NGC 1448

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NGC 1448
PIA21086 - Galaxy NGC 1448 with Active Galactic Nucleus.jpg
NGC 1448 by NuSTAR and Chandra
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. Five supernovae have been discovered in NGC 1448, SN 1983S (14.5 mag, type II), (14.5 mag, type Ia), SN 2003hn (14.1 mag. type II), SN 2014df (14.0 mag., type Ib) and SN 2021pit (12.3 mag. type Ia) .[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 at NGC 1433 group,[5] part of the Doradus cloud of galaxies.

Gallery[]

  • NGC 1448 taken by the Hubble's Wide Field Camera 3.[6]

References[]

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 1448. Retrieved 2016-01-18.
  2. ^ List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
  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. Retrieved 1 January 2016.
  6. ^ "Seeing things sideways". www.spacetelescope.org. Retrieved 13 March 2017.

External links[]


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