Zobrazeno 1 - 10
of 4 842
pro vyhledávání: '"Ortiz M A"'
Autor:
Ortiz, M. Espinoza, Guaita, L., Demarco, R., Calabró, A., Pentericci, L., Castellano, M., Artale, M. Celeste, Hathi, N. P., Koekemoer, Anton M., Mannucci, F., Hibon, P., McLeod, D. J., Gargiulo, A., Pompei, E.
Context: Understanding galaxy evolution in dense environments, particularly proto-clusters, is crucial for studying mechanisms driving star formation and quenching. Aims: This study examines how two proto-cluster over-densities at 3 < z < 4 impact st
Externí odkaz:
http://arxiv.org/abs/2411.08155
Direct numerical simulations of mechanical metamaterials are prohibitively expensive due to the separation of scales between the lattice and the macrostructural size. Hence, multiscale continuum analysis plays a pivotal role in the computational mode
Externí odkaz:
http://arxiv.org/abs/2410.05313
Autor:
Cooper, W. J., Jones, H. R. A., Smart, R. L., Folkes, S. L., Caballero, J. A., Marocco, F., Ortiz, M. C. Gálvez, Burgasser, A. J., Kirkpatrick, J. D., Sarro, L. M., Burningham, B., Cabrera-Lavers, A., Tremblay, P. E., Reylé, C., Lodieu, N., Zhang, Z. H., Cook, N. J., Faherty, J. F., García-Álvarez, D., Montes, D., Pinfield, D. J., Rajpurohit, A. S., Shi, J.
As part of our comprehensive, ongoing characterisation of the low-mass end of the main sequence in the Solar neighbourhood, we used the OSIRIS instrument at the 10.4 m Gran Telescopio Canarias to acquire low- and mid-resolution (R$\approx$300 and R$\
Externí odkaz:
http://arxiv.org/abs/2409.03706
Autor:
González-Payo, J., Caballero, J. A., Gorgas, J., Cortés-Contreras, M., Gálvez-Ortiz, M. -C., Cifuentes, C.
Publikováno v:
A&A 689, A302 (2024)
- Aims: We intended to quantify the impact of stellar multiplicity on the presence and properties of exoplanets. - Methods: We investigated all exoplanet host stars at less than 100 pc using the latest astrometric data from Gaia DR3 and advanced stat
Externí odkaz:
http://arxiv.org/abs/2407.20138
Autor:
Zhang, Z. H., Raddi, R., Burgasser, A. J., Casewell, S. L., Smart, R. L., Galvez-Ortiz, M. C., Jones, H. R. A., Baig, S., Lodieu, N., Gauza, B., Pavlenko, Ya. V., Jiao, Y. F., Zhao, Z. K., Zhou, S. Y., Pinfield, D. J.
We report the discovery of five white dwarf + ultracool dwarf systems identified as common proper motion wide binaries in the Gaia Catalogue of Nearby Stars. The discoveries include a white dwarf + L subdwarf binary, VVV 1256-62AB, a gravitationally
Externí odkaz:
http://arxiv.org/abs/2407.19219
We develop meanfield approximation and numerical quadrature schemes for the evaluation of Angular-Dependent interatomic Potentials (ADPs) for magnesium and magnesium hydrides at finite temperature (thermalization) and arbitrary atomic molar fractions
Externí odkaz:
http://arxiv.org/abs/2407.10030
We resort to variational methods to evaluate the asymptotic behavior of fine metamaterials as a function of cell size. To zeroth order, the metamaterial behaves as a micropolar continuum with both displacement and rotation degrees of freedom, but exh
Externí odkaz:
http://arxiv.org/abs/2407.00095
A method for solving three dimensional discrete dislocation plasticity boundary-value problems using a monopole representation of the dislocations is presented. At each time step, the displacement, strain and stress fields in a finite body are obtain
Externí odkaz:
http://arxiv.org/abs/2406.03375
When used in bulk applications, mechanical metamaterials set forth a multiscale problem with many orders of magnitude in scale separation between the micro and macro scales. However, mechanical metamaterials fall outside conventional homogenization t
Externí odkaz:
http://arxiv.org/abs/2403.18854
Autor:
Fuhrmeister, B., Czesla, S., Schmitt, J. H. M. M., Schneider, P. C., Caballero, J. A., Jeffers, S. V., Nagel, E., Montes, D., Ortiz, M. C. Gálves, Reinerns, A., Ribas, I., Quirrenbach, A., Amado, P. J., Henning, Th., Lodieu, N., Martín-Fernández, P., Morales, J. C., Schöfer, P., Seifert, W., Zechmeister, M.
Publikováno v:
A&A 678, A1 (2023)
The hydrogen Paschen lines are known activity indicators, but studies of them in M~dwarfs during quiescence are as rare as their reports in flare studies. This situation is mostly caused by a lack of observations, owing to their location in the near-
Externí odkaz:
http://arxiv.org/abs/2308.07685