Table 5
Summary of variable sources.
| Target name | Band | Variable/constant | References | Notes |
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| New variables from this study with no prior observations | ||||
|
|
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| 2MASS J00501994-3322402 | Js | V | ||
| 2MASS J01062285-5933185 | Js | V | ||
| 2MASS J03582255-4116060 | Js | V | ||
| 2MASS J09310955+0327331 | J s | V | Candidate variable (p-val = 6.1%) | |
| 2MASS J10101480-0406499 | J s | V | ||
| 2MASS J12074717+0244249 | J s | V | ||
| 2MASS J22551861-5713056 | J s | V | ||
|
|
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| New variables previously categorised as constant | ||||
|
|
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| DENIS J0205.4-1159 | I c | C | K13 | |
| Candidate Variable (p-val= 7.9%) | K s | C | E03 | <3% |
| 8.46 GHz | C | B06 | < 30 μJy | |
| 2MASS J03480772-6022270 | J | C | C08 | <10 mmag, periodic |
| 2MASS J04390101-2353083 | I c | C | K13 | |
| I c | C | K05 | ||
| 8.46 GHz | C | B06 | <42μJy | |
| 2MASS J11263991-5003550 | I c | C | K13 | possibly periodic |
|
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| Literature variables confirmed as variable in this study | ||||
|
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| SIMP J013656.5+093347.3 | JK | V | A09, Ap13 | ΔJ = 4.5%, P = 2.39 ± 0.05 hr |
| 2MASS J08354256-0819237 | I c | V | K04, K13 | ΔIc = 10 − 16 mmag, P = 3.1 hr |
| 8.46 GHz | C | B06 | <30 μJy | |
| 2MASS J12171110-0311131 | J | V | A03 | ΔJ = 0.176 ± 0.013 mag |
| Candidate Variable (p-val= 9.3%) | 8.46 GHz | C | B06 | <111 μJy |
| Z06 | ||||
| 2MASS J13004255+1912354 | I c | C | K13 | |
| I | V | G02 | P = 238 ± 9 hr | |
| 8.46 GHz | C | B06 | <87μJy | |
| J + K’ | C | Kh13 | J< 1.1%, K′< 1.7% | |
| I c | C | K05 | ||
| JH K s | C | KMM04 | ||
| 2MASS J21392676+0220226 | JH K s | V | R12, Ap13 | Δ(J, H, K) = (0.3, 0.18, 0.17) mag, P = 7.721 ± 0.005 hr |
| J + K’ | V | Kh13 | ΔJ = 6.7%, C at K’ <8% | |
| 2MASS J22282889-4310262 | J | V | C08, Bu12 | ΔJ = 15.4 ± 1.4 mmag, P = 1.43 ± 0.16 hr |
| 8.46 GHz | C | B06 | <30 μJy | |
|
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| Objects with reported IR variability measured as constants in this study | ||||
|
|
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| SDSS J042348.56-041403.5 | I c | C | K13 | |
| K s | likely V | E03 | 0.3 ± 0.18 mag, P = 1.39 – 1.62 hr | |
| J | V | C08 | 8.0 ± 0.8 mmag, P= 2 ± 0.4hr | |
| JH K s | C | KTTK05 | J<15 mmag, H< 11 mmag, K< 2 mmag | |
| 8.46 GHz | C | B06 | < 42 μJy | |
| 2MASS J05591914-1404488 | HST G141 grism | V | Bu13 | |
| I c | C | K13 | ||
| K s | C | E03 | <7% | |
| J | C08 | C | <5 mmag | |
| I c | C | K04 | ||
| 8.46 GHz | B06 | <27 μJy | ||
| 2MASS J06244595-4521548 | HST G141 grism | V | Bu13 | |
| DENIS J081730.0-615520 | HST G141 grism | V | Bu13 | |
| 2MASS J09393548-2448279 | K’ | V | Kh13 | 0.31 mag |
| J | C | <0.141 mag | ||
| 2MASS J15344984-2952274 | I c | C | K13 | |
| I c | C | K05 | ||
| JH K s | C | KTTK05 | J< 10 mmag, H< 11 mmag, K< 18 mmag | |
| JH K s | V | KMM04 | H4 mmag, K 7 mmag, P = 0.96 hr | |
| 8.46 GHz | C | B06 | <63μJy | |
| 2MASS J16241436+0029158 | HST G141 grism | V | Bu13 | Variability detected in water band (1.35−1.44 μm) |
| JH K s | C | KMM04 | ||
| 8.46 GHz | C | B06 | <36μJy | |
| 2MASS J23312378-4718274 | J | V | C08 | ΔJ = 12.4 ± 1.3 mmag, P = 2.9 ± 0.9 hr |
|
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| Objects with reported optical variability measured as constants in this study | ||||
|
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| 2MASS J02284355-6325052 | Ic | V | K13 | |
Reference. Artigau et al. (2003) [A03]; Artigau et al. (2009) [A09]; Apai et al. (2013) [Ap13]; Berger (2006) [B06]; Buenzli et al. (2012) [Bu12]; Buenzli et al. (2014) [Bu13]; Clarke et al. (2008) [C08]; Enoch et al. (2003) [E03]; Gelino et al. (2002) [G02]; Khandrika et al. (2013) [Kh13]; Koen (2004) [K04]; Koen et al. (2004) [KMM04]; Koen et al. (2005) [KTTK05]; Koen (2005) [K05]; Koen (2013) [K13]; Radigan et al. (2012) [R12]; Zapatero Osorio et al. (2006) [Z06].
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