology Institute (ESSTI) under the Ethiopian Ministry of Innovation and Technology (MoIT). MP also acknowledges support from the Spanish MINECO under projects AYA2013-42227-P and AYA2016-76682-C3-1-P, and from the State Agency for Research of the Spanish MCIU through the >Center of Excellence Severo Ochoa> award for the Instituto de Astrofisica de Andalucia (SEV-2017-0709). In this work, we made use of the Virtual Observatory Tool for OPerations on Catalogues And Tables (TOPCAT) and IRAF. iraf is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation. We also used ACS/HST data based on observations made with the NASA/ESA HST, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data centre (CADC/NRC/CSA). This work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) under the grants AYA2014 - 58861 - C3 - 2-P, AYA2014 - 58861 - C3 - 3 - P, AYA2017 - 88007 - C3 - 1 - P, and AYA2017 - 88007 - C3 - 2 -P.; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737). </ dc:description >
33. < dc:description > Peer review </ dc:description >
34. < dc:date > 2021-04-14T13:33:59Z </ dc:date >
35. < dc:date > 2021-04-14T13:33:59Z </ dc:date >
36. < dc:date > 2019-02-11 </ dc:date >
37. < dc:type > info:eu-repo/semantics/article </ dc:type >
38. < dc:type > info:eu-repo/semantics/publishedVersion </ dc:type >
39. < dc:type > http://purl.org/coar/resource_type/c_6501 </ dc:type >
40. < dc:identifier > Monthly Notices of the Royal Astronomical Society 485(2): 1528–1545(2019) </ dc:identifier >
41. < dc:identifier > 0035-8711 </ dc:identifier >
42. < dc:identifier > https://academic.oup.com/mnras/article-abstract/485/2/1528/5315798 </ dc:identifier >
43. < dc:identifier > http://hdl.handle.net/20.500.12666/391 </ dc:identifier >
44. < dc:identifier > 10.1093/mnras/stz427 </ dc:identifier >
45. < dc:identifier > 1365-2966 </ dc:identifier >
46. < dc:language > eng </ dc:language >
47. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MINECO/AYA2016-76682-C3-1-P/ES/AGN, DEL UNIVERSO LOCAL A DISTANCIAS COSMOLOGICAS. DEL MOTOR CENTRAL A LA GALAXIA ANFITRIONA Y SU ENTORNO/ </ dc:relation >
48. < dc:relation > info:eu-repo/grantAgreement/ES/MINECO/AYA2013-42227-P </ dc:relation >
49. < dc:relation > info:eu-repo/grantAgreement/MINECO//AYA2014-58861-C3-2-P/ES/EVOLUCION DE GALAXIAS: CUASARES/ </ dc:relation >
50. < dc:relation > info:eu-repo/grantAgreement/MINECO//AYA2014-58861-C3-3-P/ES/EVOLUCION DE GALAXIAS EN CUMULOS/ </ dc:relation >
51. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-88007-C3-1-P/ES/EVOLUCION DE GALAXIAS/ </ dc:relation >
52. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-88007-C3-2-P/ES/EVOLUCION DE GALAXIAS EN CUMULOS/ </ dc:relation >
53. < dc:rights > Attribution-NonCommercial-NoDerivatives 4.0 International </ dc:rights >
54. < dc:rights > Copyright © 2019, Oxford University Press </ dc:rights >
55. < dc:rights > https://creativecommons.org/licenses/by-nc-nd/4.0/ </ dc:rights >
56. < dc:rights > info:eu-repo/semantics/openAccess </ dc:rights >
57. < dc:format > application/pdf </ dc:format >
58. < dc:publisher > Oxford Academics: Oxford University Press </ dc:publisher >
</ oai_dc:dc >