{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,21]],"date-time":"2026-03-21T05:25:47Z","timestamp":1774070747126,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,12,7]],"date-time":"2021-12-07T00:00:00Z","timestamp":1638835200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDP\/04106\/2020"],"award-info":[{"award-number":["UIDP\/04106\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/04106\/2020"],"award-info":[{"award-number":["UIDB\/04106\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["PTDC\/FIS-OUT\/28407\/2017"],"award-info":[{"award-number":["PTDC\/FIS-OUT\/28407\/2017"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["PTDC\/FIS-AST\/3041\/2020"],"award-info":[{"award-number":["PTDC\/FIS-AST\/3041\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["PD\/BD\/142842\/2018"],"award-info":[{"award-number":["PD\/BD\/142842\/2018"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["CERN\/FIS-PAR\/0027\/2019"],"award-info":[{"award-number":["CERN\/FIS-PAR\/0027\/2019"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000780","name":"European Union","doi-asserted-by":"publisher","award":["H2020-MSCA-RISE-2017 Grant No.~FunFiCO-777740"],"award-info":[{"award-number":["H2020-MSCA-RISE-2017 Grant No.~FunFiCO-777740"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Universe"],"abstract":"<jats:p>The general relativity vacuum black holes (BHs) can be scalarised in models where a scalar field non-minimally couples to the Gauss-Bonnet (GB) invariant. Such GB scalarisation comes in two flavours, depending on the GB sign that triggers the phenomenon. Hereafter these two cases are termed GB\u00b1 scalarisation. For vacuum BHs, only GB+ scalarisation is possible in the static case, while GB\u2212 scalarisation is spin induced. But for electrovacuum BHs, GB\u2212 is also charged induced. We discuss the GB\u2212 scalarisation of Reissner-Nordstr\u00f6m and Kerr-Newman BHs, discussing zero modes and constructing fully non-linear solutions. Some comparisons with GB+ scalarisation are given. To assess the generality of the observed features, we also briefly consider the GB\u00b1 scalarisation of stringy dilatonic BHs and coloured BHs which provide qualitative differences with respect to the electrovacuum case, namely on the distribution and existence of regions triggering GB\u2212 scalarisation.<\/jats:p>","DOI":"10.3390\/universe7120483","type":"journal-article","created":{"date-parts":[[2021,12,7]],"date-time":"2021-12-07T20:23:21Z","timestamp":1638908601000},"page":"483","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Aspects of Gauss-Bonnet Scalarisation of Charged Black Holes"],"prefix":"10.3390","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9619-2013","authenticated-orcid":false,"given":"Carlos A. R.","family":"Herdeiro","sequence":"first","affiliation":[{"name":"Departamento de Matem\u00e1tica da Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications (CIDMA), Campus de Santiago, 3810-183 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5815-2758","authenticated-orcid":false,"given":"Alexandre M.","family":"Pombo","sequence":"additional","affiliation":[{"name":"Departamento de Matem\u00e1tica da Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications (CIDMA), Campus de Santiago, 3810-183 Aveiro, Portugal"}]},{"given":"Eugen","family":"Radu","sequence":"additional","affiliation":[{"name":"Departamento de Matem\u00e1tica da Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications (CIDMA), Campus de Santiago, 3810-183 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2220","DOI":"10.1103\/PhysRevLett.70.2220","article-title":"Nonperturbative strong field effects in tensor\u2014Scalar theories of gravitation","volume":"70","author":"Damour","year":"1993","journal-title":"Phys. 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