Zobrazeno 1 - 10
of 13 581
pro vyhledávání: '"HERNANDEZ, D."'
Autor:
Sandoval, Miguel A. Cascales, Jurczyk, J., Skoric, L., Sanz-Hernández, D., Leo, N., Kovacs, A., Schrefl, T., Hierro-Rodríguez, A., Fernández-Pacheco, A.
In-operando techniques enable real-time measurement of intricate physical properties at the micro- and nano-scale under external stimuli, allowing the study of a wide range of materials and functionalities. In nanomagnetism, in-operando techniques gr
Externí odkaz:
http://arxiv.org/abs/2411.10374
The atmospheres of phosphorus-rich stars have been shown to contain between 10 and 100 times more P than our Sun. Given its crucial role as an essential element for life, it is especially necessary to uncover the origin of P-rich stars to gain insigh
Externí odkaz:
http://arxiv.org/abs/2408.12938
Autor:
Foster, Steve, Schiavon, Ricardo P., de Castro, Denise B., Lucatello, Sara, Daher, Christine, Penoyre, Zephyr, Price-Whelan, Adrian, Badenes, Carles, Fernández-Trincado, JJ. G., García-Hernández, D. A., Holtzman, Jon, Jönsson, Henrik, Shetrone, Matthew
Carbon abundances in first-ascent giant stars are usually lower than those of their main-sequence counterparts. At moderate metallicities, stellar evolution of single stars cannot account for the existence of red-giant branch stars with enhanced carb
Externí odkaz:
http://arxiv.org/abs/2407.18130
Autor:
Tosi, Silvia, Dell'Agli, Flavia, Kamath, Devika, Stanghellini, Letizia, Ventura, Paolo, Bianchi, Stefano, Gómez-Muñoz, Marco A., García-Hernández, D. A.
Planetary nebulae (PNe) have three main components: a central star (CS), ionised gas and dust in the nebula. Each of them contains critical chemical fingerprints of their evolution, serving as tracers of the evolution, nucleosynthesis and dust produc
Externí odkaz:
http://arxiv.org/abs/2405.03640
Autor:
Mohorian, Maksym, Kamath, Devika, Menon, Meghna, Ventura, Paolo, Van Winckel, Hans, García-Hernández, D. A., Masseron, Thomas
Dusty post-red giant branch (post-RGB) stars are low- and intermediate-mass stars where the RGB evolution was prematurely terminated by a poorly understood binary interaction. These binary stars are considered to be low-luminosity analogues of post-a
Externí odkaz:
http://arxiv.org/abs/2403.09999
Publikováno v:
A&A 682 (2024) L18
Fullerenes have been observed in several astronomical objects since the discovery of C$_{60}$ in the mid-infrared (mid-IR) spectrum of the planetary nebula (PN) Tc 1. It has been suggested that the carriers of the broad unidentified infrared (UIR) pl
Externí odkaz:
http://arxiv.org/abs/2402.14943
Publikováno v:
Applied Mathematical modelling 104 (2022)
This manuscript investigates the problem of locational complexity, a type of complexity that emanates from a companys territorial strategy. Using an entropy-based measure for supply chain structural complexity ( pars-complexity), we develop a theoret
Externí odkaz:
http://arxiv.org/abs/2402.01585
Publikováno v:
MNRAS 528 (2024) 2871-2881
Several planetary nebulae (PNe) have been found to contain both polycyclic aromatic hydrocarbon (PAH-like) species and fullerenes (C$_{60}$) distinguished by their mid-infrared emission. Previous laboratory and astronomical studies suggest that the f
Externí odkaz:
http://arxiv.org/abs/2401.09868
Autor:
Dell'Agli, F., Tosi, S., Kamath, D., Stanghellini, L., Bianchi, S., Ventura, P., Marini, E., García-Hernández, D. A.
We present a novel approach to address dust production by low- and intermediate-mass stars. We study the asymptotic giant branch (AGB) phase, during which the formation of dust takes place, from the perspective of post-AGB and planetary nebula (PN) e
Externí odkaz:
http://arxiv.org/abs/2310.03454
Autor:
Barzaga, R., Garcia-Hernandez, D. A., Diaz-Tendero, S., Sadjadi, S., Manchado, A., Alcami, M., Gomez-Muñoz, M. A., Huertas-Roldan, T.
Small metal-containing molecules have been detected and recognized as one of the hybrid species efficiently formed in space; especially in the circumstellar envelopes of evolved stars. It has been predicted also that more complex hybrid species like
Externí odkaz:
http://arxiv.org/abs/2309.11265