Luigi Lessio
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View article: A multi-technique detection of an eccentric giant planet around the accelerating star HD 57625
A multi-technique detection of an eccentric giant planet around the accelerating star HD 57625 Open
Context. The synergy between different detection methods is a key asset in exoplanetology that allows the precise characterization of detected exoplanets and robust constraints even in the case of a non-detection. The interplay between ima…
View article: A multi-technique detection of an eccentric giant planet around accelerating star HD 57625
A multi-technique detection of an eccentric giant planet around accelerating star HD 57625 Open
The synergy between different detection methods is a key asset in exoplanetology, allowing for both precise characterization of detected exoplanets and robust constraints even in the case of non-detection. Recently, the interplay between i…
View article: Thermo-mechanical sizing and stress-induced birefringence analysis for the MezzoCielo assembly
Thermo-mechanical sizing and stress-induced birefringence analysis for the MezzoCielo assembly Open
MezzoCielo telescope aims to be a revolutionary optical instrument, designed to exhibit a field of view of around 104 square degrees. As such, it will be able to carry out whole-sky patrolling, which could be exploited, for instance, to tr…
View article: Walking with SOXS towards the transient sky
Walking with SOXS towards the transient sky Open
SOXS (Son Of X-Shooter) is the new ESO instrument that is going to be\ninstalled on the 3.58-m New Technology Telescope at the La Silla Observatory.\nSOXS is a single object spectrograph offering a wide simultaneous spectral\ncoverage from…
View article: Final alignment and image quality test for the acquisition and guiding system of SOXS
Final alignment and image quality test for the acquisition and guiding system of SOXS Open
SOXS (Son Of X-Shooter) will be the new medium-resolution (R 4500 for 1 slit), high-efficiency, wide-band spectrograph for the ESO NTT at La Silla Observatory, Chile. It will be dedicated to the follow-up of any kind of transient events, e…
View article: Final design of Cerberus, a three-headed instrument for the OARPAF telescope
Final design of Cerberus, a three-headed instrument for the OARPAF telescope Open
Cerberus will be a new scientific instrument for the alt-az, 1m-class OARPAF telescope in Northern Italy. Currently, the telescope operates with a CCD camera used for imaging and photometry. One of the objectives of the project is to impro…
View article: New developments on the Ingot WFS laboratory testing
New developments on the Ingot WFS laboratory testing Open
The Ingot WFS was designed to overcome some of the challenges present in classical wavefront sensors when they deal with sodium LGSs. This innovative sensor works by sensing the full 3D volume of the elongated LGS and is suitable for use i…
View article: A-central model for the geometric calibration of hyper-hemispherical lenses
A-central model for the geometric calibration of hyper-hemispherical lenses Open
Hyper-hemispherical lenses are optical objective lenses with an ultra-wide field of view. Due to their extreme field of view, the geometric calibration introduces several setup difficulties. Various methods have been developed for simplify…
View article: Fast photon-counting optical astronomy
Fast photon-counting optical astronomy Open
Fast sub-second optical variability exists in some important classes of astrophysical sources, in particular pulsars and X-ray binaries. We regularly perform ultra-fast optical photometric campaigns on some of the most interesting targets …
View article: UVC-Mirror for effective pathogens inactivation in air ducts
UVC-Mirror for effective pathogens inactivation in air ducts Open
Improving the air quality of indoor environments (IAQ) is of utmost importance to safeguard public health as people spend about 80–90% of their time indoor. Efficient Ultraviolet germicidal irradiation (UVGI) system represents a strategic …
View article: Status of the SST Camera for the Cherenkov Telescope Array
Status of the SST Camera for the Cherenkov Telescope Array Open
The Cherenkov Telescope Array will be the next generation ground-based gamma ray observatory in the energy range from few tens of GeV to hundreds of TeV. It will be built on two sites, one for each hemisphere, to cover the entire sky. The …
View article: In-lab characterization of HYPSOS, a novel stereo hyperspectral observing system: first results
In-lab characterization of HYPSOS, a novel stereo hyperspectral observing system: first results Open
HYPSOS (HYPerspectral Stereo Observing System, patented) is a novel remote sensing instrument able to extract the
\nspectral information from the two channels of a pushbroom stereo camera; thus it simultaneously provides 4D information,
\n…
View article: Solar ultraviolet light collector for germicidal irradiation on the moon
Solar ultraviolet light collector for germicidal irradiation on the moon Open
View article: SHARK-NIR, first results of the commissioning at LBT
SHARK-NIR, first results of the commissioning at LBT Open
SHARK-NIR is an instrument which provides direct imaging, both coronagraphic and non-coronagraphic and with the possibility to perform dual-band imaging and low-resolution spectroscopy in Y, J and H bands, with the main scientific goal of …
View article: Solar Ultraviolet Light Collector for Germicidal Irradiation on the Moon
Solar Ultraviolet Light Collector for Germicidal Irradiation on the Moon Open
Prolonged human-crewed missions on the Moon are foreseen as a gateway for Mars and asteroid colonisation in the next decades. Health risks related to long-time permanence in space have been partially investigated. Hazards due to airborne b…
View article: Progress on the SOXS transients chaser for the ESO-NTT
Progress on the SOXS transients chaser for the ESO-NTT Open
SOXS (Son Of X-Shooter) is a single object spectrograph offering a simultaneous spectral coverage from U- to H-band, built by an international consortium for the 3.58-m ESO New Technology Telescope at the La Silla Observatory. It is design…
View article: SHARK-NIR on its way to LBT
SHARK-NIR on its way to LBT Open
SHARK-NIR is a high contrast camera for the LBT, spanning the Y, J and H bands. It has been designed to fully exploit the high Strehl adaptive optics correction delivered by the FLAO module, recently upgraded to SOUL, and implements differ…
View article: From assembly to the complete integration and verification of the SOXS common path
From assembly to the complete integration and verification of the SOXS common path Open
The Son Of X-Shooter (SOXS) is a single object spectrograph offering\nsimultaneous spectral coverage in UV-VIS (350-850 nm) and NIR (800-2000 nm)\nwavelength regimes with an average of R close to 4500 for a 1 slit. SOXS also\nhas imaging c…
View article: The internal alignment and validation of a powered ADC for SOXS
The internal alignment and validation of a powered ADC for SOXS Open
The Son Of X-Shooter (SOXS) is a two-channel spectrograph along with imaging capabilities, characterized by a wide spectral coverage (350nm to 2000nm), designed for the NTT telescope at the La Silla Observatory. Its main scientific goal is…
View article: The ASTRI Mini-Array of Cherenkov telescopes at the Observatorio del Teide
The ASTRI Mini-Array of Cherenkov telescopes at the Observatorio del Teide Open
View article: Design of optical cavity for air sanification through ultraviolet germicidal irradiation
Design of optical cavity for air sanification through ultraviolet germicidal irradiation Open
The transmission of airborne pathogens represents a major threat to worldwide public health. Ultraviolet light irradiation can contribute to the sanification of air to reduce the pathogen transmission. We have designed a compact filter for…
View article: UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication
UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication Open
View article: Design of optical cavity for air sanification through ultraviolet germicidal irradiation
Design of optical cavity for air sanification through ultraviolet germicidal irradiation Open
The transmission of airborne pathogens represents a major issue to worldwide public health. Ultraviolet light irradiation can contribute to the sanification of air to reduce the pathogen transmission. This study concerns the design of a co…
View article: Bifocal Panoramic Stereoscopic Camera for Lunar Exploration
Bifocal Panoramic Stereoscopic Camera for Lunar Exploration Open
A bifocal panoramic stereoscopic camera (BIPS) has been designed a realized as a terrestrial prototype. The core of the camera is a novel Bifocal Panoramic Lens (BPL) we designed and realized, which is able to carry out a panoramic field o…
View article: GEOMETRICAL CALIBRATION FOR THE PANROVER: A STEREO OMNIDIRECTIONAL SYSTEM FOR PLANETARY ROVER
GEOMETRICAL CALIBRATION FOR THE PANROVER: A STEREO OMNIDIRECTIONAL SYSTEM FOR PLANETARY ROVER Open
A novel panoramic stereo imaging system is proposed in this paper. The system is able to carry out a 360° stereoscopic vision, useful for rover autonomous-driving, and capture simultaneously a high-resolution stereo scene. The core of the …
View article: UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication
UV-C irradiation is highly effective in inactivating SARS-CoV-2 replication Open
The potential virucidal effects of UV-C irradiation on SARS-CoV-2 were experimentally evaluated for different illumination doses and virus concentrations (1000, 5, 0.05 MOI). At a virus density comparable to that observed in SARS-CoV-2 inf…
View article: UV-C Irradiation Is Highly Effective in Inactivating and Inhibiting SARS-CoV-2 Replication
UV-C Irradiation Is Highly Effective in Inactivating and Inhibiting SARS-CoV-2 Replication Open
View article: SPHERE: the exoplanet imager for the Very Large Telescope
SPHERE: the exoplanet imager for the Very Large Telescope Open
Observations of circumstellar environments that look for the direct signal of exoplanets and the scattered light from disks have significant instrumental implications. In the past 15 years, major developments in adaptive optics, coronagrap…
View article: (Very) Fast astronomical photometry for meter-class telescopes
(Very) Fast astronomical photometry for meter-class telescopes Open
Our team at the INAF-Astronomical Observatory of Padova and the University of Padova is engaged in the design, construction and operations of instruments with very high time accuracy in the optical band for applications to High Time Resolu…
View article: (Very) Fast astronomical photometry for meter-class telescopes
(Very) Fast astronomical photometry for meter-class telescopes Open
Our team at the INAF-Astronomical Observatory of Padova and the University of Padova is engaged in the design, construction and operations of instruments with very high time accuracy in the optical band for applications to High Time Resolu…