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NGC 1448

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NGC 1448
NGC 1448 by NuSTAR and the Chandra X-ray Observatory
Observation data (J2000 epoch)
ConstellationHorologium
Right ascension03h 44m 31.9s[1]
Declination−44° 38′ 41″[1]
Redshift1168 ± 2 km/s[1]
Distance56.5 ± 7.6 Mly (17.3 ± 2.3 Mpc)[1]
Apparent magnitude (V)10.7
Characteristics
TypeSAcd [1]
Apparent size (V)7.6′ × 1.7′[1]
Other designations
NGC 1457, PGC 13727[1]

NGC 1448 or NGC 1457 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 John Herschel in 1835.

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.[2]

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.[3]

The galaxy belongs to the NGC 1433 group,[4] part of the Doradus cloud of galaxies.

Supernovae

Six supernovae have been discovered in NGC 1448: SN 1983S (type II, mag. 14.5),[5] SN 2001el (type Ia, mag. 14.5),[6] SN 2003hn (type II, mag. 14.1),[7] SN 2014df (type Ib, mag. 14),[8] SN 2020zbv (type IIP, mag. 18.8),[9] and SN 2021pit (type Ia, mag. 12.3).[10]

References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 1448. Retrieved 2016-01-18.
  2. ^ 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.
  3. ^ Two monster black holes found lurking in nearby galaxies
  4. ^ 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.
  5. ^ Transient Name Server entry for SN 1983S. Retrieved 25 March 2023.
  6. ^ Transient Name Server entry for SN 2001el. Retrieved 25 March 2023.
  7. ^ Transient Name Server entry for SN 2003hn. Retrieved 25 March 2023.
  8. ^ Transient Name Server entry for SN 2014df. Retrieved 25 March 2023.
  9. ^ Transient Name Server entry for SN 2020zbv. Retrieved 25 March 2023.
  10. ^ List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
  11. ^ "Seeing things sideways". www.spacetelescope.org. Retrieved 13 March 2017.
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