Astronomy:NGC 3044

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Short description: Galaxy in the constellation Sextans
NGC 3044
NGC 3044 legacy dr10.jpg
legacy surveys image of NGC 3044
Observation data (J2000 epoch)
ConstellationSextans
Right ascension 09h 53m 40.884s[1]
Declination+01° 34′ 46.74″[1]
Helio radial velocity1,289 km/s[2]
Galactocentric velocity1,130 km/s[2]
Distance67 Mly (20.6 Mpc)[2]
Group or clusterLeo Cloud[3]
Apparent magnitude (V)12.5[4]
Apparent magnitude (B)12.4[5]
Characteristics
TypeSBc[6]
Mass6.4×1010[7] M
Notable featuresEdge-on galaxy
Other designations
IRAS 09511+0148, NGC 3044, UGC 5311, MCG+00-25-031[8]

NGC 3044 is a barred spiral galaxy in the equatorial constellation of Sextans. It was discovered on December 13, 1784, by German-born English astronomer William Herschel.[9][10] In 1888, Danish astronomer J. L. E. Dreyer described it as "very faint, very large, very much extended 122°".[11] It is located at an estimated distance of 67 million light years.[2] In the B band of the UBV photometric system, the galaxy spans 4.70 by 0.80[5] with the major axis aligned along a position angle of 113°.[7] It is a relatively isolated galaxy with no nearby companions.[7] R. B. Tully in 1988 assigned it as a member of the widely displaced Leo Cloud.[3]

The morphological classification of NGC 3044 is SBc,[6] indicating a barred spiral (SB) with somewhat loosely-wound spiral arms (c). It is being viewed edge-on, with a galactic plane that is inclined at an angle of 79°± to the line of sight from Earth.[12] The disk appears lob-sided and disturbed, suggesting a recent merger or interaction. There is a diffuse ionized gas extending to kpc above the center of the plane.[7]

The stars in the galaxy have a combined mass of approximately 1.01×1010 M,[6] and the star formation rate is 2.77 M·yr–1.[6] The total mass of the atomic gas in this galaxy is 3.5×109 M,[7] and it has a dust mass of 1.6×108 M.[3] The galaxy as a whole has a dynamic mass of 6.4×1010 M.[7]

A supernova was observed on March 13, 1983, at an offset 29 east, 11″ south of NGC 3044.[13] Designated SN 1983E, it was a suspected type II supernova that reached a peak magnitude of 14.9 (B) around March 15.[14]

References

  1. 1.0 1.1 Skrutskie, Michael F. et al. (February 1, 2006), "The Two Micron All Sky Survey (2MASS)", The Astronomical Journal 131 (2): 1163–1183, doi:10.1086/498708, ISSN 0004-6256, Bibcode2006AJ....131.1163S. 
  2. 2.0 2.1 2.2 2.3 Tully, R. Brent et al. (August 2016), "Cosmicflows-3", The Astronomical Journal 152 (2): 21, doi:10.3847/0004-6256/152/2/50, 50, Bibcode2016AJ....152...50T. 
  3. 3.0 3.1 3.2 Irwin, J. A. et al. (August 2013), "The 617 MHz-λ 850 μm correlation (cosmic rays and cold dust) in NGC 3044 and NGC 4157", Monthly Notices of the Royal Astronomical Society 433 (4): 2958–2974, doi:10.1093/mnras/stt937, Bibcode2013MNRAS.433.2958I. 
  4. Cavin, Jerry D. (2011), The Amateur Astronomer's Guide to the Deep-Sky Catalogs, Springer New York, p. 167, ISBN 9781461406563, https://books.google.com/books?id=obLAoHOVodAC&pg=PA167. 
  5. 5.0 5.1 Nilson, Peter (1973), "Uppsala general catalogue of galaxies", VizieR On-line Data Catalog: VII/26D, Bibcode1995yCat.7026....0N. 
  6. 6.0 6.1 6.2 6.3 Hodges-Kluck, Edmund et al. (December 2016), "Ultraviolet Halos around Spiral Galaxies. I. Morphology", The Astrophysical Journal 833 (1): 58, doi:10.3847/1538-4357/833/1/58, 58, Bibcode2016ApJ...833...58H. 
  7. 7.0 7.1 7.2 7.3 7.4 7.5 Zschaechner, Laura K. et al. (January 2015), "Investigating Disk-halo Flows and Accretion: A Kinematic and Morphological Analysis of Extraplanar H I in NGC 3044 and NGC 4302", The Astrophysical Journal 799 (1): 61, doi:10.1088/0004-637X/799/1/61, 61, Bibcode2015ApJ...799...61Z. 
  8. "NGC 3044". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3044. 
  9. Erdmann, Jr., Robert E. (December 2006), "NGC Discoverer's List", The NGC/IC Project, https://ngcicproject.observers.org/erdmann/NGC_Discoverers_01.txt, retrieved 2023-03-05. 
  10. Seligman, Courtney (Aug 25, 2021), NGC Objects: NGC 3000 - 3049, https://cseligman.com/text/atlas/ngc30.htm#3044, retrieved 2023-03-05. 
  11. Sulentic, Jack W. et al. (1973), The Revised New Catalogue of Nonstellar Astronomical Objects, Tucson: University of Arizona Press, Bibcode1973rncn.book.....S. 
  12. Singal, J. et al. (November 1989), "Axial Ratio of Edge-On Spiral Galaxies as a Test for Bright Radio Halos", Astronomy and Astrophysics Supplement Series 81: 51–58, Bibcode1989A&AS...81...51H. 
  13. Kosai, H. et al. (April 1983), Marsden, B. G., ed., "Supernovae", IAU Circular 3789 (1), Bibcode1983IAUC.3789....1K. 
  14. Barbon, R. et al. (December 1989), "The Asiago supernova catalogue.", Astronomy and Astrophysics Supplement Series 81: 421–443, Bibcode1989A&AS...81..421B. 

Further reading