2007A&A...472L..39F


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.28CET01:47:10

2007A&A...472L..39F - Astronomy and Astrophysics, volume 472, L39-42 (2007/9-3)

The truncation of the stellar disc of NGC 6504.

FLORIDO E., BATTANER E., ZURITA A. and GUIJARRO A.

Abstract (from CDS):

This is the first work reporting observations of the truncation of a stellar disc, in both the optical and the NIR spectral ranges. No galaxy has been observed at both wavelengths with the required depth. The optical radial profiles of spiral galaxy discs seem to suggest a double exponential behaviour, whilst NIR profiles seem to show a real truncation. We study one galaxy with the best available resolution and detail, in both optical and NIR bands, with the same deprojection method and similar reduction procedures, to see if the different descriptions are real. Optical observations (V band) were made with the William Herschel Telescope. NIR observations (J, H, Ks) were made with the CAIN infrared camera on the Carlos Sanchez Telescope in Tenerife (Spain). The deprojection method was that described in Florido et al. (2001A&A...378...82F, 2006A&A...455..467F). NGC 6504 has a real truncation in both the optical and the NIR radial profiles. A double exponential does not fit the observed optical profile. The truncation radius is larger in the V band than in the NIR by ∼10arcsec, about 3kpc (equivalent to about 10%). We examine the constraints of this observation in theoretical scenarios.

Abstract Copyright:

Journal keyword(s): galaxies: fundamental parameters - galaxies: photometry - galaxies: structure

Simbad objects: 10

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Number of rows : 10

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 NGC 522 GiG 01 24 45.855 +09 59 40.64   14.2       ~ 93 0
2 MCG-01-05-047 Sy2 01 52 49.004 -03 26 48.56   13.9   13.8 13.2 ~ 90 0
3 NGC 2654 SyG 08 49 11.873 +60 13 16.03   12.80       ~ 128 0
4 NGC 2862 SyG 09 24 55.1052663785 +26 46 28.773250132   13.80       ~ 66 0
5 NGC 3279 GiG 10 34 42.792 +11 11 50.08   14.10       ~ 87 0
6 NGC 4013 GiG 11 58 31.417 +43 56 49.28   12.4       ~ 373 1
7 NGC 4217 GiG 12 15 50.900 +47 05 30.44   12.4       ~ 256 2
8 M 63 LIN 13 15 49.2738527699 +42 01 45.726078017   9.34 8.59 8.35   ~ 1079 2
9 NGC 5981 GiG 15 37 53.456 +59 23 30.45   14.2       ~ 92 0
10 NGC 6504 G 17 56 05.7188444809 +33 12 30.441250744   13.4       ~ 48 0

    Equat.    Gal    SGal    Ecl

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2020.11.28-01:47:10

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