File:NGC 3603 Cluster.jpg
Original file (1,600 × 1,600 pixels, file size: 441 KB, MIME type: image/jpeg)
Captions
Summary[edit]
DescriptionNGC 3603 Cluster.jpg |
English: Image of the NGC 3603 region were obtained in three near-IR filter bands (Js, H and Ks) with the ISAAC instrument at the ANTU telescope.
NGC 3603 is located in the Carina spiral arm in the Milky Way galaxy at a distance of about 20,000 light-years (6-7 kpc). It is the only massive, galactic "HII-region" (so denoted by astronomers because part of its hydrogen is ionized) in which a central cluster of strongly UV-radiating stars of types "O" and "B" that ionize the nebula can be studied at visual and near-infrared wavelengths. This is because the line-of-sight is reasonably free of dust in this direction; the dimming in near-infrared radiation due to intervening matter between the nebula and us is only about a factor of 2 (contrary to 80 in visible light). The total mass of the hot O- and B-stars in NGC 3603 is over 2000 solar masses. Together, the more than fifty heavy and bright O-stars in NGC 3603 have about 100 times the ionizing power of the well-known Trapezium cluster in the Orion Nebula. In fact, the star cluster in NGC 3603 is in many respects very similar to the core of the large, ionizing cluster in the approximately eight times more distant Tarantula Nebula in the LMC.A most important conclusion of this study is that there are lots of sub-solar mass stars in NGC 3603 , i.e., contrary to several theoretical predictions, these low-mass stars do form in violent starbursts !The overall age of stars in the contraction phase that are located in the innermost region of NGC 3603 was found to be 300 000 - 1 000 000 years. The counts clearly show that this cluster is well populated in sub-solar mass stars. |
||||
Date | |||||
Source | http://www.eso.org/gallery/v/ESOPIA/StarClusters/phot-38a-99.tif.html | ||||
Author | ESO | ||||
Permission (Reusing this file) |
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:22, 16 September 2008 | 1,600 × 1,600 (441 KB) | Lars Lindberg Christensen (talk | contribs) | {{Information |Description={{en|1=Image of the NGC 3603 region were obtained in three near-IR filter bands (Js, H and Ks) with the ISAAC instrument at the ANTU telescope. NGC 3603 is located in the Carina spiral arm in the Milky Way galaxy at a distance |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ast.wikipedia.org
- Usage on az.wikipedia.org
- Usage on ca.wikipedia.org
- Usage on en.wikipedia.org
- Usage on en.wikiversity.org
- Usage on es.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on gl.wikipedia.org
- Usage on kk.wikipedia.org
- Usage on pt.wikipedia.org
- Usage on uk.wikipedia.org
- Usage on zh.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
_error | 0 |
---|