Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Cunha, Katia"'
Autor:
Loaiza-Tacuri, V., Cunha, Katia, Smith, Verne V., Quispe-Huaynasi, F., Costa-Almeida, Ellen, Ghezzi, Luan, Melendez, Jorge
Effective temperatures, surface gravities, and iron abundances were derived for 109 stars observed by the K2 mission using equivalent width measurements of Fe I and Fe II lines. Calculations were carried out in LTE using Kurucz model atmospheres. Ste
Externí odkaz:
http://arxiv.org/abs/2405.08128
Autor:
Hsu, Chih-Chun, Burgasser, Adam J., Theissen, Christopher A., Birky, Jessica L., Aganze, Christian, Gerasimov, Roman, Schmidt, Sarah J., Blake, Cullen H., Covey, Kevin R., Moreno-Hilario, Elizabeth, Gelino, Christopher R., Serna, Javier, Brownstein, Joel R., Cunha, Katia
We present precise measurements of radial (RV) and projected rotational ($v\sin{i}$) velocities, effective temperatures, and surface gravities of a sample of 258 M6 to L2 dwarfs with multi-epoch, high-resolution ($\lambda/\Delta\lambda$ = 22500), nea
Externí odkaz:
http://arxiv.org/abs/2403.13760
Autor:
Wilson, Robert F., Cañas, Caleb I., Majewski, Steven R., Cunha, Katia, Smith, Verne V., Bender, Chad F., Mahadevan, Suvrath, Fleming, Scott W., Teske, Johanna, Ghezzi, Luan, Jönsson, Henrik, Beaton, Rachael L., Hasselquist, Sten, Stassun, Keivan, Nitschelm, Christian, García-Hernández, D. A., Hayes, Christian R., Tayar, Jamie
The chemical abundances of planet-hosting stars offer a glimpse into the composition of planet-forming environments. To further understand this connection, we make the first ever measurement of the correlation between planet occurrence and chemical a
Externí odkaz:
http://arxiv.org/abs/2111.01753
Autor:
Souto, Diogo, Cunha, Katia, Smith, Verne V., Prieto, C. Allende, Burgasser, Adam, Covey, Kevin, Garcia-Hernandez, D. A., Holtzman, Jon A., Johnson, Jennifer A., Jonsson, Henrik, Mahadevan, Suvrath, Majewski, Steven R., Masseron, Thomas, Shetrone, Matthew, Rojas-Ayala, Barbara, Sobeck, Jennifer, Stassun, Keivan G., Terrien, Ryan, Teske, Johanna, Wanderley, Fabio, Zamora, Olga
We present spectroscopic determinations of the effective temperatures, surface gravities and metallicities for 21 M-dwarfs observed at high-resolution (R $\sim$ 22,500) in the \textit{H}-band as part of the SDSS-IV APOGEE survey. The atmospheric para
Externí odkaz:
http://arxiv.org/abs/2001.05597