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5 results on '"Rachen, JP"'

1. Planck intermediate results

Author

Akrami, Y, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, AJ, Barreiro, RB, Bartolo, N, Basak, S, Benabed, K, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bond, JR, Borrill, J, Bouchet, FR, Burigana, C, Calabrese, E, Carvalho, P, Chiang, HC, Crill, BP, Cuttaia, F, de Rosa, A, de Zotti, G, Delabrouille, J, Delouis, J-M, Di Valentino, E, Diego, JM, Dupac, X, Dusini, S, Efstathiou, G, Elsner, F, Enßlin, TA, Eriksen, HK, Fernandez-Cobos, R, Finelli, F, Fraisse, AA, Franceschi, E, Frolov, A, Galeotta, S, Ganga, K, Gerbino, M, González-Nuevo, J, Górski, KM, Gratton, S, Gruppuso, A, Gudmundsson, JE, Handley, W, Hansen, FK, Herranz, D, Hivon, E, Hobson, M, Huang, Z, Jones, WC, Keihänen, E, Keskitalo, R, Kim, J, Kisner, TS, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lamarre, J-M, Lasenby, A, Lattanzi, M, Lawrence, CR, Le Jeune, M, Levrier, F, Lilje, PB, Lindholm, V, López-Caniego, M, Ma, Y-Z, Macías-Pérez, JF, Maggio, G, Mandolesi, N, Marcos-Caballero, A, Maris, M, Martin, PG, Martínez-González, E, Matarrese, S, Mauri, N, McEwen, JD, Migliaccio, M, Molinari, D, Moneti, A, Montier, L, Morgante, G, Natoli, P, Paoletti, D, Partridge, B, Perrotta, F, Pettorino, V, Piacentini, F, Polenta, G, Puget, J-L, Rachen, JP, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, and Roudier, G

Subjects
Astronomical Sciences, Physical Sciences, catalogs, cosmology: observations, submillimeter: general, astro-ph.GA, astro-ph.CO, astro-ph.IM, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics, Space sciences
Abstract

We describe an extension of the most recent version of the Planck Catalogue of Compact Sources (PCCS2), produced using a new multi-band Bayesian Extraction and Estimation Package (BeeP). BeeP assumes that the compact sources present in PCCS2 at 857 GHz have a dust-like spectral energy distribution (SED), which leads to emission at both lower and higher frequencies, and adjusts the parameters of the source and its SED to fit the emission observed in Planck's three highest frequency channels at 353, 545, and 857 GHz, as well as the IRIS map at 3000 GHz. In order to reduce confusion regarding diffuse cirrus emission, BeeP's data model includes a description of the background emission surrounding each source, and it adjusts the confidence in the source parameter extraction based on the statistical properties of the spatial distribution of the background emission. BeeP produces the following three new sets of parameters for each source: (a) fits to a modified blackbody (MBB) thermal emission model of the source; (b) SED-independent source flux densities at each frequency considered; and (c) fits to an MBB model of the background in which the source is embedded. BeeP also calculates, for each source, a reliability parameter, which takes into account confusion due to the surrounding cirrus. This parameter can be used to extract sub-samples of high-frequency sources with statistically well-understood properties. We define a high-reliability subset (BeeP/base), containing 26 083 sources (54.1% of the total PCCS2 catalogue), the majority of which have no information on reliability in the PCCS2. We describe the characteristics of this specific high-quality subset of PCCS2 and its validation against other data sets, specifically for: the sub-sample of PCCS2 located in low-cirrus areas; the Planck Catalogue of Galactic Cold Clumps; the Herschel GAMA15-field catalogue; and the temperature-and spectral-index-reconstructed dust maps obtained with Planck's Generalized Needlet Internal Linear Combination method. The results of the BeeP extension of PCCS2, which are made publicly available via the Planck Legacy Archive, will enable the study of the thermal properties of well-defined samples of compact Galactic and extragalactic dusty sources.

Published
2020

2. Planck intermediate results: LV. Reliability and thermal properties of high-frequency sources in the Second Planck Catalogue of Compact Sources

Author

Akrami, Y, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, AJ, Barreiro, RB, Bartolo, N, Basak, S, Benabed, K, Bernard, JP, Bersanelli, M, Bielewicz, P, Bond, JR, Borrill, J, Bouchet, FR, Burigana, C, Calabrese, E, Carvalho, P, Chiang, HC, Crill, BP, Cuttaia, F, De Rosa, A, De Zotti, G, Delabrouille, J, Delouis, JM, Di Valentino, E, Diego, JM, Dupac, X, Dusini, S, Efstathiou, G, Elsner, F, Enßlin, TA, Eriksen, HK, Fernandez-Cobos, R, Finelli, F, Fraisse, AA, Franceschi, E, Frolov, A, Galeotta, S, Ganga, K, Gerbino, M, González-Nuevo, J, Górski, KM, Gratton, S, Gruppuso, A, Gudmundsson, JE, Handley, W, Hansen, FK, Herranz, D, Hivon, E, Hobson, M, Huang, Z, Jones, WC, Keihänen, E, Keskitalo, R, Kim, J, Kisner, TS, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lamarre, JM, Lasenby, A, Lattanzi, M, Lawrence, CR, Le Jeune, M, Levrier, F, Lilje, PB, Lindholm, V, López-Caniego, M, Ma, YZ, Macías-Pérez, JF, Maggio, G, Mandolesi, N, Marcos-Caballero, A, Maris, M, Martin, PG, Martínez-González, E, Matarrese, S, Mauri, N, McEwen, JD, Migliaccio, M, Molinari, D, Moneti, A, Montier, L, Morgante, G, Natoli, P, Paoletti, D, Partridge, B, Perrotta, F, Pettorino, V, Piacentini, F, Polenta, G, Puget, JL, Rachen, JP, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, and Roudier, G

Subjects
catalogs, cosmology: observations, submillimeter: general, astro-ph.GA, astro-ph.CO, astro-ph.IM, Astronomy & Astrophysics, Astronomical and Space Sciences
Abstract

We describe an extension of the most recent version of the Planck Catalogue of Compact Sources (PCCS2), produced using a new multi-band Bayesian Extraction and Estimation Package (BeeP). BeeP assumes that the compact sources present in PCCS2 at 857 GHz have a dust-like spectral energy distribution (SED), which leads to emission at both lower and higher frequencies, and adjusts the parameters of the source and its SED to fit the emission observed in Planck's three highest frequency channels at 353, 545, and 857 GHz, as well as the IRIS map at 3000 GHz. In order to reduce confusion regarding diffuse cirrus emission, BeeP's data model includes a description of the background emission surrounding each source, and it adjusts the confidence in the source parameter extraction based on the statistical properties of the spatial distribution of the background emission. BeeP produces the following three new sets of parameters for each source: (a) fits to a modified blackbody (MBB) thermal emission model of the source; (b) SED-independent source flux densities at each frequency considered; and (c) fits to an MBB model of the background in which the source is embedded. BeeP also calculates, for each source, a reliability parameter, which takes into account confusion due to the surrounding cirrus. This parameter can be used to extract sub-samples of high-frequency sources with statistically well-understood properties. We define a high-reliability subset (BeeP/base), containing 26 083 sources (54.1% of the total PCCS2 catalogue), the majority of which have no information on reliability in the PCCS2. We describe the characteristics of this specific high-quality subset of PCCS2 and its validation against other data sets, specifically for: the sub-sample of PCCS2 located in low-cirrus areas; the Planck Catalogue of Galactic Cold Clumps; the Herschel GAMA15-field catalogue; and the temperature-and spectral-index-reconstructed dust maps obtained with Planck's Generalized Needlet Internal Linear Combination method. The results of the BeeP extension of PCCS2, which are made publicly available via the Planck Legacy Archive, will enable the study of the thermal properties of well-defined samples of compact Galactic and extragalactic dusty sources.

Published
2020

3. Planck 2018 results. XII. Galactic astrophysics using polarized dust emission

Author

Collaboration, P, Aghanim, N, Akrami, Y, Alves, MIR, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, AJ, Barreiro, RB, Bartolo, N, Basak, S, Benabed, K, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bock, JJ, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Bracco, A, Bucher, M, Burigana, C, Calabrese, E, Cardoso, J-F, Carron, J, Chary, R-R, Chiang, HC, Colombo, LPL, Combet, C, Crill, BP, Cuttaia, F, Bernardis, PD, Zotti, GD, Delabrouille, J, Delouis, J-M, Valentino, ED, Dickinson, C, Diego, JM, Doré, O, Douspis, M, Ducout, A, Dupac, X, Efstathiou, G, Elsner, F, Enßlin, TA, Eriksen, HK, Fantaye, Y, Fernandez-Cobos, R, Ferrière, K, Forastieri, F, Frailis, M, Fraisse, AA, Franceschi, E, Frolov, A, Galeotta, S, Galli, S, Ganga, K, Génova-Santos, RT, Gerbino, M, Ghosh, T, González-Nuevo, J, Górski, KM, Gratton, S, Green, G, Gruppuso, A, Gudmundsson, JE, Guillet, V, Handley, W, Hansen, FK, Helou, G, Herranz, D, Hivon, E, Huang, Z, Jaffe, AH, Jones, WC, Keihänen, E, Keskitalo, R, Kiiveri, K, Kim, J, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J-M, Lasenby, A, Lattanzi, M, Lawrence, CR, Jeune, ML, Levrier, F, Liguori, M, Lilje, PB, Lindholm, V, López-Caniego, M, Lubin, PM, Ma, Y-Z, Macías-Pérez, JF, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, Marcos-Caballero, A, Maris, M, Martin, PG, Martínez-González, E, Matarrese, S, Mauri, N, McEwen, JD, Melchiorri, A, Mennella, A, Migliaccio, M, Miville-Deschênes, M-A, Molinari, D, Moneti, A, Montier, L, Morgante, G, Moss, A, Natoli, P, Pagano, L, Paoletti, D, Patanchon, G, Perrotta, F, Pettorino, V, Piacentini, F, Polastri, L, Polenta, G, Puget, J-L, Rachen, JP, Reinecke, M, Remazeilles, M, Renzi, A, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rubiño-Martín, JA, Ruiz-Granados, B, Salvati, L, Sandri, M, Savelainen, M, Scott, D, Sirignano, C, Sunyaev, R, Suur-Uski, A-S, Tauber, JA, Tavagnacco, D, Tenti, M, Toffolatti, L, Tomasi, M, Trombetti, T, Valiviita, J, Tent, BV, Vielva, P, Villa, F, Vittorio, N, Wandelt, BD, Wehus, IK, Zacchei, A, and Zonca, A

Subjects
astro-ph.GA, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

We present 353 GHz full-sky maps of the polarization fraction $p$, angle $\psi$, and dispersion of angles $S$ of Galactic dust thermal emission produced from the 2018 release of Planck data. We confirm that the mean and maximum of $p$ decrease with increasing $N_H$. The uncertainty on the maximum polarization fraction, $p_\mathrm{max}=22.0$% at 80 arcmin resolution, is dominated by the uncertainty on the zero level in total intensity. The observed inverse behaviour between $p$ and $S$ is interpreted with models of the polarized sky that include effects from only the topology of the turbulent Galactic magnetic field. Thus, the statistical properties of $p$, $\psi$, and $S$ mostly reflect the structure of the magnetic field. Nevertheless, we search for potential signatures of varying grain alignment and dust properties. First, we analyse the product map $S \times p$, looking for residual trends. While $p$ decreases by a factor of 3--4 between $N_H=10^{20}$ cm$^{-2}$ and $N_H=2\times 10^{22}$ cm$^{-2}$, $S \times p$ decreases by only about 25%, a systematic trend observed in both the diffuse ISM and molecular clouds. Second, we find no systematic trend of $S \times p$ with the dust temperature, even though in the diffuse ISM lines of sight with high $p$ and low $S$ tend to have colder dust. We also compare Planck data with starlight polarization in the visible at high latitudes. The agreement in polarization angles is remarkable. Two polarization emission-to-extinction ratios that characterize dust optical properties depend only weakly on $N_H$ and converge towards the values previously determined for translucent lines of sight. We determine an upper limit for the polarization fraction in extinction of 13%, compatible with the $p_\mathrm{max}$ observed in emission. These results provide strong constraints for models of Galactic dust in diffuse gas.

Published
2018

4. Planck intermediate results XV. A study of anomalous microwave emission in Galactic clouds (vol 565, A103, 2014)

Author

Ade, PAR, Aghanim, N, Alves, MIR, Arnaud, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Battaner, E, Benabed, K, Benoit-Levy, A, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bobin, J, Bonaldi, A, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Burigana, C, Cardoso, J-F, Casassus, S, Catalano, A, Chamballu, A, Chen, X, Chiang, HC, Chiang, L-Y, Christensen, PR, Clements, DL, Colombi, S, Colombo, LPL, Couchot, F, Crill, BP, Cuttaia, F, Danese, L, Davies, RD, Davis, RJ, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Desert, F-X, Dickinson, C, Diego, JM, Donzelli, S, Dore, O, Dupac, X, Ensslin, TA, Eriksen, HK, Finelli, F, Forni, O, Franceschi, E, Galeotta, S, Ganga, K, Genova-Santos, RT, Ghosh, T, Giard, M, Gonzalez-Nuevo, J, Gorski, KM, Gregorio, A, Gruppuso, A, Hansen, FK, Harrison, DL, Helou, G, Hernandez-Monteagudo, C, Hildebrandt, SR, Hivon, E, Hobson, M, Hornstrup, A, Jaffe, AH, Jaffe, TR, Jones, WC, Keihanen, E, Keskitalo, R, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lahteenmaki, A, Lamarre, J-M, Lasenby, A, Lawrence, CR, Leonardi, R, Liguori, M, Lilje, PB, Linden-Vornle, M, Lopez-Caniego, M, Macias-Perez, JF, Maffei, B, Maino, D, Mandolesi, N, Marshall, DJ, Martin, PG, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Mazzotta, P, Meinhold, PR, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Miville-Deschenes, M-A, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Naselsky, P, Nati, F, Natoli, P, Norgaard-Nielsen, HU, Noviello, F, Novikov, D, Novikov, I, Oxborrow, CA, Pagano, L, Pajot, F, Paladini, R, Paoletti, D, Patanchon, G, Pearson, TJ, Peel, M, Perdereau, O, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Pratt, GW, Prunet, S, Puget, J-L, Rachen, JP, Rebolo, R, Reich, W, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rubino-Martin, JA, Rusholme, B, Sandri, M, Savini, G, Scott, D, Spencer, LD, Stolyarov, V, Sutton, D, Suur-Uski, A-S, Sygnet, J-F, Tauber, JA, Tavagnacco, D, Terenzi, L, Tibbs, CT, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Valenziano, L, Valiviita, J, Van Tent, B, Varis, J, Verstraete, L, Vielva, P, Villa, F, Wandelt, BD, Watson, R, Wilkinson, A, Ysard, N, Yvon, D, Zacchei, A, Zonca, A, Science and Technology Facilities Council (STFC), and Science and Technology Facilities Council [2006-2012]

Subjects
HII regions, Science & Technology, CENTIMETER-WAVE CONTINUUM, astro-ph.GA, radiation mechanisms: general, Astronomy & Astrophysics, SMALL ARRAY, STAR-FORMATION, radio continuum: ISM, submillimeter: ISM, errata, addenda, Settore FIS/05 - Astronomia e Astrofisica, GHZ SKY SURVEY, Physical Sciences, PROBE WMAP OBSERVATIONS, 0201 Astronomical and Space Sciences, MOLECULAR CLOUDS, PRE-LAUNCH STATUS, ANISOTROPY-PROBE, SPINNING DUST EMISSION, H-II, addenda, errata
Abstract

This article is an erratum for: https://doi.org/10.1051/0004-6361/201322612

Published
2018

5. Planck intermediate results. XXXIX. The Planck list of high-redshift source candidates

Author

Collaboration, P, Ade, PAR, Aghanim, N, Arnaud, M, Aumont, J, Baccigalupi, C, Banday, AJ, Barreiro, RB, Bartolo, N, Battaner, E, Benabed, K, Benoit-Lévy, A, Bernard, J-P, Bersanelli, M, Bielewicz, P, Bonaldi, A, Bonavera, L, Bond, JR, Borrill, J, Bouchet, FR, Boulanger, F, Burigana, C, Butler, RC, Calabrese, E, Catalano, A, Chiang, HC, Christensen, PR, Clements, DL, Colombo, LPL, Couchot, F, Coulais, A, Crill, BP, Curto, A, Cuttaia, F, Danese, L, Davies, RD, Davis, RJ, Bernardis, PD, Rosa, AD, Zotti, GD, Delabrouille, J, Dickinson, C, Diego, JM, Dole, H, Doré, O, Douspis, M, Ducout, A, Dupac, X, Elsner, F, Enßlin, TA, Eriksen, HK, Falgarone, E, Finelli, F, Flores-Cacho, I, Frailis, M, Fraisse, AA, Franceschi, E, Galeotta, S, Galli, S, Ganga, K, Giard, M, Giraud-Héraud, Y, Gjerløw, E, González-Nuevo, J, Górski, KM, Gregorio, A, Gruppuso, A, Gudmundsson, JE, Hansen, FK, Harrison, DL, Helou, G, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, SR, Hivon, E, Hobson, M, Hornstrup, A, Hovest, W, Huffenberger, KM, Hurier, G, Jaffe, AH, Jaffe, TR, Keihänen, E, Keskitalo, R, Kisner, TS, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J-M, Lasenby, A, Lattanzi, M, Lawrence, CR, Leonardi, R, Levrier, F, Lilje, PB, Linden-Vørnle, M, López-Caniego, M, Lubin, PM, Macías-Pérez, JF, Maffei, B, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, Maris, M, Martin, PG, Martínez-González, E, Masi, S, Matarrese, S, Melchiorri, A, Mennella, A, Migliaccio, M, Mitra, S, Miville-Deschênes, M-A, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Murphy, JA, Nati, F, Natoli, P, Nesvadba, NPH, Noviello, F, Novikov, D, Novikov, I, Oxborrow, CA, Pagano, L, Pajot, F, Paoletti, D, Partridge, B, Pasian, F, Pearson, TJ, Perdereau, O, Perotto, L, Pettorino, V, Piacentini, F, Piat, M, Plaszczynski, S, Pointecouteau, E, Polenta, G, Pratt, GW, Prunet, S, Puget, J-L, Rachen, JP, Reinecke, M, Remazeilles, M, Renault, C, Renzi, A, Ristorcelli, I, Rocha, G, Rosset, C, Rossetti, M, Roudier, G, Rubiño-Martín, JA, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Savini, G, Scott, D, Spencer, LD, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Suur-Uski, A-S, Sygnet, J-F, Tauber, JA, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Türler, M, Umana, G, Valenziano, L, Valiviita, J, Tent, BV, Vielva, P, Villa, F, Wade, LA, Wandelt, BD, Wehus, IK, Welikala, N, Yvon, D, Zacchei, A, Zonca, A, Science and Technology Facilities Council (STFC), and Science and Technology Facilities Council [2006-2012]

Subjects
astro-ph.GA, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

The Planck mission, thanks to its large frequency range and all-sky coverage, has a unique potential for systematically detecting the brightest, and rarest, submillimetre sources on the sky, including distant objects in the high-redshift Universe traced by their dust emission. A novel method, based on a component-separation procedure using a combination of Planck and IRAS data, has been applied to select the most luminous cold submm sources with spectral energy distributions peaking between 353 and 857GHz at 5' resolution. A total of 2151 Planck high-z source candidates (the PHZ) have been detected in the cleanest 26% of the sky, with flux density at 545GHz above 500mJy. Embedded in the cosmic infrared background close to the confusion limit, these high-z candidates exhibit colder colours than their surroundings, consistent with redshifts z>2, assuming a dust temperature of 35K and a spectral index of 1.5. First follow-up observations obtained from optical to submm have confirmed that this list consists of two distinct populations. A small fraction (around 3%) of the sources have been identified as strongly gravitationally lensed star-forming galaxies, which are amongst the brightest submm lensed objects (with flux density at 545GHz ranging from 350mJy up to 1Jy) at redshift 2 to 4. However, the vast majority of the PHZ sources appear as overdensities of dusty star-forming galaxies, having colours consistent with z>2, and may be considered as proto-cluster candidates. The PHZ provides an original sample, complementary to the Planck Sunyaev-Zeldovich Catalogue; by extending the population of the virialized massive galaxy clusters to a population of sources at z>1.5, the PHZ may contain the progenitors of today's clusters. Hence the PHZ opens a new window on the study of the early ages of structure formation, and the understanding of the intensively star-forming phase at high-z.

Published
2016

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