{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T12:24:59Z","timestamp":1740140699604,"version":"3.37.3"},"reference-count":7,"publisher":"IOP Publishing","issue":"1","license":[{"start":{"date-parts":[[2019,7,1]],"date-time":"2019-07-01T00:00:00Z","timestamp":1561939200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"},{"start":{"date-parts":[[2019,7,1]],"date-time":"2019-07-01T00:00:00Z","timestamp":1561939200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Phys.: Conf. Ser."],"published-print":{"date-parts":[[2019,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Two unified models of dark matter (DM) and dark energy (DE) are analysed, namely the Generalized Chaplygin Gas and the Modified Chaplygin Gas models. We study the qualitative behaviour of gravitational perturbations in both models, analysing their dynamical systems which describe the linear density perturbations, and graphically show the wavenumber, or k-dependence of the solutions. Finally we compare the two models and try to conclude which of them is close to available observations.<\/jats:p>","DOI":"10.1088\/1742-6596\/1269\/1\/012016","type":"journal-article","created":{"date-parts":[[2019,8,1]],"date-time":"2019-08-01T14:13:36Z","timestamp":1564668816000},"page":"012016","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Qualitative behaviour of gravitational perturbations in Chaplygin Gas - Unifying Dark Matter and Dark Energy"],"prefix":"10.1088","volume":"1269","author":[{"given":"Abdeldjalil","family":"Zaidi","sequence":"first","affiliation":[]},{"given":"J.P.M.","family":"de Carvalho","sequence":"additional","affiliation":[]},{"given":"R.A.A.","family":"Fernandes","sequence":"additional","affiliation":[]}],"member":"266","reference":[{"key":"JPCS_1269_1_012016bib1","doi-asserted-by":"crossref","first-page":"265","DOI":"10.1016\/S0370-2693(01)00571-8","volume":"511","author":"Kamenshchik","year":"2001","journal-title":"Physics letter B"},{"key":"JPCS_1269_1_012016bib2","volume":"66","author":"Bento","year":"2002","journal-title":"Physic review D"},{"key":"JPCS_1269_1_012016bib3","volume":"69","author":"Avelino","year":"2004","journal-title":"Physic Review D"},{"key":"JPCS_1269_1_012016bib4","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1086\/169457","volume":"365","author":"Veeraraghavan","year":"1990","journal-title":"The Astrophisical Journal"},{"year":"1973","author":"Arnold","key":"JPCS_1269_1_012016bib5"},{"journal-title":"Accelerated Universe from Modified Chaplygin Gas and Tachyonic Fluid","year":"2002","author":"Benaoum","key":"JPCS_1269_1_012016bib6"},{"key":"JPCS_1269_1_012016bib7","first-page":"677","volume":"353","author":"Kahya","year":"2014","journal-title":"Observational constraints on the extended Chaplygin gas inflation, Astrophys Space Sci"}],"container-title":["Journal of Physics: Conference Series"],"original-title":[],"link":[{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016","content-type":"text\/html","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,11,18]],"date-time":"2021-11-18T17:46:25Z","timestamp":1637257585000},"score":1,"resource":{"primary":{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/1269\/1\/012016"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,7,1]]},"references-count":7,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2019,7,1]]}},"URL":"https:\/\/doi.org\/10.1088\/1742-6596\/1269\/1\/012016","relation":{},"ISSN":["1742-6588","1742-6596"],"issn-type":[{"type":"print","value":"1742-6588"},{"type":"electronic","value":"1742-6596"}],"subject":[],"published":{"date-parts":[[2019,7,1]]},"assertion":[{"value":"Qualitative behaviour of gravitational perturbations in Chaplygin Gas - Unifying Dark Matter and Dark Energy","name":"article_title","label":"Article Title"},{"value":"Journal of Physics: Conference Series","name":"journal_title","label":"Journal Title"},{"value":"paper","name":"article_type","label":"Article Type"},{"value":"Published under licence by IOP Publishing Ltd","name":"copyright_information","label":"Copyright Information"},{"name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}