We show that the Bronnikov theorem on the nonexistence of regular electrically charged black holes can be circumvented. In the frame of nonlinear electrodynamics, we present the exact regular black hole solutions of a hybrid type. They are electrically charged, but contain a ‘dual’ core confining a polarization of magnetic charges. The considered example is based on a modification of the AyónBe...

We present the results of a paleoparasitologic, paleogenetic and paleobotanic analysis of coprolites recovered during the excavation of the church La Concepción in Santa Cruz de Tenerife. Coprolites (n = 4) were rehydrated and a multidisciplinary analysis was conducted. The paleobotanic analysis showed numerous silicates, seeds and fruits of the family Moraceae. In the paleoparasitologic study,...

This paper deals with two European species, Phyllonorycter mespilella (Hübner, 1805) and P. trifasciella (Haworth, 1828), that have colonized the subtropical Canary Islands. The Rosaceae leaf miner, P. mespilella, is recorded for the first time from Lanzarote and La Palma, while the Caprifoliaceae leaf miner, P. trifasciella, is recorded from Tenerife. We present the diagnoses of these species ...

The properties of quasar hosts at the peak of the quasar activity Jari K. Kotilainen Tuorla Observatory, Department of Physics and Astronomy, University of Turku, Väisäläntie 20, FI–21500 Piikkiö, Finland [email protected] Renato Falomo INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122 Padova, Italy [email protected] Roberto Decarli and Aldo Treves Università d...

Data on opportunistic sightings of diamond-shaped squid Thysanoteuthis rhombus egg masses in the Canary Islands (Atlantic Ocean) are presented. A total of 16 egg masses of this species were recorded and photographed from 2000 to 2010 around the western islands of the archipelago (El Hierro, Tenerife and La Gomera). These data reveal the existence of an important spawning area for diamond-shaped...

The genus Apatema Walsingham, 1900 in the Canary Islands and Madeira is revised based on external morphology, genitalia DNA barcodes. We recognize 18 species, 13 of which are described as new: confluellum Falck & Karsholt, sp. n. (Spain: Tenerife), minimum Lanzarote Fuerteventura), lapalmae La Palma), sallyae Gran Canaria), lanzarotae Lanzarote), mixtum pseudolucidum griseum grancanariae br...

Abstract Global warming and ultraviolet radiation (UVR) affect marine organisms worldwide. However, we still lack knowledge about the consequences of these environmental changes to range-restricted macroalgae species, such as Gelidium canariense , a habitat-forming endemic Canary Islands. The aim this study is provide useful data for analyzing conservation status species. To do this, (1) compar...

We apply the Tenerife Inversion Code (TIC) to plage spectropolarimetric observations obtained by Chromospheric LAyer SpectroPolarimeter (CLASP2). These unprecedented data consist of full Stokes profiles in spectral region around Mg II h and k lines for a single slit position, with two thirds 200 arcsec crossing rest an enhanced network. A former analysis these had allowed us infer longitudinal ...

We report two-dimensional MHD simulations which demonstrate that photospheric 5-min oscillations can leak into the chromosphere inside small-scale vertical magnetic flux tubes. The results of our numerical experiments are compatible with those inferred from simultaneous spectropolarimetric observations of the photosphere and chromosphere obtained with the Tenerife Infrared Polarimeter (TIP) at ...