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Date and Time of the Query: 2019-06-25 T23:45:47 PDT
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Notes for object NGC 0864

12 note(s) found in NED.


1. 2008MNRAS.390..466E
Re:UGC 01736
UGC 1736. The kinematical centre chosen in Paper IV is different from the
morphological centre chosen here, leading to a different rotation curve.

2. 2007MNRAS.380..506G
Re:NGC 0864
This is a barred Sc galaxy where a nuclear radio source with the linear size of
~=300 pc has been detected (Ulvestad & Ho 2002); according to Espada et al.
(2005) its H i profile is symmetric in velocity but asymmetric in intensity;
they also measure large-scale asymmetries in the two-dimensional kinematics,
such as a warp. The mentioned asymmetries occur in the outer parts, well beyond
the extent of the SAURON field. The asymmetries could have been induced by a
past encounter with a companion, passing outside the optical disc but within the
H I disc; the companion would have dispersed its stars and dark matter after the
merging, consistent with the fact that NGC 864 appears to be remarkably
isolated.
Our line strength maps show a very sharp central dip in both Fe5015 and Mgb;
in the region surrounding the dip, the Fe5015 and Mgb values rise. The H{beta}
absorption also takes on low values over an extended central region; as seen
also in Table 2, the indices measured on the central aperture of this galaxy are
among the lowest in the sample. From the one-SSP analysis, given the structure
of the line strength maps, we derive very low metallicity and old (~=11.22 Gyr)
ages for the central aperture.
The analysis of the {DELTA}{chi}^2^ contours, in the continuous star
formation approach, shows that this galaxy is unlikely to have experienced a
constant star formation over time (see Fig. 29, fourth column).

3. 2003ApJS..146..353M
Re:NGC 0864
NGC 864 (LW)
There is a remarkably small circumnuclear starburst ring with a radius
of slightly less than 100 pc. The blue light from this starburst
appears to dominate the visible light from the nucleus.

4. 2002ApJS..143...73E
Re:NGC 0864
NGC 864.---SBb: Strong, slightly curved bar, with bright ansae at the
ends. Asymmetric arms that start before the intersection point with
the bar. SE arm has a kinky appearance; more like a series of line
segments than a smooth curve. Arms make less than a half-turn before
losing their integrity. Outer spiral pattern is flocculent.

5. 2002AJ....124..675C
Re:UGC 01736
Diffuse radio source.

6. 1997ApJS..110..299M
Re:NGC 0864
Rise in ellipticity is accompanied by steady change in P.A. indicating
twisted isophotes. However, a barlike structure is visible at low levels
in the K_S_image. Unbarred in the RSA.

7. 1994CAG1..B...0000S
Re:NGC 0864
Sbc(r)II-III/SBbc(r)II-III
H-1438-H
Nov 21/22, 1932
Imp. Ecl.
45 min
The central oval forms a weak bar. The two
principal arms spring from the ends of the bar's
major axis. Fainter outer arm fragments exist.
The two largest of the many HII regions
resolve at about the 2" level; the others are
unresolved. The redshift of NGC 864 is
v_o = 1707 km/s.

8. 1993A&AS...97..887B
Re:NGC 0864
NGC 864 was detected by Y89 with the 14m FCRAO telescope in CO(1-0). The
strongest line is the CO(2-1) central profile so we believe that the
nucleus may be small in CO, as it is in ionized gas (P89), and most of
the CO emission in the nucleus. No CO was detected along the radial cut
which means the H_2_ to HI mass ratio is less than 10%, which is very
poor in molecular gas.

9. 1973UGC...C...0000N
Re:UGC 01736
SAB(rs)c (de Vaucouleurs)

10. 1973AISAO...8....3K
Re:KIG 0096
Strong spiral structure.

11. 1964RC1...C...0000d
Re:NGC 0864
Very small, very bright nucleus
in a broad diffuse weak bar.
Pseudo (r): 0.8 arcmin x 0.7 arcmin.
Spectrum:
A.J., 61, 97, 1956.

12. 1956AJ.....61...97H
Re:NGC 0864
HMS Note No. 013
Narrow nuclear spectrum.
Early-type continuum, faint H and K, with {lambda} 3727, H{delta},
H{gamma}, and H{beta} in emission (HMS: Plate IVc).


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