activity
20052020
most citedThe effective temperature scale of FGK stars. II. Teff : color : [Fe/H] calibrations

579 citations · 1.5k across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.SR2020★ 44 cited

Detailed chemical compositions of planet hosting stars: I. Exploration of possible planet signatures

F. Liu, D. Yong, M. Asplund +5

We present a line-by-line differential analysis of a sample of 16 planet hosting stars and 68 comparison stars using high resolution, high signal-to-noise ratio spectra gathered us…

astro-ph.SR2018★ 31 cited

Thorium in solar twins: implications for habitability in rocky planets

Rafael B. Botelho, Andre de C. Milone, Jorge Melendez +10

We have investigated the thorium (Th) abundance in a sample of 53 thin disc solar twins covering a wide range of ages. These data provide constrains on the mantle energy budget of…

astro-ph.EP2015★ 28 cited

The Solar Twin Planet Search II. A Jupiter twin around a solar twin

M. Bedell, J. Melendez, J. L. Bean +8

Through our HARPS radial velocity survey for planets around solar twin stars, we have identified a promising Jupiter twin candidate around the star HIP11915. We characterize this K…

astro-ph.SR2012★ 42 cited

The infrared colors of the Sun

L. Casagrande, I. Ramirez, J. Melendez +1

Solar infrared colors provide powerful constraints on the stellar effective temperature scale, but to this purpose they must be measured with both accuracy and precision. We achiev…

astro-ph.SR2012★ 103 cited

Oxygen abundances in low- and high-alpha field halo stars and the discovery of two field stars born in globular clusters

I. Ramirez, J. Melendez, J. Chaname

Oxygen abundances of 67 dwarf stars in the metallicity range -1.6<[Fe/H]<-0.4 are derived from a non-LTE analysis of the 777 nm O I triplet lines. These stars have precise atmosphe…

astro-ph.SR2012

Precise Effective Temperatures of Solar Analog Stars

D. Cornejo, I. Ramirez, P. S. Barklem

We perform a study of 62 solar analog stars to compute their effective temperatures (Teff) using the Balmer line wing fitting procedure and compare them with Teff values obtained u…