Imperial College London
Alternate

Professor Andrew H Jaffe

Faculty of Natural Sciences, Department of Physics

Professor of Astrophysics and Cosmology
 
 
 
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Contact

 

+44 (0)20 7594 7526a.jaffe Website

 
 
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Assistant

 

Miss Louise Hayward +44 (0)20 7594 7679

 
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Location

 

1018BBlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ade:2016:0004-6361/201425305,
author = {Ade, PAR and Aghanim, N and Alves, MIR and Arnaud, M and Arzoumanian, D and Aumont, J and Baccigalupi, C and Banday, AJ and Barreiro, RB and Bartolo, N and Battaner, E and Benabed, K and Benoit-Levy, A and Bernard, J-P and Berne, O and Bersanelli, M and Bielewicz, P and Bonaldi, A and Bonavera, L and Bond, JR and Borrill, J and Bouchet, FR and Boulanger, F and Bracco, A and Burigana, C and Calabrese, E and Cardoso, J-F and Catalano, A and Chamballu, A and Chiang, HC and Christensen, PR and Clements, DL and Colombi, S and Colombo, LPL and Combet, C and Couchot, F and Crill, BP and Curto, A and Cuttaia, F and Danese, L and Davies, RD and Davis, RJ and de, Bernardis P and de, Rosa A and de, Zotti G and Delabrouille, J and Dickinson, C and Diego, JM and Donzelli, S and Dore, O and Douspis, M and Ducout, A and Dupac, X and Elsner, F and Ensslin, TA and Eriksen, HK and Falgarone, E and Ferriere, K and Finelli, F and Forni, O and Frailis, M and Fraisse, AA and Franceschi, E and Frejse, A and },
doi = {0004-6361/201425305},
journal = {Astronomy & Astrophysics},
title = {Planck intermediate results XXXIII. Signature of the magnetic field geometry of interstellar filaments in dust polarization maps},
url = {http://dx.doi.org/10.1051/0004-6361/201425305},
volume = {586},
year = {2016}
}
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TY  - JOUR
AB  - Planck observations at 353 GHz provide the first fully sampled maps of the polarized dust emission towards interstellar filaments and their backgrounds (i.e., the emission observed in the surroundings of the filaments). The data allow us to determine the intrinsic polarization properties of the filaments and therefore to provide insight into the structure of their magnetic field (B). We present the polarization maps of three nearby (several parsecs long) star-forming filaments of moderate column density (NH about 1022 cm-2): Musca, B211, and L1506. These three filaments are detected above the background in dust total and polarized emission. We use the spatial information to separate Stokes I, Q, and U of the filaments from those of their backgrounds, an essential step in measuring the intrinsic polarization fraction (p) and angle (ψ) of each emission component. We find that the polarization angles in the three filaments (ψfil) are coherent along their lengths and not the same as in their backgrounds (ψbg). The differences between ψfil and ψbg are 12° and 54° for Musca and L1506, respectively, and only 6° in the case of B211. These differences forMusca and L1506 are larger than the dispersions of ψ, both along the filaments and in their backgrounds. The observed changes of ψ are direct evidence of variations of the orientation of the plane of the sky (POS) projection of the magnetic field. As in previous studies, we find a decrease of several per cent in p with NH from the backgrounds to the crest of the filaments. We show that the bulk of the drop in p within the filaments cannot be explained by random fluctuations of the orientation of the magnetic field because they are too small (σψ< 10°). We recognize the degeneracy between the dust alignment efficiency (by, e.g., radiative torques) and the structure of the B-field in causing variations in p, but we argue that the decrease in p from the backg
AU  - Ade,PAR
AU  - Aghanim,N
AU  - Alves,MIR
AU  - Arnaud,M
AU  - Arzoumanian,D
AU  - Aumont,J
AU  - Baccigalupi,C
AU  - Banday,AJ
AU  - Barreiro,RB
AU  - Bartolo,N
AU  - Battaner,E
AU  - Benabed,K
AU  - Benoit-Levy,A
AU  - Bernard,J-P
AU  - Berne,O
AU  - Bersanelli,M
AU  - Bielewicz,P
AU  - Bonaldi,A
AU  - Bonavera,L
AU  - Bond,JR
AU  - Borrill,J
AU  - Bouchet,FR
AU  - Boulanger,F
AU  - Bracco,A
AU  - Burigana,C
AU  - Calabrese,E
AU  - Cardoso,J-F
AU  - Catalano,A
AU  - Chamballu,A
AU  - Chiang,HC
AU  - Christensen,PR
AU  - Clements,DL
AU  - Colombi,S
AU  - Colombo,LPL
AU  - Combet,C
AU  - Couchot,F
AU  - Crill,BP
AU  - Curto,A
AU  - Cuttaia,F
AU  - Danese,L
AU  - Davies,RD
AU  - Davis,RJ
AU  - de,Bernardis P
AU  - de,Rosa A
AU  - de,Zotti G
AU  - Delabrouille,J
AU  - Dickinson,C
AU  - Diego,JM
AU  - Donzelli,S
AU  - Dore,O
AU  - Douspis,M
AU  - Ducout,A
AU  - Dupac,X
AU  - Elsner,F
AU  - Ensslin,TA
AU  - Eriksen,HK
AU  - Falgarone,E
AU  - Ferriere,K
AU  - Finelli,F
AU  - Forni,O
AU  - Frailis,M
AU  - Fraisse,AA
AU  - Franceschi,E
AU  - Frejse,A
AU  - Galeotta,S
AU  - Galli,S
AU  - Ganga,K
AU  - Ghosh,T
AU  - Giard,M
AU  - Giraud-Heraud,Y
AU  - Gjerlow,E
AU  - Gonzalez-Nuevo,J
AU  - Gorski,KM
AU  - Gregorio,A
AU  - Gruppuso,A
AU  - Guillet,V
AU  - Hansen,FK
AU  - Hanson,D
AU  - Harrison,DL
AU  - Hernandez-Monteagudo,C
AU  - Herranz,D
AU  - Hildebrandt,SR
AU  - Hivon,E
AU  - Hobson,M
AU  - Holmes,WA
AU  - Huffenberger,KM
AU  - Hurier,G
AU  - Jaffe,AH
AU  - Jaffe,TR
AU  - Jones,WC
AU  - Juvela,M
AU  - Keskitalo,R
AU  - Kisner,TS
AU  - Knoche,J
AU  - Kunz,M
AU  - Kurki-Suonio,H
AU  - Lagache,G
AU  - Lamarre,J-M
AU  - Lasenby,A
AU  - Lawrence,CR
AU  - Leonardi,R
AU  - Levrier,F
AU  - Liguori,M
AU  - Lilje,PB
AU  - Linden-Vornle,M
AU  - Lopez-Caniego,M
AU  - Lubin,PM
AU  - Macias-Perez,JF
AU  - Maffei,B
AU  - Mandolesi,N
AU  - Mangilli,A
AU  - Maris,M
AU  - Martin,PG
AU  - Martinez-Gonzalez,E
AU  - Masi,S
AU  - Matarrese,S
AU  - Mazzotta,P
AU  - Melchiorri,A
AU  - mendes,L
AU  - Mennella,A
AU  - Migliaccio,M
AU  - Mitra,S
AU  - Miville-Deschenes,M-A
AU  - moneti,A
AU  - Montier,L
AU  - Morgante,G
AU  - Mortlock,D
AU  - Munshi,D
AU  - Murphy,JA
AU  - Naselsky,P
AU  - Nati,F
AU  - Natoli,P
AU  - Nirgaard-Nielsen,HU
AU  - Noviello,F
AU  - Novikov,D
AU  - Novikov,I
AU  - Oppermann,N
AU  - Pagano,L
AU  - Pajot,F
AU  - Paladini,R
AU  - Paoletti,D
AU  - Pasian,F
AU  - Perrotta,F
AU  - Pettorino,V
AU  - Piacentini,F
AU  - Piat,M
AU  - Pierpaoli,E
AU  - Pietrobon,D
AU  - Plaszczynski,S
AU  - Pointecouteau,E
AU  - Polenta,G
AU  - Pratt,GW
AU  - Puget,J-L
AU  - Rachen,JP
AU  - Rebolo,R
AU  - Reinecke,M
AU  - Remazeilles,M
AU  - Renault,C
AU  - Renzi,A
AU  - Ricciardi,S
AU  - Ristorcelli,I
AU  - Rocha,G
AU  - Rosset,C
AU  - Rossetti,M
AU  - Roudier,G
AU  - Rubino-Martin,JA
AU  - Rusholme,B
AU  - Sandri,M
DO  - 0004-6361/201425305
PY  - 2016///
SN  - 1432-0746
TI  - Planck intermediate results XXXIII. Signature of the magnetic field geometry of interstellar filaments in dust polarization maps
T2  - Astronomy & Astrophysics
UR  - http://dx.doi.org/10.1051/0004-6361/201425305
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000369715900146&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/43612
VL  - 586
ER  -
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