NGC 4618
Coordinates: 
12h 41m 32.8s, +41° 09′ 03″
12h 41m 32.8s, +41° 09′ 03″NGC 4618 is a distorted barred
Magellanic clouds
.
One supernova has been observed in NGC 4618: SN 1985F (type type Ib).[4]
Structure
Unlike most
spiral arm, which gives the galaxy an asymmetric appearance.[3] This galaxy was included in the Atlas of Peculiar Galaxies as one of three examples of nearby galaxies with single spiral arms.[5]
Although NGC 4618 is labeled as peculiar, many similar galaxies have been identified.
It has been hypothesized that this galaxy's asymmetric structure may be the result of a
gravitational interaction with NGC 4625.[3] Such asymmetric structure is commonly seen among many interacting galaxies. However, observations of neutral hydrogen gas in NGC 4618 and NGC 4625 imply that only some of the gas outside the optical disks of NGC 4618 is affected by the gravitational interaction.[6]
This may indicate that NGC 4618's one-arm shape forms as the result of processes that are intrinsic to the galaxy itself.
Environment
As mentioned above, NGC 4618 is
See also
- Canes II Group
- NGC 5713 - a similar asymmetric spiral galaxy
References
- ISBN 978-0-933346-51-2.
- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 4618. Retrieved 2006-11-15.
- ^ ISBN 978-0-87279-667-6.
- ^ Transient Name Server entry for SN 1985F. Retrieved 29 March 2023.
- doi:10.1086/190147.
- S2CID 14636586.
External links
Media related to NGC 4618 at Wikimedia Commons
| Stars |
| ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
| |||||||||||
| Galaxies |
| ||||||||||
| |||||||||||
| |||||||||||
