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    NGC 2525

    Topic: Astronomy

     From Handwiki - Reading time: 5 min
    NGC 2525
    File:NGC2525 - HST - Heic2018b.tif
    NGC 2525 imaged by the Hubble Space Telescope
    Observation data (J2000 epoch)
    ConstellationPuppis
    Right ascension 08h 05m 38.0503s[1]
    Declination−11° 25′ 37.213″[1]
    Redshift0.005270 ± 0.000005 [1]
    Helio radial velocity1,580 ± 1 km/s[1]
    Distance71 Mly (21.9 Mpc)[2]
    Apparent magnitude (V)11.6 [3]
    Characteristics
    TypeSB(s)c [1]
    Size~46,200 ly (14.16 kpc) (estimated)[1]
    Apparent size (V)2.9′ × 1.9′[1]
    Other designations
    IRAS 08032-1117, MCG-02-21-004, PGC 22721[1]

    NGC 2525 is a barred spiral galaxy located in the constellation Puppis. It is located at a distance of about 70 million light years from Earth, which, given its apparent dimensions, means that NGC 2525 is about 46,000 light years across. It was discovered by William Herschel on February 23, 1791.[4][5]

    The galaxy has a bar and two main spiral arms with high surface brightness. HII regions are observed in the arms. The brightest stars of the galaxy have apparent magnitude around 22. Its nucleus is small and bright.[6] In the centre of the galaxy is predicted to lie a supermassive black hole whose mass is estimated to be between 1.1 and 44 million solar masses, based on the spiral arm pitch angle.[7][8]

    SN 2018gv

    Light curve for SN 2018gv

    One supernova has been observed in NGC 2525, SN 2018gv. It was discovered on by Kōichi Itagaki on 15 January 2018 at magnitude 16.5,[9] and it was identified spectrographically as a Type Ia supernova 10 to 15 days before maximum.[10] The supernova was also observed by ATLAS on 2018 January 14.5 UT at magnitude 18.1.[11] It reached a peak magnitude of 12.8. ESA/Hubble released a video of the supernova in October 2020.[12][13]

    See also

    References

    1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NASA/IPAC Extragalactic Database". Results for NGC 2525. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+2525. 
    2. ↑ Theureau, G.; Hanski, M. O.; Coudreau, N.; Hallet, N.; Martin, J.-M. (19 December 2006). "Kinematics of the Local Universe". Astronomy & Astrophysics 465 (1): 71–85. doi:10.1051/0004-6361:20066187. Bibcode: 2007A&A...465...71T. 
    3. ↑ "Revised NGC Data for NGC 2525". http://spider.seds.org/ngc/revngcic.cgi?NGC2525. 
    4. ↑ Herschel, W. (1802). "Catalogue of 500 New Nebulae, Nebulous Stars, Planetary Nebulae, and Clusters of Stars; with Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London 92: 477–528. doi:10.1098/rstl.1802.0021. Bibcode: 1802RSPT...92..477H. 
    5. ↑ Seligman, Courtney. "NGC 2525". https://cseligman.com/text/atlas/ngc25.htm#2525. 
    6. ↑ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
    7. ↑ Davis, Benjamin L.; Berrier, Joel C.; Johns, Lucas; Shields, Douglas W.; Hartley, Matthew T.; Kennefick, Daniel; Kennefick, Julia; Seigar, Marc S. et al. (20 June 2014). "The black hole mass function derived from local spiral galaxies". The Astrophysical Journal 789 (2): 124. doi:10.1088/0004-637X/789/2/124. Bibcode: 2014ApJ...789..124D. 
    8. ↑ Treuthardt, Patrick; Seigar, Marc S.; Sierra, Amber D.; Al-Baidhany, Ismaeel; Salo, Heikki; Kennefick, Daniel; Kennefick, Julia; Lacy, Claud H. S. (11 July 2012). "On the link between central black holes, bar dynamics and dark matter haloes in spiral galaxies". Monthly Notices of the Royal Astronomical Society 423 (4): 3118–3133. doi:10.1111/j.1365-2966.2012.21118.x. Bibcode: 2012MNRAS.423.3118T. 
    9. ↑ "SN 2018gv". IAU. https://www.wis-tns.org/object/2018gv. 
    10. ↑ Siebert, M. R.; Dimitriadis, G.; Foley, R. J. (2018). "Spectroscopic Classification of SN 2018gv with Keck I/LRIS". The Astronomer's Telegram 11175: 1. Bibcode: 2018ATel11175....1S. http://www.astronomerstelegram.org/?read=11175. 
    11. ↑ Bufano, F.; Berton, M.; Vogl, C.; Floers, A.; Taubenberger, S.; Anderson, J.; Galbany, L.; Schulze, S. et al. (2018). "EPESSTO spectroscopic classification of optical transients: SN2018gv a very young SN Ia". The Astronomer's Telegram 11177: 1. Bibcode: 2018ATel11177....1B. https://www.astronomerstelegram.org/?read=11177. 
    12. ↑ (in en) Time-Lapse of Supernova in NGC 2525, https://www.spacetelescope.org/videos/heic2018a/, retrieved 2021-11-05 
    13. ↑ NASA, ESA, J. DePasquale (STScI), M. Kornmesser and M. Zamani (ESA/Hubble), A. Riess (STScI/JHU) and the SH0ES team, and the Digitized Sky Survey (6 October 2020). "Check out this exploding supernova captured by the Hubble telescope". https://www.bbc.co.uk/newsround/av/54416190. "Supernova SN 2018gv" 



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