The Counter-Rotating Twin Disks in NGC 4550
نویسندگان
چکیده
منابع مشابه
Making Spirals with Counter - Rotating Disks 3
A single merger scenario for making galaxies such as NGC 4550 possessing equal coplanar counter-rotating stellar disks is investigated by collisionless N-body technique. The scenario is successful in producing an axisymmetric disk made of two almost equal counter-rotating populations. The final disk shows a clear bimodal line profile in the outer part, which demonstrates that disk-disk mergers ...
متن کاملMaking Spirals with Counter-rotating Disks
A single merger scenario for making galaxies such as NGC 4550 possessing equal coplanar counter-rotating stellar disks is investigated by collisionless N-body technique. The scenario is successful in producing an axisymmetric disk made of two almost equal counter-rotating populations. The final disk shows a clear bimodal line profile in the outer part, which demonstrates that disk-disk mergers ...
متن کاملElectrovacuum Static Counter - Rotating Relativistic Dust Disks
A detailed study of the Counter-Rotating Model (CRM) for generic electrostatic (magnetostatic) axially symmetric thin disks without radial pressure is presented. We find a general constraint over the counter-rotating tangential velocities needed to cast the surface energy-momentum tensor of the disk as the superposition of two counter-rotating charged dust fluids. We then show that this constra...
متن کاملOrigin of the Counter - Rotating Gas in NGC 1596 3
We present Australia Telescope Compact Array (ATCA) H I imaging of the edge-on galaxy NGC 1596, which was recently found to have counter-rotating ionized gas in its center (< 15). We find a large H I envelope associated with a nearby companion, the dwarf irregular galaxy NGC 1602. The H I covers a region ≈ 11.9×13.4 (62×70 kpc) and the total H I mass detected is 2.5±0.1× 10 M⊙ (assuming an 18 M...
متن کاملMolecular gas and dust in NGC 4550
We report the detection of 1 × 10 M⊙ of molecular gas in the central region of the S0/E7 galaxy NGC4550, inferred from observations of CO(1–0) emission. Dust is detected in HST WFPC2 images and found to be asymmetrically distributed around the nucleus, only extending to a galactocentric distance of 7 (600 pc). The shape of the CO emission profile is consistent with a molecular gas distribution ...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1993
ISSN: 0074-1809
DOI: 10.1017/s0074180900123885