NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-24 T19:06:00 PDT
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Notes for object NGC 1738

6 note(s) found in NED.


1. 2002ApJS..143...47D
Re:IRAS 04595-1813
IRAS 04595-1813 (NGC 1738).---This spiral galaxy may be merging with
the companion spiral NGC 1739. From our images, we estimate a nuclear
separation of ~40". However, the lack of strong tidal features or
distortion suggests that the separation is much deeper in projection.
Our H{alpha} image shows that both galaxies contain centrally
concentrated star formation in addition to extensive star-forming
regions in the spiral disks. NGC 1738 has been classed by Corbett et
al. (2002b) as H II region--like.

2. 2000ApJ...545..171D
Re:NGC 1738
NGC 1738/9 comprises an SBbc-Sbc pair for which our single
spectroscopic slit position did not pass through background areas
symmetric to our regions of interest (see Fig. 7), due to geometric
constraints. We were, however, able to estimate opacities despite the
velocity separation being less than 100 km s^-1^. Cross-correlation of
spectra from the overlap region proved to be easiest with the nuclear
spectrum of NGC 1738. In combination with the B-image/spectrum method,
three 1 pixel (0.2 kpc) wide regions reveal an average apparent
A_B_ = 0.76 for these arm regions. Dividing by the axial ratio of the
foreground galaxy NGC 1739 (a/b = 1.95) yields a face-on-corrected value
of A_B_ = 0.39, which is in general agreement with our previous
photometric analysis of this pair (White et al. 2000).

3. 2000ApJ...542..761W
Re:NGC 1738
Figures 4a and 4b are B and B-I images, respectively, of the Sbc pair
NGC 1738/9. The symmetry of this system is not good enough to do an
opacity analysis in the same detail as for AM 1316-241 and AM 0500-620.
Instead, the two regions indicated in Figure 4a are investigated: a
foreground arm region at 0.65 R_25_^B^ and an interarm region at 0.55
R_25_^B^. Symmetric regions in the foreground and background galaxies
are used to infer the apparent extinction in B and I in these two
regions. The apparent extinction values of the foreground galaxy
(NGC 1739) are divided by its axial ratio of 1.95 (indicating an
inclination of 59^deg^) to give the face-on-corrected values listed in
Table 3. The face-on extinctions are again quite low: in the arm region,
A_B_ = 0.3-0.37 and A_I_ = 0.24 -0.28, while in the interarm region,
A_B_ = 0.2-0.26 and A_I_ = 0.17.

4. 1985SGC...C...0000C
Re:NGC 1738
Plate 5605
Overexposed center, extremely bright knots on arms. Interacting pair
with NGC 1739 at 0.55. Superposed on small cluster.

5. 1982ESOU..C...0000L
Re:ESO 045934-1813.8
=ESO 552- G 49
partly obscured by ESO 552- G 50

6. 1968MCG4..C...0000V
Re:MCG -03-13-054
Interacting pair (with MCG -03-13-055) of very perturbed galaxies.
{rho}=0.6 arcmin.


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