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Paper   IPM / Astronomy / 15829
School of Astronomy
  Title:   Probing the cold magnetized Universe with SPICA-POL (B-BOP)
1.  Ph. Andre
2.  A. Hughes
3.  V. Guillet
4.  F. Boulanger
5.  A. Bracco
6.  E. Ntormousi
7.  D. Arzoumanian
8.  A.J. Maury
9.  J.-Ph. Bernard
10.  S. Bontemps
11.  I. Ristorcelli
12.  J.M. Girart
13.  F. Motte
14.  K. Tassis
15.  E. Pantin
16.  T. Montmerle
17.  D. Johnstone
18.  S. Gabici
19.  A. Efstathiou
20.  Shantanu . Basu
21.  M. Bethermin
22.  H. Beuther
23.  J. Braine
24.  J. Di Francesco
25.  E. Falgarone
26.  K. Ferriere
27.  A. Fletcher
28.  M. Galametz
29.  M. Giard
30.  P. Hennebelle
31.  A. Jones
32.  A.A. Kepley
33.  J. Kwon
34.  G. Lagache
35.  P. Lesaffre
36.  F. Levrier
37.  D. Li
38.  Z.-Y. Li
39.  S.A. Mao
40.  T. Nakagawa
41.  T. Onaka
42.  R. Paladino
43.  N. Peretto
44.  A. Poglitsch
45.  V. Reveret
46.  L. Rodriguez
47.  M. Sauvage
48.  J.D. Soler
49.  L. Spinoglio
50.  F. Tabatabaei
51.  A. Tritsis
52.  F. van der Tak
53.  D. Ward-Thompson
54.  H. Wiesemeyer
55.  N. Ysard
56.  H. Zhang
  Status:   Published
  Journal: Astronomical Society of Australia
  Vol.:  36
  Year:  2019
  Supported by:            ipm IPM
Space Infrared Telescope for Cosmology and Astrophysics (SPICA), the cryogenic infrared space telescope recently pre-selected for a �??Phase A�?? concept study as one of the three remaining candidates for European Space Agency (ESA's) fifth medium class (M5) mission, is foreseen to include a far-infrared polarimetric imager [SPICA-POL, now called B-fields with BOlometers and Polarizers (B-BOP)], which would offer a unique opportunity to resolve major issues in our understanding of the nearby, cold magnetised Universe. This paper presents an overview of the main science drivers for B-BOP, including high dynamic range polarimetric imaging of the cold interstellar medium (ISM) in both our Milky Way and nearby galaxies. Thanks to a cooled telescope, B-BOP will deliver wide-field 100�??350 m images of linearly polarised dust emission in Stokes Q and U with a resolution, signal-to-noise ratio, and both intensity and spatial dynamic ranges comparable to those achieved by Herschel images of the cold ISM in total intensity (Stokes I). The B-BOP 200 m images will also have a factor 30 higher resolution than Planck polarisation data. This will make B-BOP a unique tool for characterising the statistical properties of the magnetised ISM and probing the role of magnetic fields in the formation and evolution of the interstellar web of dusty molecular filaments giving birth to most stars in our Galaxy. B-BOP will also be a powerful instrument for studying the magnetism of nearby galaxies and testing Galactic dynamo models, constraining the physics of dust grain alignment, informing the problem of the interaction of cosmic rays with molecular clouds, tracing magnetic fields in the inner layers of protoplanetary disks, and monitoring accretion bursts in embedded protostars.

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