NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-25 T22:20:09 PDT
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Notes for object NGC 6667

4 note(s) found in NED.


1. 2008MNRAS.388..500E
Re:UGC 11269
UGC 11269 (NGC 6667). Despite a short exposure time (~1 h), our H{alpha}
observations perfectly match James et al. (2004) H{alpha} data who find faint
patchy emission. It has been observed in H I by WHISP (Noordermeer et al. 2005)
and their velocity field and rotation curve extend more than four times the
optical radius. Our H{alpha} position-velocity diagram does not show the steep
velocity gradient observed in their H I position-velocity diagram in the
innermost 40 arcsec due to a very noisy and patchy distribution of the ionized
gas. The maximum rotation velocity is reached in H{alpha}, as confirmed by the
width of the H I profile at 20 per cent found by different authors (415 km s^-1^
from Noordermeer et al. 2005, 394 km s^-1^ from Springob et al. 2005, 406 km
s^-1^ from Bottinelli et al. 1990). Our H{alpha} data suggest that the maximum
rotation velocity is reached within the first kpc instead of the first ~6 kpc as
suggested by the H I data (Noordermeer et al. 2005).

2. 2005A&A...442..137N
Re:UGC 11269
UGC 11269 (NGC 6667) must recently have undergone a merger. A giant one-armed
spiral arm seems to extend out from the main disk. It is partly visible in the
optical image as well. Most of this material seems to be virialized already,
since it follows closely the velocities of the gas in the inner parts. Note also
the peculiar, asymmetric shape of the position-velocity diagram along the major
axis: at the receding side, the peak velocity is much higher than at the
approaching side. On both sides, the rotation velocities decline strongly away
from the center.

3. 1973UGC...C...0000N
Re:UGC 11269
Red complex central region eccentric in main body 1.6 x 0.7 with low surface
brightness
Very diffuse outer parts, uncertain diameter values
No spiral structure
UGC 11266 at 6.4, 232

4. 1964RC1...C...0000d
Re:NGC 6667
Magnitude:
Ap. J., 85, 325, 1937.


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