Astronomy:Nova Carinae 2018

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Nova Carinae 2018
Observation data
Equinox J2000.0]] (ICRS)
Constellation Carina
Right ascension  10h 36m 13.71s
Declination −59° 35′ 55.1″
Apparent magnitude (V) brighter than magnitude 10 V
Other designations
ASASSN-18fv, Nova Car 2018

Nova Carinae 2018 is a nova in the Milky Way galaxy,[1] discovered on March 20, 2018 by the All Sky Automated Survey for SuperNovae.[2] Also known by its discovery designation of ASASSN-18fv,[3] it is located in the constellation Carina, near the 5th magnitude star HD 92063.[4]

Pre-discovery images were matched to a star of Gaia magnitude 20.1. On March 21, it had brightened to a Gaia magnitude 7.80 (visual magnitude 7.45),[4] and to magnitude 6.62 later the same day.[5]

Observation

On March 21, 2018 long exposure spectrographic measurements of ASASSN-18fv, specifically in the 3800Å to 7300Å range, were captured using CCD imaging. Detailed analysis of the spectral data confirmed that ASASSN-18fv exhibited characteristics of an impending classical nova.[6] Its photometry was taken at Hutton-Westfold Observatory at Monash University in Melbourne, Australia.[5] A spectrum of ASASSN-18fv was obtained via the Las Campanas Observatory in La Serena, Chile.[4]

References

  1. ↑ Ryder, S. D.; Kool, E. C.; Chomiuk, L. (2018-04-05). Radio Observations of Nova Muscae 2018 and Nova Carinae 2018 (ASASSN-18fv). The Astronomer's Telegram. Bibcode: 2018ATel11504....1R. http://www.astronomerstelegram.org/?read=11504. 
  2. ↑ "Alert Notice 626: Bright nova in Carina - ASASSN-18fv". American Association of Variable Star Observers. March 21, 2018. https://www.aavso.org/aavso-alert-notice-626. 
  3. ↑ K. Z. Stanek; T. W.-S. Holoien; C. S. Kochanek; J. V. Shields; T. A. Thompson; L. Chomiuk; J. Strader; B. J. Shappee et al. (2018-03-21). ASAS-SN Discovery of a Possible, Very Bright Galactic Nova ASASSN-18fv. The Astronomer's Telegram. Bibcode: 2018ATel11454....1S. http://www.astronomerstelegram.org/?read=11454. 
  4. ↑ 4.0 4.1 4.2 Strader, Jay (March 21, 2018). Spectroscopy of the new bright Galactic transient ASASSN-18fv: A 12 mag outburst from a young stellar object?. The Astronomer's Telegram. Bibcode: 2018ATel11456....1S. http://www.astronomerstelegram.org/?read=11456. 
  5. ↑ 5.0 5.1 Brown, Michael (March 21, 2018). Photometry and brightening of Galactic transient ASASSN-18fv. The Astronomer's Telegram. Bibcode: 2018ATel11457....1B. http://www.astronomerstelegram.org/?read=11457. 
  6. ↑ Luckas, Paul (March 21, 2018). Spectroscopic Observations of ASASSN-18fv as a Classical Nova in the Iron Curtain Phase. The Astronomer's Telegram. Bibcode: 2018ATel11460....1L. http://www.astronomerstelegram.org/?read=11460. 

External Links




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