Initial list of eight potential red nova progenitors. M1 and q are the published mass of the primary and mass ratio. The [Fe/H] column lists the metallicity for each system as determined through LAMOST (L) or Gaia (G). The qinst range is the instability mass ratio range for the published value of M1 and determined metallicity with age set at half TAMS.
| Name . | M1 . | q . | [Fe/H] . | qinst range . |
|---|---|---|---|---|
| V1187 Her | 1.15 | 0.044 | |$-$|0.20 L | 0.053–0.056 |
| NSVS 780 649 | 0.79 | 0.098 | |$-$|0.40 G | 0.095–0.105 |
| GSC 02800–1387 | 0.85 | 0.115 | 0.09 L | 0.109–0.122 |
| TYC 7281-269-1 | 1.01 | 0.097 | 0.31 G | 0.096–0.105 |
| ASAS J170715−5118.7 | 1.22 | 0.072 | 0.50 G | 0.084–0.092 |
| WISE J185503.7+611804 | 1.00 | 0.051 | 0.00 G | 0.083–0.090 |
| WISE J141530.7+592234 | 1.04 | 0.055 | 0.21 G | 0.071–0.077 |
| TYC 4002-2628-1 | 1.11 | 0.048 | 0.34 G | 0.091–0.099 |
| Name . | M1 . | q . | [Fe/H] . | qinst range . |
|---|---|---|---|---|
| V1187 Her | 1.15 | 0.044 | |$-$|0.20 L | 0.053–0.056 |
| NSVS 780 649 | 0.79 | 0.098 | |$-$|0.40 G | 0.095–0.105 |
| GSC 02800–1387 | 0.85 | 0.115 | 0.09 L | 0.109–0.122 |
| TYC 7281-269-1 | 1.01 | 0.097 | 0.31 G | 0.096–0.105 |
| ASAS J170715−5118.7 | 1.22 | 0.072 | 0.50 G | 0.084–0.092 |
| WISE J185503.7+611804 | 1.00 | 0.051 | 0.00 G | 0.083–0.090 |
| WISE J141530.7+592234 | 1.04 | 0.055 | 0.21 G | 0.071–0.077 |
| TYC 4002-2628-1 | 1.11 | 0.048 | 0.34 G | 0.091–0.099 |
Initial list of eight potential red nova progenitors. M1 and q are the published mass of the primary and mass ratio. The [Fe/H] column lists the metallicity for each system as determined through LAMOST (L) or Gaia (G). The qinst range is the instability mass ratio range for the published value of M1 and determined metallicity with age set at half TAMS.
| Name . | M1 . | q . | [Fe/H] . | qinst range . |
|---|---|---|---|---|
| V1187 Her | 1.15 | 0.044 | |$-$|0.20 L | 0.053–0.056 |
| NSVS 780 649 | 0.79 | 0.098 | |$-$|0.40 G | 0.095–0.105 |
| GSC 02800–1387 | 0.85 | 0.115 | 0.09 L | 0.109–0.122 |
| TYC 7281-269-1 | 1.01 | 0.097 | 0.31 G | 0.096–0.105 |
| ASAS J170715−5118.7 | 1.22 | 0.072 | 0.50 G | 0.084–0.092 |
| WISE J185503.7+611804 | 1.00 | 0.051 | 0.00 G | 0.083–0.090 |
| WISE J141530.7+592234 | 1.04 | 0.055 | 0.21 G | 0.071–0.077 |
| TYC 4002-2628-1 | 1.11 | 0.048 | 0.34 G | 0.091–0.099 |
| Name . | M1 . | q . | [Fe/H] . | qinst range . |
|---|---|---|---|---|
| V1187 Her | 1.15 | 0.044 | |$-$|0.20 L | 0.053–0.056 |
| NSVS 780 649 | 0.79 | 0.098 | |$-$|0.40 G | 0.095–0.105 |
| GSC 02800–1387 | 0.85 | 0.115 | 0.09 L | 0.109–0.122 |
| TYC 7281-269-1 | 1.01 | 0.097 | 0.31 G | 0.096–0.105 |
| ASAS J170715−5118.7 | 1.22 | 0.072 | 0.50 G | 0.084–0.092 |
| WISE J185503.7+611804 | 1.00 | 0.051 | 0.00 G | 0.083–0.090 |
| WISE J141530.7+592234 | 1.04 | 0.055 | 0.21 G | 0.071–0.077 |
| TYC 4002-2628-1 | 1.11 | 0.048 | 0.34 G | 0.091–0.099 |
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