Anna Brucalassi
A5073290736- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Adaptive optics and wavefront sensing
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Particle Accelerators and Free-Electron Lasers
- Astro and Planetary Science
- Calibration and Measurement Techniques
- Advanced Fiber Laser Technologies
- Spectroscopy and Laser Applications
- Photocathodes and Microchannel Plates
- solar cell performance optimization
- Particle accelerators and beam dynamics
- Particle Detector Development and Performance
- Semiconductor Lasers and Optical Devices
- Spacecraft Design and Technology
- Optical Systems and Laser Technology
- Distributed and Parallel Computing Systems
- Spacecraft and Cryogenic Technologies
- Advanced Fiber Optic Sensors
- CCD and CMOS Imaging Sensors
- Scientific Computing and Data Management
- Magnetic confinement fusion research
- Solar and Space Plasma Dynamics
National Institute for Astrophysics
2020-2024
Arcetri Astrophysical Observatory
2019-2024
Brera Astronomical Observatory
2020-2024
Osservatorio Astronomico di Padova
2020-2024
Weizmann Institute of Science
2020-2022
Max Planck Institute for Extraterrestrial Physics
2010-2022
Universidad Andrés Bello
2018-2022
Astronomical Observatory of Capodimonte
2018-2022
Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
2022
Institute for Space Astrophysics and Planetology
2022
The CRyogenic InfraRed Echelle Spectrograph (CRIRES) Upgrade project CRIRES$^{+}$ extended the capabilities of CRIRES. It transformed this VLT instrument into a cross-dispersed spectrograph to increase wavelength range that is covered simultaneously by up factor ten. In addition, new detector focal plane array three Hawaii 2RG detectors with 5.3 $\mu$m cutoff replaced existing detectors. Amongst many other improvements, spectropolarimetric unit was added and calibration system has been...
For the past six years we have carried out a search for massive planets around main sequence and evolved stars in open cluster (OC) M67, using radial velocity (RV) measurements obtained with HARPS at ESO (La Silla), SOPHIE OHP HRS HET. Additional RV data come from CORALIE Euler Swiss Telescope. We aim to perform long-term study on giant planet formation clusters determine how it depends stellar mass chemical composition. report detection of three new extrasolar planets: two orbit G dwarfs...
Since 2008 we used high-precision radial velocity (RV) measurements obtained with different telescopes to detect signatures of massive planets around main-sequence and evolved stars the open cluster (OC) M67. We aimed perform a long-term study on giant planet formation in clusters determine how this depends stellar mass chemical composition. A new hot Jupiter (HJ) star YBP401 is reported work. An update RV for two HJ host-stars YBP1194 YBP1514 also discussed. Our sample 66 turnoff includes 3...
The first generation of ELT instruments includes an optical-infrared high resolution spectrograph, indicated as ELT-HIRES and recently christened ANDES (ArmazoNes Dispersion Echelle Spectrograph). consists three fibre-fed spectrographs (UBV, RIZ, YJH) providing a spectral ∼100,000 with minimum simultaneous wavelength coverage 0.4-1.8 µm the goal extending it to 0.35-2.4 addition K band spectrograph. It operates both in seeing- diffraction-limited conditions fibre-feeding allows several,...
Precise stellar radial velocities are used to search for massive (Jupiter masses or higher) exoplanets around the stars of open cluster M67. We aim obtain a census in solar metallicity and age order study dependence planet formation on mass compare detail chemical composition with without planets. This first work presents sample observations, discusses characteristics velocity (RV) distribution stars, individuates most likely planetary host candidates. observed total 88 main-sequence...
We present the results of a seven-year-long radial velocity survey sample 88 main-sequence and evolved stars to reveal signatures Jupiter-mass planets in solar-age solar-metallicity open cluster M67. aim at studying frequency giant this with respect field stars. In addition, our is also ideal perform long-term study compare chemical composition without detail. analyzed precise (RV) measurements obtained five different instruments. conducted Monte Carlo simulations estimate occurrence rate...
SOXS (Son Of X-Shooter) will be a spectrograph for the ESO NTT telescope capable to cover optical and NIR bands, based on heritage of X-Shooter at ESO-VLT. built run by an international consortium, carrying out rapid longer term Target Opportunity requests variety astronomical objects. observe all kind transient variable sources from different surveys. These mixture fast alerts (e.g. gamma-ray bursts, gravitational waves, neutrino events), mid-term supernovae, X-ray transients), fixed time...
Son of X-Shooter (SOXS) will be a high-efficiency spectrograph with mean Resolution-Slit product 4500 (goal 5000) over the entire band capable simultaneously observing complete spectral range 350-2000 nm. It consists three scientific arms (the UV-VIS Spectrograph, NIR Spectrograph and Acquisition Camera) connected by Common Path system to NTT Calibration Unit. The is backbone instrument interface Nasmyth focus flange. light coming from telescope split common path optics into two different...
We report on the installation of a laser frequency comb (LFC) at HARPS spectrograph, which we characterize relative to second LFC that had brought for testing. This allowed us first time probe stability two independent astronomical LFCs over an extended wavelength range. Both covered spectral range least from 460 690 nm. After optimization fiber coupling suppress modal noise, in low cm/s was obtained. In combination with results our four earlier test campaigns HARPS, available data now cover...
SOXS (Son of X-shooter) is a wide band, medium resolution spectrograph for the ESO NTT with first light expected in early 2021. The instrument will be composed by five semi-independent subsystems: pre-slit Common Path (CP), an Acquisition Camera (AC), Calibration Unit (CU), NIR spectrograph, and UV-VIS spectrograph. In this paper, we present mechanical design subsystems, kinematic mounts developed to simplify final integration procedure maintenance. concept CP optomechanical simple pre-...
An overview of the optical design for SOXS spectrograph is presented. (Son Of X-Shooter) new wideband, medium resolution (R>4500) ESO 3.58m NTT telescope expected to start observations in 2021 at La Silla. The spectroscopic capabilities are assured by two different arms. UV-VIS (350-850 nm) arm based on a novel concept that adopts use 4 ion-etched high efficiency transmission gratings. NIR (800- 2000 '4C' (Collimator Correction Camera Chromatism) successfully applied X-Shooter. Other...
SOXS (Son Of X-Shooter) is a new spectrograph for the ESO NTT telescope, currently in final design phase. The main instrument goal to allow characterization of transient sources based on alerts. It will cover from near-infrared visible bands with spectral resolution $R \sim 4500$ using two separate, wavelength-optimized spectrographs. A camera, primarily intended target acquisition and secondary guiding, also provide scientific "light" imaging mode. In this paper we present current status...
The Son Of X-Shooter (SOXS)1 is a medium resolution spectrograph (R ~ 4500) proposed for the ESO 3.6m NTT. We present optical design of UV-VIS arm SOXS which employs high efficiency ion-etched gratings used in first order (m = 1) as main dispersers. spectral band split into four channels are directed to individual gratings, and imaged simultaneously by single three-element catadioptric camera. expected throughput our > 60% including contingency. collaboration expects light early 2021....
SOXS (Son Of X-Shooter) is a unique spectroscopic facility that will operate at the ESO New Technology Telescope (NTT) in La Silla from 2021 onward. The spectrograph be able to cover simultaneously UV-VIS and NIR bands exploiting two different arms Common Path feeding system. We present design of instrument control electronics. electronics controls all movements, alarms, cabinet temperatures, electric interlocks instrument. describe main concept. decided follow electronic guidelines minimize...
In 2020 the European Space Agency selected Ariel as next mission to join space fleet of observatories study planets outside our Solar System. will be devoted characterisation a thousand planetary atmospheres, for understanding what exoplanets are made of, how they formed and evolve. To achieve last two goals all need studied within context their own host stars, which in turn have analysed with same technique, uniform way. We present spectro-photometric method we developed infer atmospheric...
SOXS (Son of X-Shooter) will be the new medium resolution (R~4500 for a 1 arcsec slit), high-efficiency, wide band spectrograph ESO-NTT telescope on La Silla. It able to cover simultaneously optical and NIR bands (350-2000nm) using two different arms pre-slit Common Path feeding system. provide an unique facility follow up any kind transient event with best possible response time in addition high efficiency availability. Furthermore, Calibration Unit Acquisition Camera System all necessary...
Son Of X-Shooter (SOXS) is the new instrument for ESO 3.5 m New Technology Telescope (NTT) in La Silla site (Chile) devised spectroscopic follow-up of transient sources. SOXS composed by two medium resolution spectrographs able to cover 350-2000 nm interval. An Acquisition Camera will provide a light imaging capability visible band. We present procedure foreseen Assembly, Integration and Test activities (AIT) that be carried out at sub-systems level various consortium partner premises system...
SOXS will be a unique spectroscopic facility for the ESO NTT telescope able to cover optical and NIR bands thanks two different arms: UV-VIS (350-850 nm), (800-1800 nm). In this article, we describe design of visible camera cryostat architecture acquisition system. The detector system is based on e2v CCD 44-82, custom head coupled with continuous flow cryostats (CFC) cooling NGC controller developed by ESO. This paper outlines status describes parts that made up arm accompanied series...
Starting from our puzzling on-sky experience with the GIANO-TNG spectrometer we set up an infrared high resolution in laboratory and used this instrument to characterize modal noise generated fibers of different types (circular octagonal) sizes. Our experiment includes two conventional scrambling systems for fibers: a mechanical agitator optical double scrambler. We find that strength primarily depends on how fiber is illuminated. It dramatically increases when under-illuminated, either near...