Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies
Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For this purpose, we implement a specifically tailored component-separation method, the so-called generalized needlet internal linear combination...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
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EDP Sciences
2016
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| Online Access: | https://eprints.nottingham.ac.uk/42448/ |
| _version_ | 1848796489718956032 |
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| author | Aghanim, N. Ashdown, M. Aumont, J. Baccigalupi, C. Ballardini, M. Banday, A.J. Barreiro, R.B. Bartolo, N. Basak, S. Benabed, K. Bernard, J.-P. Bersanelli, M. Bielewicz, P. Bonavera, L. Bond, J.R. Borrill, J. Bouchet, F.R. Boulanger, F. Burigana, C. Calabrese, E. Cardoso, J.-F. Carron, J. Chiang, H.C. Colombo, L.P.L. Comis, B. Couchot, F. Coulais, A. Crill, B.P. Curto, A. Cuttaia, F. de Bernardis, P. de Zotti, G. Delabrouille, J. Di Valentino, E. Dickinson, C. Diego, J.M. Doré, O. Douspis, M. Ducout, A. Dupac, X. Dusini, S. Elsner, F. Enßlin, T.A. Eriksen, H.K. Falgarone, E. Fantaye, Y. Finelli, F. Forastieri, F. Frailis, M. Fraisse, A.A. Franceschi, E. Frolov, A. Galeotta, S. Galli, S. Ganga, K. Génova-Santos, R.T. Gerbino, M. Ghosh, T. Giraud-Héraud, Y. González-Nuevo, J. Górski, K.M. Gruppuso, A. Gudmundsson, J.E. Hansen, F.K. Helou, G. Henrot-Versillé, S. Herranz, D. Hivon, E. Huang, Z. Jaffe, A.H. Jones, W.C. Keihänen, E. Keskitalo, R. Kiiveri, K. Kisner, T.S. Krachmalnicoff, N. Kunz, M. Kurki-Suonio, H. Lamarre, J.-M. Langer, M. Lasenby, A. Lattanzi, M. Lawrence, C.R. Le Jeune, M. Levrier, F. Lilje, P.B. Lilley, M. Lindholm, V. López-Caniego, M. Ma, Y.-Z. Macías-Pérez, J.F. Maggio, G. Maino, D. Mandolesi, N. Mangilli, A. Maris, M. Martin, P.G. Martínez-González, E. Matarrese, S. Mauri, N. McEwen, J.D. Melchiorri, A. Mennella, A. Migliaccio, M. Miville-Deschênes, M.-A. Molinari, D. Moneti, A. Montier, L. Morgante, G. Moss, A. Natoli, P. Oxborrow, C.A. Pagano, L. Paoletti, D. Patanchon, G. Perdereau, O. Perotto, L. Pettorino, V. Piacentini, F. Plaszczynski, S. Polastri, L. Polenta, G. Puget, J.-L. Rachen, J.P. Racine, B. Reinecke, M. Remazeilles, M. Renzi, A. Rocha, G. Rosset, C. Rossetti, M. Roudier, G. Rubiño-Martín, J.A. Ruiz-Granados, B. Salvati, L. Sandri, M. Savelainen, M. Scott, D. Sirignano, C. Sirri, G. Soler, J.D. Spencer, L.D. Suur-Uski, A.-S. Tauber, J.A. Tavagnacco, D. Tenti, M. Toffolatti, L. Tomasi, M. Tristram, M. Trombetti, T. Valiviita, J. Van Tent, F. Vielva, P. Villa, F. Vittorio, N. Wandelt, B.D. Wehus, I.K. Zacchei, A. Zonca, A. |
| author_facet | Aghanim, N. Ashdown, M. Aumont, J. Baccigalupi, C. Ballardini, M. Banday, A.J. Barreiro, R.B. Bartolo, N. Basak, S. Benabed, K. Bernard, J.-P. Bersanelli, M. Bielewicz, P. Bonavera, L. Bond, J.R. Borrill, J. Bouchet, F.R. Boulanger, F. Burigana, C. Calabrese, E. Cardoso, J.-F. Carron, J. Chiang, H.C. Colombo, L.P.L. Comis, B. Couchot, F. Coulais, A. Crill, B.P. Curto, A. Cuttaia, F. de Bernardis, P. de Zotti, G. Delabrouille, J. Di Valentino, E. Dickinson, C. Diego, J.M. Doré, O. Douspis, M. Ducout, A. Dupac, X. Dusini, S. Elsner, F. Enßlin, T.A. Eriksen, H.K. Falgarone, E. Fantaye, Y. Finelli, F. Forastieri, F. Frailis, M. Fraisse, A.A. Franceschi, E. Frolov, A. Galeotta, S. Galli, S. Ganga, K. Génova-Santos, R.T. Gerbino, M. Ghosh, T. Giraud-Héraud, Y. González-Nuevo, J. Górski, K.M. Gruppuso, A. Gudmundsson, J.E. Hansen, F.K. Helou, G. Henrot-Versillé, S. Herranz, D. Hivon, E. Huang, Z. Jaffe, A.H. Jones, W.C. Keihänen, E. Keskitalo, R. Kiiveri, K. Kisner, T.S. Krachmalnicoff, N. Kunz, M. Kurki-Suonio, H. Lamarre, J.-M. Langer, M. Lasenby, A. Lattanzi, M. Lawrence, C.R. Le Jeune, M. Levrier, F. Lilje, P.B. Lilley, M. Lindholm, V. López-Caniego, M. Ma, Y.-Z. Macías-Pérez, J.F. Maggio, G. Maino, D. Mandolesi, N. Mangilli, A. Maris, M. Martin, P.G. Martínez-González, E. Matarrese, S. Mauri, N. McEwen, J.D. Melchiorri, A. Mennella, A. Migliaccio, M. Miville-Deschênes, M.-A. Molinari, D. Moneti, A. Montier, L. Morgante, G. Moss, A. Natoli, P. Oxborrow, C.A. Pagano, L. Paoletti, D. Patanchon, G. Perdereau, O. Perotto, L. Pettorino, V. Piacentini, F. Plaszczynski, S. Polastri, L. Polenta, G. Puget, J.-L. Rachen, J.P. Racine, B. Reinecke, M. Remazeilles, M. Renzi, A. Rocha, G. Rosset, C. Rossetti, M. Roudier, G. Rubiño-Martín, J.A. Ruiz-Granados, B. Salvati, L. Sandri, M. Savelainen, M. Scott, D. Sirignano, C. Sirri, G. Soler, J.D. Spencer, L.D. Suur-Uski, A.-S. Tauber, J.A. Tavagnacco, D. Tenti, M. Toffolatti, L. Tomasi, M. Tristram, M. Trombetti, T. Valiviita, J. Van Tent, F. Vielva, P. Villa, F. Vittorio, N. Wandelt, B.D. Wehus, I.K. Zacchei, A. Zonca, A. |
| author_sort | Aghanim, N. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For this purpose, we implement a specifically tailored component-separation method, the so-called generalized needlet internal linear combination (GNILC) method, which uses spatial information (the angular powerspectra) to disentangle the Galactic dust emission and CIB anisotropies. We produce significantly improved all-sky maps of Planck thermal dust emission, with reduced CIB contamination, at 353, 545, and 857 GHz. By reducing the CIB contamination of the thermal dust maps, we provide more accurate estimates of the local dust temperature and dust spectral index over the sky with reduced dispersion, especially at high Galactic latitudes above b = ±20°. We find that the dust temperature is T = (19.4 ± 1.3) K and the dust spectral index is β = 1.6 ± 0.1 averaged over the whole sky, while T = (19.4 ± 1.5) K and β = 1.6 ± 0.2 on 21% of the sky at high latitudes. Moreover, subtracting the new CIB-removed thermal dust maps from the CMB-removed Planck maps gives access to the CIB anisotropies over 60% of the sky at Galactic latitudes |b| > 20°. Because they are a significant improvement over previous Planck products, the GNILC maps are recommended for thermal dust science. The new CIB maps can be regarded as indirect tracers of the dark matter and they are recommended for exploring cross-correlations with lensing and large-scale structure optical surveys. The reconstructed GNILC thermal dust and CIB maps are delivered as Planck products. |
| first_indexed | 2025-11-14T19:48:48Z |
| format | Article |
| id | nottingham-42448 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:48Z |
| publishDate | 2016 |
| publisher | EDP Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-424482020-05-04T18:26:22Z https://eprints.nottingham.ac.uk/42448/ Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies Aghanim, N. Ashdown, M. Aumont, J. Baccigalupi, C. Ballardini, M. Banday, A.J. Barreiro, R.B. Bartolo, N. Basak, S. Benabed, K. Bernard, J.-P. Bersanelli, M. Bielewicz, P. Bonavera, L. Bond, J.R. Borrill, J. Bouchet, F.R. Boulanger, F. Burigana, C. Calabrese, E. Cardoso, J.-F. Carron, J. Chiang, H.C. Colombo, L.P.L. Comis, B. Couchot, F. Coulais, A. Crill, B.P. Curto, A. Cuttaia, F. de Bernardis, P. de Zotti, G. Delabrouille, J. Di Valentino, E. Dickinson, C. Diego, J.M. Doré, O. Douspis, M. Ducout, A. Dupac, X. Dusini, S. Elsner, F. Enßlin, T.A. Eriksen, H.K. Falgarone, E. Fantaye, Y. Finelli, F. Forastieri, F. Frailis, M. Fraisse, A.A. Franceschi, E. Frolov, A. Galeotta, S. Galli, S. Ganga, K. Génova-Santos, R.T. Gerbino, M. Ghosh, T. Giraud-Héraud, Y. González-Nuevo, J. Górski, K.M. Gruppuso, A. Gudmundsson, J.E. Hansen, F.K. Helou, G. Henrot-Versillé, S. Herranz, D. Hivon, E. Huang, Z. Jaffe, A.H. Jones, W.C. Keihänen, E. Keskitalo, R. Kiiveri, K. Kisner, T.S. Krachmalnicoff, N. Kunz, M. Kurki-Suonio, H. Lamarre, J.-M. Langer, M. Lasenby, A. Lattanzi, M. Lawrence, C.R. Le Jeune, M. Levrier, F. Lilje, P.B. Lilley, M. Lindholm, V. López-Caniego, M. Ma, Y.-Z. Macías-Pérez, J.F. Maggio, G. Maino, D. Mandolesi, N. Mangilli, A. Maris, M. Martin, P.G. Martínez-González, E. Matarrese, S. Mauri, N. McEwen, J.D. Melchiorri, A. Mennella, A. Migliaccio, M. Miville-Deschênes, M.-A. Molinari, D. Moneti, A. Montier, L. Morgante, G. Moss, A. Natoli, P. Oxborrow, C.A. Pagano, L. Paoletti, D. Patanchon, G. Perdereau, O. Perotto, L. Pettorino, V. Piacentini, F. Plaszczynski, S. Polastri, L. Polenta, G. Puget, J.-L. Rachen, J.P. Racine, B. Reinecke, M. Remazeilles, M. Renzi, A. Rocha, G. Rosset, C. Rossetti, M. Roudier, G. Rubiño-Martín, J.A. Ruiz-Granados, B. Salvati, L. Sandri, M. Savelainen, M. Scott, D. Sirignano, C. Sirri, G. Soler, J.D. Spencer, L.D. Suur-Uski, A.-S. Tauber, J.A. Tavagnacco, D. Tenti, M. Toffolatti, L. Tomasi, M. Tristram, M. Trombetti, T. Valiviita, J. Van Tent, F. Vielva, P. Villa, F. Vittorio, N. Wandelt, B.D. Wehus, I.K. Zacchei, A. Zonca, A. Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For this purpose, we implement a specifically tailored component-separation method, the so-called generalized needlet internal linear combination (GNILC) method, which uses spatial information (the angular powerspectra) to disentangle the Galactic dust emission and CIB anisotropies. We produce significantly improved all-sky maps of Planck thermal dust emission, with reduced CIB contamination, at 353, 545, and 857 GHz. By reducing the CIB contamination of the thermal dust maps, we provide more accurate estimates of the local dust temperature and dust spectral index over the sky with reduced dispersion, especially at high Galactic latitudes above b = ±20°. We find that the dust temperature is T = (19.4 ± 1.3) K and the dust spectral index is β = 1.6 ± 0.1 averaged over the whole sky, while T = (19.4 ± 1.5) K and β = 1.6 ± 0.2 on 21% of the sky at high latitudes. Moreover, subtracting the new CIB-removed thermal dust maps from the CMB-removed Planck maps gives access to the CIB anisotropies over 60% of the sky at Galactic latitudes |b| > 20°. Because they are a significant improvement over previous Planck products, the GNILC maps are recommended for thermal dust science. The new CIB maps can be regarded as indirect tracers of the dark matter and they are recommended for exploring cross-correlations with lensing and large-scale structure optical surveys. The reconstructed GNILC thermal dust and CIB maps are delivered as Planck products. EDP Sciences 2016-12-12 Article PeerReviewed Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A.J., Barreiro, R.B., Bartolo, N., Basak, S., Benabed, K., Bernard, J.-P., Bersanelli, M., Bielewicz, P., Bonavera, L., Bond, J.R., Borrill, J., Bouchet, F.R., Boulanger, F., Burigana, C., Calabrese, E., Cardoso, J.-F., Carron, J., Chiang, H.C., Colombo, L.P.L., Comis, B., Couchot, F., Coulais, A., Crill, B.P., Curto, A., Cuttaia, F., de Bernardis, P., de Zotti, G., Delabrouille, J., Di Valentino, E., Dickinson, C., Diego, J.M., Doré, O., Douspis, M., Ducout, A., Dupac, X., Dusini, S., Elsner, F., Enßlin, T.A., Eriksen, H.K., Falgarone, E., Fantaye, Y., Finelli, F., Forastieri, F., Frailis, M., Fraisse, A.A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R.T., Gerbino, M., Ghosh, T., Giraud-Héraud, Y., González-Nuevo, J., Górski, K.M., Gruppuso, A., Gudmundsson, J.E., Hansen, F.K., Helou, G., Henrot-Versillé, S., Herranz, D., Hivon, E., Huang, Z., Jaffe, A.H., Jones, W.C., Keihänen, E., Keskitalo, R., Kiiveri, K., Kisner, T.S., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lamarre, J.-M., Langer, M., Lasenby, A., Lattanzi, M., Lawrence, C.R., Le Jeune, M., Levrier, F., Lilje, P.B., Lilley, M., Lindholm, V., López-Caniego, M., Ma, Y.-Z., Macías-Pérez, J.F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P.G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J.D., Melchiorri, A., Mennella, A., Migliaccio, M., Miville-Deschênes, M.-A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Natoli, P., Oxborrow, C.A., Pagano, L., Paoletti, D., Patanchon, G., Perdereau, O., Perotto, L., Pettorino, V., Piacentini, F., Plaszczynski, S., Polastri, L., Polenta, G., Puget, J.-L., Rachen, J.P., Racine, B., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rosset, C., Rossetti, M., Roudier, G., Rubiño-Martín, J.A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Sirignano, C., Sirri, G., Soler, J.D., Spencer, L.D., Suur-Uski, A.-S., Tauber, J.A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Tristram, M., Trombetti, T., Valiviita, J., Van Tent, F., Vielva, P., Villa, F., Vittorio, N., Wandelt, B.D., Wehus, I.K., Zacchei, A. and Zonca, A. (2016) Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies. Astronomy & Astrophysics, 596 . A109/1-A109/26. ISSN 1432-0746 cosmology: observations; methods: data analysis; ISM: general; dust extinction; infrared: diffuse background; large-scale structure of Universe http://www.aanda.org/articles/aa/abs/2016/12/aa29022-16/aa29022-16.html doi:10.1051/0004-6361/201629022 doi:10.1051/0004-6361/201629022 |
| spellingShingle | cosmology: observations; methods: data analysis; ISM: general; dust extinction; infrared: diffuse background; large-scale structure of Universe Aghanim, N. Ashdown, M. Aumont, J. Baccigalupi, C. Ballardini, M. Banday, A.J. Barreiro, R.B. Bartolo, N. Basak, S. Benabed, K. Bernard, J.-P. Bersanelli, M. Bielewicz, P. Bonavera, L. Bond, J.R. Borrill, J. Bouchet, F.R. Boulanger, F. Burigana, C. Calabrese, E. Cardoso, J.-F. Carron, J. Chiang, H.C. Colombo, L.P.L. Comis, B. Couchot, F. Coulais, A. Crill, B.P. Curto, A. Cuttaia, F. de Bernardis, P. de Zotti, G. Delabrouille, J. Di Valentino, E. Dickinson, C. Diego, J.M. Doré, O. Douspis, M. Ducout, A. Dupac, X. Dusini, S. Elsner, F. Enßlin, T.A. Eriksen, H.K. Falgarone, E. Fantaye, Y. Finelli, F. Forastieri, F. Frailis, M. Fraisse, A.A. Franceschi, E. Frolov, A. Galeotta, S. Galli, S. Ganga, K. Génova-Santos, R.T. Gerbino, M. Ghosh, T. Giraud-Héraud, Y. González-Nuevo, J. Górski, K.M. Gruppuso, A. Gudmundsson, J.E. Hansen, F.K. Helou, G. Henrot-Versillé, S. Herranz, D. Hivon, E. Huang, Z. Jaffe, A.H. Jones, W.C. Keihänen, E. Keskitalo, R. Kiiveri, K. Kisner, T.S. Krachmalnicoff, N. Kunz, M. Kurki-Suonio, H. Lamarre, J.-M. Langer, M. Lasenby, A. Lattanzi, M. Lawrence, C.R. Le Jeune, M. Levrier, F. Lilje, P.B. Lilley, M. Lindholm, V. López-Caniego, M. Ma, Y.-Z. Macías-Pérez, J.F. Maggio, G. Maino, D. Mandolesi, N. Mangilli, A. Maris, M. Martin, P.G. Martínez-González, E. Matarrese, S. Mauri, N. McEwen, J.D. Melchiorri, A. Mennella, A. Migliaccio, M. Miville-Deschênes, M.-A. Molinari, D. Moneti, A. Montier, L. Morgante, G. Moss, A. Natoli, P. Oxborrow, C.A. Pagano, L. Paoletti, D. Patanchon, G. Perdereau, O. Perotto, L. Pettorino, V. Piacentini, F. Plaszczynski, S. Polastri, L. Polenta, G. Puget, J.-L. Rachen, J.P. Racine, B. Reinecke, M. Remazeilles, M. Renzi, A. Rocha, G. Rosset, C. Rossetti, M. Roudier, G. Rubiño-Martín, J.A. Ruiz-Granados, B. Salvati, L. Sandri, M. Savelainen, M. Scott, D. Sirignano, C. Sirri, G. Soler, J.D. Spencer, L.D. Suur-Uski, A.-S. Tauber, J.A. Tavagnacco, D. Tenti, M. Toffolatti, L. Tomasi, M. Tristram, M. Trombetti, T. Valiviita, J. Van Tent, F. Vielva, P. Villa, F. Vittorio, N. Wandelt, B.D. Wehus, I.K. Zacchei, A. Zonca, A. Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies |
| title | Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies |
| title_full | Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies |
| title_fullStr | Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies |
| title_full_unstemmed | Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies |
| title_short | Planck intermediate results. XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies |
| title_sort | planck intermediate results. xlviii. disentangling galactic dust emission and cosmic infrared background anisotropies |
| topic | cosmology: observations; methods: data analysis; ISM: general; dust extinction; infrared: diffuse background; large-scale structure of Universe |
| url | https://eprints.nottingham.ac.uk/42448/ https://eprints.nottingham.ac.uk/42448/ https://eprints.nottingham.ac.uk/42448/ |