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NGC 1448

Coordinates: Sky map 03h 44m 31.8804s, −44° 38′ 41.15″
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NGC 1448
NGC 1448 by NuSTAR and the Chandra X-ray Observatory
Observation data (J2000 epoch)
ConstellationHorologium
Right ascension03h 44m 31.8804s[1]
Declination−44° 38′ 41.15″[1]
Redshift0.003896[1]
Heliocentric 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

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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 (bio-fr) 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]
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See also

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References

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  1. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 1448. Retrieved 2016-01-18.
  2. ^ a b Seligman, Courtney. "New General Catalogue Objects: NGC 1448". Celestial Atlas. Retrieved 28 December 2024.
  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. arXiv:astro-ph/0409340. Bibcode:2005A&A...429..559S. doi:10.1051/0004-6361:20041465. S2CID 18036448. 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. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID 119194025.
  6. ^ Evans, R.; McLean, D. J.; Cragg, T.; Thompson, G. (1983). "Supernovae". International Astronomical Union Circular (3877): 2. Bibcode:1983IAUC.3877....2E.
  7. ^ "SN 1983S". Transient Name Server. IAU. Retrieved 23 December 2024.
  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.
  9. ^ "SN 2001el". Transient Name Server. IAU. Retrieved 23 December 2024.
  10. ^ Bishop, David. "Bright Supernovae - 2001". Rochester Astronomy. Retrieved 28 December 2024.
  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.
  12. ^ "SN 2003hn". Transient Name Server. IAU. Retrieved 23 December 2024.
  13. ^ Monard, L. A. G.; Kneip, R.; Brimacombe, J.; Sato, H.; Childress, M.; Zhou, G.; Scalzo, R.; Yuan, F.; Zhang, B.; Ruiter, A.; Seitenzahl, I.; Schmidt, B.; Tucker, B. (2014). "Supernova 2014df in NGC 1448 = PSN J03442399-4440081". Central Bureau Electronic Telegrams. 3977: 1. Bibcode:2014CBET.3977....1M.
  14. ^ "SN 2014df". Transient Name Server. IAU. Retrieved 23 December 2024.
  15. ^ "SN 2020zbv". Transient Name Server. IAU. Retrieved 23 December 2024.
  16. ^ "SN 2021pit". Transient Name Server. IAU. Retrieved 23 December 2024.
  17. ^ "Seeing things sideways". www.spacetelescope.org. Retrieved 13 March 2017.
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