• Publication
    The Mass Profile and Shape of Bars in the Spitzer Survey of Stellar Structure in Galaxies (S4G): Search for an Age Indicator for Bars
    We have measured the radial light profiles and global shapes of bars using two-dimensional 3.6 μm image decompositions for 144 face-on barred galaxies from the...
  • Publication
    The mass ratio of Nova MUSCAE 1991
    We report intermediate resolution H alpha spectroscopy of the black hole candidate Nova Muscae 1991 during quiescence. We classify the companion star as a K3...
  • Publication
    The Mass-Metallicity Relation at z 1-2 and Its Dependence on the Star Formation Rate
    We present a new measurement of the gas-phase mass-metallicity relation (MZR) and its dependence on star formation rates (SFRs) at 1.3 < z < 2.3. Our sample...
  • Publication
    The masses, and the mass discrepancy of O-type stars
    Context. The “mass discrepancy” in massive O stars represents a long-standing problem in stellar astrophysics with far-reaching implications for the chemical...
  • Publication
    The massive multiple system HD 64315
    Context. The O6 Vn star HD 64315 is believed to belong to the star-forming region known as NGC 2467, but previous distance estimates do not support this...
  • Publication
    The Massive Neutron Star or Low-Mass Black Hole in 2S 0921-630
    We report on the optical spectroscopy of the eclipsing halo low-mass X-ray binary 2S 0921-630, which reveals the absorption-line radial velocity curve of the K0...
  • Publication
    The Massive Progenitor of the Possible Type II-Linear Supernova 2009hd in Messier 66
    We present early- and late-time photometric and spectroscopic observations of supernova (SN) 2009hd in the nearby spiral galaxy NGC 3627 (M66). This SN is one...
  • Publication
    The massive relic galaxy NGC 1277 is dark matter deficient. From dynamical models of integral-field stellar kinematics out to five effective radii
    According to the Λ cold dark matter (ΛCDM) cosmology, present-day galaxies with stellar masses M ⋆ > 10 11 M ⊙ should contain a sizable fraction of dark matter...
  • Publication
    The massive white dwarf in the recurrent nova TCrB
    We have obtained I-, J-, H- and K-band light curves of the recurrent nova TCrB. We find that we can fit the J-band light curve only with a Roche lobe filling...