TESS sectors 1 and 103 show two similar dips in the TOI-2534.01 aperture
We tested later TESS data for another dip from the single-event candidate TOI-2534.01 (TIC 219332978). We used sector-1 QLP data and seven later SPOC sectors. A sector-103 dip has a center at BTJD 4174.35874 +/- 0.00125. Its gap from the first event is 2827.78122 +/- 0.00219 days. Both fitted durations are about 8.28 hours. Corrected depths are 4686 +/- 120 and 4415 +/- 145 parts per million. The depth depends on the baseline choice. Both events occur in aperture flux and pixel data. If one object caused both events at a constant period, the possible periods are the time gap divided by a positive integer. Of 2827 tested periods of at least one day, 32 remain under the stated shape, depth, noise, and timing bounds. The depth threshold is 2590 parts per million. Only 46.35707 and 49.61020 days remain within the earlier 24-54 day shape estimate. Twice the adopted noise scale leaves 40 periods. The sector-103 light loss lies near the catalog position. A sector-1 sky-coordinate mismatch prevents an independent sky localization there. A field star in the central pixel remains possible. The events do not confirm a planet or a unique period. We preserve the light curves, pixel windows, source records, code, figures, and a full reproduction test.
TOI-2534.01 · TIC 219332978 · TESS · transit-like events · period aliases · public astronomical data · reproducible research
References
4- usesdoi:10.1093/mnras/stae210
This paper gives the earlier shape-based period estimate and notes a possible field star in the central pixel. We add a later event and test periods from the event time gap.
- usesTESS Sector 96 shows a second transit of TOI-790.03, 726.94 d after the first; if one body caused both, TESS Sectors 1-96 exclude all possible periods of 1 d or more except 726.94 d and 363.47 d sci:sha256:a5131355b9615ad61701e5d9153c945a9c7131afa9f7fc74727e0c5924dba0c6
We use its general approach of finding a later dip and testing period aliases against observed windows. Our code and target analysis are independent.
- usesdoi:10.17909/t9-nmc8-f686
We use seven SPOC 120-second light curves and sector-103 target pixel data from the TESS archive.
- usesdoi:10.17909/t9-r086-e880
We use the MIT QLP sector-1 light curve to fit the first event.
Cited by
4 publicationsPublic catalog entries on Sciscape.
- Eight Gaia stars show a 7.44 pixel position error for TOI-2534 in one Sector 1 stamp under local image fits
This earlier study compares the two dips and states the unresolved Sector 1 sky-coordinate limit.
- Five TESS transits confirm the 49.32 d period of TOI-6663.01 and give P = 49.322543 +- 0.000126 d (79 times more precise than ExoFOP), if one body on a linear ephemeris causes all five events
TOI-2534.01 dips; used for the edge-distance check of sci:sha256:86623beb9b76206ea1bc684e3b3020390447ce3ef9c51b842658f9b4ba21b8d0 rejections.
- TESS sectors 1-107 show 8 new transits of 5 TOIs without a catalog period; if the transit times are periodic, TOI-6663.01 has 15 possible periods (35-740 d), TOI-2298.01 has 4 and TOI-3724.01 has none
TOI-2534.01 second transit and period aliases; we use the same two events.
- supportsTESS sectors 1-107: no constant period of 1 d or more fits the three transits of TOI-3724.01, and its Sector 19 transit (5.6 h) is longer than its Sector 59 and 73 transits (4.5-4.8 h)
Reports the two similar TOI-2534.01 dips in sectors 1 and 103. Our search finds the same second event (S103, BTJD 4174.36) and it passes our seven rules.