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Table 6.

Spectroscopic analysis of new Cold RCB stars.

WISE WISE 2MASS Ca II IR 13C ? Strength C2 Hydrogen ? Emission Comments
ToI [12] K triplet ∼4744, features Hα, CH lines ? (Å)
(mag) (mag) strength ∼6168 Å 600–620 nm
New Cold RCB stars

76 3.55 8.32 Medium n/a, No Strong No, n/a
90 5.04 8.82 None n/a, No Strong No, No
105 4.41 9.46 Medium n/a, No Small No, n/a
121 4.10 8.54 Medium No, No Strong No, No
124 4.96 9.20 Medium No, No Strong No, No
130 2.22 8.04 Small n/a, No Small No, n/a
148 5.07 9.26 Small n/a, No Strong No, n/a
161 4.68 8.84 Small n/a, No Strong No, n/a
177 2.87 7.86 Medium No, No Strong No, n/a
182 3.22 7.44 Medium No, No Strong No, No
184 3.64 8.50 Small n/a, No Small No, n/a
186 4.46 8.65 Small No, No Strong No, No
203 4.76 8.37 Medium No, No Strong No, No
204 3.10 8.13 Small n/a, No Strong No, n/a
220 7.04 9.72 Medium No, No Strong No, n/a
231 5.34 9.72 Medium No, No Strong No, No
240 3.54 7.48 Small No, No Strong No, n/a
249 3.66 7.56 Strong No, No Strong No, No
250 3.68 8.67 Small No, No Strong No, n/a
290 4.81 8.86 Weak No, No Strong No, No
1220 2.86 8.26 Small n/a, No Strong No, n/a
1222 2.95 9.38 Medium n/a, No Strong No, n/a
1227 4.53 9.91 Medium No, No Strong No, n/a
1241 3.04 8.65 Small n/a, No Small No, n/a
1265 2.84 9.30 Small No, No Strong No, n/a
1269 2.93 9.45 Small No, No Strong No, n/a
2645 5.07 7.95 Medium n/a, No Weak No, n/a
5004 6.72 12.36 Small n/a, No Strong No, n/a
5039 6.41 13.54 Weak No, No Strong No, n/a [O III](4959 + 5007), Emission lines observed
Hα, β, δ, γ, [N II](6583), only on the AAOmega
[S II](6719 + 6730) spectrum
5042 8.65 12.26 Medium No, No Strong No, No Warm absorption lines
observed with some C2
features, but no CN
KDM 5651 8.96 12.75 Strong No, No Strong No, No

New Cold RCB candidates that need further monitoring

136 4.83 9.66 Weak n/a, n/a Small Em., n/a
137 4.66 9.54 Small n/a, n/a Weak Em., n/a [N II](6583)
138 4.76 9.67 Small n/a, n/a Weak No, n/a [N II](6583)
150 4.67 9.14 Small n/a, n/a Weak No, n/a
164 3.41 8.36 Small n/a, n/a Small No, n/a
181 2.99 8.73 Medium n/a, n/a Weak No, n/a
194 2.94 7.57 Small n/a, n/a No No, n/a Na I D
207 3.08 7.93 Small n/a, n/a n/a No, n/a
218 6.25 11.07 None n/a, n/a n/a No, n/a
223 1.25 7.27 Small n/a, No Strong Em., n/a Na I D
225 3.25 7.95 Weak n/a, n/a n/a No, n/a
264 5.88 10.90 Small n/a, n/a Weak No, n/a Na I D
274 1.03 6.33 Small n/a, n/a n/a Em., n/a 2.3 m/WiFeS featureless
spectrum
4117 2.33 7.64 None n/a, n/a Weak No, n/a Na I D

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