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Browsing by Author "Aghanim, N."

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Browsing by Author "Aghanim, N."

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  • Planck early results. I. The Planck mission
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Dick, Jason; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    The European Space Agency's Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in line with expectations, and it will continue ...
  • Planck early results. II. The thermal performance of Planck
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    The performance of the Planck instruments in space is enabled by their low operating temperatures, 20K for LFI and 0.1K for HFI, achieved through a combination of passive radiative cooling and three active mechanical ...
  • Planck early results. IX. XMM-Newton follow-up for validation of Planck cluster candidates
    Planck Collaboration; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    We present the XMM-Newton follow-up for confirmation of Planck cluster candidates. Twenty-five candidates have been observed to date using snapshot (~10 ksec) exposures, ten as part of a pilot programme to sample a low ...
  • Planck early results. VII. The Early Release Compact Source Catalogue
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Bonavera, Laura; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    A brief description of the methodology of construction, contents and usage of the Planck Early Release Compact Source Catalogue (ERCSC), including the Early Cold Cores (ECC) and the Early Sunyaev-Zeldovich (ESZ) cluster ...
  • Planck early results. VIII. The all-sky early Sunyaev-Zeldovich cluster sample
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    We present the first all-sky sample of galaxy clusters detected blindly by the Planck satellite through the Sunyaev-Zeldovich (SZ) effect from its six highest frequencies. This early SZ (ESZ) sample is comprised of 189 ...
  • Planck early results. X. Statistical analysis of Sunyaev-Zeldovich scaling relations for X-ray galaxy clusters
    Planck Collaboration; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    All-sky data from the Planck survey and the Meta-Catalogue of X-ray detected Clusters of galaxies (MCXC) are combined to investigate the relationship between the thermal Sunyaev-Zeldovich (SZ) signal and X-ray luminosity. ...
  • Planck early results. XI. Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    We present precise Sunyaev-Zeldovich (SZ) effect measurements in the direction of 62 nearby galaxy clusters (z <0.5) detected at high signal-to-noise in the first Planck all-sky dataset. The sample spans approximately ...
  • Planck early results. XII. Cluster Sunyaev-Zeldovich optical scaling relations
    Planck Collaboration; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    We present the Sunyaev-Zeldovich (SZ) signal-to-richness scaling relation (Y500-N200) for the MaxBCG cluster catalogue. Employing a multi-frequency matched filter on the Planck sky maps, we measure the SZ signal for ...
  • Planck early results. XIII. Statistical properties of extragalactic radio sources in the Planck Early Release Compact Source Catalogue
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Argueso, F.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Bonavera, Laura; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    The data reported in Planck's Early Release Compact Source Catalogue (ERCSC) are exploited to measure the number counts (dN/dS) of extragalactic radio sources at 30, 44, 70, 100, 143 and 217 GHz. Due to the full-sky ...
  • Planck early results. XIV. ERCSC validation and extreme radio sources
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Angelakis, E.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Bonavera, Laura; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    Planck's all sky surveys at 30-857 GHz provide an unprecedented opportunity to follow the radio spectra of a large sample of extragalactic sources to frequencies 2-20 times higher than allowed by past, large area, ...
  • Planck early results. XIX. All-sky temperature and dust optical depth from Planck and IRAS. Constraints on the “dark gas” in our Galaxy
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    An all sky map of the apparent temperature and optical depth of thermal dust emission is constructed using the Planck-HFI (350μm to 2 mm) and IRAS(100μm) data. The optical depth maps are correlated with tracers of the ...
  • Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources
    Planck Collaboration; Aatrokoski, J.; Ade, P.A.R.; Aghanim, N.; Baccigalupi, Carlo; Bonavera, Laura; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    Spectral energy distributions (SEDs) and radio continuum spectra are presented for a northern sample of 104 extragalactic radio sources, based on the Planck Early Release Compact Source Catalogue (ERCSC) and simultaneo ...
  • Planck early results. XVI. The Planck view of nearby galaxies
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    The all-sky coverage of the Planck Early Release Compact Source Catalogue (ERCSC) provides an unsurpassed survey of galaxies at submillimetre (submm) wavelengths, representing a major improvement in the numbers of ...
  • Planck early results. XVII. Origin of the submillimetre excess dust emission in the Magellanic Clouds
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    The integrated Spectral Energy Distributions of the Large and Small Magellanic Cloud appear significantly flatter than expected from dust models based on their FIR and radio emission. The origin of this millimetre excess ...
  • Planck early results. XVIII. The power spectrum of cosmic infrared background anisotropies
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Bonavera, Laura; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    Using Planck maps of six regions of low Galactic dust emission with a total area of about 140 square degrees, we determine the angular power spectra of cosmic infrared background (CIB) anisotropies from multipole l = 200 ...
  • Planck early results. XX. New light on anomalous microwave emission from spinning dust grains
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    Anomalous microwave emission (AME) has been observed by numerous experiments in the frequency range ~10-60 GHz. Using Planck maps and multi-frequency ancillary data, we have constructed spectra for two known AME regions: ...
  • Planck early results. XXI. Properties of the interstellar medium in the Galactic plane
    Planck Collaboration; Abergel, A.; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Leach, Samuel M.; Perrotta, Francesca (EDP Sciences, 2011-01-11)
    Planck has observed the entire sky from 30 GHz to 857GHz. The observed foreground emission contains contributions from different phases of the interstellar medium (ISM). We have separated the observed Galactic emission ...
  • Planck early results. XXII. The submillimetre properties of a sample of Galactic cold clumps
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J,; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    We perform a detailed investigation of sources from the Cold Cores Catalogue of Planck Objects (C3PO). Our goal is to probe the reliability of the detections, validate the separation between warm and cold dust ...
  • Planck early results. XXIII. The first all-sky survey of Galactic cold clumps
    Planck Collaboration; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    We present the statistical properties of the first version of the Cold Core Catalogue of Planck Objects (C3PO), in terms of their spatial distribution, temperature, distance, mass, and morphology. We also describe the ...
  • Planck early results. XXIV. Dust in the diffuse interstellar medium and the Galactic halo
    Planck Collaboration; Abergel, A.; Ade, P.A.R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, Carlo; Danese, Luigi; De Zotti, Gianfranco; Gonzalez-Nuevo, Joaquin; Leach, Samuel; Perrotta, Francesca (EDP Sciences, 2011-12)
    This paper presents the first results of comparison of Planck along with IRAS data with Green Bank Telescope 21-cm observations in 14 fields covering more than 800 square degrees at high Galactic latitude. Galactic dust ...