TITLE:   GCN CIRCULAR
NUMBER:  20876
SUBJECT: LIGO/Virgo G275697: DLT40 follow-up observation
DATE:    17/03/15 21:34:51 GMT
FROM:    Sheng Yang at UC Davis  <sngyang@ucdavis.edu>

Sheng Yang (INAF-OAPd, UC Davis), Stefano Valenti(UC Davis), David Sand (TTU), Leonardo Tartaglia (TTU, 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 59 galaxies within the LVC error region for the GW trigger G275697 using the 'bayestar' GW localization map from 2017-2-27 to 2017-3-7 and the observation of 114 galaxies from 2017-3-7 to 2017-3-12 after the update of LALInference localization map. We selected galaxies from the GWGC catalogue within 80.0% of the trigger error region, within a distance of 40.0 Mpc, brighter than -17.5 mag and at a Declination < 20 degree and those galaxies selected have been observed using the Prompt 5 telescope and are part of the ongoing DLT40 search. The first 59 galaxies represent the 4.3% of all galaxies within 40.0 Mpc in the Glade catalogue within the LVC error region for the GW trigger and contains 13.1% of all B band luminosity of those galaxies. After updating our observing schedule, the 114 galaxies represent the 7.4% of all galaxies and contains 27.5% of all B band luminosity. No interesting transients have been identified down to a limit magnitude of 19.0.

Below follow the list of galaxies observed:
Name RA(J2000) DEC(J2000) Dist(Mpc) BMAG KMAG OBS_WINDOW(JD)
ESO176-006 224.29 -54.39 38.01 -21.5 -24.4 2457812.34-2457825.39
NGC4696 192.20 -41.31 35.48 -21.4 -25.6 2457812.34-2457825.39
NGC4603 190.23 -40.97 33.11 -21.2 -24.2 2457812.34-2457825.39
NGC5266 205.75 -48.16 38.02 -21.1 -25.4 2457820.41-2457825.39
NGC3706 172.43 -36.39 38.02 -21.0 -24.9 2457820.41-2457825.39
NGC5156 202.18 -48.91 36.98 -20.9 -24.1 2457820.41-2457825.39
ESO320-026 177.45 -38.78 38.02 -20.9 -24.2 2457820.41-2457825.39
NGC4976 197.15 -49.50 17.3 -20.9 -24.3 2457820.41-2457825.39
IC2977 178.81 -37.69 39.01 -20.8 -23.8 2457820.41-2457825.39
NGC3749 173.97 -37.99 38.02 -20.8 -24.1 2457820.41-2457825.39
NGC3585 168.32 -26.75 20.05 -20.7 -24.8 2457812.34-2457825.39
NGC5266A 205.15 -48.34 38.02 -20.7 -22.2 2457820.41-2457825.39
NGC4444 187.15 -43.26 36.98 -20.6 -23.4 2457820.41-2457825.39
NGC4373A 186.40 -39.31 37.33 -20.6 -24.0 2457812.34-2457825.39
ESO269-057 197.51 -46.43 36.98 -20.6 -24.0 2457820.41-2457825.39
PGC054411 228.64 -52.98 19.36 -20.6 -24.2 2457812.34-2457825.39
NGC3742 173.88 -37.95 38.61 -20.5 -24.2 2457820.41-2457825.39
NGC4112 181.78 -40.20 34.67 -20.5 -23.4 2457820.41-2457825.39
ESO437-030 159.81 -30.29 39.81 -20.5 -23.6 2457812.34-2457825.39
ESO221-010 207.73 -49.05 38.02 -20.5 -23.6 2457820.41-2457825.39
NGC4219 184.11 -43.32 20.99 -20.5 -23.5 2457820.41-2457825.39
IC3896 194.18 -50.34 27.67 -20.5 -24.4 2457820.41-2457825.39
NGC3783 174.75 -37.73 38.02 -20.5 -24.2 2457820.41-2457825.39
ESO320-031 178.52 -39.86 38.18 -20.4 -24.8 2457820.41-2457825.39
NGC5219 204.67 -45.85 36.98 -20.4 -22.8 2457812.34-2457825.39
NGC2992 146.42 -14.32 28.84 -20.3 -23.7 2457812.34-2457825.39
NGC3533 166.78 -37.17 36.88 -20.3 -23.5 2457812.34-2457825.39
ESO175-005 214.44 -52.83 37.36 -20.3 -20.2 2457820.41-2457825.39
IC3370 186.90 -39.33 26.79 -20.3 -24.2 2457812.34-2457825.39
ESO377-010 166.63 -37.65 36.98 -20.3 -23.8 2457812.34-2457825.39
PGC046029 198.58 -46.12 36.98 -20.3 -24.3 2457820.41-2457825.39
ESO321-025 185.42 -39.76 29.38 -20.3 -22.5 2457812.34-2457825.39
ESO221-014 208.02 -48.17 35.81 -20.2 -23.1 2457820.41-2457825.39
ESO221-025 211.89 -48.39 38.93 -20.2 -19.4 2457812.34-2457825.39
ESO320-030 178.29 -39.13 38.02 -20.2 -23.6 2457820.41-2457825.39
NGC2967 145.51 0.3365 29.92 -20.2 -23.4 2457820.41-2457825.39
ESO377-024 168.13 -36.42 38.21 -20.2 -22.9 2457820.41-2457825.39
NGC4835 194.53 -46.26 20.14 -20.2 -23.3 2457820.41-2457825.39
NGC2775 137.58 7.0379 17.3 -20.1 -24.1 2457812.34-2457825.39
ESO437-014 159.22 -32.34 37.33 -20.1 -23.6 2457812.34-2457825.39
ESO221-020 209.59 -48.47 38.29 -20.1 -23.6 2457820.41-2457825.39
ESO321-016 183.86 -38.14 38.02 -20.1 -21.9 2457812.34-2457825.39
ESO221-026 212.09 -47.97 20.31 -20.1 -23.9 2457812.34-2457825.39
NGC3115 151.30 -7.718 10.33 -20.1 -24.1 2457820.41-2457825.39
ESO221-012 207.88 -48.08 38.02 -20.1 -21.9 2457820.41-2457825.39
NGC3564 167.65 -37.54 36.98 -20.0 -23.8 2457812.34-2457825.39
NGC4645 191.04 -41.74 29.92 -20.0 -23.9 2457812.34-2457825.39
ESO321-021 185.06 -40.39 39.65 -20.0 -22.6 2457820.41-2457825.39
PGC028308 147.55 -12.05 38.02 -20.0 -22.5 2457812.34-2457825.39
NGC3557B 167.38 -37.34 36.98 -20.0 -23.7 2457812.34-2457825.39
PGC049119 207.61 -48.27 38.02 -20.0 -22.4 2457820.41-2457825.39
PGC027810 145.82 -9.945 38.39 -20.0 -22.2 2457812.34-2457825.39
ESO322-027 188.67 -40.30 39.54 -20.0 -23.2 2457812.34-2457825.39
NGC3606 169.06 -33.82 37.68 -20.0 -23.4 2457820.41-2457825.39
NGC2974 145.63 -3.698 21.48 -20.0 -25.4 2457820.41-2457825.39
IC3896A 193.87 -50.07 27.67 -20.0 -20.3 2457820.41-2457825.39
NGC3203 154.89 -26.69 32.36 -19.9 -23.6 2457812.34-2457825.39
ESO322-045 190.00 -42.04 38.93 -19.9 -23.0 2457812.34-2457825.39
ESO269-090 200.21 -47.21 37.03 -19.9 -23.3 2457820.41-2457825.39
ESO270-006 200.49 -45.93 36.98 -19.9 -22.5 2457812.34-2457825.39
NGC3717 172.88 -30.30 16.9 -19.9 -23.6 2457812.34-2457825.39
ESO320-027 177.60 -38.64 37.64 -19.9 -20.4 2457820.41-2457825.39
ESO378-020 176.81 -37.54 39.46 -19.9 -23.4 2457820.41-2457825.39
NGC3903 177.26 -37.51 38.02 -19.8 -22.6 2457820.41-2457825.39
ESO221-032 213.03 -49.38 36.98 -19.8 -23.8 2457820.41-2457825.39
NGC3573 167.82 -36.87 37.18 -19.8 -24.0 2457820.41-2457825.39
NGC4575 189.46 -40.53 29.11 -19.8 -22.9 2457812.34-2457825.39
ESO321-018 183.97 -38.09 38.65 -19.7 -19.5 2457812.34-2457825.39
ESO321-019 184.26 -39.05 37.64 -19.7 -22.8 2457812.34-2457825.39
ESO220-023 204.32 -49.74 38.02 -19.7 -23.2 2457820.41-2457825.39
ESO321-005 181.44 -38.85 36.46 -19.7 -22.1 2457820.41-2457825.39
ESO377-029 168.66 -33.90 38.56 -19.7 -23.4 2457820.41-2457825.39
PGC166343 219.26 -54.04 38.04 -19.7 -21.2 2457812.34-2457825.39
IC2580 157.07 -31.51 36.98 -19.7 -22.7 2457812.34-2457825.39
ESO219-022 195.59 -49.47 23.56 -19.6 -21.9 2457820.41-2457825.39
ESO319-016 170.53 -38.06 38.22 -19.6 -20.9 2457820.41-2457825.39
NGC4751 193.21 -42.66 26.19 -19.6 -23.8 2457812.34-2457825.39
ESO376-009 160.50 -33.24 38.78 -19.6 -23.4 2457812.34-2457825.39
ESO321-010 182.92 -38.54 38.02 -19.6 -22.7 2457812.34-2457825.39
NGC3511 165.84 -23.08 12.25 -19.6 -22.3 2457812.34-2457825.39
NGC4573 189.43 -43.62 37.42 -19.6 -23.2 2457820.41-2457825.39
NGC3208 154.92 -25.81 36.98 -19.6 -23.4 2457812.34-2457825.39
IC2627 167.47 -23.72 24.21 -19.6 -22.9 2457812.34-2457825.39
ESO322-042 189.67 -42.21 34.83 -19.6 -21.4 2457812.34-2457825.39
NGC4603C 190.17 -40.76 38.83 -19.6 -23.1 2457812.34-2457825.39
ESO175-009 217.99 -55.46 39.26 -19.6 -24.0 2457812.34-2457825.39
PGC166337 216.64 -52.73 38.39 -19.5 -22.2 2457820.41-2457825.39
ESO320-024 177.35 -38.82 38.89 -19.5 -21.8 2457820.41-2457825.39
NGC2979 145.78 -10.38 38.02 -19.5 -23.3 2457812.34-2457825.39
ESO378-012 174.26 -36.81 37.94 -19.5 -22.6 2457820.41-2457825.39
ESO221-003 207.44 -48.75 38.02 -19.4 -21.9 2457820.41-2457825.39
NGC2993 146.45 -14.36 28.84 -19.4 -22.1 2457812.34-2457825.39
ESO269-085 199.99 -47.28 28.31 -19.4 -23.2 2457820.41-2457825.39
ESO320-004 173.68 -38.25 38.02 -19.4 -21.3 2457820.41-2457825.39
ESO377-021 167.73 -35.98 32.81 -19.4 -22.1 2457820.41-2457825.39
NGC4603A 189.90 -40.73 30.34 -19.4 -22.3 2457812.34-2457825.39
ESO220-009 201.72 -48.16 37.46 -19.4 -22.6 2457820.41-2457825.39
ESO377-019 167.68 -35.35 37.4 -19.4 -21.7 2457820.41-2457825.39
ESO222-015 221.11 -49.40 29.92 -19.4 -18.9 2457812.34-2457825.39
ESO220-026 204.94 -48.29 38.75 -19.4 -19.7 2457820.41-2457825.39
ESO221-004 207.46 -48.57 37.96 -19.4 -19.6 2457820.41-2457825.39
ESO437-033 159.99 -30.19 36.98 -19.3 -22.9 2457812.34-2457825.39
NGC3175 153.67 -28.87 13.87 -19.3 -22.9 2457812.34-2457825.39
ESO322-020 187.30 -40.69 39.58 -19.3 -20.4 2457812.34-2457825.39
ESO438-005 167.24 -28.37 26.18 -19.3 -19.6 2457820.41-2457825.39
NGC2947 144.02 -12.43 39.88 -19.3 -23.0 2457812.34-2457825.39
ESO268-027 189.62 -42.86 38.42 -19.3 -22.4 2457820.41-2457825.39
ESO267-016 181.59 -44.44 39.26 -19.3 -22.3 2457820.41-2457825.39
ESO268-044 192.17 -45.00 37.67 -19.3 -22.2 2457820.41-2457825.39
ESO569-014 162.85 -19.89 24.77 -19.3 -20.9 2457812.34-2457825.39
ESO221-022 210.04 -48.26 34.2 -19.3 -22.5 2457812.34-2457825.39
NGC5333 208.60 -48.51 35.81 -19.2 -24.4 2457812.34-2457825.39
ESO269-060 197.74 -46.22 36.98 -19.2 -22.7 2457812.34-2457825.39
ESO269-078 199.15 -45.89 37.86 -19.2 -20.2 2457812.34-2457825.39