236 citations · 922 across the 14 of their papers we have counts for
13 papers
Optical properties of Y dwarfs observed with the Gran Telescopio Canarias
Eduardo L. Martín, Jerry J. -Y. Zhang, Honorio Lanchas +3
Observations of five Y dwarfs with three optical and near-infrared instruments at the 10.4 m Gran Telescopio Canarias are reported. Deep images of the five targets and a low-resolu…
Validating post-AGB candidates in the LMC and SMC using SALT spectra
Ryszard Szczerba, Marcin Hajduk, Yakiv V. Pavlenko +8
We selected a sample of post-AGB candidates in the Magellanic Clouds on the basis of their near- and mid-infrared colour characteristics. Fifteen of the most optically bright post-…
A detailed study of Lithium in 107 CHEPS dwarf stars
Ya. V. Pavlenko, J. S. Jenkins, O. M. Ivanyuk +4
We report results from lithium abundance determinations using high resolution spectral analysis of the 107 metal-rich stars from the Calan-Hertfordshire Extrasolar Planet Search pr…
Surprisingly different starspot distributions on the near equal-mass equal-rotation-rate stars in the M dwarf binary GJ 65 AB
J. R. Barnes, S. V. Jeffers, C. A. Haswell +4
We aim to understand how stellar parameters such as mass and rotation impact the distribution of starspots on the stellar surface. To this purpose, we have used Doppler imaging to…
The metal rich abundance pattern - spectroscopic properties and abundances for 107 main-sequence stars
Oleksiy M. Ivanyuk, James S. Jenkins, Yakiv V. Pavlenko +2
We report results from the high resolution spectral analysis of the 107 metal rich (mostly [Fe/H]7.67 dex) target stars from the Calan-Hertfordshire Extrasolar Planet Search p…
Starspot distributions on fully convective M dwarfs: implications for radial velocity planet searches
J. R. Barnes, S. V. Jeffers, H. R. A. Jones +4
Since M4.5 - M9 dwarfs exhibit equatorial rotation velocities of order 10 km/s on average, radial velocity surveys targeting this stellar population will likely need to find method…