39 citations · 54 across the 2 of their papers we have counts for
3 papers
On the chromospheric activity of stars with planets
B. L. Canto Martins, M. L. das Chagas, S. Alves +3
Context. Signatures of chromospheric activity enhancement have been found for a dozen stars, pointing to a possible star-planet interaction. Nevertheless in the coronal activity re…
A catalog of rotational and radial velocities for evolved stars. IV. Metal-poor stars
J. R. De Medeiros, J. R. P. Silva, J. D. Jr. do Nascimento +4
The present paper describes the first results of an observational program intended to refine and extend the existing vsini measurements of metal-poor stars, with anemphasis on fiel…
On the link between rotation, chromospheric activity and Li abundance in subgiant stars
J. D Jr. do Nascimento, B. L. Canto Martins, C. H. F. Melo +2
The connection rotation-CaII emission flux-lithium abundance is analyzed for a sample of bona fide subgiant stars, with evolutionary status determined from HIPPARCOS trigonometric…