2003A&A...409..899S


Query : 2003A&A...409..899S

2003A&A...409..899S - Astronomy and Astrophysics, volume 409, 899-906 (2003/10-3)

Low signal-to-noise spectroscopy and surface photometry of two faint galaxies in the field of NGC 7479.

SARAIVA M.F. and BENEDICT G.F.

Abstract (from CDS):

We present low signal-to-noise spectroscopy and surface photometry of two small galaxies, detected in the field of the nearby asymmetric barred spiral NGC 7479, near a prolongation of the western arm that forms a faint tail in the disc, and selected as possible companions of this galaxy. The analysis was based on data obtained with the Prime Focus Camera (PFC) at the 0.8m telescope of McDonald Observatory, and the Low Resolution Spectroscope (LRS) at the 9.2m Hobby-Eberly Telescope (HET). We determined radial velocities using cross correlation with 15 different templates, and derived integrated magnitudes, colors and brightness profiles for each. The derived radial velocities are around 35500km/s for one galaxy and 38000km/s for the other, which clearly indicates that both are far more distant than the nearby NGC 7479. The absolute magnitudes and diameters of these two background galaxies are typical of normal galaxies, and their colors are similar to other galaxies with similar redshifs. NGC 7479 continues to exist in isolation with no detected companion.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 7479 - galaxies: photometry

Nomenclature: Fig.1: [SB2003] NGC 7479-GA (Nos GA, GB).

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 1407 GiG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 537 1
2 NGC 1426 GiG 03 42 49.0995354501 -22 06 30.172682100   12.21 11.44 10.90   ~ 185 0
3 NGC 1700 GiG 04 56 56.347 -04 51 56.64   12   11.14   ~ 333 1
4 IC 4214 G 13 17 42.678 -32 06 06.16   12.15 11.65 10.72   ~ 108 0
5 ESO 185-54 BiC 20 03 27.026 -55 56 49.90   12.11   10.57   ~ 56 0
6 NGC 6851 GiG 20 03 34.402 -48 17 04.21   12.83 11.67 11.31   ~ 90 0
7 NGC 6958 G 20 48 42.6063609433 -37 59 50.877744163 12.79 12.27 11.42 10.83   ~ 145 1
8 2MASS J23044539+1221233 G 23 04 45.410 +12 21 23.39           ~ 1 1
9 USNO-A2.0 0975-21171450 G 23 04 50.872 +12 22 08.38           ~ 1 1
10 NGC 7479 Sy2 23 04 56.668 +12 19 22.36 11.74 11.60 10.85 10.47 9.66 ~ 693 2

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2021.09.26-02:24:52

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