R. Génova-Santos
A5064781112- Galaxies: Formation, Evolution, Phenomena
- Radio Astronomy Observations and Technology
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Superconducting and THz Device Technology
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Astrophysical Phenomena and Observations
- Geophysics and Gravity Measurements
- Scientific Research and Discoveries
- Dark Matter and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Precipitation Measurement and Analysis
- Adaptive optics and wavefront sensing
- Neutrino Physics Research
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Spectroscopy and Laser Applications
- Advanced Frequency and Time Standards
- Particle physics theoretical and experimental studies
- Atmospheric Ozone and Climate
- Calibration and Measurement Techniques
Instituto de Astrofísica de Canarias
2015-2024
Universidad de La Laguna
2015-2024
Museu de Astronomia e Ciências Afins
2019
University of Milan
2018
Consejo Superior de Investigaciones Científicas
2007-2016
Unidades Centrales Científico-Técnicas
2013-2016
Agenzia Spaziale Italiana
2012
Aalto University
2012
European Space Research Institute
2012
University of Cambridge
2008-2009
The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using original SDSS wide-field imager, and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution novel interferometer. All SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all acquired through 2013 July, 12 (DR12) adding July (including included in previous releases), marking end observing. Relative our public...
ABSTRACT The Sloan Digital Sky Survey III (SDSS-III) presents the first spectroscopic data from Baryon Oscillation Spectroscopic (BOSS). This ninth release (DR9) of SDSS project includes 535,995 new galaxy spectra (median z ∼ 0.52), 102,100 quasar 2.32), and 90,897 stellar spectra, along with presented in previous releases. These were obtained BOSS spectrograph taken between 2009 December 2011 July. In addition, parameters pipeline, which determines radial velocities, surface temperatures,...
The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in clustering matter over a larger volume than combined efforts all previous spectroscopic surveys large-scale structure. BOSS uses 1.5 million luminous galaxies as faint i = 19.9 10,000 deg2 BAO redshifts z < 0.7. Observations neutral hydrogen Lyα forest more 150,000 quasar spectra (g 22) will constrain redshift range 2.15 3.5. Early results from include first detection...
The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the Tenth Public Data Release (DR10) from its current incarnation, SDSS-III. data release includes first spectroscopic Apache Point Observatory Galaxy Evolution Experiment (APOGEE), along with Baryon Oscillation Spectroscopic (BOSS) taken through 2012 July. APOGEE instrument is a near-infrared R ∼ 22,500 300 fiber spectrograph covering 1.514–1.696 μm. survey studying chemical abundances and radial...
We derive constraints on cosmological parameters and tests of dark energy models from the combination baryon acoustic oscillation (BAO) measurements with cosmic microwave background (CMB) Type Ia supernova (SN) data. take advantage high-precision BAO galaxy clustering Ly-alpha forest (LyaF) in BOSS survey SDSS-III. data alone yield a high confidence detection energy, CMB angular scale they further imply nearly flat universe. Combining SN into an "inverse distance ladder" yields 1.7%...
The Arcminute Microkelvin Imager is a pair of interferometer arrays operating with six frequency channels spanning 13.9-18.2 GHz, very high sensitivity to angular scales 30''-10'. telescope aimed principally at Sunyaev-Zel'dovich imaging clusters galaxies. We discuss the design and describe explain its electronic mechanical systems.
ABSTRACT We present QUIJOTE intensity and polarization maps in four frequency bands centred around 11, 13, 17, 19 GHz, covering approximately 29 000 deg2, including most of the northern sky region. These result from 9000 h observations taken between May 2013 June 2018 with first multifrequency instrument (MFI), have angular resolutions 1°, sensitivities within range 35–40 µK per 1° beam, being a factor ∼2–4 worse intensity. discuss data processing pipeline employed, basic characteristics...
We present deep Ka-band (ν≈ 33 GHz) observations of the cosmic microwave background (CMB) made with extended Very Small Array (VSA). This configuration produces a naturally weighted synthesized FWHM beamwidth ∼11 arcmin, which covers an ℓ range 300 to 1500. On these scales, foreground extragalactic sources can be major source contamination CMB anisotropy. problem has been alleviated by identifying at 15 GHz Ryle Telescope and then monitoring using single-baseline interferometer collocated...
In this paper, we present Q-U-I JOint Tenerife Experiment (QUIJOTE) 10–20 GHz observations (194 h in total over ≈250 deg2) intensity and polarisation of G159.6-18.5, one the most widely studied regions harbouring anomalous microwave emission (AME). By combining with other publicly available data, achieve precise spectrum AME measured to date an individual region, 13 independent data points between 10 50 being dominated by emission. The four QUIJOTE provide first confirmation downturn at low...
The strong intervening absorption system at redshift 1.15 towards the very bright quasar HE 0515$-$4414 is most studied absorber for measuring possible cosmological variations in fine-structure constant, $α$. We observed 16.1$\,$h with Very Large Telescope and present here first constraint on relative $α$ parts-per-million (ppm) precision from new ESPRESSO spectrograph: $Δα/α= 1.3 \pm 1.3_{\rm stat} 0.4_{\rm sys}\,{\rm ppm}$. statistical uncertainty (1$σ$) similar to ensemble of previous...
This paper aims to describe the Pointing Reconstruction Model (PRM) and prototype Star Tracker, which will be mounted on LSPE-Strip, a microwave Q- W-band CMB telescope planned for installation at "Observatorio del Teide" in Tenerife. The PRM integrates information instantaneous attitude provided by control system determine actual pointing direction focal plane orientation of telescope. It accounts various non-idealities setup, represented eight configuration angles, calibrated using...
One of the goals ESPRESSO guaranteed time observations (GTOs) at ESO 8.2m telescope is to follow up on candidate planets from transit surveys such as TESS mission. High-precision radial velocities are required characterize small exoplanets. We intend confirm existence a transiting super-Earth around bright (V=9.74) K0-type star TOI-512 (TIC 119292328) and provide characterization. Combining photometric data 37 high-resolution spectroscopic in joint Markov chain Monte Carlo analysis, we...
Abstract This work is part of a series papers describing in detail the design and characterization LSPE-Strip , microwave telescope operating Q- W-bands which foreseen to be installed at Observatorio del Teide Tenerife. The paper aims describe Pointing Reconstruction Model (PRM) prototype Star Tracker, will mounted on . reconstruction crucial step deriving sky maps foreground emissions. PRM charge integrating information instantaneous attitude provided by control system, encoded two angles,...
We have observed the cosmic microwave background (CMB) in three regions of sky using Very Small Array (VSA) an extended configuration with antennas beamwidth 2° at 34 GHz. Combined data from previous VSA observations a more compact array larger beamwidth, we measure power spectrum primordial CMB anisotropies between angular multipoles ℓ= 160 and 1400. Such measurements high ℓ are vital for breaking degeneracies parameter estimation other cosmological data. The clearly resolves first acoustic...
We present Q-U-I JOint TEnerife (QUIJOTE) intensity and polarisation maps at 10-20 GHz covering a region along the Galactic plane 24<l<45 deg, |b|<8 deg. These result from 210 h of data, have sensitivity in ~40 muK/beam an angular resolution ~1 Our data are crucial to confirm presence anomalous microwave emission (AME) towards two molecular complexes W43 (22 sigma) W47 (8 sigma). also detect high significance (6 AME associated with W44, first clear detection this SNR. The new QUIJOTE...
The QUIJOTE (Q-U-I JOint Tenerife) CMB Experiment will operate at the Teide Observatory with aim of characterizing polarisation and other processes Galactic extragalactic emission in frequency range 10-40GHz large medium angular scales. first two telescopes multi-frequency (10-30GHz) instrument are already built have been tested laboratory. QUIJOTE-CMB be a valuable complement low frequencies for Planck mission, required sensitivity to detect primordial gravitational-wave component if...