TY  - JOUR
A1  - Campos, Fabiola
A1  - Pelisoli, Ingrid Domingos
A1  - Kamann, Sebastian
A1  - Husser, T. -O.
A1  - Dreizler, S.
A1  - Bellini, A.
A1  - Robinson, E. L.
A1  - Nardiello, Domenico
A1  - Piotto, G.
A1  - Kepler, S. O.
A1  - Istrate, A. G.
A1  - Winget, D. E.
A1  - Montgomery, M. H.
A1  - Dotter, A.
T1  - Outliers
BT  - multicolour photometry guiding the search for evolved binary systems in the globular cluster 47 Tucanae
JF  - Monthly notices of the Royal Astronomical Society
N2  - We use Hubble Space Telescope multicolour photometry of the globular cluster 47 Tucanae to uncover a population of 24 objects with no previous classification that are outliers from the single-star model tracks in the colour-magnitude diagram and yet are likely cluster members. By comparing those sources with evolutionary models and X-ray source catalogues, we were able to show that the majority of those sources are likely binary systems that do not have any X-ray source detected nearby, most possibly formed by a white dwarf and a main-sequence star and a small number of possible double-degenerate systems.
KW  - binaries: general
KW  - Hertzsprung-Russell and colour-magnitude diagrams
KW  - white dwarfs
KW  - globular clusters: individual: 47 Tuc
Y1  - 2018
U6  - https://doi.org/10.1093/mnras/sty2591
SN  - 0035-8711
SN  - 1365-2966
VL  - 481
IS  - 4
SP  - 4397
EP  - 4409
PB  - Oxford Univ. Press
CY  - Oxford
ER  -