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| Query : 2017ApJ...841..124V |
2017ApJ...841..124V - Astrophys. J., 841, 124-124 (2017/June-1)
Frequent flaring in the TRAPPIST-1 system-unsuited for life?
VIDA K., KOVARI Z., PAL A., OLAH K. and KRISKOVICS L.
Abstract (from CDS):
We analyze the K2 light curve of the TRAPPIST-1 system. The Fourier analysis of the data suggests Prot = 3.295 ± 0.003 days. The light curve shows several flares, of which we analyzed 42 events with integrated flare energies of 1.26 x 1030-1.24 x 1033 erg. Approximately 12% of the flares were complex, multi-peaked eruptions. The flaring and the possible rotational modulation shows no obvious correlation. The flaring activity of TRAPPIST-1 probably continuously alters the atmospheres of the orbiting exoplanets, which makes these less favorable for hosting life.
Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.
Journal keyword(s): stars: activity - stars: chromospheres - stars: flare - stars: late-type - stars: low-mass - techniques: photometric - techniques: photometric
Simbad objects: 9
| Number of rows : 9 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | V* PW And | RS* | 00 18 20.8895755560 | +30 57 22.129174872 | 9.78 | 8.86 | 8.3 | 7.78 | K2V | 136 | 1 | |
| 2 | V* AD Leo | PM* | 10 19 36.2808181226 | +19 52 12.010446571 | 10.82 | 9.52 | 9.19 | dM3 | 1469 | 1 | ||
| 3 | NAME Proxima Centauri | PM* | 14 29 42.9461331854 | -62 40 46.164680672 | 14.21 | 12.95 | 11.13 | 9.45 | 7.41 | M5.5Ve | 1483 | 0 |
| 4 | V* EY Dra | BY* | 18 16 16.7795336184 | +54 10 21.732232332 | 13.69 | 11.84 | dM1.5e | 75 | 0 | |||
| 5 | V* VW Cep | SB* | 20 37 21.6316723003 | +75 36 01.894463230 | 8.13 | 7.0 | G8V+K0V | 561 | 0 | |||
| 6 | V* V374 Peg | PM* | 22 01 13.1241989539 | +28 18 24.907312662 | 11.602 | M3.5Ve | 259 | 0 | ||||
| 7 | TRAPPIST-1 | LM* | 23 06 29.3684948589 | -05 02 29.037301866 | 18.798 | 16.466 | 14.024 | M7.5e | 1306 | 0 | ||
| 8 | * lam And | RS* | 23 37 33.8427800830 | +46 27 29.344721109 | 5.54 | 4.84 | 3.82 | 3.04 | 2.47 | G8IVk | 693 | 0 |
| 9 | HD 224085 | RS* | 23 55 04.0520383542 | +28 38 01.245426862 | 8.88 | 8.20 | 6.9 | K2+IVeFe-1 | 756 | 0 |
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