NGC 3726 is abarredspiral galaxy located in the constellationUrsa Major. It is located at a distance of circa 45 millionlight years from Earth, which, given its apparent dimensions, means that NGC 3726 is about 85,000 light years across. It was discovered byWilliam Herschel on February 5, 1788.[2]
NGC 3726 is a spiral galaxy with a smallbar, seen with medium inclination.[3] The bar is 1.38 arcseconds across and it ends at an inner ring with 1.50 arcseconds diameter.[4] The bluest regions of star formation are located at the ring.[5]
Three arms emanate from the ring. The southern is the brightest and the north is the best defined. The third arm emanates from the east side of the ring, moves towards NNW and then bends sharply to the southwest.[6] Thespiral arms are thick and well defined and can be traced for half a revolution. The arms then branch into fragments. The spiral pattern of the galaxy is a bit disturbed[7] and asymmetrical.[6] Numerous brightHII regions are present in the galaxy.[7] The galaxy has a massivedark matterhalo.[5]
^Comerón, S.; Salo, H.; Laurikainen, E.; Knapen, J. H.; Buta, R. J.; Herrera-Endoqui, M.; Laine, J.; Holwerda, B. W.; Sheth, K.; Regan, M. W.; Hinz, J. L.; Muñoz-Mateos, J. C.; Gil de Paz, A.; Menéndez-Delmestre, K.; Seibert, M.; Mizusawa, T.; Kim, T.; Erroz-Ferrer, S.; Gadotti, D. A.;Athanassoula, E.; Bosma, A.; Ho, L. C. (19 February 2014). "ARRAKIS: atlas of resonance rings as known in the S4G".Astronomy & Astrophysics.562: A121.arXiv:1312.0866.Bibcode:2014A&A...562A.121C.doi:10.1051/0004-6361/201321633.S2CID119295831.
^abEskridge, Paul B.; Frogel, Jay A.; Pogge, Richard W.; Quillen, Alice C.; Berlind, Andreas A.; Davies, Roger L.; DePoy, D. L.; Gilbert, Karoline M.; Houdashelt, Mark L.; Kuchinski, Leslie E.; Ramirez, Solange V.; Sellgren, K.; Stutz, Amelia; Terndrup, Donald M.; Tiede, Glenn P. (November 2002). "Near-Infrared and Optical Morphology of Spiral Galaxies".The Astrophysical Journal Supplement Series.143 (1):73–111.arXiv:astro-ph/0206320.Bibcode:2002ApJS..143...73E.doi:10.1086/342340.S2CID15491635.
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