2022MNRAS.514...77M

Query : 2022MNRAS.514...77M

2022MNRAS.514...77M - Mon. Not. R. Astron. Soc., 514, 77-104 (2022/July-3)

Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using PYCHEOPS.

MAXTED P.F.L., EHRENREICH D., WILSON T.G., ALIBERT Y., COLLIER CAMERON A., HOYER S., SOUSA S.G., OLOFSSON G., BEKKELIEN A., DELINE A., DELREZ L., BONFANTI A., BORSATO L., ALONSO R., ANGLADA ESCUDE G., BARRADO D., BARROS S.C.C., BAUMJOHANN W., BECK M., BECK T., BENZ W., BILLOT N., BIONDI F., BONFILS X., BRANDEKER A., BROEG C., BARCZY T., CABRERA J., CHARNOZ S., CORRAL VAN DAMME C., CSIZMADIA S., DAVIES M.B., DELEUIL M., DEMANGEON O.D.S., DEMORY B.-O., ERIKSON A., FLOREN H.G., FORTIER A., FOSSATI L., FRIDLUND M., FUTYAN D., GANDOLFI D., GILLON M., GUEDEL M., GUTERMAN P., HENG K., ISAAK K.G., KISS L., LASKAR J., LECAVELIER DES ETANGS A., LENDL M., LOVIS C., MAGRIN D., NASCIMBENI V., OTTENSAMER R., PAGANO I., PALLE E., PETER G., PIOTTO G., POLLACCO D., POZUELOS F.J., QUELOZ D., RAGAZZONI R., RANDO N., RAUER H., REIMERS C., RIBAS I., SALMON S., SANTOS N.C., SCANDARIATO G., SIMON A.E., SMITH A.M.S., STELLER M., SWAYNE M.I., SZABO G.M., SEGRANSAN D., THOMAS N., UDRY S., VAN GROOTEL V. and WALTON N.A.

Abstract (from CDS):

CHEOPS (CHaracterising ExOPlanet Satellite) is an ESA S-class mission that observes bright stars at high cadence from low-Earth orbit. The main aim of the mission is to characterize exoplanets that transit nearby stars using ultrahigh precision photometry. Here, we report the analysis of transits observed by CHEOPS during its Early Science observing programme for four well-known exoplanets: GJ 436 b, HD 106315 b, HD 97658 b, and GJ 1132 b. The analysis is done using PYCHEOPS, an open-source software package we have developed to easily and efficiently analyse CHEOPS light-curve data using state-of-the-art techniques that are fully described herein. We show that the precision of the transit parameters measured using CHEOPS is comparable to that from larger space telescopes such as Spitzer Space Telescope and Kepler. We use the updated planet parameters from our analysis to derive new constraints on the internal structure of these four exoplanets.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): methods: data analysis - software: data analysis - planets and satellites: fundamental parameters

VizieR on-line data: <Available at CDS (J/MNRAS/514/77): table1.dat lc01.dat-lc09.dat>

Simbad objects: 32

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Number of rows : 32
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 WT 2353 PM* 00 29 12.3029193648 -30 27 13.466857032   13.05 11.95     ~ 102 0
2 TYC 67-354-1 SB* 03 39 09.6380569440 +03 05 37.670638992   11.73 11.38     ~ 7 0
3 HD 24465 SB* 03 54 03.3711189792 +15 08 30.187887792   9.48 8.97     F8(N) 22 1
4 2MASS J05221817-2507112 EB* 05 22 18.1714703592 -25 07 11.193636180   18.19   15.81 13.69 M4-5+M4-5 10 0
5 TYC 8527-329-1 SB* 05 43 51.4708541544 -57 09 48.620946996   12.45 11.67     ~ 17 0
6 * rho01 Cnc b Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 267 1
7 * rho01 Cnc e Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 682 1
8 1SWASP J101350.84+015928.1 SB* 10 13 50.8314491832 +01 59 28.227909696   12.05 11.87     ~ 17 0
9 NAME L 320-124b Pl 10 14 51.7786855411 -47 09 24.192778106           ~ 223 0
10 NAME L 320-124c Pl 10 14 51.7786855411 -47 09 24.192778106           ~ 24 0
11 L 320-124 PM* 10 14 51.7786855411 -47 09 24.192778106     13.49 12.26 10.69 M3.5V 159 0
12 UCAC4 261-053921 SB* 10 38 24.4774324080 -37 50 17.989384452   14.244 13.587 13.600   ~ 8 0
13 HD 93396b Pl 10 46 49.7401839144 -09 23 56.495447700           ~ 70 0
14 HD 93396 PM* 10 46 49.7401839144 -09 23 56.495447700   8.87 8.04     G8/K0IV 73 0
15 HD 97635 ** 11 14 03.6382523214 -15 26 07.115173738   8.15 7.79     F2/3III 34 0
16 HD 97658 PM* 11 14 33.1612754184 +25 42 37.390358520 9.049 8.569 7.714 7.259 6.835 K1V 222 1
17 HD 97658b Pl 11 14 33.1612754184 +25 42 37.390358520           ~ 234 1
18 TOI-673 * 11 15 59.6434832040 -36 27 33.853060656   12.891 12.390 12.388   ~ 8 0
19 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
20 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 750 1
21 HD 106315 * 12 13 53.3962381416 -00 23 36.553445304   9.402 8.951     F5V 62 0
22 HD 106315b Pl 12 13 53.3962381416 -00 23 36.553445304           ~ 30 0
23 HD 133112b Pl 15 02 44.8678907928 -03 01 52.986571896           ~ 144 0
24 * nu.02 Lup PM* 15 21 48.1499105161 -48 19 03.469906910 6.35 6.30 5.65     G2-V 354 1
25 * nu.02 Lup b Pl 15 21 48.1499105161 -48 19 03.469906910           ~ 49 1
26 V* CM Dra BY* 16 34 20.3302660573 +57 09 44.368918696   14.50 12.87 10.85 9.26 M4.5V 467 0
27 UCAC2 13875304 SB* 19 34 25.6914014040 -42 23 11.978701836   13.38 12.62 12.57 11.82 ~ 11 0
28 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
29 TYC 524-2528-1 SB* 20 46 43.8759722040 +06 18 09.706470732   10.48 9.86     ~ 10 0
30 BD+18 4748 EB* 21 16 45.2252681832 +19 21 36.822886560   9.71 9.32     F7 8 1
31 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1
32 TYC 7519-142-1 SB* 23 49 15.2397740040 -32 46 17.466168252   12.14 11.52     ~ 10 0

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