V373 Scuti

V373 Scuti
Location of V373 Scuti (circled in red)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Scutum
Right ascension 18h 55m 26.71s[1]
Declination −07° 43′ 05.5″[1]
Apparent magnitude (V) 7.1[2] (Max) – 18.7[3]
Details
Mass1.02[4] M☉
Rotation258.3 s[5]
Other designations
V373 Sct, AAVSO 1850-07, NOVA Sct 1975[6]
Database references
SIMBADdata

V373 Scuti was a nova which appeared in 1975 in the southern constellation of Scutum.[3] It was announced on June 15, 1975 by Paul Wild at the Zimmerwald Observatory, Switzerland.[7] At the time the magnitude was about 7.9.[8] The peak magnitude of 7.1 occurred a month earlier on May 11.[2]

A visual band light curve for V373 Scuti. The main plot shows the decline from the nova event. Purple points are from Rosino (1978)[8] and blue points are AAVSO data.[9] The inset plot, adapted from Woudt and Warner (2003),[5] shows short timescale variations continuing long after the nova event.

The light curve of this nova declined as a typical power law following the peak, but showed significant jittery behavior.[10] After about 40–50 days emission lines began to appear in the spectrum, which allowed measurement of the mean expansion velocity as 955±130 km/s.[8] The large amplitude flickering as well as other indicators suggest a magnetic influence, making this a candidate intermediate polar system. A luminosity modulation of 258.3 seconds is most likely due to rotation of the white dwarf.[5] The system has an orbital period of 3.69 ± 0.07 h,[3] and the light curve suggests a high orbital inclination.[5]

  1. ^ a b Cite error: The named reference Downes_et_al_2001 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Duerbeck1987 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Tappert_et_al_2013 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Shara_et_al_2018 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Woudt_Warner_2003 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Wild1975 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Rosino1978 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference aavso was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Strope_et_al_2010 was invoked but never defined (see the help page).