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Chandrasekhar–Fermi method

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Heitsch, Fabian; Zweibel, Ellen G.; Mac Low, Mordecai-Mark; Li, Pakshing; Norman, Michael L. (10 November 2001). "Magnetic Field Diagnostics Based on Far-Infrared Polarimetry: Tests Using Numerical Simulations".
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Ostriker, Eve C.; Stone, James M.; Gammie, Charles F. (10 January 2001). "Density, Velocity, and Magnetic Field Structure in Turbulent Molecular Cloud Models".
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Padoan, Paolo; Goodman, Alyssa; Draine, B. T.; Juvela, Mika; Nordlund, Ake; Rognvaldsson, Ornolfur Einar (October 2001).
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is a method that is used to calculate the mean strength of the interstellar magnetic field that is projected on the
35: 472:"SCUBA Polarization Measurements of the Magnetic Field Strengths in the L183, L1544, and L43 Prestellar Cores" 508: 171: 220: 177: 442: 403: 362: 150: 483: 452: 413: 372: 332: 299: 268: 31: 130: 200: 45: 502: 470:
Crutcher, Richard M.; Nutter, D. J.; Ward-Thompson, D.; Kirk, J. M. (January 2004).
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Davis, Leverett (1 March 1951). "The Strength of Interstellar Magnetic Fields".
272: 34:. The method was described by Leverett Davis Jr in 1951 and independently by 447: 408: 367: 392:"Theoretical Models of Polarized Dust Emission from Protostellar Cores" 117:{\displaystyle B=Q{\sqrt {4\pi \rho }}{\frac {\delta v}{\delta \phi }}} 488: 471: 456: 418: 391: 376: 337: 320: 304: 287: 243:. The method is also employed for prestellar molecular clouds. 286:
Davis, Leverett Jr.; Greenstein, Jesse L. (September 1951).
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is an order unity factor, which is typically taken it to be
288:"The Polarization of Starlight by Aligned Dust Grains" 42:
in 1953. According to this method, the magnetic field
223: 203: 180: 153: 133: 71: 48: 235: 209: 189: 162: 139: 116: 54: 197:is the dispersion of polarization angles and 8: 319:Chandrasekhar, S.; Fermi, E. (July 1953). 487: 446: 417: 407: 366: 336: 303: 222: 202: 179: 152: 132: 94: 81: 70: 47: 251: 7: 62:in the plane of the sky is given by 14: 321:"Magnetic Fields in Spiral Arms" 28:Davis–Chandrasekhar–Fermi method 1: 236:{\displaystyle Q\approx 0.5} 190:{\displaystyle \delta \phi } 530: 36:Subrahmanyan Chandrasekhar 20:Chandrasekhar–Fermi method 476:The Astrophysical Journal 435:The Astrophysical Journal 396:The Astrophysical Journal 355:The Astrophysical Journal 325:The Astrophysical Journal 292:The Astrophysical Journal 273:10.1103/PhysRev.81.890.2 163:{\displaystyle \delta v} 514:Equations of astronomy 237: 211: 191: 164: 141: 118: 56: 238: 212: 192: 170:is the line-of-sight 165: 147:is the mass density, 142: 140:{\displaystyle \rho } 119: 57: 16:Astrophysics equation 221: 201: 178: 151: 131: 69: 46: 172:velocity dispersion 233: 207: 187: 160: 137: 114: 52: 210:{\displaystyle Q} 112: 92: 55:{\displaystyle B} 521: 494: 493: 491: 467: 461: 460: 450: 448:astro-ph/0008454 430: 424: 423: 421: 411: 409:astro-ph/0104231 402:(2): 1005–1018. 387: 381: 380: 370: 368:astro-ph/0103286 349: 343: 342: 340: 316: 310: 309: 307: 283: 277: 276: 256: 242: 240: 239: 234: 216: 214: 213: 208: 196: 194: 193: 188: 169: 167: 166: 161: 146: 144: 143: 138: 123: 121: 120: 115: 113: 111: 103: 95: 93: 82: 61: 59: 58: 53: 32:plane of the sky 529: 528: 524: 523: 522: 520: 519: 518: 499: 498: 497: 469: 468: 464: 441:(2): 980–1005. 432: 431: 427: 389: 388: 384: 351: 350: 346: 318: 317: 313: 285: 284: 280: 261:Physical Review 258: 257: 253: 249: 219: 218: 199: 198: 176: 175: 149: 148: 129: 128: 104: 96: 67: 66: 44: 43: 17: 12: 11: 5: 527: 525: 517: 516: 511: 501: 500: 496: 495: 489:10.1086/379705 482:(1): 279–285. 462: 457:10.1086/318290 425: 419:10.1086/322504 382: 377:10.1086/323489 361:(2): 800–814. 344: 338:10.1086/145731 311: 305:10.1086/145464 278: 267:(5): 890–891. 250: 248: 245: 232: 229: 226: 206: 186: 183: 159: 156: 136: 125: 124: 110: 107: 102: 99: 91: 88: 85: 80: 77: 74: 51: 15: 13: 10: 9: 6: 4: 3: 2: 526: 515: 512: 510: 507: 506: 504: 490: 485: 481: 477: 473: 466: 463: 458: 454: 449: 444: 440: 436: 429: 426: 420: 415: 410: 405: 401: 397: 393: 386: 383: 378: 374: 369: 364: 360: 356: 348: 345: 339: 334: 330: 326: 322: 315: 312: 306: 301: 297: 293: 289: 282: 279: 274: 270: 266: 262: 255: 252: 246: 244: 230: 227: 224: 204: 184: 181: 173: 157: 154: 134: 108: 105: 100: 97: 89: 86: 83: 78: 75: 72: 65: 64: 63: 49: 41: 37: 33: 29: 25: 21: 509:Astrophysics 479: 475: 465: 438: 434: 428: 399: 395: 385: 358: 354: 347: 328: 324: 314: 295: 291: 281: 264: 260: 254: 126: 40:Enrico Fermi 27: 23: 19: 18: 503:Categories 247:References 228:≈ 185:ϕ 182:δ 155:δ 135:ρ 109:ϕ 106:δ 98:δ 90:ρ 87:π 24:CF method 331:: 113. 298:: 206. 127:where 443:arXiv 404:arXiv 363:arXiv 174:and 38:and 484:doi 480:600 453:doi 439:546 414:doi 400:559 373:doi 359:561 333:doi 329:118 300:doi 296:114 269:doi 231:0.5 26:or 22:or 505:: 478:. 474:. 451:. 437:. 412:. 398:. 394:. 371:. 357:. 327:. 323:. 294:. 290:. 265:81 263:. 492:. 486:: 459:. 455:: 445:: 422:. 416:: 406:: 379:. 375:: 365:: 341:. 335:: 308:. 302:: 275:. 271:: 225:Q 205:Q 158:v 101:v 84:4 79:Q 76:= 73:B 50:B

Index

plane of the sky
Subrahmanyan Chandrasekhar
Enrico Fermi
velocity dispersion
doi
10.1103/PhysRev.81.890.2
"The Polarization of Starlight by Aligned Dust Grains"
doi
10.1086/145464
"Magnetic Fields in Spiral Arms"
doi
10.1086/145731
arXiv
astro-ph/0103286
doi
10.1086/323489
"Theoretical Models of Polarized Dust Emission from Protostellar Cores"
arXiv
astro-ph/0104231
doi
10.1086/322504
arXiv
astro-ph/0008454
doi
10.1086/318290
"SCUBA Polarization Measurements of the Magnetic Field Strengths in the L183, L1544, and L43 Prestellar Cores"
doi
10.1086/379705
Categories
Astrophysics

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