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On the chlorine abundance in H II regions

Autor: Orte-García, Maialen, Esteban, César, Méndez-Delgado, José Eduardo, García-Rojas, Jorge

Chlorine (Cl) is a chemical element of the group of the halogens and is between the 17th and the 20th most abundant elements in the Solar System. It is thought to be produced from the capture of a proton or neutron by specific alpha-element isotopes

Externí odkaz: http://arxiv.org/abs/2410.18673

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Generalized $T_e$([OIII])-$T_e$(HeI) Discrepancies in Ionized Nebulae: Possible Evidence of Case B Deviations and Temperature Inhomogeneities

Autor: Méndez-Delgado, J. E., Skillman, E. D., Aver, E., Morisset, C., Esteban, C., García-Rojas, J., Kreckel, K., Rogers, N. S. J., Rosales-Ortega, F. F., Arellano-Córdova, K. Z., Flury, S. R., Reyes-Rodríguez, E., Orte-García, M.

The physics of recombination lines (RLs) in the HeI singlet system is expected to be relatively simple, supported by accurate atomic models. We examine the intensities of HeI singlets $\lambda \lambda$3614, 3965, 5016, 6678, 7281 and the triplet HeI

Externí odkaz: http://arxiv.org/abs/2410.17381

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High stability 2D electron gases formed in Si3N4/Al//KTaO3 heterostructures: synthesis and in-depth interfacial characterization

Autor: Martínez, E. A., Lucero, A. M., Cantero, E. D., Biškup, N., Orte, A., Sánchez, E. A., Romera, M., Nemes, N. M., Martínez, J. L., Varela, M., Grizzi, O., Bruno, F. Y.

The two-dimensional electron gas (2DEG) found in KTaO3-based interfaces has garnered attention due to its remarkable electronic properties. In this study, we investigated the conducting system embedded at the Si3N4/Al//KTO(110) heterostructure. We de

Externí odkaz: http://arxiv.org/abs/2409.11893

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Akademický článek

Evaluation of the Biological Effect of a Nicotinamide-Containing Broad-Spectrum Sunscreen on Photodamaged Skin

Publikováno v: Dermatology and Therapy, Vol 14, Iss 12, Pp 3321-3336 (2024)

Abstract Introduction UVA-UVB increases skin matrix metalloproteinases and breaks down extracellular proteins and fibrillar type 1 collagen, leading to photodamage. Topical application of nicotinamide prevents UV-induced immunosuppression. Several st

Externí odkaz: https://doaj.org/article/ae65533045f446fd98b4d3c5b1c58ab0

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Density biases and temperature relations for DESIRED HII regions

Autor: Méndez-Delgado, J. E., Esteban, C., García-Rojas, J., Arellano-Córdova, K. Z., Kreckel, K., Gómez-Llanos, V., Egorov, O. V., Peimbert, M., Orte-García, M.

We present a first study based on the analysis of the DEep Spectra of Ionized REgions Database (DESIRED). This is a compilation of 190 high signal-to-noise ratio optical spectra of HII regions and other photoionized nebulae, mostly observed with 8-10

Externí odkaz: http://arxiv.org/abs/2305.13136

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