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Gaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates

dc.contributor.authorTremblay, P. E.
dc.contributor.authorHollands, M.
dc.contributor.authorIzquierdo Tugas, Pere
dc.contributor.authorGänsicke, Boris T.
dc.contributor.authorKoester, D.
dc.contributor.authorBrown, W J
dc.contributor.authorHermes, J. J.
dc.contributor.authorKleinman, Scot J.
dc.contributor.authorManser, C. J.
dc.contributor.authorMarsh, Thomas R.
dc.contributor.authorSchreiber, Mathias R.
dc.contributor.authorSilvotti, R.
dc.contributor.authorRebassa Mansergas, Alberto
dc.contributor.authorRaddi, Roberto
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2021-01-14T09:29:36Z
dc.date.available2021-01-14T09:29:36Z
dc.date.issued2020-09-01
dc.identifier.citationTremblay, P. [et al.]. Gaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates. "Monthly notices of the Royal Astronomical Society", 1 Setembre 2020, vol. 497, núm. 1, p. 130-145.
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/2117/335315
dc.description.abstractWe present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were selected from Gaia Data Release 2 (DR2) and in almost all cases, had no prior spectroscopic classifications. We find a total of 191 confirmed white dwarfs and 39 main-sequence star contaminants. The majority of stellar remnants in the sample are relatively cool (Teff = 6200 K), showing either hydrogen Balmer lines or a featureless spectrum, corresponding to 89 DA and 76 DC white dwarfs, respectively. We also recover two DBA white dwarfs and 9–10 magnetic remnants. We find two carbon-bearing DQ stars and 14 new metal-rich white dwarfs
dc.description.sponsorshipThe research leading to these results has received funding from the European Research Council under the European Union’s Horizon 2020 research and innovation programme no. 677706 (WD3D). This article is based on observations made in the Observatorios de Canarias del IAC with the WHT operated on the island of La Palma by the Isaac Newton Group of Telescopes in the Observatorio del Roque de los Muchachos. Based on observations made with the Gran Telescopio Canarias (GTC), installed at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrof´ısica de Canarias, in the island of La Palma. This work presents results from the European Space Agency (ESA) space mission Gaia. Gaia data are being processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC is provided by national institutions, in particular the institutions participating in the Gaia MultiLateral Agreement (MLA). BTG was supported by the UK STFC grants ST/P000495 and ST/T000406/1. ARM acknowledges support from the MINECO under the Ramon y Cajal ´ programme (RYC-2016-20254), the AYA2017-86274-P grant, and the AGAUR grant SGR-661/2017. MRS thanks for support from Fondecyt (grant 1181404). DdM acknowledges financial support from 0:funding-source 3:href="http://dx.doi.org/10.13039/501100 003981"ASI/0:funding-source-INAF I/037/12/0 and ASI-INAF no. 2017-14-H.0 and from INAF “INAF main streams”, Presidential Decree 43/2018. RR has received funding from the postdoctoral fellowship programme Beatriu de Pinos, funded by the Secretary ´ of Universities and Research (Government of Catalonia) and by the Horizon 2020 programme of research and innovation of the European Union under the Maria Skłodowska-Curie grant agreement no. 801370.
dc.format.extent16 p.
dc.language.isoeng
dc.publisherOxford University Press
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subject.lcshWhite dwarf stars
dc.subject.otherStars: statistics
dc.subject.otherWhite dwarfs
dc.subject.otherSolar neighbourhood
dc.titleGaia white dwarfs within 40 pc – I. Spectroscopic observations of new candidates
dc.typeArticle
dc.subject.lemacNanes blanques
dc.contributor.groupUniversitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica
dc.identifier.doi10.1093/mnras/staa1892
dc.rights.accessOpen Access
local.identifier.drac29695259
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/677706/EU/Evolution of white dwarfs with 3D model atmospheres/WD3D
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/801370/EU/Beatriu de Pinos-3 Postdoctoral Programme/BP3
dc.relation.projectid2016
dc.contributor.covenanteeUniversity of Warwick
dc.contributor.covenanteeUniversidad de La Laguna
dc.contributor.covenanteeUniversitat Christian Albrecht de Kiel
local.citation.authorTremblay, P.; Hollands, M.; Izquierdo, P.; Gänsicke, B. T.; Koester, D.; Brown, W.; Hermes, J.; Kleinman, S.J; Manser, C.; Marsh, T.R.; Schreiber, M. R.; Silvotti, R.; Rebassa, A.; Raddi, R.
local.citation.publicationNameMonthly notices of the Royal Astronomical Society
local.citation.volume497
local.citation.number1
local.citation.startingPage130
local.citation.endingPage145


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