Date and Time of the Query: 2019-05-26 T04:36:36 PDT
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Notes for object NGC 2188

6 note(s) found in NED.

1. 2003ApJS..148..383M
Re:NGC 2188
A7. NGC 2188 Figure 7 presents H{alpha}, [N II], and [N II]/H{alpha}
maps of NGC 2188 obtained with the TTF on the AAT. The field of view
prevents us from fully imaging this large galaxy; our results are based
only on the portion of the galaxy within the field of view. A number of
H{alpha} filaments and arcs of diffuse gas are apparent on the west side
of this galaxy. Two prominent arcs of gas (with average EM {approx}60 pc
cm^-6^ ) are clearly present in the western halo, roughly 4 kpc south of
the nucleus. The emission measure of the fiIaments in the western halo
is ~50 pc cm^-6^ at a height of 800 pc.
Based on the portion of NGC 2188 that lies within the field of view of
the TTF, the H{alpha} luminosity /D^2^_25_ ratio is 9.8 x 10^37^ ergs
s^-1^ kpc-^2^, 13% of which is attributed to extraplanar gas. The scale
height of the extraplanar gas is ~0.8 kpc for both the western and
eastern halos, and the total extraplanar ionized mass (within the field
of view) is 9.5 x 10^7^ M_{sun}_. A strong correlation is found between
the disk and extraplanar emission in NGC 2188, but the 1 {sigma}
deviations from the average vertical profile are small, suggesting that
while there are a number of filaments and plumes in the halo of the
galaxy, there is also a pervasive diffuse EDIG layer. This diffuse layer
can be seen in Figure 7 extending into the halo out to about 1 kpc above
the disk.
Domgorgen & Dettmar (1997) also imaged NGC 2188 in H{alpha}+[N II]. Our
results closely match theirs. They measure an H{alpha} luminosity of 1.1
x 10^40^ ergs s^-1^, a value that matches ours within the errors of the
measurements. They also detect a number of filamentary structures whose
positions are highly correlated with H II regions located in the
southern portion of the galaxy.
The [N II]/H{alpha} ratio map is dominated by an artificial radial
gradient due to a wavelength mismatch between the H{alpha} and [N II]
images. Nevertheless, a shallow vertical gradient appears to be present
in this object, in general agreement with the spectroscopic results of
Domgorgen & Dettmar.

2. 1994CAG1..B...0000S
Re:NGC 2188
Feb 1/2, 1978
103aO + GG385
50 min
Individual stars are beginning to resolve at
about B = 21 in this nearly edge on galaxy, but
the high-surface-brightness of the image will
make photometry difficult.
The redshift is v_o = 555 km/s.

3. 1985SGC...C...0000C
Re:NGC 2188
Plate 4743
Overexposed, very patchy, many very faint knots.
Distant cluster 3.5 north-following.

4. 1979AJ.....84..472S
Re:NGC 2188
Nearly on edge.
No central bulge.
Good resolution into stars, but internal absorption and high surface
brightness through the disk make the system
difficult to use for the distance scale problem.

5. 1976RC2...C...0000d
Re:NGC 2188
Pair with an anonymous (R)SB(r)0+ at 16 arcmin.
Ap. J., 140, 1304, 1964.
A.J., 76, 775, 1971.
Vistas in Ast., Vol. 14, 214, 1972.
Rotation Curve and Mass Determination:
Ap. J., 140, 1304, 1964.
HI 21cm:
Source R2, (Astr. Ap., 3, 292, 1969) quality D, rejected.

6. 1964RC1...C...0000d
Re:NGC 2188
Small, bright nucleus
in a short bar-like structure: 0.6 arcmin x 0.17 arcmin
from which extend asymmetric smooth wings or arms.
Possible rear end-on view of edge-on SB(s)m.
Paired with anonymous RSB(r)0+ at 16 arcmin.

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