A5029555557- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Astronomical Observations and Instrumentation
- Adaptive optics and wavefront sensing
- Calibration and Measurement Techniques
- Geophysics and Gravity Measurements
- Electricity Theft Detection Techniques
- Galaxies: Formation, Evolution, Phenomena
- Oil and Gas Production Techniques
- Astro and Planetary Science
- Gas Sensing Nanomaterials and Sensors
- Solar and Space Plasma Dynamics
- History and Developments in Astronomy
- Advanced Battery Technologies Research
- Geological Modeling and Analysis
- Gamma-ray bursts and supernovae
- Advanced Computational Techniques and Applications
- Atmospheric Ozone and Climate
- Water Systems and Optimization
Centro de Astrobiología
2016-2021
University of Alicante
2018-2021
Canadian Bar Association
2018
Universidad Complutense de Madrid
2016
Instituto de Astrofísica de Canarias
1990-2012
Consejo Superior de Investigaciones Científicas
1990
Abstract This paper describes the main characteristics of GRIS (GREGOR Infrared Spectrograph), grating spectrograph installed in recently inaugurated (May 2012) 1.5‐meter GREGOR telescope located at Observatorio del Teide Tenerife. The has a standard Czerny‐Turner configuration with parabolic collimator and camera mirrors that belong to same conic surface. Although nothing prevents its use visible wavelengths, will be initially used combination infrared detector Tenerife Polarimeter (TIP‐II)...
Context. The first Gaia Data Release (DR1) significantly improved the previously available proper motions for majority of Tycho -2 stars. Aims. We wish to detect runaway stars using DR1 and compare our results with previous searches. Methods. Runaway O BA supergiants were detected a 2D motion method. sample was selected Simbad, spectra from GOSSS project, literature spectral types, photometry processed code CHORIZOS. Results. 76 stars, 17 (possibly 19) them no prior identification as such,...
[ABRIDGED] AIMS. MONOS is collecting information and studying O-type spectroscopic binaries with delta > -20 deg. In this 1st paper we describe the sample provide spectral classifications additional for objects previous SB or EB orbits. future will test validity of solutions calculate new METHODS.The spectra in have 2 sources: GOSSS, which obtaining blue-violet R~2500 spectroscopy thousands massive stars, LiLiMaRlin, a library libraries high-resolution stars obtained from 4 different...
CONTEXT: Many massive stars have nearby companions whose presence hamper their characterization through spectroscopy. AIMS: We want to obtain spatially resolved spectroscopy of close visual binaries derive spectral types. METHODS: a large number short long-slit spectroscopic exposures five under good seeing conditions, select those with the best characteristics, extract spectra using multiple-profile fitting, and combine results separated spectra. RESULTS: demonstrate usefulness Lucky...
Context. Massive stars are a key element for understanding the chemical and dynamical evolution of galaxies. Stellar is conditioned by many factors: Rotation, mass loss, interaction with other objects most important ones massive stars. During first evolutionary stages initial masses (i.e., M ZAMS ) in ∼ 18–70 ⊙ range, they spectral type O. Given that this range spend roughly 90% their lifetime as O-type stars, establishing multiplicity frequency binary properties crucial fields modern...
CCD photometry for stars in three fields centered on the old open cluster NGC 188 is presented, with aim of investigating HR diagram distribution main-sequence stars. A sequence subgiant, turnoff, and has been detected, extending observed lower main down to about m(v) = 20 mag. It found that color-magnitude appears well fitted by a theoretical isochrone an age 6-billion yr, provided Yale transformations from into observational plane are assumed. From stellar luminosities, it turnoff should...
This communication shows the design, layout, mounting and start-up of a high-resolution grating spectrograph for VIS-NIR at GREGOR 1.5m Solar Telescope (Observatorio del Teide, Tenerife, Canary Islands). The instrument will be used together with Tenerife Infrared Polarimeter (TIP-II). As special characteristics following can mentioned: first folding mirror placed in two positions to take into account change optical axis introduced by polarizing beamsplitter TIP-II. way is optimally aligned...
ANÁLISIS DE LA PRODUCCIÓN HIDRÓGENO A PARTIR ELECTRICIDAD EXCEDENTE EN EL PERIODO FUERA PUNTA CARGA PARAGUAY Las centrales hidroeléctricas Itaipú, Yacyretá y Acaray suplen energía a varios países de Latinoamérica, uno estos es Paraguay, el cual presenta la problemática que su principal demandante sector residencial. Debido esto se evidencia curva carga entregada por Administración Nacional Electricidad (ANDE), posee un comportamiento irregular donde generan valles consumo, lo en esta...
LiLiMaRlin is a library of libraries massive-star high-resolution optical spectra built by collecting data from [a] our spectroscopic surveys (OWN, IACOB. NoMaDS, and CAFÉ-BEANS) programs [b] searches in public archives. The current version has 18 077 1665 stars obtained with seven different telescopes (HET 9.2 m, NOT 2.56 CAHA 2.2 MPG/ESO OHP 1.93 Mercator 1.2 Stella m). All the have been filtered to eliminate misidentifications bad-quality ones, uniformly reprocessed, placed on common...
This communication reviews the participation of Instituto de Astrofísica Canarias (IAC) in design European Solar Telescope. Apart being coordinator institution whole project, and, as such, responsible for project managing, IAC leads several tasks like overall instrument definition or characterization atmospheric turbulence profile with height adequate detectors. More particular, will and build two long-base SHABAR (SHAdow BAnd Ranger), instruments to measure medium-altitude seeing. The is...
Abstract We have detected 13 new runaway-star candidates of spectral type O combining the TGAS (Tycho-Gaia Astrometric Solution) proper motions from Gaia Data Release 1 (DR1) and sample GOSSS (Galactic O-Star Spectroscopic Survey). also combined Hipparcos to check that our technique recovers many previously known O-type runaways in sample.
We present our progress on the study of extinction laws along three diferent lines. [a] compare how well different families fit existing photometric data for Galactic sightlines and we find that Ma\'iz Apell\'aniz et al. (2014) family provides better results than those Cardelli (1989) or Fitzpatrick (1999). [b] describe HST/STIS spectrophotometry in 1700-10 200 Angstrom range are obtaining several tens 30 Doradus with purpose deriving an improved wavelength-detailed laws. [c] conducting...
The technology division of the Instituto de Astrofisica Canarias (IAC) is developing a data acquisition system (DAS) for an IR camera to be used at 1.5m Carlos Sanchez Telescope (TCS) in Observatorio del Teide (Canary Islands, Spain). This will work between wavelength 1 and 5 microns employ InSb focal plane array (FPA). DAS user interface are based on UNIX workstation with modular transputer controller. IGA-256 (Cincinnati Electronics) has been evaluated as candidate array. main features...