arXiv: Earth and Planetary Astrophysics最新文献_第10页

Solar System Formation in the Context of Extra-Solar Planets 太阳系外行星背景下的太阳系形成

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-12-03 DOI: 10.2458/azu_uapress_9780816540068

S. Raymond, A. Izidoro, A. Morbidelli

{"title":"Solar System Formation in the Context of Extra-Solar Planets","authors":"S. Raymond, A. Izidoro, A. Morbidelli","doi":"10.2458/azu_uapress_9780816540068","DOIUrl":"https://doi.org/10.2458/azu_uapress_9780816540068","url":null,"abstract":"Exoplanet surveys have confirmed one of humanity's (and all teenagers') worst fears: we are weird. If our Solar System were observed with present-day Earth technology -- to put our system and exoplanets on the same footing -- Jupiter is the only planet that would be detectable. The statistics of exo-Jupiters indicate that the Solar System is unusual at the ~1% level among Sun-like stars (or ~0.1% among all stars). But why are we different? Successful formation models for both the Solar System and exoplanet systems rely on two key processes: orbital migration and dynamical instability. Systems of close-in super-Earths or sub-Neptunes require substantial radial inward motion of solids either as drifting mm- to cm-sized pebbles or migrating Earth-mass or larger planetary embryos. We argue that, regardless of their formation mode, the late evolution of super-Earth systems involves migration into chains of mean motion resonances, generally followed by instability when the disk dissipates. This pattern is likely also ubiquitous in giant planet systems. We present three models for inner Solar System formation -- the low-mass asteroid belt, Grand Tack, and Early Instability models -- each invoking a combination of migration and instability. We identify bifurcation points in planetary system formation. We present a series of events to explain why our Solar System is so weird. Jupiter's core must have formed fast enough to quench the growth of Earth's building blocks by blocking the flux of inward-drifting pebbles. The large Jupiter/Saturn mass ratio is rare among giant exoplanets but may be required to maintain Jupiter's wide orbit. The giant planets' instability must have been gentle, with no close encounters between Jupiter and Saturn, also unusual in the larger (exoplanet) context. Our Solar System system is thus the outcome of multiple unusual, but not unheard of, events.","PeriodicalId":8428,"journal":{"name":"arXiv: Earth and Planetary Astrophysics","volume":"11 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78411410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 52

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 行星-恒星的相互作用与精确的凌日时间。1 . wasp - 12b的精炼轨道衰减率和hat - p - 23b、kelt - 1b、kelt - 16b、wasp - 33b和WASP-103 b的初始约束

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-12-01 DOI: 10.32023/0001-5237/68.4.4

G. Maciejewski, M. Fern'andez, F. Aceituno, S. Mart'in-Ruiz, J. Ohlert, D. Dimitrov, K. Szyszka, C. V. Essen, M. Mugrauer, R. Bischoff, K. Michel, M. Mallonn, M. Stangret, D. Mo'zdzierski

{"title":"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","authors":"G. Maciejewski, M. Fern'andez, F. Aceituno, S. Mart'in-Ruiz, J. Ohlert, D. Dimitrov, K. Szyszka, C. V. Essen, M. Mugrauer, R. Bischoff, K. Michel, M. Mallonn, M. Stangret, D. Mo'zdzierski","doi":"10.32023/0001-5237/68.4.4","DOIUrl":"https://doi.org/10.32023/0001-5237/68.4.4","url":null,"abstract":"Theoretical calculations and some indirect observations show that massive exoplanets on tight orbits must decay due to tidal dissipation within their host stars. This orbital evolution could be observationally accessible through precise transit timing over a course of decades. The rate of planetary in-spiralling may not only help us to understand some aspects of evolution of planetary systems, but also can be used as a probe of the stellar internal structure. In this paper we present results of transit timing campaigns organised for a carefully selected sample of hot Jupiter-like planets which were found to be the best candidates for detecting planet-star tidal interactions on the Northern hemisphere. Among them, there is the WASP-12 system which is the best candidate for possessing an in-falling giant exoplanet. Our new observations support the scenario of orbital decay of WASP-12 b and allow us to refine its rate. The derived tidal quality parameter of the host star Q'_{*} = (1.82 +/- 0.32) x 10^5 is in agreement with theoretical predictions for subgiant stars. For the remaining systems - HAT-P-23, KELT-1, KELT-16, WASP-33, and WASP-103 - our transit timing data reveal no deviations from the constant-period models, hence constraints on the individual rates of orbital decay were placed. The tidal quality parameters of host stars in at least 4 systems - HAT-P-23, KELT-1, WASP-33, and WASP-103 - were found to be greater than the value reported for WASP-12. This is in line with the finding that those hosts are main sequence stars, for which efficiency of tidal dissipation is predicted to be relatively weak.","PeriodicalId":8428,"journal":{"name":"arXiv: Earth and Planetary Astrophysics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81798882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Signatures of Hit-and-run Collisions 肇事逃逸碰撞的特征

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-10-13 DOI: 10.1017/9781316339794.002

E. Asphaug

引用次数: 9

Compositional Diversity Among Primitive Asteroids 原始小行星的成分多样性

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-09-04 DOI: 10.1016/C2016-0-05001-5

H. Campins, J. Leon, J. Licandro, A. Hendrix, Juan A. Sanchez, V. Alí-Lagoa

引用次数: 12

Atmospheric Retrieval of Exoplanets 系外行星的大气检索

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-08-14 DOI: 10.1007/978-3-319-55333-7_104

N. Madhusudhan

引用次数: 64

Data processing on simulated data for SHARK-NIR. SHARK-NIR模拟数据的数据处理。

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-08-09 DOI: 10.26698/AO4ELT5.0068

E. Carolo, D. Vassallo, J. Farinato, G. Agapito, M. Bergomi, A. Carlotti, M. D. Pascale, V. D’Orazi, D. Greggio, D. Magrin, L. Marafatto, D. Mesa, E. Pinna, A. Puglisi, M. Stangalini, C. Vérinaud, V. Viotto, F. Biondi, S. Chinellato, M. Dima, S. Esposito, F. Pedichini, E. Portaluri, R. Ragazzoni, G. Umbriaco

引用次数: 0

Chemistry During the Gas-rich Stage of Planet Formation 行星形成过程中富含气体阶段的化学

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-07-25 DOI: 10.1007/978-3-319-55333-7_137

E. Bergin, L. Cleeves

引用次数: 7

EPIC 220501947 b and K2-237 b: two transiting hot Jupiters EPIC 220501947 b和K2-237 b:两颗凌日热木星

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-07-16 DOI: 10.32023/0001-5237/69.2.3

Alexis M. S. Smith, S. Csizmadia, D. Gandolfi, S. Albrecht, R. Alonso, O. Barragán, J. Cabrera, W. Cochran, F. Dai, H. Deeg, P. Eigmüller, M. Endl, A. Erikson, M. Fridlund, Akihiko Fukui, S. Grziwa, E. Guenther, A. Hatzes, D. Hidalgo, T. Hirano, J. Korth, M. Kuzuhara, J. Livingston, N. Narita, D. Nespral, P. Niraula, G. Nowak, E. Pallé, M. Pätzold, C. M. Persson, J. Prieto-Arranz, H. Rauer, Seth Redfield, Ignasi Ribas, V. V. Eylen

引用次数: 3

Exoplanet Atmosphere Measurements from Direct Imaging 直接成像法测量系外行星大气

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-07-13 DOI: 10.1007/978-3-319-55333-7_101

B. Biller, M. Bonnefoy

引用次数: 6

Chemical connections between low-mass stars and planets building blocks investigated by stellar population synthesis 低质量恒星和行星组成部分之间的化学联系，由恒星群合成研究

arXiv: Earth and Planetary Astrophysics Pub Date : 2018-07-01 DOI: 10.5281/ZENODO.1489206

Cabral Nahuel, N. Lagarde, C. Reyl'e, A. Guilbert-Lepoutre, A. Robin

引用次数: 1