GCN Circular 21539

Sheng Yang (INAF-OAPd, UC Davis), Stefano Valenti(UC Davis), David Sand (UA), Leonardo Tartaglia (UA, UC Davis), Enrico Cappellaro(INAF-OAPd), Dan Reichart, Josh Haislip (UNC) report on behalf of the Gravitational Wave Follow-Up by DLT40.

We report the observation of 20 galaxies within the LVC error region for the GW trigger G298048 using the LIGO bayestar HLV localization map. We selected galaxies from the GWGC catalogue within 99.0% of the trigger error region, within a distance of 40.0 Mpc, brighter than -17.5 mag and at a Declination < 20 degree.
Those selected galaxies have been observed using the Prompt 5 telescope and they are part of the ongoing DLT40 search. The DLT40 search limit magnitude, for those galaxies is 19.2 (open filter scaled to r band). 

Below follow the list of galaxies observed:
Name RA(J2000) DEC(J2000) Dist(Mpc) BMAG KMAG
NGC4594 189.9976 -11.623 9.77 -21.43 -24.9875
NGC5078 199.9585 -27.41 27.67 -21.24 -25.087
NGC5061 199.5213 -26.8371 24.21 -20.82 -24.631
NGC5101 200.4424 -27.4304 24.21 -20.68 -24.764
IC4197 197.0178 -23.7969 34.1 -20.24 -23.3868
NGC4993 197.4487 -23.3839 33.81 -20.2 -23.4212
NGC5188 202.8678 -34.7944 28.84 -20.2 -23.782
ESO508-024 197.6914 -23.8656 33.42 -19.98 -21.591
IC4180 196.7353 -23.917 33.65 -19.98 -23.0379
NGC5161 202.308 -33.1738 18.53 -19.84 -22.7064
NGC4968 196.7742 -23.6769 33.42 -19.44 -23.139
ESO508-019 197.4655 -24.2394 38.55 -19.33 -21.1601
IC0874 199.7521 -27.6287 29.06 -19.29 -22.6395
ESO508-003 196.6 -24.1641 33.43 -19.2 -21.2257
ESO576-001 197.599 -21.6841 35.47 -19.18 -21.9983
NGC4680 191.7282 -11.6367 29.92 -19.12 -22.6058
ESO576-003 197.6485 -21.7482 28.44 -18.94 -20.6476
ESO508-015 197.3286 -24.3846 33.42 -18.77 -18.785
NGC5042 198.8794 -23.9835 12.65 -18.7 -21.1145
ESO575-053 196.2705 -22.3839 30.48 -18.44 -21.3091