7 papers
Beyond : Absolute Mass Sensitivity in Neutrino Oscillations
Gustavo F. S. Alves, André L. C. de Gouvêa, Joshua Kaler +2
Conventional wisdom says that neutrino oscillations measure only mass-squared differences and not the absolute neutrino mass scale. This is true, however, only at leading order in…
Spectrally dispersed non-redundant aperture-masking interferometry in the thermal infrared with LBTI/ALES
T. A. Stuber, J. M. Stone, J. W. Isbell +5
Non-redundant aperture-masking interferometry maximizes the angular resolution of a telescope by turning it into an interferometric array using pupil plane masks. If the interferen…
Asgard/NOTT: Cryogenic characterization of the mid-infrared chip
G. Garreau, D. Defrère, R. Laugier +25
NOTT is part of the new visitor instrument suite Asgard for the Very Large Telescope Interferometer (VLTI), and the first long-baseline nulling interferometer that will be operatio…
Interferometric Detection and Orbit Modeling of the Subcomponent in the Hot-dust System Tuc A: A Low-mass Star on an Eccentric Orbit in a Hierarchical-quintuple System
T. A. Stuber, A. Mérand, F. Kirchschlager +19
The system Tuc A is part of a hierarchical-quintuple system and is a prime target for studies of hot-exozodiacal dust, because a time-variable near-infrared excess has been de…
Close-in faint companions mimicking interferometric hot exozodiacal dust observations
Katsiaryna Tsishchankava, Florian Kirchschlager, Anton Krieger +2
Context: Interferometric observations of various nearby main-sequence stars show an unexpected infrared excess, raising the question of its origin. The two dominant interpretations…
Hot exozodiacal dust around Fomalhaut: The MATISSE perspective
Kevin Ollmann, Florian Kirchschlager, Thomas A. Stuber +6
Excess over the stellar photospheric emission of main-sequence stars has been found in interferometric near-infrared observations, and is attributed to the presence of hot exozodia…