2006A&A...452..921C


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.06CET18:52:03

2006A&A...452..921C - Astronomy and Astrophysics, volume 452, 921-931 (2006/6-4)

Optical polarimetry of infrared excess stars.

CHAVERO C., GOMEZ M., WHITNEY B.A. and SAFFE C.

Abstract (from CDS):

We present UBRVI polarimetry measurements for a group of 38 IRAS infrared excess stars and complement these observations with V-band data taken from the literature for 87 additional objects. After correcting the observed values by the interstellar contribution, we find that 48% of the analyzed sample has polarization excess. In addition, the polarization of these stars may correlate with infrared color excesses, particularly at 60 and 100µm. We caution, however, that poor IRAS data quality at longer wavelengths affects this correlation. We analyze the wavelength dependence of the linear polarization of 15 polarized objects in relation to Serkowski's empirical interstellar law. We find that for 6 to 7 objects (depending on the interstellar model) the measured polarization differs significantly from the empirical interstellar law, suggesting an intrinsic origin. We analyze the polarimetry distribution of IRAS infrared excess objects in relation to the Exoplanet host stars (i.e., stars associated with at least one likely planetary mass object). The corresponding polarimetry distributions are different within a high confidence level. Finally, we compare the metallicity distributions of F and G IRAS infrared excess, Exoplanet host and field main sequence stars, and find that F-G IRAS infrared excess objects have metallicities quite similar (although not identical) to field main sequence stars and significantly different from the Exoplanet host group.

Abstract Copyright:

Journal keyword(s): stars: circumstellar matter - stars: planetary systems - techniques: photometric - techniques: polarimetric

Simbad objects: 46

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Number of rows : 46

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * bet03 Tuc ** 00 32 43.9055907013 -63 01 53.397968811 5.15 5.13 5.09     A0V 115 0
2 * 49 Cet PM* 01 34 37.7788265080 -15 40 34.898112472   5.667 5.607   5.54 A1V 254 0
3 * q01 Eri PM* 01 42 29.3148822519 -53 44 26.991165270   6.05 5.52     F9V 277 1
4 * tau Cet PM* 01 44 04.0834226 -15 56 14.926552 4.43 4.22 3.50 2.88 2.41 G8V 1115 1
5 V* CC Eri BY* 02 34 22.5662436236 -43 47 46.871752741 11.305 10.201 8.865 7.926 6.992 K7V 253 0
6 * nu. Hor PM* 02 49 01.4872272860 -62 48 23.486000858   5.352 5.253     A2V 66 0
7 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1734 1
8 IC 348 12 Y*O 03 44 35.3536256308 +32 10 04.612216964       10.06 9.098 A2 53 0
9 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1696 1
10 HD 43955 SB* 06 18 13.7284126762 -19 58 01.100644248   5.333 5.501     B2/3V 63 0
11 HD 43954 * 06 18 29.7631666247 -14 35 53.948077132   8.38 8.37     A0V 13 0
12 HD 56192 * 07 13 47.7659169792 -46 34 58.723856306   9.92 9.86     B9/A0V 8 0
13 HD 58647 Em* 07 25 56.0988044433 -14 10 43.548997982 6.81 6.92 6.85 6.73 6.73 B9IV 77 0
14 * D01 Car * 08 00 19.9667811 -63 34 02.842048 4.03 4.639 4.806     B4V 66 0
15 HD 233517 * 08 22 46.7144627395 +53 04 49.232441095   10.85 9.71     K2 84 0
16 HD 80459 Be* 09 16 55.6059253902 -63 46 30.489072652 6.87 7.38 7.39     B6Vne 20 0
17 HD 80951 ** 09 17 25.17081 -74 53 39.5506   5.31 5.29     A1V 35 0
18 HD 80950 * 09 17 27.5700510873 -74 44 04.522381833   5.844 5.857     A0V 45 0
19 HD 80558 s*b 09 18 42.3559725873 -51 33 38.336390468 6.15 6.47 5.93 5.36 4.94 B6Ia 107 0
20 * q Vel PM* 10 14 44.1557297 -42 07 18.993292 3.98 3.90 3.85 3.83 3.81 A2Va 121 0
21 HD 98800 RS* 11 22 05.28975 -24 46 39.7571   10.20 9.28 9.26 7.386 K5V(e) 335 0
22 HD 105686 ** 12 10 02.54849 -34 42 17.0771   6.20 6.17     A0V 21 0
23 V* SX Cen RV* 12 21 12.5740806517 -49 12 41.059392756   10.11 9.60     B5III 67 0
24 * G Cen * 12 26 31.7595461 -51 27 02.289947 4.02 4.654 4.808     B3V(n) 71 0
25 HD 109573 PM* 12 36 01.0317721349 -39 52 10.222698506   5.786 5.774 7.25 5.81 A0V 564 1
26 HD 113766 ** 13 06 35.83622 -46 02 02.0178   7.91 7.56     F3/5V 95 1
27 HD 117360 PM* 13 33 13.6588674448 -77 34 09.798191510   6.96 6.52     F8VFe-0.9 46 1
28 HD 128760 * 14 40 12.6851374092 -45 32 45.448165218   8.65 8.12     F8/G0V 39 0
29 HD 145263 * 16 10 55.1055882785 -25 31 21.668325032   9.39 8.98     F2V 64 0
30 * omi Sco V* 16 20 38.1806792 -24 10 09.549111 5.99 5.40 4.57 3.69 2.93 A4II/III 244 0
31 HD 150193 Be* 16 40 17.9242900066 -23 53 45.192676418 9.69 9.32 8.79 8.41   B9.5Ve 296 0
32 HD 150638 * 16 43 38.7241629283 -32 06 21.407905075   6.374 6.452     B8V 40 0
33 HD 153968 * 17 06 24.0397936738 -60 08 50.257357824   9.71 9.33     F0V 12 0
34 HD 155528 * 17 12 19.9460913392 -04 24 09.250567636   10.08 9.60     B8Ib/II 23 0
35 * c Oph Be* 17 31 24.9541340 -23 57 45.513592 4.75 4.81 4.81 4.74 4.72 A0V 258 0
36 * gam Oph PM* 17 47 53.5597327 +02 42 26.199985 3.83 3.80 3.75 3.71 3.71 A1VnkA0mA0 366 0
37 HD 165088 * 18 06 28.0320328698 -44 54 54.329300619   10.15 9.74     F5V 7 0
38 HD 169142 Ae* 18 24 29.7799676975 -29 46 49.328597698   8.42 8.16     F1VekA3mA3_lB? 352 2
39 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2538 0
40 * alf CrA PM* 19 09 28.3409747 -37 54 16.102206   4.146 4.087     A2Va 105 0
41 HD 181327 PM* 19 22 58.9434412361 -54 32 16.979671096   7.50 7.04   6.49 F6V 238 0
42 * alf Sgr PM* 19 23 53.1748283 -40 36 57.370456 3.54 3.841 3.943     B8V 91 0
43 * gam Pav PM* 21 26 26.6048372 -65 21 58.314484 4.57 4.70 4.22 3.75 3.45 F9VFe-1.4CH-0.7 381 0
44 HD 207129 PM* 21 48 15.7510673466 -47 18 13.020109072   6.18 5.58     G2V 296 0
45 * alf PsA ** 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1135 3
46 * eta Tuc ** 23 57 35.0785168096 -64 17 53.622899148   5.046 4.989     A1V 82 0

    Equat.    Gal    SGal    Ecl

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2021.03.06-18:52:03

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