NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-17 T19:32:03 PDT
Help | Comment | NED Home

Notes for object UGC 09796

5 note(s) found in NED.


1. 2000A&AS..141..385V
Re:UGC 09796
A-06 = UGC 9796 = II Zw 73. (E,G,N,V,W) Very faint polar ring, whose
H{alpha} kinematics show it to be actually a differentially rotating
disc, about 25^deg^ from perpendicular to the equatorial disc; No
nuclear H{alpha} emission (Reshetnikov & Combes 1994). Images, surface
photometry: see Reshetnikov et al. (1994), Reshetnikov & Combes (1994)
and PRC; optical rotation curve: see Makarov et al. (1997). Listed as
one of the disc-dominated PRGs with large polar rings by Reshetnikov &
Sotnikova (1997). Since the Green Bank and Effelsberg profiles look
quite different, the galaxy was also observed at Nancay. VLA imaging
observations (Cox et al. 1995; van Gorkom et al. 1987) show that all our
single-dish spectra are confused by companion galaxies, however; for
example, 7 companions were detected at the VLA within the Green Bank
beam area, resulting in a integrated H I line flux 5 times higher than
that of the PRG itself. The VLA images show that in the PRG all H I
emission is associated with the polar ring, whose outer H I contours
appear to warp away from the poles, in the same sense as the optical
warp. No sign of interaction was found between the PRG and its close
companion, MCG 07-31-049, a 15.7 mag Irregular at V_hel_ = 5470 km s^-1^
(63 km s^-1^ higher than that of the PRG) at 1.4' distance. The only
other object within the Nancay search area is a 15.7 mag galaxy pair
of 0.5' diameter with a redshift of 5606 km s^-1^, at 1.5' distance.

2. 1994AJ....107...99R
Re:UGC 09796
A-6 = UGC 9796 = II Zw 73. The GB 140' sees 2.1 x 10^10^ M_sun_ of gas,
nearly five times as much as the Westerbork synthesis observations
reported by Schechter et al. (1984) for the polar ring alone; the
linewidths are quite similar, but our profile is very asymmetric and is
not double-horned. Seven companion galaxies were also detected in the
Westerbork map; five of these lie within the GB 140' beam, including the
near neighbor MCG +07-31-049 which is separated by 1.5' and 20 km s^-1^
from UGC 9796. The companions are partly responsible for the high gas-to-
galaxy-light ratio of M_HI_/L_B_ = 6.2 of this system. The total H I mass
integrated from the Westerbork map within 12' is 1.6 x 10^10^ M_sun_ (R.
Sancisi, private communication), close to our result. Although no IRAS
flux has been reported for UGC 9796, 60 micron flux has been reported for
its companion, MCG +07-31-049.

3. 1994A&A...291...57R
Re:UGC 09796
UGC 9796 (II Zw 73)
As in the case of UGC 7576, our H{alpha} rotation curve is close to the
HI rotation curve found by Schechter et al. (l984b). The rotation curve
shows approximately linear rising up to 20" -25" from the centre, and
remains flat out to the edge at r~60" (21.5 kpc = 15.5h). The shape of
the rotation curve indicates that the polar ring is actually a
differentially rotating disk. The total mass to B-luminosity ratio within
the last point of the observed rotation curve
(r_max_ = 60", V_r_(r_max_) = 172 km/s) is 18.f_sun_.

4. 1973UGC...C...0000N
Re:UGC 09796
Diffuse "spindle" (dwarf?) with elongated "core", probably superimposed
companion
Paired with 15 14.2 +43 20 at 1.5, 107, 0.7 x 0.6, patchy, irregular or
multiple system
In group of 5 with 15 13.3 +43 20 brightest, 0.9 x 0.6, I0?, m=15.2
Several small galaxies in vicinity may belong to this group

5. 1971CGPG..C...0000Z
Re:CGPG 1514.2+4320 NED02
II Zw 073 NOTES02
In a Post eruptive pair of galaxies.
Irregular, blue companion.
85 arcsec [east] of CGPG 1514.2+4320 NED01
Literature: Zwicky 1965a, 1967a.
m(pg) = 16.2


Back to NED Home