NGC 4522
Mly[2] | |
---|---|
Group or cluster | Virgo Cluster |
Apparent magnitude (V) | 13.0[1] |
Characteristics | |
Type | SB(s)cd[1] |
Size | ~68,850 ly (estimated)[1] |
Apparent size (V) | 3.95 x 0.84[1] |
Other designations | |
CGCG 70-168, IRAS 12311+0926, MCG 2-32-137, PGC 41729, UGC 7711, VCC 1516[1] |
NGC 4522 is an edge-on
Ram-pressure stripping
The selectively disturbed
However at NGC 4522's projected distance from Messier 87 (~1 Mpc), and assumption of a static smooth ICM and other "standard values", the force of the ram-pressure stripping exerted at the galaxy's location appears to be an order of magnitude less than needed to cause the observed truncation of the galaxy's gas disk. Despite this, NGC 4522 may have recently passed through a region of enhanced ICM density. Possibly, the infall of the Messier 49 group into the Virgo Cluster has stirred up the ICM of the cluster, locally enhancing the ram pressure exerted on NGC 4522.[8][9]
Features
In NGC 4522, there are several features that have been suggested to be attributes of ram-pressure stripping.
The northeast region of NGC 4522, contains a large, continuous
The southwest region features a number of decoupled extraplanar dust clouds and an arm structure containing a number of HII regions and groupings of bright young blue stars.[10]
Star formation
As a consequence of
Some of the newly formed
See also
References
- ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 4522. Retrieved 2017-12-15.
- ^ "parsecs to lightyears conversion". Retrieved 2017-09-30.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-12-16.
- ^ "Revised NGC Data for NGC 4522". spider.seds.org. Retrieved 2017-12-16.
- ^ "Hubble views NGC 4522". www.spacetelescope.org. Retrieved 2017-12-16.
- ^ "New General Catalog Objects: NGC 4500 - 4549". cseligman.com. Retrieved 2017-11-08.
- ^ S2CID 12775150.
- S2CID 18162129.
- S2CID 16097635.
- S2CID 118363603.
External links
- NGC 4522 on