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1. Exploiting timing capabilities of the CHEOPS mission with warm-Jupiter planets

Author

L, Borsato, G, Piotto, D, Gandolfi, V, Nascimbeni, G, Lacedelli, F, Marzari, N, Billot, P, Maxted, G, Sousa S, C, Cameron A, A, Bonfanti, T, Wilson, L, Serrano, Z, Garai, Y, Alibert, R, Alonso, J, Asquier, T, Bárczy, T, Bandy, D, Barrado, C, Barros S, W, Baumjohann, M, Beck, T, Beck, W, Benz, X, Bonfils, A, Brandeker, C, Broeg, J, Cabrera, S, Charnoz, S, Csizmadia, M, Davies, M, Deleuil, L, Delrez, D, Demangeon O, B, Demory, A, Lecavelier des Etangs, D, Ehrenreich, A, Erikson, G, Escudé, A, Fortier, L, Fossati, M, Fridlund, M, Gillon, M, Guedel, J, Hasiba, K, Heng, S, Hoyer, G, Isaak K, L, Kiss L, E, Kopp, J, Laskar, M, Lendl, C, Lovis, D, Magrin, M, Munari, R, Ottensamer, G, Peter, R, Ragazzoni, N, Rando, E, Simon A, M, Steller, G, Olofsson, I, Pagano, E, Palle, D, Pollacco, D, Queloz, H, Rauer, I, Ribas, D, Segransan, M, Santos N, G, Scandariato, A, Smith, M, Szabo G, N, Thomas, S, Udry, Grootel V, Van, A, Walton N, L, Borsato, G, Piotto, D, Gandolfi, V, Nascimbeni, G, Lacedelli, F, Marzari, N, Billot, P, Maxted, G, Sousa S, C, Cameron A, A, Bonfanti, T, Wilson, L, Serrano, Z, Garai, Y, Alibert, R, Alonso, J, Asquier, T, Bárczy, T, Bandy, D, Barrado, C, Barros S, W, Baumjohann, M, Beck, T, Beck, W, Benz, X, Bonfils, A, Brandeker, C, Broeg, J, Cabrera, S, Charnoz, S, Csizmadia, M, Davies, M, Deleuil, L, Delrez, D, Demangeon O, B, Demory, A, Lecavelier des Etangs, D, Ehrenreich, A, Erikson, G, Escudé, A, Fortier, L, Fossati, M, Fridlund, M, Gillon, M, Guedel, J, Hasiba, K, Heng, S, Hoyer, G, Isaak K, L, Kiss L, E, Kopp, J, Laskar, M, Lendl, C, Lovis, D, Magrin, M, Munari, R, Ottensamer, G, Peter, R, Ragazzoni, N, Rando, E, Simon A, M, Steller, G, Olofsson, I, Pagano, E, Palle, D, Pollacco, D, Queloz, H, Rauer, I, Ribas, D, Segransan, M, Santos N, G, Scandariato, A, Smith, M, Szabo G, N, Thomas, S, Udry, Grootel V, Van, and A, Walton N

Abstract

We present 17 transit light curves of seven known warm-Jupiters observed with the CHaracterising ExOPlanet Satellite (CHEOPS). The light curves have been collected as part of the CHEOPS Guaranteed Time Observation (GTO) program that searches for transit-timing variation (TTV) of warm-Jupiters induced by a possible external perturber to shed light on the evolution path of such planetary systems. We describe the CHEOPS observation process, from the planning to the data analysis. In this work we focused on the timing performance of CHEOPS, the impact of the sampling of the transit phases, and the improvement we can obtain combining multiple transits together. We reached the highest precision on the transit time of about 13-16 s for the brightest target (WASP-38, G = 9.2) in our sample. From the combined analysis of multiple transits of fainter targets with G >= 11 we obtained a timing precision of about 2 min. Additional observations with CHEOPS, covering a longer temporal baseline, will further improve the precision on the transit times and will allow us to detect possible TTV signals induced by an external perturber., Comment: 23 pages, 19 figures, 8 tables. Accepted for publication in MNRAS

Published
2021

2. Exploiting timing capabilities of the CHEOPS mission with warm-Jupiter planets

Author

L, Borsato, G, Piotto, D, Gandolfi, V, Nascimbeni, G, Lacedelli, F, Marzari, N, Billot, P, Maxted, G, Sousa S, C, Cameron A, A, Bonfanti, T, Wilson, L, Serrano, Z, Garai, Y, Alibert, R, Alonso, J, Asquier, T, Bárczy, T, Bandy, D, Barrado, C, Barros S, W, Baumjohann, M, Beck, T, Beck, W, Benz, X, Bonfils, A, Brandeker, C, Broeg, J, Cabrera, S, Charnoz, S, Csizmadia, M, Davies, M, Deleuil, L, Delrez, D, Demangeon O, B, Demory, A, Lecavelier des Etangs, D, Ehrenreich, A, Erikson, G, Escudé, A, Fortier, L, Fossati, M, Fridlund, M, Gillon, M, Guedel, J, Hasiba, K, Heng, S, Hoyer, G, Isaak K, L, Kiss L, E, Kopp, J, Laskar, M, Lendl, C, Lovis, D, Magrin, M, Munari, R, Ottensamer, G, Peter, R, Ragazzoni, N, Rando, E, Simon A, M, Steller, G, Olofsson, I, Pagano, E, Palle, D, Pollacco, D, Queloz, H, Rauer, I, Ribas, D, Segransan, M, Santos N, G, Scandariato, A, Smith, M, Szabo G, N, Thomas, S, Udry, Grootel V, Van, A, Walton N, L, Borsato, G, Piotto, D, Gandolfi, V, Nascimbeni, G, Lacedelli, F, Marzari, N, Billot, P, Maxted, G, Sousa S, C, Cameron A, A, Bonfanti, T, Wilson, L, Serrano, Z, Garai, Y, Alibert, R, Alonso, J, Asquier, T, Bárczy, T, Bandy, D, Barrado, C, Barros S, W, Baumjohann, M, Beck, T, Beck, W, Benz, X, Bonfils, A, Brandeker, C, Broeg, J, Cabrera, S, Charnoz, S, Csizmadia, M, Davies, M, Deleuil, L, Delrez, D, Demangeon O, B, Demory, A, Lecavelier des Etangs, D, Ehrenreich, A, Erikson, G, Escudé, A, Fortier, L, Fossati, M, Fridlund, M, Gillon, M, Guedel, J, Hasiba, K, Heng, S, Hoyer, G, Isaak K, L, Kiss L, E, Kopp, J, Laskar, M, Lendl, C, Lovis, D, Magrin, M, Munari, R, Ottensamer, G, Peter, R, Ragazzoni, N, Rando, E, Simon A, M, Steller, G, Olofsson, I, Pagano, E, Palle, D, Pollacco, D, Queloz, H, Rauer, I, Ribas, D, Segransan, M, Santos N, G, Scandariato, A, Smith, M, Szabo G, N, Thomas, S, Udry, Grootel V, Van, and A, Walton N

Abstract

We present 17 transit light curves of seven known warm-Jupiters observed with the CHaracterising ExOPlanet Satellite (CHEOPS). The light curves have been collected as part of the CHEOPS Guaranteed Time Observation (GTO) program that searches for transit-timing variation (TTV) of warm-Jupiters induced by a possible external perturber to shed light on the evolution path of such planetary systems. We describe the CHEOPS observation process, from the planning to the data analysis. In this work we focused on the timing performance of CHEOPS, the impact of the sampling of the transit phases, and the improvement we can obtain combining multiple transits together. We reached the highest precision on the transit time of about 13-16 s for the brightest target (WASP-38, G = 9.2) in our sample. From the combined analysis of multiple transits of fainter targets with G >= 11 we obtained a timing precision of about 2 min. Additional observations with CHEOPS, covering a longer temporal baseline, will further improve the precision on the transit times and will allow us to detect possible TTV signals induced by an external perturber., Comment: 23 pages, 19 figures, 8 tables. Accepted for publication in MNRAS

Published
2021

3. Reaksi Pasar Setelah Hasil Pemilu 2004 (Studi Terpilihnya SBY sebagai Presiden RI Periode 2004-2009)

Author

Munari, M. (Munari), Munari, M. (Munari), Munari, M. (Munari), and Munari, M. (Munari)

Abstract

Interconnected political event sliver with economics stability a state. Chosen event of Susilo Bambang Yudhoyono on 20 October 2004 representing political event have national scale able to influence sentiment reaction of capital market in Indonesia is. Chosen of President of Susilo Bambang Yudhoyono on 20 October 2004 representing big achievement in democratian of Indonesian nation, namely Indonesian nation will execute election of president directly and in moderation if the event registered in general election history since Indonesia independence, because this matter represent firstly times rill in democracy in Indonesia. Many economic observer of prediction that perpetrator of money market and stock market will react positive to the is chosen of Susilo Bambang Yudhoyono as President of RI, and also the nun election at ease and peaceful relative. Based on breakdown of above hence this research aim to know and analyze abnormal difference return and also stock transaction volume before and after chosen event of Susilo Bambang Yudhoyono on 20 October 2004.Object in this research manufacturing business which commerce of its active share stock and joined into company of LQ- 45 on 20 October 2004 that is amounting to 16 company. To test hypothesis which raised in this research hence used different test analysis technique one sample ( test t sample one) . Of analysis above data which have been showed that first hypothesis which raised namely there abnormal difference return before and after chosen event of Susilo Bambang Yudhoyono on 20 October 2004, cannot be proven its truth, the mentioned supported by result of examination with test of t where obtained t-test equal to 0,763 with level of significant 0,465. and so do second hypothesis which raised namely there is difference of volume trading of activity before and after chosen event of Susilo Bambang Yudhoyono on 20 October 2004, cannot be proven its truth, the mentioned supported by result of examination with test of t

Published
2007

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