Revisiting the Magnetic Field of the L183 Starless Core
作者： Janik Karoly , Archana Soam , B-G Andersson , Simon Coudé , Pierre Bastien
关键词:
摘要: We present observations of linear polarization from dust thermal emission at 850 $\mu m$ towards the starless cloud L183. These data were obtained James Clerk Maxwell Telescope (JCMT) using Submillimetre Common-User Bolometer Array 2 (SCUBA-2) camera in conjunction with its polarimeter POL-2. Polarized traces plane-of-sky magnetic field structure cloud, thus allowing us to investigate role fields formation and evolution core. To interpret these measurements, we first calculate temperature column density L183 by fitting spectral energy distribution combining JCMT $\textit{Herschel}$ space observatory. used Davis-Chandrasekhar-Fermi technique measure strength five sub-regions find values ranging $\sim120\pm18~\mu G$ $\sim270\pm64~\mu agreement previous studies. Combined an average hydrogen ($N_{\text{H}_2}$) $\sim 1.5 \times 10^{22} $cm$^{-2}$ also that all are magnetically subcritical. results indicate is sufficiently strong oppose gravitational collapse cloud.
sci-hub.st 参考文章(62)
Chang Won Lee, Philip C. Myers, Rene Plume, A Survey for Infall Motions toward Starless Cores. III. CS (3-2) and DCO+ (2-1) Observations Astrophysical Journal Supplement Series. ,vol. 153, pp. 523- 543 ,(2004) , 10.1086/421996
Beverly T. Lynds, Catalogue of Dark Nebulae. Astrophysical Journal Supplement Series. ,vol. 7, pp. 1- ,(1962) , 10.1086/190072
B-G Andersson, A. Lazarian, John E. Vaillancourt, Interstellar Dust Grain Alignment Annual Review of Astronomy and Astrophysics. ,vol. 53, pp. 501- 539 ,(2015) , 10.1146/ANNUREV-ASTRO-082214-122414
W. B. Bonnar, Boyle's Law and gravitational instability Monthly Notices of the Royal Astronomical Society. ,vol. 116, pp. 351- 359 ,(1956) , 10.1093/MNRAS/116.3.351
Brenda C. Matthews, Christie A. McPhee, Laura M. Fissel, Rachel L. Curran, THE LEGACY OF SCUPOL: 850 μm IMAGING POLARIMETRY FROM 1997 TO 2005 Astrophysical Journal Supplement Series. ,vol. 182, pp. 143- 204 ,(2009) , 10.1088/0067-0049/182/1/143
I. M. Coulson, W. B. Doriese, C. Dunare, F. Economou, M. D. Niemack, H. A. L. Parsons, C. D. Reintsema, B. Sibthorpe, I. Smail, R. Sudiwala, H. S. Thomas, W. S. Holland, D. Bintley, E. L. Chapin, A. Chrysostomou, G. R. Davis, J. T. Dempsey, W. D. Duncan, M. Fich, P. Friberg, M. Halpern, K. D. Irwin, T. Jenness, B. D. Kelly, M. J. MacIntosh, E. I. Robson, D. Scott, P. A. R. Ade, E. Atad-Ettedgui, D. S. Berry, S. C. Craig, X. Gao, A. G. Gibb, G. C. Hilton, M. I. Hollister, J. B. Kycia, D. W. Lunney, H. McGregor, D. Montgomery, W. Parkes, R. P. J. Tilanus, J. N. Ullom, C. A. Walther, A. J. Walton, A. L. Woodcraft, M. Amiri, D. Atkinson, B. Burger, T. Chuter, SCUBA-2: the 10 000 pixel bolometer camera on the James Clerk Maxwell Telescope Monthly Notices of the Royal Astronomical Society. ,vol. 430, pp. 2513- 2533 ,(2013) , 10.1093/MNRAS/STS612
Thomas P Robitaille, Erik J Tollerud, Perry Greenfield, Michael Droettboom, Erik Bray, Tom Aldcroft, Matt Davis, Adam Ginsburg, Adrian M Price-Whelan, Wolfgang E Kerzendorf, Alexander Conley, Neil Crighton, Kyle Barbary, Demitri Muna, Henry Ferguson, Frédéric Grollier, Madhura M Parikh, Prasanth H Nair, Hans M Günther, Christoph Deil, Julien Woillez, Simon Conseil, Roban Kramer, James EH Turner, Leo Singer, Ryan Fox, Benjamin A Weaver, Victor Zabalza, Zachary I Edwards, K Azalee Bostroem, DJ Burke, Andrew R Casey, Steven M Crawford, Nadia Dencheva, Justin Ely, Tim Jenness, Kathleen Labrie, Pey Lian Lim, Francesco Pierfederici, Andrew Pontzen, Andy Ptak, Brian Refsdal, Mathieu Servillat, Ole Streicher, None, Astropy: A community Python package for astronomy Astronomy and Astrophysics. ,vol. 558, ,(2013) , 10.1051/0004-6361/201322068
Wayne S. Holland, Scuba-2: Iterative map-making with the sub-millimetre user reduction facility Monthly Notices of the Royal Astronomical Society. ,vol. 430, pp. 2545- 2573 ,(2013) , 10.1093/MNRAS/STT052
PAR Ade, Nabila Aghanim, MIR Alves, M Arnaud, D Arzoumanian, M Ashdown, J Aumont, C Baccigalupi, AJ Banday, RB Barreiro, Nicola Bartolo, E Battaner, K Benabed, A Benoît, A Benoit-Lévy, J-P Bernard, M Bersanelli, P Bielewicz, JJ Bock, L Bonavera, JR Bond, J Borrill, FR Bouchet, F Boulanger, A Bracco, C Burigana, Erminia Calabrese, J-F Cardoso, A Catalano, HC Chiang, PR Christensen, LPL Colombo, C Combet, F Couchot, BP Crill, A Curto, F Cuttaia, L Danese, RD Davies, RJ Davis, Paolo de Bernardis, A De Rosa, Giulia De Zotti, J Delabrouille, C Dickinson, JM Diego, H Dole, S Donzelli, O Doré, M Douspis, A Ducout, X Dupac, G Efstathiou, F Elsner, TA Enßlin, HK Eriksen, D Falceta-Gonçalves, E Falgarone, K Ferrière, F Finelli, O Forni, M Frailis, AA Fraisse, E Franceschi, A Frejsel, S Galeotta, S Galli, K Ganga, T Ghosh, M Giard, Eirik Gjerløw, J González-Nuevo, KM Górski, Anna Gregorio, A Gruppuso, JE Gudmundsson, V Guillet, DL Harrison, G Helou, P Hennebelle, S Henrot-Versillé, C Hernández-Monteagudo, D Herranz, SR Hildebrandt, E Hivon, WA Holmes, Allan Hornstrup, KM Huffenberger, G Hurier, AH Jaffe, TR Jaffe, William C Jones, M Juvela, E Keihänen, R Keskitalo, TS Kisner, J Knoche, M Kunz, H Kurki-Suonio, G Lagache, J-M Lamarre, A Lasenby, Massimiliano Lattanzi, CR Lawrence, R Leonardi, F Levrier, Michele Liguori, Per Barth Lilje, Michael Linden-Vørnle, M López-Caniego, PM Lubin, JF Macías-Pérez, D Maino, N Mandolesi, A Mangilli, M Maris, PG Martin, E Martínez-González, Silvia Masi, Sabino Matarrese, Alessandro Melchiorri, L Mendes, A Mennella, M Migliaccio, M-A Miville-Deschênes, A Moneti, L Montier, G Morgante, D Mortlock, D Munshi, J Anthony Murphy, P Naselsky, Federico Nati, CB Netterfield, F Noviello, D Novikov, I Novikov, N Oppermann, Carol Anne Oxborrow, Luca Pagano, Fernand Pajot, R Paladini, D Paoletti, F Pasian, L Perotto, V Pettorino, Francesco Piacentini, M Piat, E Pierpaoli, D Pietrobon, None, Planck intermediate results: XXXV. Probing the role of the magnetic field in the formation of structure in molecular clouds Astronomy and Astrophysics. ,vol. 586, pp. 1- 29 ,(2016) , 10.1051/0004-6361/201525896
Eve C. Ostriker, James M. Stone, Charles F. Gammie, DENSITY, VELOCITY, AND MAGNETIC FIELD STRUCTURE IN TURBULENT MOLECULAR CLOUD MODELS The Astrophysical Journal. ,vol. 546, pp. 980- 1005 ,(2001) , 10.1086/318290