68 citations · 228 across the 13 of their papers we have counts for
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Detecting prolonged activity minima in binary stars. The case of Ret
M. Flores, M. Jaque Arancibia, R. V. Ibañez Bustos +7
Context. It is well known that from 1645 to 1715 solar activity was notably low and the number of sunspots was extremely reduced. This epoch is known as the Maunder Minimum (MM). T…
RAMSES II - RAMan Search for Extragalactic Symbiotic Stars. Project concept, commissioning, and early results from the science verification phase
R. Angeloni, D. R. Gonçalves, S. Akras +16
Symbiotic stars (SySts) are long-period interacting binaries composed of a hot compact star, an evolved giant star, and a tangled network of gas and dust nebulae. They represent un…
Reticuli binary system: A puzzling chromospheric activity pattern
M. Flores, C. Saffe, A. Buccino +4
We perform, for the first time, a detailed long-term activity study of the binary system Ret. We use all available HARPS spectra obtained between the years 2003 and 2016. We bu…
X-ray, UV, and optical observations of the accretion disk and boundary layer in the symbiotic star RT Cru
G. J. M. Luna, K. Mukai, J. L. Sokoloski +8
Compared to mass transfer in cataclysmic variables, the nature of accretion in symbiotic binaries in which red giants transfer material to white dwarfs (WDs) has been difficult to…
SU Lyncis, a hard X-ray bright M giant: Clues point to a large hidden population of symbiotic stars
K. Mukai, G. J. M. Luna, G. Cusumano +6
Symbiotic star surveys have traditionally relied almost exclusively on low resolution optical spectroscopy. However, we can obtain a more reliable estimate of their total Galactic…
Symbiotic stars in X-rays II: faint sources detected with XMM-Newton and Chandra
N. E. Nuñez, G. J. M. Luna, I. Pillitteri +1
We report the detection, with and XMM-, of faint, soft X-ray emission from four symbiotics stars that were not known to be X-ray sources. These four o…
The strong magnetic field of the large-amplitude beta Cephei pulsator V1449 Aql
S. Hubrig, I. Ilyin, M. Briquet +5
Only for very few beta Cephei stars has the behaviour of the magnetic field been studied over the rotation cycle. During the past two years we have obtained multi-epoch polarimetri…