NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2022-01-19 T00:03:07 PST
Help | Comment | NED Home

Notes for object NGC 7212

8 note(s) found in NED.


1. 2007AJ....134..648M
Re:NGC 7212
NGC 7212 (Figs. 7.66, 9.66, 20.66): This galaxy belongs to a compact group of
interacting galaxies. Spectropolarimetric studies have shown the presence of a
hidden BLR (Tran et al. 1992). It shows a clumpy nuclear morphology and
irregular diffuse emission.

2. 2006A&A...448..499B
Re:NGC 7212
3.2.8 NGC 7212 The soft spectrum is well fitted by the scattering model with two
emission lines (at 0.86^+0.08^_-0.05_ and 1.84^+0.06^_-0.08_ keV) required by
the data at the 93% and 95% confidence level according to F-test, likely
identified as K{alpha} emission from Ne IX and Si XIII. Indeed, the bad
modelling of these residuals is the main reason why a thermal model fails to
provide a good fit ({chi}^2^ = 18/13 d.o.f.). The broadband fit includes also a
pure Compton reflection component and a strong iron line, confirmed by the local
fit (see Table 2), thus suggesting that the source is Compton-thick. This is in
agreement with the XMM-Newton observation (Guainazzi et al. 2005b), whose soft
and hard X-ray fluxes are also consistent with those measured by Chandra.

3. 2004AJ....128..969D
Re:IRAS F22045+0959
F22045+0959: No radio data. Object from sample of Condon et al. (1995).

4. 2003ApJS..148..327S
Re:NGC 7212
5.55. NGC 7212
This is a Seyfert 2 galaxy in an interacting system (Schmitt & Kinney
2000), which presents polarized broad emission lines (Tran 1995). The
[O III] emission of this Seyfert 2 galaxy (Fig. 14, top left) is
extended along P.A. = 170^deg^, with dimensions of 2.1" x 4.8" (1080
x 2480 pc). The emission is composed of several individual blobs to
the north and south of the nucleus. This emission is aligned with the
radio emission. A detailed study of the narrowband and radio images
of this galaxy is presented by Falcke et al. (1998).

5. 2003AJ....126.2237D
Re:NGC 7212
.
4.2. Seyfert Galaxies
.
NGC 7212 (F22045+0959) is a Seyfert 2 galaxy in an interacting triple
(Wasilewski 1981). It has a small radio excess of u = 1.80 on the
boundary with radio-quiet objects. The radio source is a compact
double with a separation of ~520 pc (Falcke, Wilson, & Simpson 1998)
and moderate radio power [L_{nu}_(4.8 GHz) = 10^23.2^ W Hz^-1^].
NGC 7212 is luminous in the FIR, having {nu}L_{nu}_(60 micron) =
10^11.1^L_solar_.

6. 2000A&A...357...13R
Re:NGC 7212
NGC 7212: The Seyfert 2 galaxy NGC 7212 has a flat 0.5-10 keV spectrum,
well fitted by a powerlaw with photon index {GAMMA} = 0.75^+0.50^_-0.55_.
An emission line with peak energy E = 6.06^+0.35^_-0.40keV (compatible
with a K{alpha} iron line at a confidence level of 90%) is detected at a
2{sigma} level, with a best fit equivalent width EW = 1.0^+.13^_-0.9_keV.
From these spectral features we deduce that the source is Compton-thick.
The measured 2-10 keV flux is F = 9.8 x 10^-13^ erg cm^-2^ s^-1^.

7. 1997ApJ...477..631V
Re:NGC 7212
NGC 7212 is in a system of three interacting galaxies located at a
distance of 157 Mpc (Vorontsov-Velyaminov & Arkhipova 1963; Wasilewski
1981). The optical spectrum of this galaxy is typical of Seyfert 2
galaxies (see, e.g., De Robertis & Osterbrock 1986; Veilleux & Osterbrock
1987). Line emission extending over a scale of ~30" has been reported
(Durret & Warin 1990; Durret 1994). Tran et al. (1992) and Tran (1995a)
detected a broad H{alpha} component (FWHM = 3950 km s^-1^) in the
polarized light of NGC 7212. This galaxy was observed in the K band
(Fig 2y). No obvious broad component is observed in the profile of
Br{gamma} The profile of Br{gamma} is similar to that of the equally
strong H_2_{lambda}2.121 feature except for the possible presence of
very faint wings in Br{gamma}. We derive a conservatively high upper limit
to the broad Br{gamma} flux of 1.3 x 10^-15^ ergs s^-1^ cm^-2^. Taken at
face value, this flux is nearly an order of magnitude larger than the
value predicted from the scattered H{alpha} flux of Tran (1995a, 1995c)
and Case B recombination. Emission from He I{lambda}2.

8. 1973UGC...C...0000N
Re:UGC 11910
Disturbed by companion superimposed 0.3 north center, 0.4 x 0.2
Companion 3.2, 19, 0.3 x 0.2


Back to NED Home