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Innovative optical technologies for focal plane instrumentation

In principle, the dimensions of the focal plane instruments scale with the diameter of the telescope; nonetheless, the construction of such instruments is presently beyond our technological capabilities. Therefore, there is a need to identify and develop new optical technologies that will surmount this obstacle. As far as infrared spectroscopy is concerned, this is the most attractive technique for research into cold objects (planets and small bodies) close to bright stars.

To tackle these problems the desire to increase the spatial and spectral resolution is ever more pressing, and hence the need to increase as much as possible the available detection area. Italian observatories are involved in the development of next generation infrared spectrometers such as GIANO and NAHUAL for the GTC (Gran Telescopio Canarias). The X-SHOOTER spectrograph for the VLT, dedicated to the acquisition, in a single exposure, of intermediate resolution spectra (R 5000-15000) over a very wide spectral range (UV-NIR), was installed on the VLT in 2008. In general, given the dimensions of these instruments, it is necessary to build them via national and international consortia. This allows us to concentrate our contribution in the areas of maximum expertise and so requires that these are adequately supported.

The Lucchin Schools Return

Jun 01, 2025

The Lucchin Schools Return First Edition of the New INAF PhD School Series Concludes in Asiago

MISTRAL, a wind of change in the SRT observations

May 29, 2025

MISTRAL, a wind of change in the SRT observations MISTRAL is a new-generation receiver for observations at millimeter wavelengths, built as part of the recent project to upgrade the Sardinia Radio Telescope for the study of the high-frequency radio universe. The main features of this instrument are the very high number of detectors cooled to temperatures close to absolute zero and a dedicated cold optical system, which allow for extremely sharp images. MISTRAL made its “first light” by observing three different celestial objects: the Orion Nebula, the radio lobes of the supermassive black hole in the galaxy M87, and the supernova remnant Cassiopeia A. These images represent the first scientific observations at 90 GHz ever obtained using the SRT

Unlocking the secrets of the first Quasars: how they defy the laws of Physics to grow

Nov 20, 2024

Unlocking the secrets of the first Quasars: how they defy the laws of Physics to grow New evidence has been discovered explaining how supermassive black holes formed in the first billion years of the Universe's life. The study, conducted by INAF researchers, analyses 21 distant quasars and reveals that these objects are in a phase of extremely rapid accretion. This provides valuable insights into their formation and evolution, together with that of their host galaxies