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99 papers · 1 filter
The 5 Gyr evolution of sub-M* galaxies
Karen Disseau, Mathieu Puech, François Hammer +3
We gathered two complete samples of () galaxies, which are representative of the present-day galaxies and their counterparts at 5 Gyr a…
Standing on the shoulders of Dwarfs: the Kepler asteroseismic LEGACY sample II - radii, masses, and ages
Victor Silva Aguirre, Mikkel N. Lund, H. M. Antia +21
We use asteroseismic data from the Kepler satellite to determine fundamental stellar properties of the 66 main-sequence targets observed for at least one full year by the mission.…
The evolution of hydrocarbon dust grains in the interstellar medium and its influence on the infrared spectra of dust
M. S. Murga, S. A. Khoperskov, D. S. Wiebe
We present evolutionary calculations for the size and aromatization degree distributions of interstellar dust grains, driven by their destruction by radiation, collisions with gas…
Measuring Diffuse Interstellar Bands with cool stars. An improved line list to model the background stellar spectra
A. Monreal-Ibero, R. Lallement
DIBs are ubiquitous in stellar spectra. Traditionally, they have been studied through their extraction from hot stars, because of their smooth continuum. In an era where there are…
Constraining the dark matter content of NGC 1291 using hydrodynamic gas response simulations
F. Fragkoudi, E. Athanassoula, A. Bosma
We present a pilot study on the nearby massive barred galaxy NGC 1291, in which we use dynamical modelling to constrain the disc mass-to-light ratio (M/L), thus breaking the degene…
Stability of the interstellar hydrogen inflow longitude from 20 years of SOHO/SWAN observations
Dimitra Koutroumpa, Eric Quémerais, Olga Katushkina +3
Aims. A recent debate on the decade-long stability of the interstellar He flow vector, and in particular the flow longitude, has prompted us to check for any variability in the int…