Showing 2019 · astro-ph.GAShow all

5 papers · 2 filters

astro-ph.GA2019★ 31 cited

The dark matter component of the Gaia radially anisotropic substructure

Nassim Bozorgnia, Azadeh Fattahi, Carlos S. Frenk +5

We study the properties of the dark matter component of the radially anisotropic stellar population recently identified in the Gaia data, using magneto-hydrodynamical simulations o…

astro-ph.GA2019★ 24 cited

Chlorine-bearing molecules in molecular absorbers at intermediate redshifts

S. H. J. Wallstrom, S. Muller, E. Roueff +3

We use observations of chlorine-bearing species in molecular absorbers at intermediate redshifts to investigate chemical properties and Cl/Cl isotopic ratios in the a…

astro-ph.GA2019★ 83 cited

Metallicity of stars formed throughout the cosmic history based on the observational properties of star forming galaxies

Martyna Chruslinska, Gijs Nelemans

Metallicity is one of the crucial factors that determine stellar evolution. To characterize the properties of stellar populations one needs to know the fraction of stars forming at…

astro-ph.GA2019★ 60 cited

Polarization of changing-look quasars

D. Hutsemékers, B. Agís González, F. Marin +3

If the disappearance of the broad emission lines observed in changing-look quasars originates from the obscuration of the quasar core by dusty clouds moving in the torus, high line…

astro-ph.GA2019★ 31 cited

The VLT-FLAMES Tarantula Survey: XXXI. Radial velocities and multiplicity constraints of red supergiant stars in 30 Doradus

L. R. Patrick, D. J. Lennon, N. Britavskiy +10

The incidence of multiplicity in cool, luminous massive stars is relatively unknown compared to their hotter counterparts. Here we present radial velocity (RV) measurements and inv…