NGC 1349 is a lenticular galaxy in the constellation Taurus. The galaxy lies about 290 million light years away from Earth, which means, given its apparent dimensions, that NGC 1349 is approximately 80,000 light years across.[1] It was discovered by Lewis Swift on December 20, 1886.[3]

The galaxy is characterised as a lenticular galaxy, having a disk and a bulge. Almost 95% of the stars in the bulge are old, created more than 6 billion years ago, while the stars at the disk are younger, as 59% have ages between 1 and 6 billion years.[4] The spectrum of the nuclear region shows it is a combination of a LINER and a star formation area.[5] The outer region of the galaxy features structures that look like spiral arms. These spiral structures host about 80% of the galaxy's total H-alpha emission and are a place of active star formation, in HII regions. The star formation rate is estimated to be 0.1–0.3 M☉ per year.[6]

The galaxy appears to be isolated.[6]

References

  1. ^ a b c d e f g h i j "Results for object NGC 1349". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 17 February 2025.
  2. ^ "Revised NGC Data for NGC 1349". spider.seds.org. Retrieved 30 March 2024.
  3. ^ Seligman, Courtney. "NGC 1349 (= PGC 13088 = UGC 2774 = CGCG 416-013 = MCG +01-09-006)". Celestial Atlas. Retrieved 19 November 2018.
  4. ^ Méndez-Abreu, J; Sánchez, S F; de Lorenzo-Cáceres, A (11 April 2019). "Spectro-photometric decomposition of galaxy structural components". Monthly Notices of the Royal Astronomical Society. 484 (3): 4298–4314. doi:10.1093/mnras/stz276.
  5. ^ Gomes, J. M.; Papaderos, P.; Vílchez, J. M.; Kehrig, C.; Iglesias-Páramo, J.; Breda, I.; Lehnert, M. D.; Sánchez, S. F.; Ziegler, B.; dos Reis, S. N.; Bland-Hawthorn, J.; Galbany, L.; Bomans, D. J.; Rosales-Ortega, F. F.; Walcher, C. J.; García-Benito, R.; Márquez, I.; del Olmo, A.; Mollá, M.; Marino, R. A.; Catalán-Torrecilla, C.; González Delgado, R. M.; López-Sánchez, á. R. (February 2016). "Spectroscopic aperture biases in inside-out evolving early-type galaxies from CALIFA". Astronomy & Astrophysics. 586: A22. doi:10.1051/0004-6361/201527312.
  6. ^ a b Gomes, J. M.; Papaderos, P.; Vílchez, J. M.; Kehrig, C.; Iglesias-Páramo, J.; Breda, I.; Lehnert, M. D.; Sánchez, S. F.; Ziegler, B.; dos Reis, S. N.; Bland-Hawthorn, J.; Galbany, L.; Bomans, D. J.; Rosales-Ortega, F. F.; Walcher, C. J.; García-Benito, R.; Márquez, I.; del Olmo, A.; Mollá, M.; Marino, R. A.; Catalán-Torrecilla, C.; González Delgado, R. M.; López-Sánchez, á. R. (January 2016). "Spiral-like star-forming patterns in CALIFA early-type galaxies". Astronomy & Astrophysics. 585: A92. arXiv:1511.00744. Bibcode:2016A&A...585A..92G. doi:10.1051/0004-6361/201525974.
Allikas: https://en.wikipedia.org/wiki/NGC_1349
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