Search

Your search keyword '"Porceddu I."' showing total 16 results
Start Over Author "Porceddu I." Database OpenAIRE
16 results on '"Porceddu I."'

1. I-VLBI of molecular masers

Author

Luca Moscadelli, Porceddu, I., and ITA

Abstract

Intense maser emissions of several molecular species (OH, CH3OH, H2O, SiO) are widely observed toward both star-formation regions and late-type stars. VLBI observations of molecular masers offer an unique opportunity to study the kinematics of the circumstellar gas in both the earliest and latest evolution phases of a star. The forthcoming Sardinia Radio Telescope (SRT) together with the other two Italian antennae of Medicina and Noto, will in the near future constitute a three-element VLBI array of sufficiently high sensitivity and angular resolution to allow one to map the strongest maser lines of CH3OH (at 6.7 GHz), H2O (at 22.2 GHz) and SiO (at 43 GHz). The Italian VLBI network (I-VLBI) can be competitive in the observation of molecular masers provided that time flexibility and frequency agility will be granted.

Published
2006

11. The FLAMES-UVES Pipeline

Author

Modigliani, A., Giacomo Mulas, Porceddu, I., Wolff, B., Damiani, F., and Banse, B. K.

13. The SRT in the context of European networks: Astronomical Validation & future perspectives

Author

Prandoni, I., Melis, A., Migoni, C., Perrodin, D., Burgay, M., Govoni, F., Murgia, M., Pellizzoni, A., Righini, S., Andrea Tarchi, Bartolini, M., Bolli, P., Buttu, M., Castangia, P., Casu, S., Concu, R., Corongiu, A., D Amico, N., Egron, E., Fara, A., Gaudiomonte, F., Guidetti, D., Iacolina, M. N., Massi, F., Nasyr, F., Orfei, A., Orlati, A., Pisanu, T., Poppi, S., Porceddu, I., Ridolfi, A., Ricci, R., Stanghellini, C., Tiburzi, C., Trois, A., Vacca, V., Valente, G., and Zanichelli, A.

14. The Sardinia Radio Telescope

Author

Grueff, G., Alvito, G., Ambrosini, R., Bolli, P., D Amico, N., Maccaferri, A., Maccaferri, G., Morsiani, M., Mureddu, L., Natale, V., Olmi, L., Alessandro Orfei, Pernechele, C., Poma, A., Porceddu, I., Rossi, L., and Zacchiroli, G.

15. Sardinia Array Demonstrator: Instrument overview and status

Author

G. Serra, Matteo Murgia, Giovanni Tartarini, Federica Govoni, Andrea Maria Lingua, Fabio Paonessa, Pietro Bolli, A. Mattana, Giuseppe Virone, Tiziana Venturi, Daniele Dallacasa, Jader Monari, Davide Fierro, M. Schiaffino, A. Zanichelli, Francesco Schillirò, L. Mureddu, I. Porceddu, Giovanni Naldi, Giuseppe Pupillo, Isabella Prandoni, Francesco Gaudiomonte, Tonino Pisanu, Federico Perini, P. Marongiu, Muhammad Zunnoorain Farooqui, Andrea Melis, Giovanni Comoretto, Simone Rusticelli, Alberto Tibaldi, A. Poddighe, Bolli, P., Comoretto, G., Dallacasa, D., Farooqui, M. Z., Fierro, D., Gaudiomonte, F., Govoni, F., Lingua, A., Marongiu, P., Mattana, A., Melis, A., Monari, J., Murgia, M., Mureddu, L., Naldi, G., Paonessa, F., Perini, F., Pisanu, T., Poddighe, A., Porceddu, I., Prandoni, I., Pupillo, G., Rusticelli, S., Schiaffino, M., Schilliro, F., Serra, G., Tartarini, G., Tibaldi, A., Venturi, T., Virone, G., Zanichelli, A., ITA, and PAK

Subjects
Radio telescope, Antenna Array, Radio Frequency over Fiber, Aperture, Computer science, Systems engineering, Astrophysics::Instrumentation and Methods for Astrophysics, Satellite, Radio Astronomy, Radio frequency, Sardinia Radio Telescope, Remote sensing, Antenna Array
Abstract

In the framework of the Square Kilometer Array (SKA) project, the Italian Institute for Astrophysics (INAF) has addressed several efforts in the design and prototyping of aperture arrays for low-frequency radio astronomical research. The Sardinia Array Demonstrator (SAD) is a national project aimed to develop know-how in this area and to test different architectural technologies and calibration algorithms. SAD consists of 128 prototypical dual-polarized Vivaldi antennas designed to operate at radio frequencies below 650 MHz. The antennas will be deployed at the Sardinia Radio Telescope’s site with a versatile approach able to provide two different array configurations: (i) all antennas grouped in one large station or (ii) spread among a core plus few satellite stations. This paper provides an overview of the SAD project from an instrumental point of view, and illustrates its status after 2 years from its start.

Published
2015

16. The Galileo Telescope seeing monitor: technical overview and first results

Author

V. Zitelli, Massimo Brescia, S. Ortolani, Annalina Auricchio, I. Porceddu, M.P Sansone, Dario Mancini, Mancini, D., Auricchio, A., Brescia, M., Ortolani, S., Porceddu, I., Sansone, M. P., and Zitelli, V.

Subjects
Physics, Telescope, symbols.namesake, Space and Planetary Science, law, Fully automatic, Galileo (satellite navigation), symbols, Astronomy, Astronomy and Astrophysics, law.invention, Remote sensing
Abstract

The Galileo Telescope (TNG) seeing monitor is fully automatic and installed 100 m from the TNG. The details and characteristics of the system and a preliminary set of data are given here.

Published
1998
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results