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Table B.1.

Summary on spectroscopic temperature group and light curves variation found for all newly confirmed Galactic and Magellanic RCB stars and of the new strong RCB stars candidates.

WISE All-Sky WISE-ToI Galactic coordinates
Temperature Spectroscopic Light curve, survey and
designation Id l (deg) b (deg) group instrument largest variations observed
New Galactic RCB stars

J110008.77-600303.6 76 289.45754 −0.12330 Cold 2.3 m/WiFeS
J132354.47-673720.8 90 306.02499 −4.94583 Cold 2.3 m/WiFeS
J150104.50-563325.1 105 320.12182 1.92522 Cold 2.3 m/WiFeS Bochum: 1.0 mag variation
J160205.48-552741.6 121 327.72638 −2.05059 Cold 2.3 m/WiFeS Bochum: 0.4 mag variation
J161156.23-575527.1 124 327.07187 −4.78229 Cold 2.3 m/WiFeS ASAS-SN: 2.5 mag drop (#)
J163450.35-380218.5 130 343.92434 6.46016 Cold 2.3 m/WiFeS
J164704.67-470817.8 139 338.56953 −1.23860 Warm 2.3 m/WiFeS Bochum: 3.0 mag variation
J170343.87-385126.6 148 346.92365 1.59123 Cold 2.3 m/WiFeS
J171815.36-341339.9 161 352.38354 1.97860 Cold 2.3 m/WiFeS
J171908.50-435044.6 1220 344.60551 −3.68706 Cold 2.3 m/WiFeS
J172447.52-290418.6 169 357.42448 3.75908 Warm 2.3 m/WiFeS
J172553.80-312421.1 171 355.62021 2.25628 Warm 2.3 m/WiFeS
J172951.80-101715.9 (r1) 174 14.05807 12.92716 Warm 2.3 m/WiFeS CRTS: no variation
J173202.75-432906.1 1222 346.20875 −5.42525 Cold 2.3 m/WiFeS
J173553.02-364104.3 177 352.34341 −2.37032 Cold 2.3 m/WiFeS
J173819.81-203632.1 1227 6.22662 5.78226 Cold 2.3 m/WiFeS
J174111.80-281955.3 No Id 0.00465 1.14323 Warm 2.3 m/WiFeS
J174119.57-250621.2 No Id 2.76109 2.82268 Warm 2.3 m/WiFeS
J174138.87-161546.4 182 10.37103 7.38144 Cold 2.3 m/WiFeS ASAS: 0.9 mag (oscillations?)
J174257.19-362052.1 184 353.38413 −3.39531 Cold 2.3 m/WiFeS OGLE: 8.0 mag (4 drops)
J174328.50-375029.0 186 352.16205 −4.26413 Cold 2.3 m/WiFeS OGLE: 4.0 mag (2 drops)
J174645.90-250314.1 (r2) 188 3.44972 1.80007 Warm 2.3 m/WiFeS OGLE: 8.0 mag (2 drops)
J174851.29-330617.0 190 356.79067 −2.75043 Warm 2.3 m/WiFeS
J175031.70-233945.7 191 5.08443 1.78184 Warm 2.3 m/WiFeS OGLE: 1.2 mag (1 small drop)
J175107.12-242357.3 193 4.52017 1.28935 Warm 2.3 m/WiFeS OGLE: no variation
J175521.75-281131.2 1241 1.73524 −1.45559 Cold SOAR/Goodman OGLE: 8.0 mag (5 drops)
J175558.51-164744.3 197 11.66355 4.15326 Warm 2.3 m/WiFeS
J175749.76-075314.9 203 19.68570 8.14974 Cold 2.3 m/WiFeS ASAS-SN: > 1.8 mag (M)
(1 drop)
J175749.98-182522.8 (r3) 204 10.47189 2.95757 Cold 2.3 m/WiFeS
J180550.49-151301.7 209 14.21051 2.86870 Warm 2.3 m/WiFeS ASAS: 1.0 mag variations
J181252.50-233304.4 2645 7.71430 −2.61157 Cold 2.3 m/WiFeS OGLE: 1.6 mag (2 drops)
ASAS-SN: > 1.5 mag (M)
(1 drop)
J181538.25-203845.7 220 10.57510 −1.78842 Cold 2.3 m/WiFeS Pan-STARRS: > 2.0 mag (M)
J182334.24-282957.1 1265 4.45107 −7.04796 Cold 2.3 m/WiFeS
J182723.38-200830.1 1269 12.31294 −3.98522 Cold 2.3 m/WiFeS
J182943.83-190246.2 231 13.54224 −3.97017 Cold 2.3 m/WiFeS Bochum: 3.0 mag (1 drop)

New Magellanic RCB stars

J183649.54-113420.7 240 20.97746 −2.05850 Cold 2.3 m/WiFeS Bochum: 5.0 mag (1 drop)
J184158.40-054819.2 249 26.68830 −0.54812 Cold 2.3 m/WiFeS Bochum: 0.3 mag
(1 small drop)
J184246.26-125414.7 250 20.45347 −3.95830 Cold 2.3 m/WiFeS
J185525.52-025145.7 257 30.83712 −2.19132 Warm 2.3 m/WiFeS Bochum: 0.2 mag and
ASAS-SN: 1.6 mag (##) (1 drop)
J194218.38-203247.5 290 19.48694 −20.08972 Cold 2.3 m/WiFeS CRTS: 8.0 mag (7 drops)
J005010.67−694357.7 (r4) 5003 303.09311 −47.39506 Warm 2.3 m/WiFeS OGLE: 6.0 mag (2 drops)
J005113.58−731036.3 (r5) 5004 302.95316 −43.95139 Cold 2.3 m/WiFeS OGLE: 7.0 mag (2 drops)
J053745.70−635330.8 6005 273.35887 −32.22225 Hot 2.3 m/WiFeS OGLE: 5.0 mag (3 drops)
J054123.49−705801.8 ( ⋆ ⋆) No Id 281.60571 −31.22409 Cold 2.3 m/WiFeS
J054221.91−690259.3 (r6) 5039 279.36499 −31.35237 Cold 2.3 m/WiFeS OGLE: 6.0 mag (9 drops)
AAT/AAOmega
J055643.56-715510.7 (r7) 5042 282.57199 −29.91933 Cold/Warm 2.3 m/WiFeS OGLE: no variation

New Galactic RCB candidates

J161311.79−503040.2 ( ⋆ ) No Id 332.29137 0.49038 n/a not observed Bochum: 3.0 mag (1 drop)
J164424.53−481205.1 136 337.46936 −1.58860 Cold 2.3 m/WiFeS
J164433.19−423032.2 137 341.79607 2.11155 Cold 2.3 m/WiFeS
J164440.88−421522.3 138 342.00320 2.25855 Cold 2.3 m/WiFeS
J170738.27−431019.7 150 343.92942 −1.60193 Cold 2.3 m/WiFeS
J172044.89−315031.7 164 354.64091 2.91539 Cold 2.3 m/WiFeS
J173837.00−281734.5 181 359.73602 1.64518 Cold 2.3 m/WiFeS Pan-STARRS: 5.9 mag (M)
(1 drop)
J175136.80−220630.6 194 6.54934 2.36043 Cold 2.3 m/WiFeS
J180313.12−251330.1 207 5.18282 −1.50019 Cold 2.3 m/WiFeS
J181316.97−253135.1 218 6.02007 −3.63537 Cold 2.3 m/WiFeS OGLE: 4.2 mag (1 drop)
EROS2: 2.5 mag (1 drop)
J182010.96−193453.4 223 12.01864 −2.22483 Cold 2.3 m/WiFeS
J182235.25−033213.2 225 26.47598 4.78381 Cold 2.3 m/WiFeS
J183631.25−205915.1(r8) 4117 12.53382 −6.27324 Cold 2.3 m/WiFeS ASAS: 1.5 mag (2 drops)
J190309.89−302037.1 264 6.44446 −15.64277 Cold 2.3 m/WiFeS
J191243.06+055313.1 274 40.59924 −2.02375 Cold 2.3 m/WiFeS

Notes. (#)Reported as a likely RCB star based on a brightness drop observed by the ASAS-SN survey (Jayasinghe et al. 2017) and being flagged in Tisserand (2012) due to its IR colours characteristic. (##)A decline of ∼1.6 mag at JD∼2458000 days was observed by the monitoring survey ASAS-SN (Jayasinghe et al. 2018). ( ⋆ )Named GDS_J1613117-503040 in the Bochum survey. ( ⋆ ⋆)Also known as KDM 5651 : previously known candidate RCB (Morgan et al. 2003) as reported by Stefan Hümmerich (light curve available on AAVSO variable star website). (r1)Also known as the variable star AC Ser. (r2)Listed as candidate RCB GLIMPSE-RCB-Cand-1 in Tisserand et al. (2011). (r3)Listed as candidate RCB GLIMPSE-RCB-Cand-2 in Tisserand et al. (2011). (r4)Also known as [MH95] 580, and Gaia 16aau, a Gaia Alert ATEL http://www.astronomerstelegram.org/?read=8681. (r5)Also known as RAW 658 in the SMC carbon stars catalogue from Rebeirot et al. (1993). (r6)Also known as MSX-LMC-1795 (Matsuura et al. 2014) and OGLE-LMC-RCB-21 (Soszyński et al. 2009). (r7)Also known as HV 12862 and KDM 6829. (r8)Also known as the variable star IZ Sgr. It was surprisingly classified as a Mira type star (M6 spectral type) by Houk (1967) after a spectroscopic follow-up. (M)Variations observed by Gabriel Murawski (priv. comm., 2019), light curves available on AAVSO variable star website.

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