Sardinia Radio Telescope: General Description, Technical Commissioning and First Light

被引：91

作者：

Bolli, P. ^{[1
]}

Orlati, A. ^{[2
]}

Stringhetti, L. ^{[1
,3
]}

Orfei, A. ^{[2
]}

Righini, S. ^{[2
]}

Ambrosini, R. ^{[2
]}

Bartolini, M. ^{[2
]}

Bortolotti, C. ^{[2
]}

Buffa, F. ^{[4
]}

Buttu, M. ^{[4
]}

Cattani, A. ^{[2
]}

D'Amico, N. ^{[4
]}

Deiana, G. ^{[4
]}

Fara, A. ^{[4
]}

Fiocchi, F. ^{[2
]}

Gaudiomonte, F. ^{[4
]}

Maccaferri, A. ^{[2
]}

Mariotti, S. ^{[2
]}

Marongiu, P. ^{[4
]}

Melis, A. ^{[4
]}

Migoni, C. ^{[4
]}

Morsiani, M. ^{[2
]}

Nanni, M. ^{[2
]}

Nasyr, F. ^{[4
]}

Pellizzoni, A. ^{[4
]}

Pisanu, T. ^{[4
]}

Poloni, M. ^{[2
]}

Poppi, S. ^{[4
]}

Porceddu, I. ^{[4
]}

Prandoni, I. ^{[2
]}

Roda, J. ^{[2
]}

Roma, M. ^{[2
]}

Scalambra, A. ^{[2
]}

Serra, G. ^{[4
]}

Trois, A. ^{[4
]}

Valente, G. ^{[4
]}

Vargiu, G. P. ^{[4
]}

Zacchiroli, G. ^{[2
]}

机构：

[1] INAF, Osserv Astrofis Arcetri, Florence, Italy

[2] INAF, Ist Radio Astron Bologna, Bologna, Italy

[3] INAF, Ist Astrofis Spaziale Fis Cosm Milano, Milan, Italy

[4] INAF, Osservat Astronom Cagliari, Cagliari, Italy

来源：

JOURNAL OF ASTRONOMICAL INSTRUMENTATION | 2015年 / 4卷 / 3-4期

关键词：

Radio telescope; technical commissioning; radio astronomy;

D O I：

10.1142/S2251171715500087

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the period 2012 June-2013 October, the Sardinia Radio Telescope (SRT) went through the technical commissioning phase. The characterization involved three first-light receivers, ranging in frequency between 300 MHz and 26 GHz, connected to a Total Power back-end. It also tested and employed the telescope active surface installed in the main reflector of the antenna. The instrument status and performance proved to be in good agreement with the expectations in terms of surface panels alignment (at present 300 similar to mrms to be improved with microwave holography), gain (similar to 0.6 K/ Jy in the given frequency range), pointing accuracy (5 arcsec at 22 GHz) and overall single- dish operational capabilities. Unresolved issues include the commissioning of the receiver centered at 350 MHz, which was compromised by several radio frequency interferences, and a lower- than- expected aperture e-ciency for the 22-GHz receiver when pointing at low elevations. Nevertheless, the SRT, at present completing its Astronomical Validation phase, is positively approaching its opening to the scienti _ c community.

引用

页数：20

共 26 条

[1] Ambrosini R., 2013, IEEE INT C EL ADV AP
[2] Ambrosini R., 2011, P URSI 30 GEN ASS SC
[3] The Planned Space Science Utilizations of the New Sardinia 64-m Radio Telescope
Ambrosini, Roberto
Asmar, Sami W.
Bolli, Pietro
Flamini, Enrico
[J]. PROCEEDINGS OF THE IEEE, 2011, 99 (05) : 875 - 880
[4] A Novel Application of the Active Surface of the Shaped Sardinia Radio Telescope for Primary-Focus Operations
Bolli, P.
Olmi, L.
Roda, J.
Zacchiroli, G.
[J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2014, 13 : 1713 - 1716
[5] Correcting secondary mirror surface errors in Noto 32 m radiotelescope using the 'active' primary mirror
Bolli, P
Grueff, G
[J]. ELECTRONICS LETTERS, 2003, 39 (05) : 416 - 417
[6] The Mobile Laboratory for Radio-Frequency Interference Monitoring at the Sardinia Radio Telescope
Bolli, Pietro
Gaudiomonte, Francesco
Ambrosini, Roberto
Bortolotti, Claudio
Roma, Mauro
Barberi, Carlo
Piccoli, Fabrizio
[J]. IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2013, 55 (05) : 19 - 24
[7] Diving into the Sardinia Radio Telescope minor servo system
Buttu, M. .
Orlati, A.
Zacchiroli, G.
Morsiani, M.
Fiocchi, F.
Buffa, F.
Maccaferri, G.
Vargiu, G. P.
Migoni, C.
Poppi, S.
Righini, S.
Melis, A.
[J]. SOFTWARE AND CYBERINFRASTRUCTURE FOR ASTRONOMY II, 2012, 8451
[8] Cortes-Medellin G., 2002, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), P136, DOI 10.1109/APS.2002.1016944
[9] Sardinia radio telescope: The new italian project
Grueff, G
Alvito, G
Ambrosini, R
Bolli, P
Maccaferri, A
Maccaferri, G
Morsiani, M
Mureddu, L
Natale, V
Olmi, L
Orfei, A
Pernechele, C
Poma, A
Porceddu, I
Rossi, L
Zacchiroli, G
[J]. GROUND-BASED TELESCOPES, PTS 1 AND 2, 2004, 5489 : 773 - 783
[10] Guiar CN, 1986, TELECOMMUN ACQUIS PR, V42, P36

← 1 2 3 →