Astronomy:NGC 1448

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NGC 1448
NGC 1448 by the Very Large Telescope
Observation data (J2000 epoch)
ConstellationHorologium
Right ascension 03h 44m 31.8804s[1]
Declination−44° 38′ 41.15″[1]
Redshift0.003896[1]
Helio radial velocity1,168±2 km/s[1]
Distance56.5 ± 7.6 Mly (17.3 ± 2.3 Mpc)[1]
Apparent magnitude (V)10.7
Characteristics
TypeSAcd [1]
Size~142,800 ly (43.78 kpc) (estimated)[1]
Apparent size (V)7.6′ × 1.7′[1]
Other designations
ESO 249- G 016, IRAS 03428-4448, NGC 1457, MCG-07-08-005, PGC 13727[1]

NGC 1448 is an unbarred spiral galaxy seen nearly edge-on in the constellation Horologium. It is at a distance of 55 million light years from Earth. It was discovered by British astronomer John Herschel on 24 October 1835.[2] Herschel observed the galaxy again on 14 December 1835, resulting in it being listed twice in the New General Catalogue, as NGC 1448 and as NGC 1457.[2]

From the spectral analysis of SN 2001el, over a dozen diffuse interstellar bands were discovered in NGC 1448 – one of the few cases that these bands were observed outside of the Milky Way. However, the bands were significantly weaker at SN 2003hn.[3]

In January 2017 it was announced that evidence for a supermassive black hole in NGC 1448 had been found in the center of the galaxy.[4]

The galaxy belongs to the NGC 1433 group,[5] part of the Doradus cloud of galaxies.

Supernovae

Six supernovae have been observed in NGC 1448:

  • SN 1983S (Type II, mag. 14.5) was discovered by Robert Evans on 6 October 1983.[6][7]
  • SN 2001el (Type Ia, mag. 14.5) was discovered by Berto Monard on 17 September 2001.[8][9] It reached magnitude 12.3, making it the brightest supernova of 2001.[10]
  • SN 2003hn (Type II, mag. 14.1) was discovered by Robert Evans on 25 August 2003.[11][12]
  • SN 2014df (Type Ib, mag. 14) was discovered by Berto Monard on 3 June 2014.[13][14]
  • SN 2020zbv (Type IIP, mag. 18.83) was discovered by the Distance Less Than 40 Mpc Survey (DLT40) on 10 November 2020.[15]
  • SN 2021pit (Type Ia, mag. 13.5) was discovered by ASAS-SN on 10 June 2021.[16]

The galaxy in different wavelengths

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NASA/IPAC Extragalactic Database". Results for NGC 1448. https://ned.ipac.caltech.edu/byname?objname=ngc+1448. 
  2. ↑ 2.0 2.1 Seligman, Courtney. "New General Catalogue Objects: NGC 1448". https://cseligman.com/text/atlas/ngc14.htm#1448. 
  3. ↑ J. Sollerman; N. Cox; S. Mattila; P. Ehrenfreund; L. Kaper; B. Leibundgut; P. Lundqvist (January 2005). "Diffuse Interstellar Bands in NGC 1448". Astronomy and Astrophysics 429 (2): 559–567. doi:10.1051/0004-6361:20041465. Bibcode: 2005A&A...429..559S. http://www.aanda.org/articles/aa/full/2005/02/aa1465/aa1465.html. Retrieved 16 January 2016. 
  4. ↑ Two monster black holes found lurking in nearby galaxies
  5. ↑ Dmitry Makarov; Igor Karachentsev (2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". MNRAS 412 (4): 2498–2520. doi:10.1111/j.1365-2966.2010.18071.x. Bibcode: 2011MNRAS.412.2498M. 
  6. ↑ Evans, R.; McLean, D. J.; Cragg, T.; Thompson, G. (1983). "Supernovae". International Astronomical Union Circular (3877): 2. Bibcode: 1983IAUC.3877....2E. http://www.cbat.eps.harvard.edu/iauc/03800/03877.html#Item2. 
  7. ↑ "SN 1983S". IAU. https://www.wis-tns.org/object/1983S. 
  8. ↑ Monard, A. G.; Bock, G.; Wassilieff, A.; Biggs, J. (2001). "Supernova 2001el in NGC 1448". International Astronomical Union Circular (7720): 1. Bibcode: 2001IAUC.7720....1M. http://www.cbat.eps.harvard.edu/iauc/07700/07720.html#Item1. 
  9. ↑ "SN 2001el". IAU. https://www.wis-tns.org/object/2001el. 
  10. ↑ Bishop, David. "Bright Supernovae - 2001". https://www.rochesterastronomy.org/sn2001/index.html. 
  11. ↑ Evans, R.; Bock, G.; Krisciunas, K.; Espinoza, J. (2003). "Supernova 2003hn in NGC 1448". International Astronomical Union Circular (8186): 1. Bibcode: 2003IAUC.8186....1E. http://www.cbat.eps.harvard.edu/iauc/08100/08186.html#Item1. 
  12. ↑ "SN 2003hn". IAU. https://www.wis-tns.org/object/2003hn. 
  13. ↑ Monard, L. A. G.; Kneip, R.; Brimacombe, J.; Sato, H.; Childress, M.; Zhou, G.; Scalzo, R.; Yuan, F. et al. (2014). "Supernova 2014df in NGC 1448 = PSN J03442399-4440081". Central Bureau Electronic Telegrams 3977: 1. Bibcode: 2014CBET.3977....1M. 
  14. ↑ "SN 2014df". IAU. https://www.wis-tns.org/object/2014df. 
  15. ↑ "SN 2020zbv". IAU. https://www.wis-tns.org/object/2020zbv. 
  16. ↑ "SN 2021pit". IAU. https://www.wis-tns.org/object/2021pit. 
  17. ↑ "Seeing things sideways". https://www.spacetelescope.org/images/potw1711a/. 



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