A5091194620- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Galaxies: Formation, Evolution, Phenomena
- Astro and Planetary Science
- Astrophysical Phenomena and Observations
- Perovskite Materials and Applications
- Adaptive optics and wavefront sensing
- Cosmology and Gravitation Theories
- Atmospheric Ozone and Climate
- Calibration and Measurement Techniques
Universidad Complutense de Madrid
2019-2020
Spanish National Observatory
2020
We present precise photospheric parameters of 282 M dwarfs determined from fitting the most recent version PHOENIX models to high-resolution CARMENES spectra in visible (0.52 - 0.96 $\mu$m) and near-infrared wavelength range (0.96 1.71 $\mu$m). With its aim search for habitable planets around dwarfs, several different masses have been detected. The characterization target sample is important ability derive constrain physical properties any planetary systems that are As a continuation...
We investigate the relation between detection of 11.3 μ m polycyclic aromatic hydrocarbon (PAH) feature in nuclear (∼24−230 pc) regions 22 nearby Seyfert galaxies and properties cold molecular gas. For former we use ground-based (0.3−0.6″ resolution) mid-infrared (mid-IR) spectroscopy. The gas is traced by ALMA NOEMA high (0.2−1.1″) angular resolution observations CO(2–1) transition. Galaxies with a PAH contain more (median 1.6 × 10 7 M ⊙ ) have higher column densities ( N (H 2 = 23 cm −2...
The nearby ultra-compact multiplanetary system YZ Ceti consists of at least three planets. orbital period each planet is the subject discussion in literature due to strong aliasing radial velocity data. stellar activity this M dwarf also hampers significantly derivation planetary parameters. With an additional 229 measurements obtained since discovery publication, we reanalyze and resolve alias issues. We use model comparison framework Bayesian statistics periodogram simulations based on a...
Active galactic nucleus (AGN) driven outflows are believed to play an important role in regulating the growth of galaxies, mostly via negative feedback. However, their effects on hosts far from clear, especially for low- and moderate-luminosity Seyferts. To investigate this issue, we obtained cold molecular gas observations, traced by CO(2-1) transition, using NOEMA interferometer five nearby (distances between 19 58 Mpc) Seyfert galaxies. The resolution ∼0.3–0.8 (∼30–100 pc) field view...
We have corrected an error in Passegger et al. (2019) the calculation of stellar surface gravity log g from literature masses and radii provided by Gaidos & Mann (2014) (2015).