519 citations · 1.1k across the 16 of their papers we have counts for
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MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy
P. Royer, T. Merle, K. Dsilva +71
Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a given object or a given spec…
The orbits of subdwarf B + main-sequence binaries. I: The sdB+G0 system PG 1104+243
J. Vos, R. H. Östensen, P. Degroote +18
The predicted orbital period histogram of an sdB population is bimodal with a peak at short (< 10 days) and long (> 250 days) periods. Observationally, there are many short-period…
Observational evidence for composite grains in an AGB outflow: MgS in the extreme carbon star LL Peg
R. Lombaert, B. L. de Vries, A. de Koter +5
The broad 30 μm feature in carbon stars is commonly attributed to MgS dust particles. However, reproducing the 30 μm feature with homogeneous MgS grains would require much more sul…
Discovery of a TiO emission band in the infrared spectrum of the S star NP Aurigae
K. Smolders, T. Verhoelst, P. Neyskens +10
We report on the discovery of an infrared emission band in the Spitzer spectrum of the S-type AGB star NP Aurigae that is caused by TiO molecules in the circumstellar environment.…
Herschel images of Fomalhaut. An extrasolar Kuiper Belt at the height of its dynamical activity
B. Acke, M. Min, C. Dominik +33
Fomalhaut is a young, nearby star that is suspected to harbor an infant planetary system, interspersed with one or more belts of dusty debris. We present far-infrared images obtain…
The Spitzer Spectroscopic Survey of S-type Stars
K. Smolders, P. Neyskens, J. A. D. L. Blommaert +28
S-type AGB stars are thought to be in the transitional phase between M-type and C-type AGB stars. Because of their peculiar chemical composition, one may expect a strong influence…
CoRoT observations of O stars: diverse origins of variability
R. Blomme, M. Briquet, P. Degroote +26
Six O-type stars were observed continuously by the CoRoT satellite during a 34.3-day run. The unprecedented quality of the data allows us to detect even low-amplitude stellar pulsa…
Binaries discovered by the MUCHFUSS project SDSS J08205+0008 - An eclipsing subdwarf B binary with brown dwarf companion
S. Geier, V. Schaffenroth, H. Drechsel +11
Hot subdwarf B stars (sdBs) are extreme horizontal branch stars believed to originate from close binary evolution. Indeed about half of the known sdB stars are found in close binar…
J08069+1527: A newly discovered high amplitude, hybrid subdwarf B pulsator
A. S. Baran, J. T. Gilker, M. D. Reed +5
We present our discovery of a new hybrid pulsating subdwarf B star, J08069+1527. The effective temperature and surface gravity of 28,500400\,K and 5.370.04\,dex, respecti…
An asteroseismic study of the O9V star HD 46202 from CoRoT space-based photometry
M. Briquet, C. Aerts, A. Baglin +13
The O9V star HD 46202, which is a member of the young open cluster NGC 2244, was observed by the CoRoT satellite in October/November 2008 during a short run of 34 days. From the ve…
CoRoT high-precision photometry of the B0.5 IV star HD 51756
P. I. Pápics, M. Briquet, M. Auvergne +13
OB stars are important constituents for the ecology of the Universe, and there are only a few studies on their pulsational properties detailed enough to provide important feedback…
Detection of frequency spacings in the young O-type binary HD 46149 from CoRoT photometry
P. Degroote, M. Briquet, M. Auvergne +15
Using the CoRoT space based photometry of the O-type binary HD46149, stellar atmospheric effects related to rotation can be separated from pulsations, because they leave distinct s…
When an old star smolders: On the detection of hydrocarbon emission from S-type AGB stars
K. Smolders, B. Acke, T. Verhoelst +8
Polycyclic aromatic hydrocarbons (PAHs) produce characteristic infrared emission bands that have been observed in a wide range of astrophysical environments, where carbonaceous mat…
Periodic mass loss episodes due to an oscillation mode with variable amplitude in the hot supergiant HD50064
C. Aerts, K. Lefever, A. Baglin +15
We aim to interpret the photometric and spectroscopic variability of the luminous blue variable supergiant HD\,50064 ().CoRoT space photometry and follow-up high-resolution…
An ISO/SWS study of the dust composition around S stars
S. Hony, A. M. Heras, F. J. Molster +1
We investigate the composition of the solid-state materials in the winds around S-type AGB stars. The S stars produce dust in their wind that bears a resemblance to the dust produc…