J 2023

ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations

KOKORI, A., A. TSIARAS, B. EDWARDS, A. JONES, G. PANTELIDOU et. al.

Basic information

Original name

ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations

Authors

KOKORI, A., A. TSIARAS, B. EDWARDS, A. JONES, G. PANTELIDOU, G. TINETTI, L. BEWERSDORFF, A. ILIADOU, Y. JONGEN, G. LEKKAS, A. NASTASI, E. POULTOURTZIDIS, C. SIDIROPOULOS, F. WALTER, A. WUENSCHE, R. ABRAHAM, V. K. AGNIHOTRI, R. ALBANESI, E. ARCE-MANSEGO, D. ARNOT, M. AUDEJEAN, C. AUMASSON, M. BACHSCHMIDT, G. BAJ, P. R. BARROY, A. A. BELINSKI, D. BENNETT, P. BENNI, K. BERNACKI, L. BETTI, A. BIAGINI, P. BOSCH, P. BRANDEBOURG, L. BRAT, M. BRETTON, S M BRINCAT, S. BROUILLARD, A. BRUZAS, A. BRUZZONE, R. A. BUCKLAND, M. CALO, F. CAMPOS, A. CARRENO, J. A. CARRION RODRIGO, R. CASALI, G. CASALNUOVO, M. CATANEO, C. -M. CHANG, L. CHANGEAT, V. CHOWDHURY, R. CIANTINI, M. CILLUFFO, J. -F. COLIAC, G. CONZO, M. CORREA, G. COULON, N. CROUZET, M. V. CROW, I. A. CURTIS, D. DANIEL, B. DAUCHET, S. DAWES, M. DELDEM, D. DELIGEORGOPOULOS, G. DRANSFIELD, R. DYMOCK, T. EENMAEE, N. ESSEIVA, P. EVANS, C. FALCO, R. G. FARFAN, E. FERNANDEZ-LAJUS, S. FERRATFIAT, S. L. FERREIRA, A. FERRETTI, J. FIOLKA, M. FOWLER, S. R. FUTCHER, D. GABELLINI, T. GAINEY, J. GAITAN, P. GAJDOS, A. GARCIA-SANCHEZ, J. GARLITZ, C. GILLIER, C. GISON, J. GONZALES, D. GORSHANOV, F. GRAU HORTA, G. GRIVAS, P. GUERRA, T. GUILLOT, C. A. HASWELL, T. HAYMES, V. -P. HENTUNEN, K. HILLS, K. HOSE, T. HUMBERT, F. HURTER, T. HYNEK, M. IRZYK, J. JACOBSEN, A. L. JANNETTA, K. JOHNSON, P. JOZWIK-WABIK, A. E. KAEOUACH, W. KANG, H. KIISKINEN, T. KIM, Ue. KIVILA, B. KOCH, U. KOLB, Hana KUČÁKOVÁ (203 Czech Republic, belonging to the institution), S. -P. LAI, D. LALOUM, S. LASOTA, L. A. LEWIS, G. -I. LIAKOS, F. LIBOTTE, F. LOMOZ, C. LOPRESTI, R. MAJEWSKI, A. MALCHER, M. MALLONN, M. MANNUCCI, A. MARCHINI, J. -M. MARI, A. MARINO, G. MARINO, J. -C. MARIO, J. -B. MARQUETTE, F. A. MARTINEZ-BRAVO, M. MASEK, P. MATASSA, P. MICHEL, J. MICHELET, M. MILLER, E. MINY, D. MOLINA, T. MOLLIER, B. MONTELEONE, N. MONTIGIANI, M. MORALES-AIMAR, F. MORTARI, M. MORVAN, L. V. MUGNAI, G. MURAWSKI, L. NAPONIELLO, J. -L. NAUDIN, R. NAVES, D. NEEL, R. NEITO, S. NEVEU, A. NOSCHESE, Y. OEGMEN, O. OHSHIMA, Z. ORBANIC, E. P. PACE, C. PANTACCHINI, N. I. PASCHALIS, C. PEREIRA, I. PERETTO, V. PERROUD, M. PHILLIPS, P. PINTR, J. -B. PIOPPA, J. PLAZAS, A. J. POELARENDS, A. POPOWICZ, J. PURCELL, N. QUINN, M. RAETZ, D. REES, F. REGEMBAL, M. ROCCHETTO, P. -F. ROCCI, M. ROCKENBAUER, R. ROTH, L. ROUSSELOT, X. RUBIA, N. RUOCCO, E. RUSSO, M. SALISBURY, F. SALVAGGIO, A. SANTOS, J. SAVAGE, F. SCAGGIANTE, D. SEDITA, S. SHADICK, A. F. SILVA, N. SIOULAS, V. SKOLNIK, M. SMITH, M. SMOLKA, A. SOLMAZ, N. STANBURY, D. STOURAITIS, T. -G. TAN, M. THEUSNER, G. THURSTON, F. P. TIFNER, A. TOMACELLI, A. TOMATIS, J. TRNKA, M. TYLSAR, P. VALEAU, J. -P. VIGNES, A. VILLA, A. Vives SUREDA, K. VORA, M. VRASTAK, D. WALLIANG, B. WENZEL, D. E. WRIGHT, R. ZAMBELLI, M. ZHANG and M. ZIBAR

Edition

Astrophysical Journal Supplement Series, GB - Spojené království Velké Británie a, 2023, 0067-0049

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/23:A0000326

Organization unit

Institute of physics in Opava

UT WoS

000981818400001

Keywords in English

transiting hot Jupiter;optical-transmission spectrum; high-precision phometry; Saturn-mass planet;light-curve project;low-density planet;refined physical-properties;spin-orbit alignment; short-period planet; earth-sized planet

Tags

Tags

International impact, Reviewed
Změněno: 23/2/2024 10:50, Mgr. Pavlína Jalůvková

Abstract

V originále

The ExoClock project has been created to increase the efficiency of the Ariel mission. It will achieve this by continuously monitoring and updating the ephemerides of Ariel candidates, in order to produce a consistent catalog of reliable and precise ephemerides. This work presents a homogenous catalog of updated ephemerides for 450 planets, generated by the integration of similar to 18,000 data points from multiple sources. These sources include observations from ground-based telescopes (the ExoClock network and the Exoplanet Transit Database), midtime values from the literature, and light curves from space telescopes (Kepler, K2, and TESS). With all the above, we manage to collect observations for half of the postdiscovery years (median), with data that have a median uncertainty less than 1 minute. In comparison with the literature, the ephemerides generated by the project are more precise and less biased. More than 40% of the initial literature ephemerides had to be updated to reach the goals of the project, as they were either of low precision or drifting. Moreover, the integrated approach of the project enables both the monitoring of the majority of the Ariel candidates (95%), and also the identification of missing data. These results highlight the need for continuous monitoring to increase the observing coverage of the candidate planets. Finally, the extended observing coverage of planets allows us to detect trends (transit-timing variations) for a sample of 19 planets. All the products, data, and codes used in this work are open and accessible to the wider scientific community.