Grupo de Ciencias Planetarias

Planetary Science Group

U.N.S.J - San Juan - Argentina

Catalogue of asteroid polarization curves

Please make reference to: R. Gil-Hutton (2017) Catalogue of asteroid polarization curves, presented at "Asteroid, Comets, Meteors 2017", Montevideo, Uruguay.

Please take into account that the catalogue only includes observations made on filters V, R or similar. There are 5 groups:

  • Group A: Asteroids with at least 5 measurements, excellent phase coverage and a polarization curve.
  • Group B: Asteroids with at least 4 measurements, good phase coverage and a polarization curve.
  • Group C: Asteroids with at least 3 measurements, regular phase coverage and a tentative polarization curve.
  • Group D: Asteroids with at least 3 measurements and bad phase coverage.
  • Group E: Asteroids with only 2 measurements.

The phase coverage is indicated in the list of objects for each group and it is characterized by a flag which indicate the existence ("X") or not ("O") of a polarimetric measurement in eight bins of phase angle (0 to 3 degrees, 3 to 6 degrees, 6 to 9 degrees, 9 to 12 degrees, 12 to 15 degrees, 15 to 18 degrees, 18 to 21 degrees and larger than 21 degrees). The most urgent group to observe is the C since the asteroids in this group require only few observations to obtain a reliable polarization curve.

The list of papers, and their codes, from which the observations were obtained are:

a: Lupishko (2019) Ast. Polarimetric Database V9.0.
b: Cellino et al. (2006) Torino Ast. Polarimetry V1.0.
c: López-Sisterna et al. (2019) AA 626, A42.
d: Cellino et al. (2019) MNRAS 485, 570.
e: Okazaki et al. (2020) PSS 180, 104774.
f: Lupishko et al. (2020) SoSyR 54, 44.
g: Kuroda et al. (2021) ApJ 911, L24.

The catalogue is updated to December, 2021.

Total number of polarimetric measurements: 3418.

Total number of asteroids with polarization curves: 125.

Total number of asteroids with polarimetric measurements: 527.

Group A:

In this group there are 37 asteroids. In this file you can find a summary for each asteroid with the minimum and maximum phase angles for which observations have been made, the total number of measurements, the flag indicating the phase angle coverage and a code indicating the group.

In the following table you can find for each asteroid a complete report, including a figure showing phase angle vs. Pr and the polarization curve, the list of available measurements with a reference to the original paper, the coefficients Coe1, Coe2 and Coe3 of the best fit and the polarimetric parameters of the object with their errors.

1 3 4 5 6 7 8
9 10 12 16 18 19 20
21 27 29 39 40 44 51
55 59 64 84 85 210 214
236 324 335 347 374 431 511
704 1021

Group B:

In this group there are 88 asteroids. In this file you can find the summary.

2 11 13 14 15 17 23
24 25 26 30 37 41 42
43 46 47 49 54 56 63
69 71 77 78 88 93 97
115 119 125 128 129 132 139
140 141 142 165 172 192 197
200 201 204 213 216 219 230
234 237 243 253 268 269 276
288 345 349 354 376 377 386
387 409 419 433 434 443 456
472 476 478 579 625 660 679
757 762 863 887 980 1459 1509
1600 1627 2867 7968

Polarimetric parameters for groups A and B:

This file lists the fit constants, their errors, and the polarimetric parameters obtained from the phase-polarization curve of the asteroids in these groups.

Group C:

In this group there are 56 asteroids. In this file you can find the summary.

22 31 48 52 57 72 75
87 92 94 96 105 130 131
134 138 158 208 238 246 313
317 339 341 350 357 367 372
381 397 402 404 420 444 466
487 502 503 584 678 729 747
753 773 796 908 1025 1036 1284
2448 2763 3086 13360 14071 16748 51068

Polarimetric parameters for group C:

This file lists the fit constants, their errors, and the polarimetric parameters obtained from the tentative phase-polarization curve of the asteroids in this group.

Group D:

In this group there are 136 asteroids. In this file you can find the summary.

34 45 53 62 67 73 76
86 89 91 95 102 113 114
118 122 123 124 126 135 147
150 152 153 161 169 170 183
184 186 188 189 194 217 220
221 222 226 233 250 259 271
273 282 292 302 305 308 337
338 351 359 369 384 426 451
455 458 460 471 491 504 513
532 542 550 554 558 573 578
588 592 599 604 620 635 642
654 661 690 702 785 787 809
823 824 832 834 849 914 1040
1099 1105 1166 1355 1453 1566 1580
1583 1620 1659 1685 1702 2045 2126
2271 2579 2795 2851 3169 3200 3447
3548 3944 4179 4543 6249 6545 13765
13807 16313 21601 22398 23912 25143 26875
36358 48312 69880 99942100085101955144898
162173214869422699

Group E:

In this group there are 210 asteroids. In this file you can find the summary.

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Contact:
gcpsj@sdf-eu.org
rgilhutton@casleo.gov.ar


last modification: Diciembre 2021

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