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


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.16CET13:06:04

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 114 0
2 * 49 Cet PM* 01 34 37.7788265080 -15 40 34.898112472   5.667 5.607   5.54 A1V 250 0
3 * q01 Eri PM* 01 42 29.3148822519 -53 44 26.991165270   6.05 5.52     F9V 274 1
4 * tau Cet PM* 01 44 04.0834226 -15 56 14.926552 4.43 4.22 3.50 2.88 2.41 G8V 1110 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 252 0
6 * nu. Hor PM* 02 49 01.4872272860 -62 48 23.486000858   5.352 5.253     A2V 65 0
7 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1726 1
8 IC 348 12 Y*O 03 44 35.3536256308 +32 10 04.612216964       10.06 9.098 A2 51 0
9 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1683 1
10 HD 43955 SB* 06 18 13.7284126762 -19 58 01.100644248   5.333 5.501     B2/3V 62 0
11 HD 43954 * 06 18 29.7631666247 -14 35 53.948077132   8.38 8.37     A0V 12 0
12 HD 56192 * 07 13 47.7659169792 -46 34 58.723856306   9.92 9.86     B9/A0V 7 0
13 HD 58647 Em* 07 25 56.0988044433 -14 10 43.548997982 6.81 6.92 6.85 6.73 6.73 B9IV 75 0
14 * D01 Car * 08 00 19.9667811 -63 34 02.842048 4.03 4.639 4.806     B4V 65 0
15 HD 233517 * 08 22 46.7144627395 +53 04 49.232441095   10.85 9.71     K2 83 0
16 HD 80459 Be* 09 16 55.6059253902 -63 46 30.489072652 6.87 7.38 7.39     B6Vne 19 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 44 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 106 0
20 * q Vel PM* 10 14 44.1557297 -42 07 18.993292 3.98 3.90 3.85 3.83 3.81 A2Va 120 0
21 HD 98800 RS* 11 22 05.28975 -24 46 39.7571   10.20 9.28 9.26 7.386 K5V(e) 333 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 66 0
24 * G Cen * 12 26 31.7595461 -51 27 02.289947 4.02 4.654 4.808     B3V(n) 70 0
25 HD 109573 PM* 12 36 01.0317721349 -39 52 10.222698506   5.786 5.774 7.25 5.81 A0V 560 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 45 1
28 HD 128760 * 14 40 12.6851374092 -45 32 45.448165218   8.65 8.12     F8/G0V 38 0
29 HD 145263 * 16 10 55.1055882785 -25 31 21.668325032   9.39 8.98     F2V 63 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 242 0
31 HD 150193 Be* 16 40 17.9242900066 -23 53 45.192676418 9.69 9.32 8.79 8.41   B9.5Ve 295 0
32 HD 150638 * 16 43 38.7241629283 -32 06 21.407905075   6.374 6.452     B8V 39 0
33 HD 153968 * 17 06 24.0397936738 -60 08 50.257357824   9.71 9.33     F0V 11 0
34 HD 155528 * 17 12 19.9460913392 -04 24 09.250567636   10.08 9.60     B8Ib/II 22 0
35 * c Oph Be* 17 31 24.9541340 -23 57 45.513592 4.75 4.81 4.81 4.74 4.72 A0V 256 0
36 * gam Oph PM* 17 47 53.5597327 +02 42 26.199985 3.83 3.80 3.75 3.71 3.71 A1VnkA0mA0 364 0
37 HD 165088 * 18 06 28.0320328698 -44 54 54.329300619   10.15 9.74     F5V 6 0
38 HD 169142 Ae* 18 24 29.7799676975 -29 46 49.328597698   8.42 8.16     F1VekA3mA3_lB? 349 2
39 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2533 0
40 * alf CrA PM* 19 09 28.3409747 -37 54 16.102206   4.146 4.087     A2Va 104 0
41 HD 181327 PM* 19 22 58.9434412361 -54 32 16.979671096   7.50 7.04   6.49 F6V 235 0
42 * alf Sgr PM* 19 23 53.1748283 -40 36 57.370456 3.54 3.841 3.943     B8V 90 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-0.7 380 0
44 HD 207129 PM* 21 48 15.7510673466 -47 18 13.020109072   6.18 5.58     G2V 295 0
45 * alf PsA ** 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1131 3
46 * eta Tuc ** 23 57 35.0785168096 -64 17 53.622899148   5.046 4.989     A1V 81 0

    Equat.    Gal    SGal    Ecl

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2021.01.16-13:06:04

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