Astronomie Stiftung Trebur

Exoplaneten: Transit-Zeit-Variationen

16.06.2023	Entdeckung des Exoplaneten WASP-84c Hot Jupiters have been perceived as loners devoid of planetary companions in close orbital proximity. However, recent discoveries based on space-borne precise photometry have revealed that at least some fraction of giant planets coexists with low-mass planets in compact orbital architectures. We report detecting a 1.446-d transit-like signal in the photometric time series acquired with the Transiting Exoplanet Survey Satellite (TESS) for the WASP-84 system, which is known to contain a hot Jupiter on a circular 8.5-d orbit. The planet was validated based on TESS photometry, and its signal was distilled in radial velocity measurements. The joint analysis of photometric and Doppler data resulted in a multiplanetary model of the system...	...mehr
15.05.2023	Search for Planets in Hot Jupiter Systems with Multi-Sector TESS Photometry. III. A Study of Ten Systems Enhanced with New Ground-Based Photometry G. Maciejewski, M. Fernández, A. Sota, P.J. Amado, J. Ohlert, R. Bischoff, W. Stenglein, M. Mugrauer, K.-U. Michel, J. Golonka, A. Blanco Solsona, E. Lapena, J. Molins Freire, A. De los Ríos Curieses, J.A. Temprano Sicilia 2023, Acta Astronomica, Volume 73, No. 1, pp. 57-86
21.09.2022	Planet-star interactions with precise transit timing. III. Entering the regime of dynamical tides G. Maciejewski, M. Fernandez, A. Sota, P. J. Amado, D. Dimitrov, Y. Nikolov, J. Ohlert, M. Mugrauer, R. Bischoff, T. Heyne, F. Hildebrandt, W. Stenglein, A. A. Arevalo, S. Neira, L. A. Riesco, V. Sanchez Martinez, M. M. Verdugo 2022, Astronomy & Astrophysics 667, A127, Dec. 2022 https://doi.org/10.48550/arXiv.2209.10597 https://arxiv.org/abs/2209.10597 https://arxiv.org/pdf/2209.10597.pdf
13.08.2021	Revisiting TrES-5 b: departure from a linear ephemeris instead of short-period transit timing variation G. Maciejewski, M. Fernandez, F. Aceituno, J. L. Ramos, D. Dimitrov, Z. Donchev, J. Ohlert 2021, Astronomy & Astrophysics 656, A88, Dec. 2021 https://doi.org/10.1051/0004-6361/202142424 https://arxiv.org/abs/2110.14294 https://arxiv.org/pdf/2110.14294.pdf
06.12.2018	Planet-star interactions with precise transit timing. I. The refined orbital decay rate for WASP-12 b and initial constraints for HAT-P-23 b, KELT-1 b, KELT-16 b, WASP-33 b, and WASP-103 b G. Maciejewski, M. Fernández, F. Aceituno, S. Martín-Ruiz, J. Ohlert, D. Dimitrov, K. Szyszka, C. von Essen, M. Mugrauer, R. Bischoff, K.-U. Michel, M. Mallonn, M. Stangret, D. Mozdzierski 2018, Acta Astronomica, vol. 68, no 4, p. 371-401 https://arxiv.org/abs/1812.02438 https://arxiv.org/pdf/1812.02438.pdf
13.07.2018	New transit timing observations for GJ 436 b, HAT-P-3 b, HAT-P-19 b, WASP-3 b, and XO-2 b G. Maciejewski, M. Stangret, J. Ohlert, C.S. Basaran, J. Maciejczak, M. Puciata-Mroczynska, E. Boulanger 2018, Information Bulletin on Variable Stars, No. 6243, #1. http://adsabs.harvard.edu/abs/2018IBVS.6243....1M https://arxiv.org/abs/1808.03306 https://arxiv.org/pdf/1808.03306.pdf
10.03.2016	New transit observations for HAT-P-30 b, HAT-P-37 b, TrES-5 b, WASP-28 b, WASP-36 b, and WASP-39 b G.Maciejewski, D.Dimitrov, L.Mancini, J.Southworth, S.Ciceri, G.D'Ago, I.Bruni, St.Raetz, G.Nowak, J.Ohlert, D.Puchalski, G.Saral, E.Derman, R.Petrucci, E.Jofre, M.Seeliger, T.Henning 2016, Acta Astronomica 66, 55 http://adsabs.harvard.edu/abs/2016AcA....66...55M http://arxiv.org/abs/1603.03268 http://arxiv.org/pdf/1603.03268v1.pdf
01.03.2016	Departure from the constant-period ephemeris for the transiting exoplanet WASP-12 b G.Maciejewski, D.Dimitrov, M.Fernández, A.Sota, G.Nowak, J.Ohlert, G.Nikolov, L.Bukowiecki, T.C.Hinse, E.Palle, B.Tingley, D.Kjurkchieva, J.W.Lee, C.-U.Lee 2016, Astronomy & Astrophysics, 588, L6 http://adsabs.harvard.edu/abs/2016arXiv160209055M http://arxiv.org/abs/1602.09055 http://arxiv.org/pdf/1602.09055v1.pdf
22.05.2015	Ground-based transit observations of the HAT-P-18, HAT-P-19, HAT-P-27/WASP40 and WASP-21 systems Seeliger, M.; Kitze, M.; Errmann, R.; Richter, S.; Ohlert, J. M.; Chen, W. P.; Guo, J. K.; Gögüs, E.; Güver, T.; Aydin, B.; Mottola, S.; Hellmich, S.; Fernandez, M.; Aceituno, F. J.; Dimitrov, D.; Kjurkchieva, D.; Jensen, E.; Cohen, D.; Kundra, E.; Pribulla, T.; Vanko, M.; Budaj, J.; Mallonn, M.; Wu, Z.-Y.; Zhou, X.; Raetz, St.; Adam, C.; Schmidt, T. O. B.; Ide, A.; Mugrauer, M.; Marschall, L.; Hackstein, M.; Chini, R.; Haas, M.; Ak, T.; Güzel, E.; Özdönmez, A.; Ginski, C.; Marka, C.; Schmidt, J. G.; Dincel, B.; Werner, K.; Dathe, A.; Greif, J.; Wolf, V.; Buder, S.; Pannicke, A.; Puchalski, D.; Neuhäuser, R. 2015, Monthly Notices of the Royal Astronomical Society, Volume 451, Issue 4, p.4060-4072 http://arxiv.org/abs/1508.06215 http://arxiv.org/pdf/1508.06215v1.pdf http://mnras.oxfordjournals.org/content/451/4/4060.full.pdf
24.03.2015	No variations in transit times for Qatar-1 b G. Maciejewski, M. Fernández, F. J. Aceituno, J. Ohlert, D. Puchalski, D. Dimitrov, M. Seeliger, M. Kitze, St. Raetz, R. Errman, H. Gilbert, A. Pannicke, J.-G. Schmidt, and R. Neuhäuser 2015, Astronomy & Astrophysics, Volume 577, id.A109, 7 pp. http://arxiv.org/abs/1503.07191 http://arxiv.org/pdf/1503.07191v1.pdf
29.08.2014	Transit timing of TrES-2: a combined analysis of ground- and space-based photometry St. Raetz, G. Maciejewski, Ch. Ginski, M. Mugrauer, A. Berndt, T. Eisenbeiss, Ch. Adam, M. Raetz, T. Roell, M. Seeliger, C. Marka, M. Vanko, L. Bukowiecki, R. Errmann, M. Kitze, J. Ohlert, T. Pribulla, J.G. Schmidt, D. Sebastian, D. Puchalski, N. Tetzlaff, M.M. Hohle, T.O.B. Schmidt and R. Neuhäuser 2014, MNRAS, 444, 1351-1368 http://mnras.oxfordjournals.org/content/444/2/1351 http://adsabs.harvard.edu/abs/2014MNRAS.444.1351R http://arxiv.org/pdf/1408.7022v1.pdf
25.04.2014	Transit Timing Analysis in the HAT-P-32 System M.Seeliger, D.Dimitrov, D.Kjurkchieva, M.Mallonn, M.Fernandez, M.Kitze, V.Casanova, G.Maciejewski, J.M.Ohlert, J.G.Schmidt, A.Pannicke, D.Puchalski, E.Gögüs, T.Güver, S.Bilir, T.Ak, M.M.Hohle, T.O.B.Schmidt, R.Errmann, E.Jensen, D.Cohen, L.Marschall, G.Saral, I.Bernt, E.Derman, C.Galan, R.Neuhaeuser 2014, MNRAS, 441, 304 http://adsabs.harvard.edu/abs/2014MNRAS.441..304S
26.02.2014	Revisiting Parameters for the WASP-1 Planetary System G. Maciejewski, J. Ohlert, D. Dimitrov, D. Puchalski, J. Nedorošcík, M. Vanko, C. Marka, S. Baar, St. Raetz, M. Seeliger, and R. Neuhäuser 2014, Acta Astronomica, Volume 64, pp. 27 - 43 http://arxiv.org/abs/1402.6518
26.09.2013	Constraints on a Second Planet in the WASP-3 System G.Maciejewski, A.Niedzielski, A.Wolszczan, G.Nowak, R.Neuhaeuser, J.N.Winn, B.Deka, M.Adamów, M.Górecka, M.Fernandez, F.J.Aceituno, J.Ohlert, R.Errmann, M.Seeliger, D.Dimitrov, D.W.Latham, G.A.Esquerdo, L.McKnight, M.J.Holman, E.L.N.Jensen, U.Kramm, T.Pribulla, St.Raetz, T.O.B.Schmidt, Ch.Ginski, S.Mottola, S.Hellmich, Ch.Adam, H.Gilbert, M.Mugrauer, G.Saral, V.Popov, M.Raetz 2013, The Astronomical Journal, Volume 146, Issue 6, article id. 147, 12 pp. http://adsabs.harvard.edu/abs/2013AJ....146..147M
28.06.2012	The DWARF project: Eclipsing binaries – precise clocks to discover exoplanets T. Pribulla, M. Vanko, … J. Ohlert … 2012, Astronomische Nachrichten Vol.333, Issue 8, p.754 https://arxiv.org/abs/1206.6709 https://arxiv.org/pdf/1206.6709.pdf

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