Examinando por Autor "Arcavi, Iair"

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    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, Ricardo
    SOXS (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.
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    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, Joshn
    SOXS 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 SPIE
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    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, Massimo
    The 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.
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    Monthly Notices of the Royal Astronomical Society
    (Oxford University Press, 2020-02) Clark, Peter; Maguire, Kate; Inserra, Cosimo; Prentice, Simon; Stephen, J. Smartt; Contreras, Carlos; Hossenizadeh, Griffin; Hsiao, Eric Y.; Kankare, Erkki; Kasliwal, Mansi; Nugent, Peter; Shahbandeh, Melissa; Baltay, Charles; Rabinowitz, David; Arcavi, Iair; Ashall, Chris; Burns, Christopher R.; Callis, Emma; Chen, Ting-Wan; Diamond, Tiara; Fraser, Morgan; Howell, D. Andrew; Karamehmetoglu, Emir; Kotak, Rubina; Lyman, Joseph; Morrell, Nidia; Phillips, Mark; Pignata, Giuliano; Pursiainen, Miika; Sollerman, Jesper; Stritzinger, Maximilian; Sullivan, Mark; Young, David
    This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8 ± 0.9 d to reach a peak brightness of −19.70 ± 0.02 mag in the LSQgr band. Early spectra of LSQ13ddu showed the presence of weak and narrow He I features arising from interaction with circumstellar material (CSM). These interaction signatures weakened quickly, with broad features consistent with those seen in stripped-envelope SNe becoming dominant around two weeks after maximum. The narrow He I velocities are consistent with the wind velocities of luminous blue variables but its spectra lack the typically seen hydrogen features. The fast and bright early light curve is inconsistent with radioactive 56Ni powering but can be explained through a combination of CSM interaction and an underlying 56Ni decay component that dominates the later time behaviour of LSQ13ddu. Based on the strength of the underlying broad features, LSQ13ddu appears deficient in He compared to standard SNe Ib. © 2019 The Author(s)
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    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, Bernardo
    An 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.
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    The Gravity Collective: A Search for the Electromagnetic Counterpart to the Neutron Star-Black Hole Merger GW190814
    (IOP Publishing Ltd, 2022-12-20) Kilpatrick, Charles D.; Coulter, David A.; Arcavi, Iair; Brink, Thomas G.; Dimitriadis, Georgios; Filippenko, Alexei V.; Foley, Ryan J.; Howell, D. Andrew; Jones, David O.; Kasen, Daniel; Makler, Martin; Piro, Anthony L.; Rojas-Bravo, César; Sand, David J.; Swift, Jonathan J.; Tucker, Douglas; Zheng, Weikang; Allam, Sahar S.; Annis, James T.; Antilen, Juanita; Bachmann, Tristan G.; Bloom, Joshua S.; Bom, Clecio R.; Bostroem, K. Azalee; Brout, Dillon; Burke, Jamison; Butler, Robert E.; Butner, Melissa; Campillay, Abdo; Clever, Karoli E.; Conselice, Christopher J.; Cooke, Jeff; Dage, Kristen C.; De Carvalho, Reinaldo R.; De Jaeger, Thomas; Desai, Shantanu; Garcia, Alyssa; Garcia-Bellido, Juan; Gill, Mandeep S. S.; Girish, Nachiket; Hallakoun, Na'Ama; Herner, Kenneth; Hiramatsu, Daichi; Holz, Daniel E.; Huber, Grace; Kawash, Adam M.; McCully, Curtis; Medallon, Sophia A.; Metzger, Brian D.; Modak, Shaunak; Morgan, Robert; Muoz, Ricardo R.; Muoz-Elgueta, Nahir; Murakami, Yukei S.; Olivares, Felipe; Palmese, Antonella; Patra, Kishore C.; Pereira, Maria E. S.; Pessi, Thallis L.; Pineda-Garcia J.; Quirola-Vásquez, Jonathan; Ramirez-Ruiz, Enrico; Rembold, Sandro Barboza; Rest, Armin; Rodríguez, Osmar; Santana-Silva, Luidhy; Sherman, Nora F.; Siebert, Matthew R.; Smith, Carli; Smith, J. Allyn; Soares-Santos, Marcelle; Stacey, Holland; Stahl, Benjamin E.; Strader, Jay; Strasburger, Erika; Sunseri, James; Tinyanont, Samaporn; Tucker, Brad E.; Ulloa, Natalie; Valenti, Stefano; Vasylyev, Sergiy S.; Wiesner, Matthew P.; Zhang, Keto D.
    We present optical follow-up imaging obtained with the Katzman Automatic Imaging Telescope, Las Cumbres Observatory Global Telescope Network, Nickel Telescope, Swope Telescope, and Thacher Telescope of the LIGO/Virgo gravitational wave (GW) signal from the neutron star-black hole (NSBH) merger GW190814. We searched the GW190814 localization region (19 deg2 for the 90th percentile best localization), covering a total of 51 deg2 and 94.6% of the two-dimensional localization region. Analyzing the properties of 189 transients that we consider as candidate counterparts to the NSBH merger, including their localizations, discovery times from merger, optical spectra, likely host galaxy redshifts, and photometric evolution, we conclude that none of these objects are likely to be associated with GW190814. Based on this finding, we consider the likely optical properties of an electromagnetic counterpart to GW190814, including possible kilonovae and short gamma-ray burst afterglows. Using the joint limits from our follow-up imaging, we conclude that a counterpart with an r-band decline rate of 0.68 mag day-1, similar to the kilonova AT 2017gfo, could peak at an absolute magnitude of at most -17.8 mag (50% confidence). Our data are not constraining for "red"kilonovae and rule out "blue"kilonovae with M > 0.5 M o˙ (30% confidence). We strongly rule out all known types of short gamma-ray burst afterglows with viewing angles <17° assuming an initial jet opening angle of ∼5.°2 and explosion energies and circumburst densities similar to afterglows explored in the literature. Finally, we explore the possibility that GW190814 merged in the disk of an active galactic nucleus, of which we find four in the localization region, but we do not find any candidate counterparts among these sources. © 2021. The American Astronomical Society. All rights reserved..