2025RNAAS...9...81B

Query : 2025RNAAS...9...81B

2025RNAAS...9...81B - Research Notes of the AAS, 9, 81 (2025/April-0)

Transit-APP: A Centroid-free Method of Identifying Background Transit False Positives.

BRYSON S. and KUNIMOTO M.

Abstract (from CDS):

We present a centroid-free method to identify which star is the source of a known transit signal from pixel data. This method is based on observed and simulated difference images, and provides a relative probability of a star being the source of the transit compared to other known stars. This method is robust at low S/N compared to common centroid-based methods, and is well suited for space-based transit surveys such as Kepler and TESS.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Exoplanets - Surveys

Simbad objects: 1

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Number of rows : 1
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 KOI-109 Er* 19 33 49.0289660592 +39 48 14.131500372   12.920   12.331   ~ 15 1

Query : 2025RNAAS...9...81B

Basic data :
KOI-109 -- Eruptive Variable
Other object types: otypes_help 		* (2009yCat,UCAC4,...), Er* (2021AJ), NIR (2MASS)
ICRS coord. (ep=J2000) : 		19 33 49.0289660592 +39 48 14.131500372 (Optical) [ 0.0259 0.0269 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 32 06.3050141172 +39 41 38.563202754 [ 0.0259 0.0269 90 ]
Gal coord. (ep=J2000) : 		072.9543901681769 +09.5665201407723 [ 0.0259 0.0269 90 ]
Proper motions mas/yr : 		-0.821 2.598 [0.032 0.034 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -19.67 [0.82] / z(spectroscopic) -0.000066 [0.000003] / cz -19.67 [0.82]
   (Opt) A 2022yCat.1355....0G
Parallaxes (mas): 		1.9027 [0.0303] A 2020yCat.1350....0G
Fluxes (9) :
B 12.920 [0.02] D 2012yCat.1322....0Z
R 12.331 [0.06] E 2012yCat.1322....0Z
G 12.345661 [0.002775] C 2020yCat.1350....0G
J 11.335 [0.020] C 2003yCat.2246....0C
H 11.062 [0.020] C 2003yCat.2246....0C
K 10.980 [0.020] C 2003yCat.2246....0C
g 12.558 [0.01] D 2012yCat.1322....0Z
r 12.324 [0.05] D 2012yCat.1322....0Z
i 12.176 [0.06] D 2012yCat.1322....0Z
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notes:

Identifiers (6) :
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UCAC4 650-072808 KOI-109 Gaia DR3 2053230698073349632
KIC 4752451 2MASS J19334902+3948141 Gaia DR2 2053230698073349632

References (15 between 1850 and 2026) (Total 15)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 2    Distance : 2    Plx : 2    PM : 2   

   

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Link by name to the catalogue in VizieR :

UCAC4 650-072808 KIC 4752451 2MASS J19334902+3948141 Gaia DR3 2053230698073349632 Gaia DR2 2053230698073349632

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