2000ApJ...545..171D

Query : 2000ApJ...545..171D

2000ApJ...545..171D - Astrophys. J., 545, 171-180 (2000/December-2)

Seeing galaxies through thick and thin. II. Direct measures of extinction in spiral disks through spectroscopy of overlapping galaxies.

DOMINGUE D.L., KEEL W.C. and WHITE III R.E.

Abstract (from CDS):

We use slit spectroscopy of overlapping pairs of galaxies to directly determine the extinction in disks of foreground spiral galaxies. The Doppler shifts of pair members are determined via cross-correlation, and their relative correlation amplitudes are used to separate their contributions to the combined spectra in regions of overlap. This spectroscopic approach is less subject to stringent symmetry constraints than our previous, purely photometric analyses. Extinctions of foreground members were obtained for six of the candidates in our sample of 18 mostly spiral/spiral pairs, when the signal-to-noise-ratio and velocity differences were suitable. In agreement with our previous imaging results, we find that the extinction in interarm regions is very modest, typically AB∼0.1 mag (corrected to face-on), while spiral arms exhibit higher extinctions of ∼0.3 mag.

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Journal keyword(s): Galaxies: Distances and Redshifts - Galaxies: ISM - Galaxies: Photometry - Galaxies: Spiral

CDS comments: Table 2 : NGC 190 NED 01 = HCG 5a, NGC 190 NED 02 = HCG 5b in SIMBAD

Simbad objects: 40

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Number of rows : 40
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NGC 190 GiC 00 38 54.6912306264 +07 03 45.792267552   15.08   13.39   ~ 46 0
2 [D80] ACO 76 61 GiC 00 38 54.7322744712 +07 03 24.194104632   15.99   13.70   ~ 16 0
3 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2155 2
4 UGC 1265 PaG 01 48 47.1 +20 15 47   14.5       ~ 16 0
5 NGC 1738 AG? 05 01 46.6809702360 -18 09 25.875435024   13.70   12.65   ~ 31 0
6 NGC 1739 EmG 05 01 47.338 -18 10 00.29   14.24   13.22 14.0 ~ 25 0
7 NGC 1888 Sy2 05 22 34.442 -11 29 58.34   13   11.47   ~ 65 0
8 NGC 1889 AG? 05 22 35.30 -11 29 49.0   12.6   12.7 12.3 ~ 35 0
9 ACO 548 ClG 05 47 01.7 -25 36 59           B8 203 2
10 AM 0546-253 G 05 48 41 -25 30.8           ~ 2 0
11 ESO 488-29 IG 05 48 44.9 -25 33 35   15.75   14.79   ~ 6 0
12 NGC 2207 AG? 06 16 22.0336889136 -21 22 21.759218400   11.48 10.65 10.21 11.9 ~ 289 3
13 IC 2163 AG? 06 16 27.9671433048 -21 22 33.133211832   12.55   11.28   ~ 165 2
14 UGC 3445 GiP 06 21 32.8048428168 +59 07 36.060022416   13.24 12.41     ~ 24 0
15 UGC 3446 GiP 06 21 38.90 +59 07 33.0   13.47 12.63     ~ 14 0
16 ESO 366-25 IG 06 50 52.2 -35 21 11   15.32   13.75   ~ 5 0
17 MCG-06-16-002 Sy1 06 50 54.4132017552 -35 20 56.279074920   15.87   14.12   ~ 17 0
18 UGC 3995 B Sy2 07 44 09.1275236304 +29 14 50.762711400   13.28       ~ 128 1
19 NGC 3088 G 10 01 08.3 +22 24 21   14.7       ~ 8 0
20 MCG+04-24-011 G 10 01 09.661 +22 24 09.02   14.7       ~ 24 0
21 HD 90861 * 10 29 53.6918682240 +28 34 52.393516824   8.01 6.90     K2III 53 0
22 VV 267b GiP 10 59 45 +17 38.9           ~ 1 0
23 UGC 6073 IG 10 59 45.168 +17 39 01.11   15.3       ~ 18 0
24 NGC 4567 GiP 12 36 32.6979947472 +11 15 28.716262668 12.25 12.06 11.31     ~ 325 2
25 NGC 4568 GiP 12 36 34.292 +11 14 19.07   12.11 11.19     ~ 382 2
26 ESO 508-45 IG 13 19 32.9 -24 29 20   15.71   14.41   ~ 25 0
27 NGC 6365 IG 17 22 43.518 +62 10 25.20   14.6       ~ 33 0
28 UGC 10832 AGN 17 22 43.8138071832 +62 09 57.935376432   18.65 17.98     ~ 33 0
29 BD+28 3402 * 19 35 00.3558468072 +29 05 14.107842924   9.28 8.88     F5V 12 0
30 NGC 7268 EmG 22 25 40.730 -31 12 02.46   14.25   12.75   ~ 19 0
31 ESO 467-57 PaG 22 25 41.3 -31 12 01   14.82       ~ 7 0
32 MCG-05-53-002 GiP 22 25 41.9 -31 12 02   15.44   14.18   ~ 4 0
33 HD 213947 * 22 34 36.5417290896 +26 35 53.557255392   8.34 6.86     K2 34 0
34 MCG-02-58-011 Sy2 22 56 50.8722146424 -08 58 02.831572416   14   13.36   ~ 47 0
35 MCG+04-54-005 GiP 22 57 56.3 +26 09 01   15.5 15     ~ 11 0
36 NGC 7436 GiG 22 57 57.5438666496 +26 08 59.953374888   15.5       ~ 87 1
37 MCG-05-01-007 GiG 23 56 23.5 -29 01 20   15       ~ 4 0
38 IC 5364 Sy1 23 56 24.58 -29 01 21.8   15.16   13.75   ~ 23 1
39 MCG-05-01-012 PaG 23 57 26.7 -30 27 33   15.12       ~ 23 0
40 MCG-05-01-013 Sy1 23 57 28.0469236872 -30 27 40.510423404   10.7 11.27 10.2   ~ 26 0

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