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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Exploratory Spectroscopy of Magnetic Cataclysmic Variables Candidates and Other Variable Objects. II

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Autor(es):
Oliveira, A. S. [1] ; Rodrigues, C. V. [2] ; Martins, M. [1] ; Palhares, M. S. [1] ; Silva, K. M. G. [3, 4] ; Lima, I. J. [2, 5] ; Jablonski, F. J. [2]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Vale Paraiba, IP&D, BR-12244000 Sao Jose Dos Campos, SP - Brazil
[2] Inst Nacl Pesquisas Espaciais, Div Astrofis, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[3] European Southern Observ, Alonso Cordova 3107, Santiago - Chile
[4] Gemini Observ, Casilla 603, La Serena - Chile
[5] Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 - USA
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: ASTRONOMICAL JOURNAL; v. 159, n. 3 MAR 2020.
Citações Web of Science: 0
Resumo

This is the second paper of a series presenting our search for magnetic cataclysmic variables (mCVs) among candidates selected mostly from the Catalina Real-Time Transient Survey. We present the identification spectra, obtained at the SOAR Telescope, as well as magnitudes and Gaia distances for 45 objects. Of these, 39 objects are identified as CVs, from which 8 targets show observational characteristics of mCVs, being 7 polars and 1 intermediate polar. The remaining 31 CVs in our sample are probably non-magnetic systems, in low (22 systems) or high (9 systems) accretion states. Six targets of the sample are not CVs (5 active galactic nuclei and 1 T Tauri star). Among the 8 objects with mCV spectra, 6 are new classifications. Three polars were observed in low accretion state, either revealing photospheric features of the secondary star and allowing the estimation of their spectral type, or presenting Hi3 Zeeman components associated to the white dwarf (WD) magnetic field. In addition to the results obtained in the first paper of the series, and depending on the confirmation of these classifications by observational follow-up, our results would increase the sample of known polars by about 9%. (AU)

Processo FAPESP: 18/05420-1 - Acreção magnética em variáveis cataclísmicas: os objetos do tipo SW~Sextantis e busca por novos candidatos
Beneficiário:Isabel de Jesus Lima
Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Processo FAPESP: 13/26258-4 - Matéria superdensa no universo
Beneficiário:Manuel Máximo Bastos Malheiro de Oliveira
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 17/20309-7 - Descoberta e caracterização de novas variáveis cataclísmicas magnéticas
Beneficiário:Alexandre Soares de Oliveira
Modalidade de apoio: Auxílio à Pesquisa - Regular