Abstract
Using polarimetry, at both visible and submillimeter wavelengths, we propose to study the role and to compare the structure of the magnetic fields within and near filamentary molecular clouds. The optical polarization data obtained at Mont Mégantic and from the Heiles catalog constrain the large scale topology of magnetic fields in the near environment of the clouds. Submillimeter data probe the structure of the field at smaller scale within the clouds. The aim of this research is to put constraints on the way the magnetic field threading the filaments connects to larger structures in the ISM. This should help to illuminate the large scale topology of the field, which is crucial to understanding the formation of filaments and the role of magnetic fields within these structures. Two different regions have been selected for this project, OMC where star formation actively occurs and CL04/CL21 which is a cold molecular filament in the earliest stages of stellar formation.
Similar content being viewed by others
References
Bally, J. and Johnstone, D.: 1999, ApJ 510, L49.
Bally, J., Stark, A.A., Wilson, R.W. and Langer, W.D.: 1987, ApJ 312L, 45.
Breger, M.: 1976, ApJ 204, 789.
Carey, S.J., Egan, M.P., Kuchar, T.A., Mizuno, D., Feldman, P.A., Redman, R.O. and Price, S.D.: 2000, AAS 197.2703B.
Carey, S.J., Feldman, P.A., Redman, R.O., Egan, M.P., Mizuno, D., Kuchar, T. and Price, S.: 1999, AAS 195.8815C.
Castets, A. and Langer, W.D.: 1995, A&A 294, 835.
Cesaroni, R. and Wilson, T.L.: 1994, A&A 281, 209.
Chini, R., Reipurth, Bo, Ward-Thompson, D., Bally, J., Nyman, L.-A., Sievers, A. and Billawala, Y.: 1997, ApJ 474, 135.
Crutcher, R.M.: 1999, ApJ 520, 706.
Dutrey, A., Castets, A., Duvert, G., Bally, J., Langer, W.D. and Wilson, R.W.: 1991, IAUS 147, 405.
Egan, M.P., Shipman, R.F., Price, S.D., Carey, S.J., Clarck, F.O. and Cohen, M.: 1998, ApJ 494, L199.
Evans, N.J., II.: 1999, ARAA 37, 311–62.
Fiege, J.D. and Pudritz, R.E.: 2000, MNRAS 311, 105.
Fiege, J.D. and Pudritz, R.E.: 2000, MNRAS 311, 85.
Fiege, J.D. and Pudritz, R.E.: 2000, ApJ 544, 830.
Heiles, C.: 2000, AJ 199, 923.
Heitsch, F., Zweibel, E.G., Mac Low, M.M., Li, P. and Norman, M.L.: 2001, ApJ 561, 800.
Matthews, B.C., Wilson, C.D. and Fiege, J.D.: 2001, ApJ 562, 400.
Matthews, B.C. and Wilson, C.D.: 2000, ApJ 531, 868.
Myers, P.C., Fuller, G.A., Goodman, A.A. and Benson, P.J.: 1991, ApJ 376, 561.
Padoan, P., Goodman, A., Draine, B.T., Juvela, M., Nordlund, A. and Rögnvaldsson, Ö.E.: 2001, ApJ 559, 1005.
Schleuning, D.A.: 1998, ApJ 493, 811.
Schneider, S. and Elmegreen, B.G.: 1979, ApJ 41, 87.
Stodlkiewicz, J.S.: 1963, AcA 13, 30.
Tatematsu, K., Umemoto, T., Kameya, O., Hirano, N., Hasegawa, T., Hayashi, M., Iwata, T., Kaifu, N., Mikami, H., Murata, Y., Nakano, M., Nakano, T., Ohashi, N., Sunada, K., Takaba, H. and Yamamoto, S.: 1993, ApJ 404, 643.
Vallée, J.P. and Bastien. P.: 1999, ApJ 526, 819.
Yu, K.C., Bally, J. and Devine, D.: 1997, ApJ 485, 45.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Poidevin, F., Bastien, P. Multi-Scale Analysis of Magnetic Fields in Filamentary Molecular Clouds. Astrophysics and Space Science 292, 173–178 (2004). https://doi.org/10.1023/B:ASTR.0000045015.23162.86
Issue Date:
DOI: https://doi.org/10.1023/B:ASTR.0000045015.23162.86