Fermi/LAT Detected Novae

This is my attempt to put together a definitive list of novae detected with Fermi/LAT.

Definitive Detections

These are the novae that have been detected with TS=25/5-sigma, according to at least one report, for any time periods.

  1. V407 Cyg
  2. V1324 Sco
  3. V959 Mon
    • ~5 sigma [(1.0+/-0.4)x10-6 ph cm-2s-1 to (1.5+/-0.5)x10-6 ph cm-2s-1] on three consecutive days (2012-06-22 through 2012-06-24) (ATel 4224)
    • TS=193.7 [(2.64+/-0.45)x10-7 ph cm-2s-1] over 22 days (Table 1 of Franckowiak et al. 2018)
    • TS=195.0 [(5.2+/-0.5)x10-7 ph cm-2s-1] over 15 days (Table A1 of Franckowiak et al. 2018)
  4. V339 Del
  5. V1369 Cen
    • ~4 sigma [(2.1+/-0.6)x10-7 ph cm-2s-1] averaged over 2013-12-07 through 2013-12-10 (ATel 5649)
    • TS=129.3 [(2.51+/-0.52)x10-7 ph cm-2s-1] over 39 days (Table 1 of Franckowiak et al. 2018)
    • TS=94.2 [(2.1+/-0.3)x10-7 ph cm-2s-1] over 15 days (Table A1 of Franckowiak et al. 2018)
  6. V5668 Sgr
    • 3.8 sigma [(1.4+/-0.6)x10-7 ph cm-2s-1] averaged over 2015-03-23.0 through 2015-03-24.24 (ATel 7287)
    • TS=87.5 [(0.61+/-0.13)x10-7 ph cm-2s-1] over 55 days (Table 1 of Franckowiak et al. 2018)
    • TS=61.7 [(0.85+/-0.14)x10-7 ph cm-2s-1] over 15 days (Table A1 of Franckowiak et al. 2018)
  7. V5855 Sgr
    • TS=46 [(2.6+/-0.7)x10-7 ph cm-2s-1] for data between 2016-10-28 and 2016-11-01 (ATel 9699)
    • TS=94 [(2.96+/-0.79)x10-7 ph cm-2s-1] for data between 2016-10-27 and 2016-11-04 (Nelson et al. 2019)
  8. V5856 Sgr
    • TS=161 [(9.7+/-1.8)x10-7 ph cm-2s-1] on 2016-11-08 (ATel 9736)
    • TS>10 daily (TS=5 on 2016-11-17) [(6.1+/-0.5)x10-7 ph cm-2s-1] from 2016-11-08 to 2016-11-17 (ATel 9771)
    • TS=644 [(5.4+/-0.5)x10-7 ph cm-2s-1] from 2016-11-08 to 2016-11-17 Li et al. 2017
  9. V549 Vel
    • TS=36 [(8.0+/-3.5)x10-8 ph cm-2s-1] averaged over 2017-10-24 through 2017-11-13 (ATel 10977)
  10. V357 Mus
    • TS=65 [2.4x10-7 ph cm-2s-1] averaged over 2018-01-11 through 2018-01-18 (ATel 11201)
  11. V906 Car
    • "Strong" - [2x10-6 ph cm-2s-1] averaged over 2018-04-14 through 2018-04-18, peaking at (3.6+/-0.3)x10-6 ph cm-2s-1 on 2018-04-14 (ATel 11546)
    • TS=3649 [(1.04+/-0.04)x10-6 ph cm-2s-1] over 2018-04-08 and 2018-04-30 (Aydi et al. 2020)
  12. V392 Per
    • TS=40 [(8.9+/-2.9)x10-7 ph cm-2s-1] on 2018-04-30 (ATel 11590)
  13. V3890 Sgr
    • >5 sigma averaged over 2019-08-23 to 2019-09-13; >4 sigma [(1.2+/-0.4)x10-7 ph cm-2s-1] over 2019-08-26 through 2019-08-29 (ATel 13114)
  14. V1707 Sco
    • TS=36 [(2.3+/-1.0)x10-7 ph cm-2s-1] averaged over 2019-09-14 through 2019-09-18 (ATel 13116)
  15. YZ Ret
    • TS=467 [Daily detection at TS=22, 2.0+/-0.8x10-7 ph cm-2s-1, on 2020-07-10, non-detection on 2020-07-11, then daily flux of 5-7x10-7 ph cm-2s-1 (daily TS>78) during 2020-07-12 through 2020-07-15] (ATel 13868)
  16. V1674 Her
    • TS=31.6 [5.6-sigma, F(0.1-300GeV)= 9.6+/-2.7x10-7 ph cm-2s-1 with photon index=2.6+/-0.3] during 2021-06-12 00:00:00 to 2021-06-13 13:18:02 (ATel 14704)
  17. RS Oph
    • Initial detection at ~6 sigma, F(>0.1 GeV)= 2.4+/-0.8x10-6 ph cm-2s-1 with photon index=2.3+/-0.3 during 2021-08-08 18:00:00 to 24:00:00 (ATel 14834), up to 5.7+/-0.8x10-6 ph cm-2s-1 during 2021-08-09 18:00-2021-08-10 01:44 UT with photon index=1.9+/-0.1 (ATel 14845). First detection (2.1+/-0.7) during 2021-08-08 20:00-21:00, non-detection (<1.1) during 2021-08-08 16:30-18:00.
  18. V1716 Sco
    • Initial detection at >5 sigma, F(>0.1 GeV)= 6.5+/-1.2x10-7 ph cm-2s-1 with photon index=1.9+/-0.2 during 2023-04-21 00:00:00 to 24:00:00 (ATel 16002)
  19. V1723 Sco
    • Very significant (>5 sigma) detection [1.9+/-0.5x10-6 photons cm-2s-1] between 2024 Feb 11.0-12.0 UT (ATel 16441). Original detection at TS=21 [~(2.8+/-1.2)x10-6 ph cm-2s-1] between 2024 Feb 9.50 and 9.75 UT (ATel 16439).

Possible Detections

These are additional novae that have been detected at lower significance levels.

  1. V679 Car
  2. V745 Sco
  3. V1535 Sco
  4. V407 Lup
    • 4.4 sigma [~(1.8+/-0.6)x10-7 ph cm-2s-1] over 3.2 days beginning on 2016-09-26; over the subsequent 4.8 days, it was not significantly detected [<0.6x10-7 ph cm-2s-1] (ATel 9594)
  5. V1405 Cas
    • 4.1 sigma [~(1.4+/-0.8)x10-7 ph cm-2s-1] during 2021-05-02 15:01:17 to 2021-05-24 15:01:17 (ATel 14658)
  6. V6598 Sgr
    • ~4 sigma [~(1.9+/-1.2)x10-7 ph cm-2s-1] on 2023-07-15 and 2023-07-16 (ATel 16151)

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