NGC 7090

NGC 7090
NGC 7090 image from the Hubble Space Telescope combines orange light (colored blue here), infrared (colored red) and emissions from glowing hydrogen gas (also in red)[1][2]
Observation data (J2000 epoch)
ConstellationIndus
Right ascension21h 36m 28.865s[3]
Declination−54° 33′ 26.35″[3]
Redshift0.002859±0.000020[4]
Heliocentric radial velocity846 km/s[5]
Distance31.0 Mly (9.5 Mpc)[6]
Apparent magnitude (V)10.51[7]
Characteristics
TypeScd[8]
MassStellar: 5.47×109[6] M
Other designations
IRAS 21329-5446, 2MASX J21362886-5433263, NGC 7090, LEDA 67045[7]

NGC 7090 is a spiral galaxy[8] in the southern constellation of Indus located about 31 million light-years away.[6] English astronomer John Herschel first observed this galaxy on 4 October 1834.[1][2]

The morphological class of NGC 7090 is Scd,[8] indicating it is a spiral with loosely-wound and somewhat disorganized arms. The galactic plane is inclined at an angle of 89° to the line of sight from the Earth,[8] giving it an edge-on view. The combined mass of the stars in this galaxy is 5.5 billion times the mass of the Sun (M), while the star formation rate is ~0.5 M·yr−1.[6] As a result of star formation, the diffuse ionized gas in the galaxy has a complex organization, showing filaments, bubbles, and super-shells.[9]

Three transient ultraluminous X-ray sources have been detected in NGC 7090.[10][11]

References

  1. ^ a b "Hubble Sees NGC 7090 — An actively star-forming galaxy". Hubble Space Telescope. NASA. September 14, 2012. Retrieved 2022-01-09.
  2. ^ a b "NGC 7090 — An actively star-forming galaxy". ESA/Hubble Picture of the Week. Retrieved 24 September 2012.
  3. ^ a b Skrutskie, Michael F.; et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  4. ^ de Vaucouleurs, G.; et al. (1991), Third reference catalogue of bright galaxies, 9, New York: Springer-Verlag
  5. ^ Tully, R. Brent; et al. (August 3, 2016). "COSMICFLOWS-3". The Astronomical Journal. 152 (2): 50. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862.
  6. ^ a b c d Lianou, S.; et al. (November 2019). "Dust properties and star formation of approximately a thousand local galaxies". Astronomy & Astrophysics. 631: 19. arXiv:1906.02712. Bibcode:2019A&A...631A..38L. doi:10.1051/0004-6361/201834553. S2CID 174801441. A38.
  7. ^ a b "NGC 7090". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2022-01-09.
  8. ^ a b c d Heesen, Volker; et al. (May 2016). "Advective and diffusive cosmic ray transport in galactic haloes". Monthly Notices of the Royal Astronomical Society. 458 (1): 332–353. arXiv:1602.04085. Bibcode:2016MNRAS.458..332H. doi:10.1093/mnras/stw360.
  9. ^ Rossa, J.; et al. (September 2012). "The Morphological Diversity of DIG in Halos of Edge-on Spirals as Revealed by HST/ACS". In de Avillez, M.A. (ed.). The Role of the Disk-Halo Interaction in Galaxy Evolution: Outflow vs. Infall?. EAS Publication Series. Vol. 56. pp. 221–224. Bibcode:2012EAS....56..221R. doi:10.1051/eas/1256035.
  10. ^ Liu, Zhu; et al. (July 2019). "X-ray properties of two transient ULX candidates in galaxy NGC 7090". Monthly Notices of the Royal Astronomical Society. 486 (4): 5709–5715. arXiv:1904.13044. Bibcode:2019MNRAS.486.5709L. doi:10.1093/mnras/stz1194.
  11. ^ Walton, D. J.; et al. (February 2021). "A new transient ultraluminous X-ray source in NGC 7090". Monthly Notices of the Royal Astronomical Society. 501 (1): 1002–1012. arXiv:2011.08870. Bibcode:2021MNRAS.501.1002W. doi:10.1093/mnras/staa3666.
  • Media related to NGC 7090 at Wikimedia Commons



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