Examinando por Autor "Landoni, Marco"
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Ítem Architecture of the SOXS instrument control software(SPIE, 2018-06) Ricci, Davide; Baruffolo, Andrea; Salasnich, Bernardo; Fantinel, Daniela; Urrutia, Josefinab; Campana, Sergio; Claudi, Riccardo; Schipani, Pietro; Aliverti, Matteo; Ben-Ami, Sagi; Biondi, Federico; Brucalassi, Anna; Capasso, Giulio; Cosentino, Rosario; D'Alessio, Francesco; D'Avanzo, Paolo; Diner, Oz; Kuncarayakti, Hanindyo; Munari, Matteo; Rubin, Adam; Scuderi, Salvo; Vitali, Fabrizio; Achrén, Jani; Araiza-Durán, José A.; Arcavi, Iair; Bianco, Andrea; Cappellaro, Enrico; Colapietro, Mirko; Della Valle, Massimo; D'Orsi, Sergio; Fynbo, Johan; Gal-Yam, Avishay; Genoni, Matteo; Hirvonen, Mika; Kotilainen, Jari; Kumar, Tarun; Landoni, Marco; Lehti, Jussi; Li Causi, Gianluca; Marafatto, Luca; Mattila, Seppo; Pariani, Giorgio; Pignata, Giuliano; Rappaport, Michael; Tarunp, Landon; Landoni, Marco; Lehti, Jussi; Li Causi, Gianluca; Marafatto, Luca; Mattila, Seppo; Pariani, Giorgio; Pignata, Giuliano; Rappaport, Michael; Riva, Marco; Smartt, Stephen; Turatto, Massimo; Zánmar Sánchez, RicardoSOXS (Son Of X-Shooter) is a new spectrograph for the ESO NTT telescope, currently in the final design phase. The main instrument goal is to allow the characterization of transient sources based on alerts. It will cover from near-infrared to visible bands with a spectral resolution of R 1/4 4500 using two separate, wavelength-optimized spectrographs. A visible camera, primarily intended for target acquisition and secondary guiding, will also provide a scientific "light" imaging mode. In this paper we present the current status of the design of the SOXS instrument control software, which is in charge of controlling all instrument functions and detectors, coordinating the execution of exposures, and implementing all observation, calibration and maintenance procedures. Given the extensive experience of the SOXS consortium in the development of instruments for the VLT, we decided to base the design of the Control System on the same standards, both for hardware and software control. We illustrate the control network, the instrument functions and detectors to be controlled, the overall design of SOXS Instrument Software (INS) and its main components. Then, we provide details about the control software for the most SOXS-specific features: Control of the COTS-based imaging camera, the flexures compensation system and secondary guiding. © 2018 SPIE.Ítem Development status of the UV-VIS detector system of SOXS for the ESO-NTT telescope(SPIE, 2020) Cosentino, Rosario; Hernandez, Marcos; Ventura, Hector; Campana, Sergio; Claudi, Riccardo; Schipani, Pietro; Aliverti, Matteo; Baruffolo, Andrea; Ben-Ami, Sagi; Biondi, Federico; Capasso, Giulio; D'Alessio, Francescoi; D'Avanzo, Paolo; Hershko, Ofir; Kuncarayakti, Hanindyoj; Landoni, Marco; Munari, Matteo; Pignata, Giuliano; Rubin, Adam; Scuderi, Salvatore; Vitali, Fabrizio; Young, David; Achrén, Jani; Araiza-Duran, José Antonio; Arcavi, Iair; Brucalassi, Anna; Bruch, Rachel; Cappellaro, Enrico; Colapietro, Mirko; della Valle, Massimo; de Pascale, Marco; Di Benedetto, Rosario; D'Orsi, Sergio; Gal-Yam, Avishay; Genoni, Matteo; Kotilainen, Jari; Li Causi, Gianluca; Mattila, Seppo; Rappaport, Michael; Radhakrishnan, Kalyan; Ricci, Davide; Riva, Marco; Salasnich, Bernardo; Smartt, Stephen; Sanchez, Ricardo Zanmar; Stritzinger, Maximilian; Accardo, Matteo; Mehrgan, Leander H.; Hopgood, JoshnSOXS will be the new spectroscopic facility for the ESO NTT telescope able to cover the optical and NIR bands by using two different arms: the UV-VIS (350-850 nm), and the NIR (800-2000 nm). In this article, we describe the development status of the visible camera cryostat, the architecture of the acquisition system and the progress in the electronic design. The UV-VIS detector system is based on a CCD detector 44-82 from e2v, a custom detector head, coupled with the ESO continuous flow cryostats (CFC), a custom cooling system, based on a Programmable Logic Controller (PLC), and the New General Controller (NGC) developed by ESO. This paper outlines the development status of the system, describes the design of the different parts that make up the UV-VIS arm and is accompanied by a series of information describing the SOXS design solutions in the mechanics and in the electronics parts. The first tests of the detector system with the UV-VIS camera will be shown. © 2020 SPIEÍtem MITS: The multi-imaging transient spectrograph for SOXS(SPIE, 2018-06) Rubin, Adam; Ben-Ami, Sagi; Hershko, Ofir; Rappaport, Michael; Diner, Oz; Gal-Yam, Avishay; Campana, Sergio; Claudi, Riccardo; Schipani, Pietro; Aliverti, Matteo; Baruffolo, Andread; Biondi, Federico; Brucalassi, Anna; Capasso, Giulio; Cosentino, Rosario; D'Alessio, Francesco; D'Avanzo, Paolo; Kuncarayakti, Hanindyo; Munari, Matteo; Scuderi, Salvatore; Vitali, Fabrizio; Achrén, Jani; Araiza-Duran, José Antonio; Arcavi, Iair; Bianco, Andrea; Cappellaro, Enrico; Colapietro, Mirko; Della Valle, Massimo; D'Orsi, Sergio; Fantinel, Daniela; Fynbo, Johan; Genoni, Matteo; Hirvonen, Mika; Kotilainen, Jari; Kumar, Tarun; Landoni, Marco; Lehti, Jussi; Li Causi, Gianluca; Marafatto, Luca; Mattila, Seppo; Pariani, Giorgio; Pignata, Giuliano; Ricci, Davide; Riva, Marco; Salasnich, Bernardo; Zanmar Sanchez, Ricardo; Smartt, Stephen; Turatto, MassimoThe Son Of X-Shooter (SOXS)1 is a medium resolution spectrograph (R ∼ 4500) proposed for the ESO 3.6m NTT. We present the optical design of the UV-VIS arm of SOXS which employs high efficiency ion-etched gratings used in first order (m = 1) as the main dispersers. The spectral band is split into four channels which are directed to individual gratings, and imaged simultaneously by a single three-element catadioptric camera. The expected throughput of our design is > 60% including contingency. The SOXS collaboration expects first light in early 2021. This paper is one of several papers presented in these proceedings2-10 describing the full SOXS instrument. © 2018 SPIE.Ítem Optical design of the SOXS spectrograph for ESO NTT(SPIE, 2018-06) Zanmar Sanchez, Ricardo; Munari, Matteoa; Rubin, Adam; Ben Ami, Sagi; Brucalassi, Anna; Kuncarayakti, Hanindyo; Achrén, Jani; Campana, Sergio; Claudi, Riccardo; Schipani, Pietro; Aliverti, Matteo; Baruffolo, Andrea; Biondi, Federico; Capasso, Giulio; Cosentino, Rosario; D'Alessio, Francesco; D'Avanzo, Paolo; Scuderi, Salvatore; Vitali, Fabrizio; Araiza-Durán, José Antonio; Arcavi, Iair; Bianco, Andrea; Cappellaro, Enrico; Colapietro, Mirko; Della Valle, Massimo; Diner, Oz; D'Orsi, Sergio; Fantinel, Daniela; Fynbo, Johano; Gal-Yam, Avishay; Genoni, Matteo; Hershko, Ofir; Hirvonen, Mika; Kotilainen, Jari; Kumar, Tarunk; Landoni, Marco; Lehti, Jussi; Li Causi, Gianluca; Marafatto, Luca; Mattila, Seppo; Pariani, Giorgio; Pignata, Giuliano; Rappaport, Michael; Ricci, Davide; Riva, Marco; Smartt, Stephen; Turatto, Massimo; Salasnich, BernardoAn overview of the optical design for the SOXS spectrograph is presented. SOXS (Son Of X-Shooter) is the new wideband, medium resolution (R>4500) spectrograph for the ESO 3.58m NTT telescope expected to start observations in 2021 at La Silla. The spectroscopic capabilities of SOXS are assured by two different arms. The UV-VIS (350-850 nm) arm is based on a novel concept that adopts the use of 4 ion-etched high efficiency transmission gratings. The NIR (800- 2000 nm) arm adopts the 4C' design (Collimator Correction of Camera Chromatism) successfully applied in X-Shooter. Other optical sub-systems are the imaging Acquisition Camera, the Calibration Unit and a pre-slit Common Path. We describe the optical design of the five sub-systems and report their performance in terms of spectral format, throughput and optical quality. This work is part of a series of contributions1-9 describing the SOXS design and properties as it is about to face the Final Design Review. © 2018 SPIE.Ítem Optical Spectroscopic Observations of Gamma-Ray Blazar Candidates. XII. Follow-up Observations from SOAR, Blanco, NTT, and OAN-SPM(American Astronomical Society, 2023-03) García-Pérez, Abigail; Peña-Herazo, Harold A.; Massaro, Francesco; Chavushyan, Vahram; D’abrusco, Raffaele; Masetti, Nicola; Landoni, Marco; Franca, Fabio La; Patiño-Álvarez, Víctor M.; Amaya-Almazán, Raúl A.; Milisavljevic, Dan; Paggi, Alessandro; Ricci, Federica; Jiménez-Bailón, Elena; Smith, Howard A.Roughly one third of the sources in the Fermi-LAT catalogs are listed as unidentified/unassociated γ-ray sources (UGS), i.e., they lack a low-energy counterpart. In addition, there is a growing population of blazars of uncertain type (BCUs). Spectroscopic observations are crucial to confirm the blazar nature of the UGSs candidate counterparts and BCUs. Hence, in 2013 we started an optical spectroscopic campaign to carry out the identifications and classifications. In this paper, as a continuation of the campaign we report the spectra of 39 sources: the sample comprises 37 sources classified as BCUs, one source classified as a BL Lac in the Fourth Source Catalog of the Fermi-LAT (4FGL), and one source classified as UGS. We classify 19 of the sources in the sample as BL Lacs, 13 as blazars with nonnegligible host-galaxy emission, six as Flat Spectrum Radio Quasars, and one as a normal elliptical galaxy. The source listed as BL Lac in the 4FGL seems to be a blazar with nonnegligible host-galaxy emission in our observations, most likely due to an ongoing quiescent state. We classified the UGS source as a BL Lac. Six out of the 39 sources were previously reported in the campaign; in general, both the classifications and redshifts are in agreement, except for one of them with no redshift reported before. Altogether, we provided reliable redshift estimates to 21 out of the 39 sources. Finally, we describe the statistics of the data collected in our campaign so far. © 2023. The Author(s). Published by the American Astronomical Society.Ítem Two New Catalogs of Blazar Candidates in the WISE Infrared Sky(Astrophysical Journal, Supplement Series, 2019) D’Abrusco, Raffaele; Álvarez Crespo, Nuria; Massaro, Francesco; Campana, Riccardo; Chavushyan, Vahram; Landoni, Marco; La Franca, Fabio; Masetti, Nicola; Milisavljevic, Dan; Paggi, Alessandro; Ricci, Federica; Smith, Howard A.We present two catalogs of radio-loud candidate blazars whose Wide-Field Infrared Survey Explorer (WISE) mid-infrared colors are selected to be consistent with the colors of confirmed γ-ray-emitting blazars. The first catalog is the improved and expanded release of the WISE Blazar-like Radio-Loud Sources (WIBRaLS) catalog presented by D’Abrusco et al. It includes sources detected in all four WISE filters, spatially cross-matched with radio sources in one of three radio surveys and radio-loud based on their q22 spectral parameter. WIBRaLS2 includes 9541 sources classified as BL Lacs, flat-spectrum radio quasars, or mixed candidates based on their WISE colors. The second catalog, called KDEBLLACS, based on a new selection technique, contains 5579 candidate BL Lacs extracted from the population of WISE sources detected in the first three WISE passbands ([3.4], [4.6], and [12]) only, whose mid-infrared colors are similar to those of confirmed, γ-ray BL Lacs. Members of KDBLLACS are also required to have a radio counterpart and be radio-loud based on the parameter q12, defined similarly to the q22 used for the WIBRaLS2. We describe the properties of these catalogs and compare them with the largest samples of confirmed and candidate blazars in the literature. We cross-match the two new catalogs with the most recent catalogs of γ-ray sources detected by the Fermi Large Area Telescope. Since spectroscopic observations of candidate blazars from the first WIBRaLS catalog within the uncertainty regions of γ-ray unassociated sources confirmed that ∼90% of these candidates are blazars, we anticipate that these new catalogs will again play an important role in the identification of the γ-ray sky.