The peculiar galaxy NGC 4650 A (α=12 h 42 m . 1; = δ—40° 26′; 1950·0) has been studied by means of direct and spectral observations with the ESO 3·6-m telescope. It is interpreted as a prolate, elliptical galaxy surrounded by a warped ring of H II regions, dust and ...
Kinematics and photometry of the polar ring galaxy NGC 4650A, including new observations of the rotation and velocity dispersion of its central stellar disk, are used to infer the presence of a dark matter halo and to measure its shape. Fits to the observed disk and polar ring rotation ...
Polar ring galaxies, which have an optical ring outside and perpendicular to the plane of their central disks, provide a unique opportunity to probe the gravitational potential of a galaxy in two perpendicular planes. We place limits on the flattening of the dark matter halo of NGC 4650A by ...
galaxy (type ?) in Centaurus (RA 12 44 29.2, Dec -40 43 40) See the galaxy's PGC entry for anything else (Note: entry not yet created, so link is 'broken') PGC 42951 (= PGC 583203 = ESO 322-069= "NGC 4650A") Not an NGC object, but listed here because sometimes called NGC...
A magnitude 12.9 spiral galaxy (type Sab?) in Aquarius (RA 21 01 07.8, Dec -00 11 43) Historical Identification: Per Dreyer, NGC 7001 (= GC 4622 = JH 2095, 1860 RA 20 53 55, NPD 90 44.6) is "extremely faint, small, extended 0°". The first IC adds "7001 is pretty bright,...
NGC4650A is a polar disk galaxy: this is a peculiar object composed by a central spheroidal component, the host galaxy (HG), and an extended disk made up by gas, stars and dust, which orbits nearly perpendicular to the plane of the central galaxy. The existence of two decoupled ...
NGC4650A is a polar disk galaxy: this is a peculiar object composed by a central spheroidal component, the host galaxy (HG), and an extended disk made up by gas, stars and dust, which orbits nearly perpendicular to the plane of the central galaxy. The existence of two decoupled ...
We have compared the measured metallicities for the polar structure in NGC4650A with those of different morphological types and we have found that they are similar to those of late-type galaxies: such results is consistent with a polar disk formed by accretion from cosmic web filaments of ...
A polar ring system is an SO galaxy, a disc galaxy, with a ring of gas, dust and stars orbiting at a large inclination, more or less over the pole of the SO. The disc and ring rotate about axes which are approximately (but not exactly) orthogonal. The ring is larger than the disc...
A magnitude 11.5 spiral galaxy (type SAB(rs)bc) in Virgo (RA 12 40 36.9, Dec -05 07 58) Historical Identification: Per Dreyer, NGC 4602 (= GC 3140 = JH 1380 = WH II 184, 1860 RA 12 33 27, NPD 94 21.8) is "faint, large, extended, very gradually a little brighter middle"....