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author = "Puget, J.-L."
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Found 171 documents, displaying page 1 of 18

Detection of the extra-Galactic background fluctuations at 170 $\mu$m

Author(s) : Lagache, G. , Puget, J. L.
Description : We have used the Marano1 field observations with ISOPHOT at 170 $\mu$m to search for the Cosmic Far-InfraRed Background fluctuations. This field is part of the FIRBACK project (Puget et al., 1999a). For the first time, fluctuations due to unresolved extra-Galactic sources are isolated. The emissio...
Repository : arXiv
Language(s) : Undetermined

Interstellar dust models for extinction and emission

Author(s) : Desert, F.-X. , Boulanger, F. , Puget, J.-L.
Description :
Repository : DSpace at University Leiden
Language(s) : English

Implications of the cosmic infrared background for light production and the star formation history in the Universe

Author(s) : Gispert, R. , Lagache, G. , Puget, J. L.
Description : The Cosmic Background due to the integrated radiation from galaxies over the whole life of the Universe is reviewed. We find that this background is well constrained by measurements. The total power in the background is in the range 60-93 nW/m2/sr. The data show the existence of a minimum separati...
Repository : arXiv
Language(s) : Undetermined

How accurately can the SZ effect measure peculiar cluster velocities and bulk flows?

Author(s) : Aghanim, N. , Górski, K. M. , Puget, J. -L.
Description : The Sunyaev-Zel'dovich effect is a powerful tool for cosmology that can be used to measure the radial peculiar velocities of galaxy clusters, and thus to test, and constrain, theories of structure formation and evolution. This requires, in principle, an accurate measurement of the effect, a good s...
Repository : arXiv
Language(s) : Undetermined

Modelling the infrared galaxy evolution using a phenomenological approach

Author(s) : Lagache, G. , Dole, H. , Puget, J. -L.
Description : To characterise the cosmological evolution of the sources contributing to the infrared extragalactic background, we have developped a phenomenological model that constrains in a simple way the galaxy luminosity function evolution with the redshift, and fits all the existing source counts and redsh...
Repository : arXiv
Language(s) : Undetermined

Predictions for Cosmological Infrared Surveys from Space with the Multiband Imaging Photometer for SIRTF (MIPS)

Author(s) : Dole, H. , Lagache, G. , Puget, J. -L. , .
Description : We make predictions for the cosmological surveys to be conducted by MIPS/SIRTF at 24, 70 and 160 microns, for the GTO and the legacy programs, using the latest knowledge of the instrument. In addition to detector and cirrus confusion noise, we discuss in detail the derivation of the confusion nois...
Repository : arXiv
Language(s) : Undetermined

The sources of the Cosmic Infrared Background

Author(s) : Lagache, G. , Dole, H. , Puget, J. -L.
Description : The discovery of the Cosmic Infrared Background (CIB) in 1996, together with recent cosmological surveys from the mid-infrared to the millimeter have revolutionized our view of star formation at high redshifts. It has become clear, in the last decade, that a population of galaxies that radiate mos...
Repository : arXiv
Language(s) : Undetermined

CMB anisotropies on circular scans

Author(s) : Delabrouille, J. , Gispert, R. , Puget, J. -L.
Description : We address the problem of map-making with data from the Planck Surveyor High Frequency Instrument, with an emphasis on the understanding and modelling of instrumental effects, and in particular that of sidelobe straylight. We propose a map-making method which takes advantage of the very special pr...
Repository : arXiv
Language(s) : Undetermined

The Submm Extragalactic Background. Star formation history of the Universe

Author(s) : Lagache, G. , Puget, J. L. , Gispert, R.
Description : The recently discovered Submillimeter Extragalactic Background (submm EB) has opened new perspectives on our understanding of galaxy evolution. We detail in this paper one of the major cosmological consequences of this discovery, the submm luminosity density history of the Universe. , Comment: 4 pag...
Repository : arXiv
Language(s) : Undetermined

New constraints on the cosmic mid-infrared background using TeV gamma-ray astronomy

Author(s) : Renault, C. , Barrau, A. , Lagache, G. , Puget, J. -L.
Description : Very high energy gamma-ray data obtained by CAT and HEGRA from active galactic nucleus Mkn 501 are used to constrain the cosmic Mid-Infrared background. While the entire infrared and submillimeter spectrum shape based on models has been fixed and the density scaled as a whole in previous studies, ...
Repository : arXiv
Language(s) : Undetermined
1 2 3 4 5 > >>

Found 171 documents, displaying page 1 of 18