2007MNRAS.378..881M

Query : 2007MNRAS.378..881M

2007MNRAS.378..881M - Mon. Not. R. Astron. Soc., 378, 881-887 (2007/July-1)

Broad-band optical polarimetric study of IC 1805.

MEDHI B.J., MAHESWAR G., BRIJESH K., PANDEY J.C., KUMAR T.S. and SAGAR R.

Abstract (from CDS):

We present the BVR broad-band polarimetric observations of 51 stars belonging to the young open cluster IC 1805. Along with the photometric data from the literature, we have modelled and subtracted the foreground dust contribution from the maximum polarization (Pmax) and colour excess [E (B - V)]. The mean value of the Pmax for intracluster medium and the foreground are found to be 5.008±0.005 and 4.865±0.022 per cent, respectively. Moreover, the mean value of the wavelength of maximum polarization (λmax) for intracluster medium is 0.541±0.003µ m, which is quite similar as the general interstellar medium (ISM). The resulting intracluster dust component is found to have negligible polarization efficiency as compared to interstellar dust. Some of the observed stars in IC 1805 have shown the indication of intrinsic polarization in their measurements.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): polarization - dust, extinction - open clusters and associations: individual: IC 1805

Simbad objects: 47

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Number of rows : 47
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 BD+64 106 ** 00 57 36.6894556320 +64 51 34.907455548 10.82 11.01   10.21   B1V 77 0
2 BD+60 498 Y*O 02 32 10.8542551368 +61 33 07.940208384 11.61 10.47 9.94     O9V 113 0
3 BD+60 499 Y*O 02 32 16.7518284696 +61 33 14.996422332 10.27 10.85 10.31     O9.5V 87 0
4 LS I +61 280 Y*O 02 32 18.3711931656 +61 27 52.706627028 11.96 12.27 11.61     B1V 31 0
5 2MASS J02321903+6132504 Y*O 02 32 19.0293671208 +61 32 50.430126444 15.27 14.78 13.73     F8V 8 0
6 2MASS J02322149+6128196 Y*O 02 32 21.4828735656 +61 28 19.620421212 14.76 14.45 13.88     B9.5V 7 0
7 2MASS J02322539+6133099 Y*O 02 32 25.394 +61 33 09.99 14.59 14.06 13.40     A8V 6 0
8 IC 1805 129 Y*O 02 32 27.4457180880 +61 27 00.941621904 14.71 14.73 14.124 13.659 13.171 B5V 16 0
9 IC 1805 130 Y*O 02 32 29.9162703768 +61 27 07.623298728 13.91 14.03 13.434 12.951 12.428 B3V 17 0
10 2MASS J02323109+6126321 Y*O 02 32 31.0902655656 +61 26 32.059201812 14.55 14.40 13.56     ~ 5 0
11 LS I +61 281 Y*O 02 32 34.5607509216 +61 32 19.098174984 11.31 11.5 11.1     B1.5V 26 0
12 BD+60 501 Y*O 02 32 36.2781863760 +61 28 25.586191812 11.062 10.02 9.56     O7V(n)((f))z 124 0
13 IC 1805 139 Y*O 02 32 37.4109279840 +61 32 19.288779432 13.51 13.63 13.10     B4V 9 0
14 LS I +61 283 Y*O 02 32 40.8309131016 +61 27 59.823575892 11.44 11.95 11.40     B0.5V 30 0
15 IC 1805 146 Y*O 02 32 41.2898594112 +61 30 58.132838628 13.97 14.09 13.561 13.146 12.732 B5V 11 0
16 IC 1805 147 Y*O 02 32 41.4871346976 +61 27 45.174157740 14.00 13.98 13.386 12.934 12.433 B6V 13 0
17 NAME Heart Nebula HII 02 32.7 +61 27           ~ 336 1
18 2MASS J02324271+6129345 Y*O 02 32 42.7176295416 +61 29 34.482209316 11.33 11.71 11.22     B1.5V 31 0
19 IC 1805 154 Y*O 02 32 42.7666369296 +61 24 13.609490112 16.51 14.84 14.07     G2V 8 0
20 IC 1805 155 Y*O 02 32 44.6902073688 +61 24 38.902457232 15.38 15.71 14.39     A0V 14 0
21 IC 1805 156 Y*O 02 32 46.0318757736 +61 27 56.844558720 12.28 12.65 12.05     B1IV 17 0
22 IC 1805 157 Y*O 02 32 46.9966266096 +61 31 32.109787632 13.89 14.07 13.503 13.045 12.624 B2.5V 22 0
23 IC 1805 158 Y*O 02 32 47.5614986376 +61 26 59.992622268 13.70 13.73 12.76     O9.5-B0.5IV-V 21 0
24 HD 15570 Y*O 02 32 49.4207394600 +61 22 42.089384892 8.40 8.80 8.11 7.41 6.86 O4If 316 0
25 IC 1805 OpC 02 32 52.1 +61 28 36           ~ 542 1
26 IC 1805 162 Y*O 02 32 54.9340520856 +61 29 50.687419344 12.73 12.99 12.47     B2.5V 18 0
27 IC 1805 165 Y*O 02 32 57.5787722064 +61 29 42.573676848 13.15 13.35 12.79     B4 13 0
28 IC 1805 166 Y*O 02 32 57.8246261160 +61 27 26.532821700 12.28 12.56 11.99     B2V 25 0
29 IC 1805 168 Y*O 02 32 58.9534711536 +61 25 45.205853664 14.91 14.50 13.733 13.166 12.593 A2 20 0
30 BD+60 505 Y*O 02 33 01.1538116808 +61 26 21.484911264 10.76 10.49 10.06     A1IV/V 36 0
31 IC 1805 171 Y*O 02 33 03.1739885640 +61 28 46.787468376 13.87 13.73 13.417 12.991 12.643 B5V 11 0
32 2MASS J02330450+6125106 Y*O 02 33 04.5024652200 +61 25 10.630906104 15.13 14.73 13.81     ~ 5 0
33 LS I +61 290 Y*O 02 33 04.7257193904 +61 28 21.047565504 11.79 12.13 11.58     B2.5V 34 0
34 IC 1805 175 Y*O 02 33 05.2757131680 +61 27 07.152609852 13.54 13.70 13.07     B2.5V 15 0
35 IC 1805 182 Y*O 02 33 09.4908910992 +61 31 57.937760040 13.87 14.00 13.393 12.944 12.609 B4V 10 0
36 BD+60 506 Y*O 02 33 11.4562145568 +61 27 03.111314472 11.28 11.70 11.14     B1IV 37 0
37 LS I +61 292 Y*O 02 33 11.8711858296 +61 27 28.217323728 11.82 11.80 11.24     B0.7V 27 0
38 IC 1805 184 Y*O 02 33 11.9491545048 +61 30 57.732944580 14.53 14.37 13.64     f5V 6 0
39 IC 1805 188 Y*O 02 33 18.2348197992 +61 32 11.958603432 12.92 12.11 12.16     O9.5IV-V 24 0
40 2MASS J02332048+6132232 Y*O 02 33 20.4917647512 +61 32 23.279265888 13.34 13.60 12.96     B2.5V 16 0
41 HD 15629 Y*O 02 33 20.5873992264 +61 31 18.188762844 8.23 8.85 8.42     O4.5V((fc)) 255 0
42 2MASS J02363382+6122376 Y*O 02 36 33.8196097800 +61 22 37.712331336 15.76 14.89 13.43     ~ 4 0
43 Ass Cas OB 6 As* 02 43 +61.3           ~ 128 0
44 V* CC Cas SB* 03 14 05.3361655368 +59 33 48.485582712 7.07 7.56 7.08     O8.5III(n)((f)) 308 0
45 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
46 BD+38 4058 EB* 20 23 28.5314538120 +39 20 59.037427788 12.02 11.81 10.62     B0V 69 0
47 HD 204827 SB* 21 28 57.7592315784 +58 44 23.238427956 8.63 8.74 7.94 7.25 6.76 O9.5IV 372 0

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