J. A. López-Pérez

TL;DR: The first solid evidence of the presence of cyanogen in interstellar clouds through the detection of its protonated form toward the cold dark clouds TMC-1 and L483 is presented.

TL;DR: The Yebes 40 m radio telescope has been used for very long baseline interferometry (VLBI) and single-dish observations since 2010 as mentioned in this paper, where it has been covering frequency bands between 2 GHz and 90 GHz in discontinuous and narrow windows in most cases in order to match the current needs of the European VLBI Network (EVN) and the Global Millimeter VLI Array (GMVA).

TL;DR: In this paper, the first solid evidence of the presence of cyanogen in interstellar clouds through the detection of its protonated form toward the cold dark clouds TMC-1 and L483 was presented.

TL;DR: The mathematical foundation of the holographic method of measuring the reflector profile of an antenna or radio telescope is summarized and the case where the signal source is located at a finite distance from the antenna under test is treated, necessitating the inclusion of the so-called Fresnel field terms in the radiation integrals.

TL;DR: In this paper, the authors summarize the mathematical foundation of the holographic method of measuring the reflector profile of an antenna or radio telescope and describe the hardware and software implementation of the system used for the hologram measurement of the 12 m ALMA prototype sub-millimeter antennas.