221 citations · 718 across the 13 of their papers we have counts for
15 papers · 1 filter
Towards an Accurate Determination of Parameters for Very Massive Stars: the Eclipsing Binary LMC-SC1-105
Alceste Z. Bonanos
This paper presents a photometric and spectroscopic study of the bright blue eclipsing binary LMC-SC1-105, selected from the OGLE catalog as a candidate host of very massive stars…
'Slow' and Fast Rotators among Hypervelocity Stars
Mercedes Lopez-Morales, Alceste Z. Bonanos
We measure the projected rotational velocities of the late B-type hypervelocity stars HVS7 and HVS8 from high resolution spectroscopy to be 60 +/- 17 km/s and 260 +/- 70 km/s. The…
Low Metallicity Indicates that the Hypervelocity Star HE 0437-5439 was Ejected from the LMC
Alceste Z. Bonanos, Mercedes Lopez-Morales, Ian Hunter +1
We measure the metallicity of the unusual hypervelocity star HE 0437-5439 from high resolution spectroscopy to be half-solar. We determine a spectral type of B2 IV-III for the star…
The initial-final mass relationship from white dwarfs in common proper motion pairs
S. Catalan, J. Isern, E. Garcia-Berro +3
The initial-final mass relationship of white dwarfs, which is poorly constrained, is of paramount importance for different aspects in modern astrophysics. From an observational per…
Variability of Young Massive Stars in the Galactic Super Star Cluster Westerlund 1
Alceste Z. Bonanos
This paper presents the first optical variability study of the Westerlund 1 super star cluster in search of massive eclipsing binary systems. A total of 129 new variable stars have…
Eclipsing Binaries: Tools for Calibrating the Extragalactic Distance Scale
A. Z. Bonanos
In the last decade, over 7000 eclipsing binaries have been discovered in the Local Group through various variability surveys. Measuring fundamental parameters of these eclipsing bi…