Results 91 to 100 of about 15,310 (235)

A new search for planet transits in NGC 6791

, 2007
Context. Searching for planets in open clusters allows us to study the effects of dynamical environment on planet formation and evolution. Aims. Considering the strong dependence of planet frequency on stellar metallicity, we studied the metal rich old
A. Aparicio, A. Arellano Ferro, A. Rosenberg, Adams, Adams, Aigrain, Armitage, Armitage, Baraffe, Bruntt, Burke, Carraro, Claret, Clementini, Corwin, Davies, Desidera, E. Poretti, F. De Marchi, F. Grundahl, Fischer, Freeman, Fregeau, G. Piotto, Gaudi, Gaudi, Gilliland, Girardi, Gratton, Guillot, H. Bruntt, Hartman, Hatzes, Kaluzny, Kaluzny, Kovács, Laughlin, M. Barbieri, M. Montalto, Mochejska, Mochejska, Orosz, P. B. Stetson, Paulson, Peterson, Piotto, Piotto, Pont, R. G. Gratton, R. U. Claudi, S. Desidera, Santos, Sato, Sigurdsson, Smith, Sozzetti, Stetson, Stetson, Stetson, Street, Tamuz, Taylor, Tingley, Tingley, von Braun, Woolfson, Y. Momany   +66 more
core   +1 more source

The Mass-Radius Relationship for Very Low Mass Stars: Four New Discoveries from the HATSouth Survey [PDF]

, 2013
We report the discovery of four transiting F-M binary systems with companions between 0.1-0.2 Msun in mass by the HATSouth survey. These systems have been characterised via a global analysis of the HATSouth discovery data, combined with high-resolution ...
Bakos, G. Á., Bayliss, D., Brahm, R., Ciceri, S., Csubry, Z., Csák, B., Espinoza, N., Hartman, J. D., Henning, T., Jordán, A., Mancini, L., Mohler-Fischer, M., Penev, K., Rabus, M., Schmidt, B., Suc, V., Tan, T. G., Zhou, G.   +17 more
core   +3 more sources

Functionally complementary bacterial inoculant coordinates arbuscular mycorrhizal fungi to improve Angelica sinensis root yield and quality

iMetaOmics, EarlyView.
Comprehensive understanding of how diverse PGPR strains enhance the rhizosphere microenvironment remains a considerable challenge. Here, we provide experimental evidence that a functionally synergistic composite microbial formulation can markedly enhance growth performance and improve the quality attributes in Angelica sinensis.
Zongyu Zhang, Yun Wang, Jiecai Zhao, Gaofeng Chen, Andéole Niyongabo Turatsinze, Liang Yue, Yuan Tian, Xiaofan Xie, Ailing Ye, Meilan Zhang, Lingling Wu, Zengxiang Guo, Yubao Zhang, Ruoyu Wang   +13 more
wiley   +1 more source

Singular Spectrum Analysis of Exoplanetary Transits

The Astronomical Journal
Transit photometry is currently the most efficient and sensitive method for detecting extrasolar planets (exoplanets) and a large majority of confirmed exoplanets have been detected with this method.
Hossein Fatheddin, Sedighe Sajadian
doaj   +1 more source

Lack of Transit Timing Variations of OGLE-TR-111b: A re-analysis with six new epochs [PDF]

, 2010
We present six new transits of the exoplanet OGLE-TR-111b observed with the Magellan Telescopes in Chile between April 2008 and March 2009. We combine these new transits with five previously published transit epochs for this planet between 2005 and 2006 ...
Ballard, Barnes, Carter, Claret, Coughlin, D. J. Osip, Díaz, E. R. Adams, Ford, Gibson, J. L. Elliot, M. López-Morales, Mandel, Miller-Ricci, Miller-Ricci, Minniti, Miralda-Escudé, S. Seager, Silva, Steffen, Udalski, Winn   +21 more
core   +2 more sources

Complement C3 mediates adolescent social isolation‐induced hippocampal synaptic deficits and sex‐specific emotional dysfunction

Interdisciplinary Medicine, EarlyView.
Adolescent social isolation disrupts hippocampal function and exacerbates emotional symptoms, with sex‐specific patterns, as shown by human studies. In mice, social isolation decreased hippocampal synaptic density and calcium signaling, upregulated complement proteins, and activated complement‐mediated microglial synaptic phagocytosis.
Yuwan Qi, Siying Weng, Qiao Yin, Mengqi Li, Liang Shen, Enyou Qiao, Lu Gao, Yihan Wang, Yuxuan Li, Weifeng Luo, Qilin Zhang, Jing Wang, Jianfeng Feng, Qifei Cong   +13 more
wiley   +1 more source

Precise Photometry and Spectroscopy of Transits

, 2007
A planetary transit produces both a photometric signal and a spectroscopic signal. Precise observations of the transit light curve reveal the planetary radius and allow a search for timing anomalies caused by satellites or additional planets. Precise measurements of the stellar Doppler shift throughout a transit (the Rossiter-McLaughlin effect) place a
openaire   +2 more sources

Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data

The Astrophysical Journal Supplement Series
Many hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang, Zixin Zhang, Zhangliang Chen, Yonghao Wang, Cong Yu, Bo Ma   +5 more
doaj   +1 more source

Root exudates mediate microorganisms to improve rhizosphere nutrient availability and crop productivity under straw mulching and slow‐release nitrogen fertilizer

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Root exudates play a key role as signals and nutrients in mediating plant–microbe communication. However, critical knowledge gaps remain regarding how root exudates mediate soil–microbe–plant interactions to regulate crop yield under long‐term straw mulching combined ...
Jiajie Song, Shahzad Haider, Jianheng Song, Dingding Zhang, Gaihe Yang, Guangxin Ren, Xing Wang, Yongzhong Feng   +7 more
wiley   +1 more source

The TESS-Keck Survey. VII. A Superdense Sub-Neptune Orbiting TOI-1824

The Astronomical Journal
We confirm a massive sub-Neptune-sized planet on a P = 22.8 days orbit around the star TOI-1824 ( T _eff = 5200 K, V = 9.7 mag). TESS first identified TOI-1824 b (formerly TOI-1824.01) as an object of interest in 2020 April after two transits in Sector ...
Sarah Lange, Joseph M. Akana Murphy, Natalie M. Batalha, Ian J. M. Crossfield, Courtney D. Dressing, Benjamin Fulton, Andrew W. Howard, Daniel Huber, Howard Isaacson, Stephen R. Kane, Erik A. Petigura, Paul Robertson, Lauren M. Weiss, Aida Behmard, Corey Beard, Sarah Blunt, Casey L. Brinkman, Ashley Chontos, Fei Dai, Paul A. Dalba, Tara Fetherolf, Steven Giacalone, Michelle L. Hill, Rae Holcomb, Jack Lubin, Mason G. MacDougall, Andrew W. Mayo, Teo Močnik, Daria Pidhorodetska, Alex S. Polanski, Malena Rice, Lee J. Rosenthal, Ryan A. Rubenzahl, Nicholas Scarsdale, Emma V. Turtelboom, Judah Van Zandt, David R. Ciardi, Andrew W. Boyle   +37 more
doaj   +1 more source