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7 papers · 2 filters
Relative frequencies of supernovae versus properties of spiral hosts
A. A. Hakobyan, T. A. Nazaryan, V. Zh. Adibekyan +8
In this work, we present an analysis of SNe number ratios in spiral galaxies with different morphological subtypes, luminosities, sSFR, and metallicities, to provide important info…
What will blue compact dwarf galaxies evolve into?
Hagen T. Meyer, Thorsten Lisker, Joachim Janz +1
We present and analyse the photometric properties of a nearly complete sample of blue compact dwarf (BCD) and irregular galaxies in the Virgo cluster from multi-band SDSS images. O…
Limits on the spatial variations of the electron-to-proton mass ratio in the Galactic plane
S. A. Levshakov, D. Reimers, C. Henkel +4
Aims. To validate the Einstein equivalence principle (local position invariance) by limiting the fractional changes in the electron-to-proton mass ratio, mu = m_e/m_p, measured in…
Gaia FGK Benchmark Stars - Metallicity
Paula Jofre, U. Heiter, C. Soubiran +22
To calibrate automatic pipelines that determine atmospheric parameters of stars, one needs a sample of stars -- ``benchmark stars'' -- with well defined parameters to be used as a…
Kinematics and chemical properties of the Galactic stellar populations. The HARPS FGK dwarfs sample
V. Zh. Adibekyan, P. Figueira, N. C. Santos +7
(Abridged) We analyze chemical and kinematical properties of about 850 FGK solar neighborhood long-lived dwarfs observed with the HARPS high-resolution spectrograph. The stars in t…
A candidate circumbinary Keplerian disk in G35.20-0.74 N: A study with ALMA
A. Sanchez-Monge, R. Cesaroni, M. T. Beltran +13
We report on ALMA observations of continuum and molecular line emission with 0.4" resolution towards the high-mass star forming region G35.20-0.74 N. Two dense cores are detected i…