1997A&A...318...37B

Query : 1997A&A...318...37B

1997A&A...318...37B - Astronomy and Astrophysics, volume 31837-39 (1997/2-1)

Interstellar polarization at high galactic latitudes from distant stars. II. Evidence for depolarization starting at Z≃600pc.

BERDYUGIN A. and TEERIKORPI P.

Abstract (from CDS):

We have measured linear polarization for 20 distant high latitude A and F stars, as a first step to extend our previous study (Berdyugin et al. 1995A&A...294..568B: Paper I) of the North Galactic polar cap to distances larger than 600pc. The results give tentative evidence for depolarization starting to be seen around Z≃500pc, possibly indicating that there is a significant change in the magnetic field direction. Depolarization requires that there is still light-polarizing dust in the Z range 500-1000pc and the lower limit to extinction inferred in Paper I (AB>0.11mag) must be increased by a yet undetermined amount.

Abstract Copyright: ∼

Journal keyword(s): polarization - dust, extinction - solar neighbourhood

Simbad objects: 23

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Number of rows : 23
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 HD 65583 PM* 08 00 32.1297283166 +29 12 44.475101673 7.89 7.71 7.00 6.40 5.98 K0V_Fe-1.3 338 0
2 BD+27 2063 * 11 51 49.9848199680 +26 21 55.153278648   11.3 11.1     A2 17 0
3 BD+28 2061 * 11 55 31.9344476808 +27 30 46.207259856   11.23 10.75     A5 10 0
4 BD+23 2403 * 11 55 41.9797092048 +22 59 59.885092428   11.86 11.60     B5 17 0
5 TYC 2529-200-1 * 12 00 30.7681668864 +36 08 56.835749796   11.56 11.39     kA1hA2mA4 10 0
6 TYC 2529-1080-1 * 12 06 43.5981477360 +35 53 53.834574156   11.77 11.40 11.491   F2 12 0
7 TYC 3017-635-1 Pu* 12 11 56.8744878192 +40 15 26.232943176   11.07 11.11     A2 14 0
8 BD+25 2478 * 12 16 33.8849994000 +24 36 33.738131340   10.68 10.73     A0V 34 0
9 BD+25 2479 SB* 12 16 49.4367818400 +24 51 20.947096548   11.3 10.5     G8 17 0
10 Cl* Melotte 111 AV 951 * 12 18 17.7209880048 +27 18 01.682100720     11.27     F2 7 0
11 BD+19 2574 * 12 29 34.5978274440 +18 49 41.963449476   11.02 10.9     kA2hA6mA7 12 0
12 BD+20 2729 Pe* 12 30 53.1844208688 +19 53 29.850733716   11.34 11.12 11.12   A1IVSrSi 12 0
13 BD+30 2290 * 12 32 55.7918260608 +29 33 52.897405032   11.6 11.6     A0 15 0
14 BD+31 2384 * 12 34 12.9108756912 +30 39 47.156285700   11.18 11.1     A3V 21 0
15 BD+36 2292 * 12 38 29.3504494560 +36 11 25.159114500   11.25 10.9     A5 17 0
16 TYC 3023-243-1 Pe* 12 49 34.1193681648 +41 44 02.009368824   11.41 11.16     kA2hA6mA7 16 0
17 TYC 1993-865-1 gD* 12 50 21.7969751448 +24 43 22.706904576   11.11 10.92     A7 14 0
18 BD+41 2375 SB* 13 15 37.0948512720 +40 35 59.702180964   11.08 10.74     A0 12 0
19 BD+29 2413 * 13 29 14.7958080888 +28 47 22.523923680   11.04 11.0     A0 13 0
20 BD+30 2431 HB* 13 38 24.7651989120 +29 21 56.007255024   9.89 10.02     B5Vp 127 0
21 BD+23 2604 * 13 43 18.7517754792 +22 25 17.433279804   11.6 11.4     A5 11 0
22 HD 144287 SB* 16 04 03.6443478821 +25 15 17.247159500   7.873 7.101 6.6   G8+V 181 0
23 HD 161056 * 17 43 47.0221609752 -07 04 46.594311996 6.26 6.68 6.32 5.94 5.67 B3II/III 201 0

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