ٻِه-گھُٻِيَلَ ڪهڪشان
Wikipedia طرفان
A lenticular galaxy is a type of galaxy which is intermediate between an elliptical galaxy and a spiral galaxy in galaxy morphological classification schemes.[1] Lenticular galaxies are disc galaxies (like spiral galaxies) which have used up or lost their interstellar matter, therefore, very little star formation is thought to occur and they consist mainly aging stars.(like elliptical galaxies). The dust in most lenticular galaxies is generally found only near the nucleus and generally follows the light profile of the galaxies' bulges. Because of their ill-defined spiral arms, if they are inclined face-on it is often difficult to distinguish between them and elliptical galaxies.
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[سنواريو] Morphological variations
توڻي جو ٻِه -گھُٻيل ڪهڪشائون، گھنڊيدار ڪهڪشائن جيتريون مفترق نه ٿينديون آهن، پر پوءِ به کين ظاهري اپيئرنس جي لحاظ کان ڪيترن ئي ننڍ قسمن ۾ ورهائي سگھجي ٿو. انهن مان ڪن ننڍ قسمن جي وضاحت هيٺ پيش ڪجي ٿي.
[سنواريو] Bars
In the de Vaucouleurs classification system, lenticular galaxies may be split into three subclasses based on the presence or absence of a central bar structure. The SA0 designation is used for lenticular galaxies with no apparent bars. The SB0 designation is used for galaxies with a strong bar. The SAB0 designation is an intermediate class that may be referred to as weakly barred.[1]
[سنواريو] اندريون ڇلو ۽ S-ڊولا ننڍ قسم
Some lenticular galaxies are also given inner ring (S0(r)) and S-shaped (S0(s)) designations as well as an intermediate designation (S0(rs)). However, these designations were defined primarily for spiral galaxies, and finding objects that represent some of these classes is very difficult.[1]
[سنواريو] حوالا
- ↑ 1.0 1.1 1.2 R. J. Buta, H. G. Corwin, Jr., S. C. Odewahn (2007). The de Vaucouleurs Atlas of Galaxies. Cambridge: Cambridge University. ISBN 0-521-82048-6.
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هيءُ ڪهڪشان بابت هڪ ڪچو مضمون آهي. ان ۾ مناسب وڌارو آڻي توهان وڪيپيڊيا جي مدد ڪري سگھو ٿا. |
