Search

Your search keyword '"Tofani, G"' showing total 4 results
Start Over Author "Tofani, G" Topic astrophysics - instrumentation and methods for astrophysics
4 results on '"Tofani, G"'

1. Planck early results. III. First assessment of the Low Frequency Instrument in-flight performance

Author

Mennella, A., Bersanelli, M., Butler, R. C., Curto, A., Cuttaia, F., Davis, R. J., Dick, J., Frailis, M., Galeotta, S., Gregorio, A., Kurki-Suonio, H., Lawrence, C. R., Leach, S., Leahy, J. P., Lowe, S., Maino, D., Mandolesi, N., Maris, M., Martínez-González, E., Meinhold, P. R., Morgante, G., Pearson, D., Perrotta, F., Polenta, G., Poutanen, T., Sandri, M., Seiffert, M. D., Suur-Uski, A. -S., Tavagnacco, D., Terenzi, L., Tomasi, M., Valiviita, J., Villa, F., Watson, R., Wilkinson, A., Zacchei, A., Zonca, A., Aja, B., Artal, E., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Battaglia, P., Bennett, K., Bonaldi, A., Bonavera, L., Borrill, J., Bouchet, F. R., Burigana, C., Cabella, P., Cappellini, B., Chen, X., Colombo, L., Cruz, M., Danese, L., D'Arcangelo, O., Davies, R. D., de Gasperis, G., de Rosa, A., de Zotti, G., Dickinson, C., Diego, J. M., Donzelli, S., Efstathiou, G., Enßlin, T. A., Eriksen, H. K., Falvella, M. C., Finelli, F., Foley, S., Franceschet, C., Franceschi, E., Gaier, T. C., Génova-Santos, R. T., George, D., Gómez, F., González-Nuevo, J., Górski, K. M., Gruppuso, A., Hansen, F. K., Herranz, D., Herreros, J. M., Hoyland, R. J., Hughes, N., Jewell, J., Jukkala, P., Juvela, M., Kangaslahti, P., Keihänen, E., Keskitalo, R., Kilpia, V. -H., Kisner, T. S., Knoche, J., Knox, L., Laaninen, M., Lähteenmäki, A., Lamarre, J. -M., Leonardi, R., León-Tavares, J., Leutenegger, P., Lilje, P. B., López-Caniego, M., Lubin, P. M., Malaspina, M., Marinucci, D., Massardi, M., Matarrese, S., Matthai, F., Melchiorri, A., Mendes, L., Miccolis, M., Migliaccio, M., Mitra, S., Moss, A., Natoli, P., Nesti, R., Nørgaard-Nielsen, H. U., Pagano, L., Paladini, R., Paoletti, D., Partridge, B., Pasian, F., Pettorino, V., Pietrobon, D., Pospieszalski, M., Prézeau, G., Prina, M., Procopio, P., Puget, J. -L., Quercellini, C., Rachen, J. P., Rebolo, R., Reinecke, M., Ricciardi, S., Robbers, G., Rocha, G., Roddis, N., Rubiño-Martín, J. A., Savelainen, M., Scott, D., Silvestri, R., Simonetto, A., Sjoman, P., Smoot, G. F., Sozzi, C., Stringhetti, L., Tauber, J. A., Tofani, G., Toffolatti, L., Tuovinen, J., Türler, M., Umana, G., Valenziano, L., Varis, J., Vielva, P., Vittorio, N., Wade, L. A., Watson, C., White, S. D. M., and Winder, F.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The scientific performance of the Planck Low Frequency Instrument (LFI) after one year of in-orbit operation is presented. We describe the main optical parameters and discuss photometric calibration, white noise sensitivity, and noise properties. A preliminary evaluation of the impact of the main systematic effects is presented. For each of the performance parameters, we outline the methods used to obtain them from the flight data and provide a comparison with pre-launch ground assessments, which are essentially confirmed in flight., Comment: Published version

Published
2011
Full Text
View/download PDF

2. Planck Early Results. V. The Low Frequency Instrument data processing

Author

Zacchei, A., Maino, D., Baccigalupi, C., Bersanelli, M., Bonaldi, A., Bonavera, L., Burigana, C., Butler, R. C., Cuttaia, F., de Zotti, G., Dick, J., Frailis, M., Galeotta, S., González-Nuevo, J., Górski, K. M., Gregorio, A., Keihänen, E., Keskitalo, R., Knoche, J., Kurki-Suonio, H., Lawrence, C. R., Leach, S., Leahy, J. P., López-Caniego, M., Mandolesi, N., Maris, M., Matthai, F., Meinhold, P. R., Mennella, A., Morgante, G., Morisset, N., Natoli, P., Pasian, F., Perrotta, F., Polenta, G., Poutanen, T., Reinecke, M., Ricciardi, S., Rohlfs, R., Sandri, M., Suur-Uski, A. -S., Tauber, J. A., Tavagnacco, D., Terenzi, L., Tomasi, M., Valiviita, J., Villa, F., Zonca, A., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Bedini, L., Bennett, K., Binko, P., Borrill, J., Bouchet, F. R., Bremer, M., Cabella, P., Cappellini, B., Chen, X., Colombo, L., Cruz, M., Curto, A., Danese, L., Davies, R. D., Davis, R. J., de Gasperis, G., de Rosa, A., de Troia, G., Dickinson, C., Diego, J. M., Donzelli, S., Dörl, U., Efstathiou, G., Enßlin, T. A., Eriksen, H. K., Falvella, M. C., Finelli, F., Franceschi, E., Gaier, T. C., Gasparo, F., Génova-Santos, R. T., Giardino, G., Gómez, F., Gruppuso, A., Hansen, F. K., Hell, R., Herranz, D., Hovest, W., Huynh, M., Jewell, J., Juvela, M., Kisner, T. S., Knox, L., Lähteenmäki, A., Lamarre, J. -M., Leonardi, R., León-Tavares, J., Lilje, P. B., Lubin, P. M., Maggio, G., Marinucci, D., Martínez-González, E., Massardi, M., Matarrese, S., Meharga, M. T., Melchiorri, A., Migliaccio, M., Mitra, S., Moss, A., Nørgaard-Nielsen, H. U., Pagano, L., Paladini, R., Paoletti, D., Partridge, B., Pearson, D., Pettorino, V., Pietrobon, D., Prézeau, G., Procopio, P., Puget, J. -L., Quercellini, C., Rachen, J. P., Rebolo, R., Robbers, G., Rocha, G., Rubiño-Martín, J. A., Salerno, E., Savelainen, M., Scott, D., Seiffert, M. D., Silk, J. I., Smoot, G. F., Sternberg, J., Stivoli, F., Stompor, R., Tofani, G., Toffolatti, L., Tuovinen, J., Türler, M., Umana, G., Vielva, P., Vittorio, N., Vuerli, C., Wade, L. A., Watson, R., White, S. D. M., and Wilkinson, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We describe the processing of data from the Low Frequency Instrument (LFI) used in production of the Planck Early Release Compact Source Catalogue (ERCSC). In particular, we discuss the steps involved in reducing the data from telemetry packets to cleaned, calibrated, time-ordered data (TOD) and frequency maps. Data are continuously calibrated using the modulation of the temperature of the cosmic microwave background radiation induced by the motion of the spacecraft. Noise properties are estimated from TOD from which the sky signal has been removed using a generalized least square map-making algorithm. Measured 1/f noise knee-frequencies range from 100mHz at 30GHz to a few tens of mHz at 70GHz. A destriping code (Madam) is employed to combine radiometric data and pointing information into sky maps, minimizing the variance of correlated noise. Noise covariance matrices required to compute statistical uncertainties on LFI and Planck products are also produced. Main beams are estimated down to the approx -10dB level using Jupiter transits, which are also used for geometrical calibration of the focal plane., Comment: A&A Volume 536, December 2011 Planck early results

Published
2011
Full Text
View/download PDF

3. The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory

Author

Poglitsch, A., Waelkens, C., Geis, N., Feuchtgruber, H., Vandenbussche, B., Rodriguez, L., Krause, O., Renotte, E., van Hoof, C., Saraceno, P., Cepa, J., Kerschbaum, F., Agnese, P., Ali, B., Altieri, B., Andreani, P., Augueres, J. -L., Balog, Z., Barl, L., Bauer, O. H., Belbachir, N., Benedettini, M., Billot, N., Boulade, O., Bischof, H., Blommaert, J., Callut, E., Cara, C., Cerulli, R., Cesarsky, D., Contursi, A., Creten, Y., De Meester, W., Doublier, V., Doumayrou, E., Duband, L., Exter, K., Genzel, R., Gillis, J. -M., Grözinger, U., Henning, T., Herreros, J., Huygen, R., Inguscio, M., Jakob, G., Jamar, C., Jean, C., de Jong, J., Katterloher, R., Kiss, C., Klaas, U., Lemke, D., Lutz, D., Madden, S., Marquet, B., Martignac, J., Mazy, A., Merken, P., Montfort, F., Morbidelli, L., Müller, T., Nielbock, M., Okumura, K., Orfei, R., Ottensamer, R., Pezzuto, S., Popesso, P., Putzeys, J., Regibo, S., Reveret, V., Royer, P., Sauvage, M., Schreiber, J., Stegmaier, J., Schmitt, D., Schubert, J., Sturm, E., Thiel, M., Tofani, G., Vavrek, R., Wetzstein, M., Wieprecht, E., and Wiezorrek, E.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Photodetector Array Camera and Spectrometer (PACS) is one of the three science instruments on ESA's far infrared and submillimetre observatory. It employs two Ge:Ga photoconductor arrays (stressed and unstressed) with 16x25 pixels, each, and two filled silicon bolometer arrays with 16x32 and 32x64 pixels, respectively, to perform integral-field spectroscopy and imaging photometry in the 60-210\mu\ m wavelength regime. In photometry mode, it simultaneously images two bands, 60-85\mu\ m or 85-125\mu\m and 125-210\mu\ m, over a field of view of ~1.75'x3.5', with close to Nyquist beam sampling in each band. In spectroscopy mode, it images a field of 47"x47", resolved into 5x5 pixels, with an instantaneous spectral coverage of ~1500km/s and a spectral resolution of ~175km/s. We summarise the design of the instrument, describe observing modes, calibration, and data analysis methods, and present our current assessment of the in-orbit performance of the instrument based on the Performance Verification tests. PACS is fully operational, and the achieved performance is close to or better than the pre-launch predictions.

Published
2010
Full Text
View/download PDF

4. Planck early results. V. The Low Frequency Instrument data processing

Author

Poutanen, T., Lähteenmäki, A., León-Tavares, J., Natoli, P., Polenta, G., Falvella, M.C., Bartlett, J.G., Smoot, G.F., Stompor, R., Bonavera, L., Bedini, L., Salerno, E., Banday, A.J., Paladini, R., Prézeau, G., Rocha, G., Seiffert, M.D., Lilje, P.B., Nørgaard-Nielsen, Hans Ulrik, Toffolatti, L., Cruz, M., Moss, A., Scott, D., Colombo, L., Keihänen, E., Keskitalo, R., Kurki-Suonio, H., Suur-Uski, A.-S., Juvela, M., Savelainen, M., Knox, L., Meinhold, P.R., Zonca, A., Leonardi, R., Lubin, P.M., Silk, J.I., Bartolo, N., Matarrese, S., Melchiorri, A., Maino, D., Bersanelli, M., Mennella, A., Tomasi, M., Gregorio, A., Cabella, P., De Gasperis, G., De Troia, G., Migliaccio, M., Quercellini, C., Vittorio, N., Marinucci, D., Génova-Santos, R.T., Rebolo, R., Rubiño-Martín, J.A., Tauber, J.A., Bennett, K., Bremer, M., Giardino, G., Sternberg, J., Partridge, B., Tofani, G., Umana, G., Bonaldi, A., De Zotti, G., Massardi, M., Zacchei, A., Frailis, M., Galeotta, S., Maris, M., Pasian, F., Tavagnacco, D., Gasparo, F., Maggio, G., Vuerli, C., Burigana, C., Butler, R.C., Cuttaia, F., Mandolesi, N., Morgante, G., Ricciardi, S., Sandri, M., Terenzi, L., Villa, F., De Rosa, A., Finelli, F., Franceschi, E., Gruppuso, A., Paoletti, D., Procopio, P., Cappellini, B., Donzelli, S., Stivoli, F., Morisset, N., Rohlfs, R., Binko, P., Meharga, M.T., Türler, M., Chen, X., Huynh, M., Puget, J.-L., Bouchet, F.R., Efstathiou, G., Valiviita, J., Eriksen, H.K., Hansen, F.K., Gómez, F., López-Caniego, M., Barreiro, R.B., Curto, A., Diego, J.M., Herranz, D., Martínez-González, E., Vielva, P., Górski, K.M., Lawrence, C.R., Gaier, T.C., Jewell, J., Mitra, S., Pagano, L., Pearson, D., Pietrobon, D., Wade, L.A., Leahy, J.P., Davies, R.D., Davis, R.J., Dickinson, C., Watson, R., Wilkinson, A., Lamarre, J.-M., Borrill, J., Kisner, T.S., Knoche, J., Matthai, F., Reinecke, M., Dörl, U., Enßlin, T.A., Hell, R., Hovest, W., Rachen, J.P., Robbers, G., White, S.D.M., Tuovinen, J., Baccigalupi, C., Dick, J., González-Nuevo, J., Leach, S., Perrotta, F., Danese, L., Pettorino, V., APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), APC - Gravitation (APC-Gravitation), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, PLANCK, Zacchei, A., Maino, D., Baccigalupi, C., Bersanelli, M., Bonaldi, A., Bonavera, L., Burigana, C., Butler, R. C., Cuttaia, F., de Zotti, G., Dick, J., Frailis, M., Galeotta, S., González Nuevo, J., Górski, K. M., Gregorio, Anna, Keihänen, E., Keskitalo, R., Knoche, J., Kurki Suonio, H., Lawrence, C. R., Leach, S., Leahy, J. P., López Caniego, M., Mandolesi, N., Maris, M., Matthai, F., Meinhold, P. R., Mennella, A., Morgante, G., Morisset, N., Natoli, P., Pasian, F., Perrotta, F., Polenta, G., Poutanen, T., Reinecke, M., Ricciardi, S., Rohlfs, R., Sandri, M., Suur Uski, A. S., Tauber, J. A., Tavagnacco, Daniele, Terenzi, L., Tomasi, M., Valiviita, J., Villa, F., Zonca, A., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Bedini, L., Bennett, K., Binko, P., Borrill, J., Bouchet, F. R., Bremer, M., Cabella, P., Cappellini, B., Chen, X., Colombo, L., Cruz, M., Curto, A., Danese, L., Davies, R. D., Davis, R. J., de Gasperis, G., de Rosa, A., de Troia, G., Dickinson, C., Diego, J. M., Donzelli, S., Dörl, U., Efstathiou, G., Ensslin, T. A., Eriksen, H. K., Falvella, M. C., Finelli, F., Franceschi, E., Gaier, T. C., Gasparo, F., Génova Santos, R. T., Giardino, G., Gómez, F., Gruppuso, A., Hansen, F. K., Hell, R., Herranz, D., Hovest, W., Jewell, J., Juvela, M., Kisner, T. S., Knox, L., Lähteenmäki, A., Lamarre, J. M., Leonardi, R., León Tavares, J., Lilje, P. B., Lubin, P. M., Maggio, G., Marinucci, D., Martínez González, E., Massardi, M., Matarrese, S., Meharga, M. T., Melchiorri, A., Migliaccio, M., Mitra, S., Moss, A., Norgaard Nielsen, H. U., Pagano, L., Paladini, R., Paoletti, D., Partridge, B., Pearson, D., Pettorino, V., Pietrobon, D., Prézeau, G., Procopio, P., Puget, J. L., Quercellini, C., Rachen, J. P., Rebolo, R., Robbers, G., Rocha, G., Rubino Martín, J. A., Salerno, E., Savelainen, M., Scott, D., Seiffert, M. D., Silk, J. I., Smoot, G. F., Sternberg, J., Stivoli, F., Stompor, R., Tofani, G., Tuovinen, J., Türler, M., Umana, G., Vielva, P., Vittorio, N., Vuerli, C., Wade, L. A., Watson, R., White, S. D. M., Wilkinson, A., Department of Physics, Helsinki Institute of Physics, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Universidad de Cantabria, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI)

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], media_common.quotation_subject, data analysis, Cosmic microwave background, education, FOS: Physical sciences, Cosmic background radiation, 01 natural sciences, Cosmology, Methods, observations, Surveys, methods, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, surveys, Settore FIS/05 - Astronomia e Astrofisica, CMB physics, 0103 physical sciences, data analysis [methods], Calibration, Planck, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Remote sensing, media_common, Physics, 010308 nuclear & particles physics, Instrument Data, Planck ESA mission, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Covariance, 115 Astronomy, Space science, methods: data analysis, observations [cosmology], [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Cardinal point, Space and Planetary Science, Sky, cosmic backround radiation, cosmology: observations, cosmic background radiation, cosmology, symbols, Astrophysics - Instrumentation and Methods for Astrophysics, Noise (radio), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

19 páginas, 18 figuras, 3 tablas.-- et al., We describe the processing of data from the Low Frequency Instrument (LFI) used in production of the Planck Early Release Compact Source Catalogue (ERCSC). In particular, we discuss the steps involved in reducing the data from telemetry packets to cleaned, calibrated, time-ordered data (TOD) and frequency maps. Data are continuously calibrated using the modulation of the temperature of the cosmic microwave background radiation induced by the motion of the spacecraft. Noise properties are estimated from TOD from which the sky signal has been removed using a generalized least square map-making algorithm. Measured 1/f noise knee-frequencies range from ~100 mHz at 30 GHz to a few tens of mHz at 70GHz. A destriping code (Madam) is employed to combine radiometric data and pointing information into sky maps, minimizing the variance of correlated noise. Noise covariance matrices required to compute statistical uncertainties on LFI and Planck products are also produced. Main beams are estimated down to the ≈−10dB level using Jupiter transits, which are also used for geometrical calibration of the focal plane., This work was supported by the Academy of Finland grants 121703 and 121962.

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results