Results 71 to 80 of about 274,344 (248)

A Six Year, Low-resolution, Multibroadband Transit Photometry Study of HD 189733b

The Astronomical Journal, 2022
Transmission spectroscopy offers an invaluable opportunity to characterize the atmospheres of exoplanets. We present new ground-based optical transmission spectra of the hot Jupiter HD 189733b, derived from nine transits observed over a six year time ...
Cristilyn N. Gardner-Watkins, Henry A. Kobulnicky, Hannah Jang-Condell, David H. Kasper, Brock A. Parker, Ted Bucci, Evan M. Cook, Kaitlin A. Doublestein, Cade Freels, Dax G. T. Galloway, Sabrina Helck, Corinne Komlodi, Michael J. Lindman, McKell Lyon, Ashley N. Piccone, Samantha Wilkerson   +15 more
doaj   +1 more source

A hot Uranus transiting the nearby M dwarf GJ 3470 - Detected with HARPS velocimetry. Captured in transit with TRAPPIST photometry [PDF]

, 2012
We report on the discovery of GJ 3470 b, a transiting hot Uranus of mass mp = 14.0 ± 1.8 M⊕, radius Rp = 4.2 ± 0.6 R⊕ and period P = 3.3371 ± 0.0002 day. Its host star is a nearby (d = 25.2 ± 2.9 pc) M1.5 dwarf of mass M⋆ = 0.54 ± 0.07 M⊙ and radius R⋆ =
X. Bonfils, M. Gillon, S. Udry, David J Armstrong, F. Bouchy, X. Delfosse, T. Forveille, E. Jehin, M. Lendl, C. Lovis, M. Mayor, J. McCormac, V. Neves, F. Pepe, C. Perrier, D. Pollaco, D. Queloz, N. Santos   +17 more
semanticscholar   +1 more source

Subicular Astrocytes Govern Seizure‐Impaired Fear Memory

Advanced Science, EarlyView.
Astrocytes in dorsal subiculum act as a critical modulator of seizure‐associated cognitive dysfunction, operating through a Ca2+‐dependent adenosine‐linked astrocyte‐neuron signaling pathway that disrupts neuronal circuit homeostasis. This research highlights the potential of astrocyte‐targeted interventions as a therapeutic strategy, moving beyond the
Yuying Shao, Jing Xi, Yuhao Sun, Yulan Li, Zhisheng Li, Wangjialu Lu, Jialu Chen, Lin Yang, Fan Fei, Heming Cheng, Li Cheng, Cenglin Xu, Zhuo Huang, Vladimir Parpura, Yi Wang, Zhong Chen   +15 more
wiley   +1 more source

Astrocytic PCBP1 Suppresses Ferroptosis to Restore Glutamatergic Homeostasis and Mitigate Stress‐Induced Depression in Male Mice

Advanced Science, EarlyView.
This study demonstrates that polyC‐RNA‐binding protein 1 (PCBP1) in ventral hippocampal astrocytes modulates depressive‐like behaviors by regulating glutathione peroxidase 4‐mediated ferroptosis and synaptic glutamatergic transmission. PCBP1 overexpression intervention in the chronic unpredictable mild stress model rescues behavioral deficits ...
Jinyu Zhang, Binbin Zhao, Min Jia, Yan Zhao, Ye Lu, Wenyu Xi, Ziyu Zhu, Xiaojuan Gong, Qingyan Ma, Yuan Gao, Yijie Guo, Pan Li, Feng Zhu, Shuguang Wei, Xiancang Ma, Yunpeng Wang   +15 more
wiley   +1 more source

Updated Masses for the Gas Giants in the Eight-planet Kepler-90 System Via Transit-timing Variation and Radial Velocity Observations

The Astronomical Journal
The eight-planet Kepler-90 system exhibits the greatest multiplicity of planets found to date. All eight planets are transiting and were discovered in photometry from the NASA Kepler primary mission. The two outermost planets, g ( P _g  = 211 days) and h
David E. Shaw, Lauren M. Weiss, Eric Agol, Karen A. Collins, Khalid Barkaoui, Cristilyn N. Watkins, Richard P. Schwarz, Howard M. Relles, Chris Stockdale, John F. Kielkopf, Fabian Rodriguez Frustaglia, Allyson Bieryla, Joao Gregorio, Owen Mitchem, Katherine Linnenkohl, Adam Popowicz, Norio Narita, Akihiko Fukui, Michaël Gillon, Ramotholo Sefako, Avi Shporer, Adam Lark, Amelie Heying, Isa Khan, Beibei Chen, Kylee Carden, Donald M. Terndrup, Robert Taylor, Dasha Crocker, Sarah Ballard, Daniel C. Fabrycky   +30 more
doaj   +1 more source

Following up TESS Single Transits with Archival Photometry and Radial Velocities [PDF]

, 2021
Xinyu Yao, Joshua Pepper, B. Scott Gaudi, Paul A. Dalba, Jennifer A. Burt, Robert A. Wittenmyer, Diana Dragomir, Joseph E. Rodriguez, Steven Villanueva, Daniel J. Stevens, Keivan G. Stassun, David J. James, Xinyu Yao, Joshua Pepper, B. Scott Gaudi, Paul A. Dalba, Jennifer A. Burt, Robert A. Wittenmyer, Diana Dragomir, Joseph E. Rodriguez, Steven Villanueva, Daniel J. Stevens, Keivan G. Stassun, David J. James   +23 more
openalex   +1 more source

Behavior‐ and Cell Type‐Specific Cortico‐Striatal Decoupling in a Parkinson's Disease‐Like Mouse Model

Advanced Science, EarlyView.
Utilizing dual‐site fiber photometry, this study examines cortico‐striatal coupling with cell type resolution, identifying behavior‐ and cell type‐specific cortico striatal decoupling and its dopamine‐dependent mechanism in a Parkinson's disease mouse model.
Xu‐Ran Yao, Yang Liu, Wei‐Tong Zheng, Mao‐Qing Huang, Kai‐Wen He   +4 more
wiley   +1 more source

A transit timing analysis with combined ground- and space-based photometry

EPJ Web of Conferences, 2015
The analysis of timing variations of transiting exoplanets allows one to discover additional planets in the system. Such bodies can be very low in mass and radius, so that they remain undetected by transit or radial velocity methods.
Raetz St., Fernandez M., Marka C., Heras A. M., Maciejewski G.   +4 more
doaj   +1 more source

Mauna Kea High Speed Photometry of Transits of the Extrasolar Planet HD 209458B

Open Astronomy, 2003
Using high-speed photometry techniques, three transits of the extrasolar planet across the disk of the star HD 209458 have been observed. The combination of a WET-style 3-channel photometer and an excellent site yielded millimagnitude photometric ...
Sullivan Denis J., Sullivan Tiri
doaj   +1 more source

Advancing the Tendinopathy Triad: Comment on “Tendinopathy: The Interplay Between Mechanical Stress, Inflammation, and Vascularity”

Advanced Science, EarlyView.
Abstract Building upon the integrative framework of tendinopathy proposed by Gehwolf et al.—which elegantly connects mechanical stress, inflammation, and vascularity—this commentary extends the discussion by introducing novel mechanistic insights and future research directions that move beyond the established triad. A paradigm shift is proposed ...
DuJiang Yang, Jiexiang Yang, Shuang Wang, GuoYou Wang   +3 more
wiley   +1 more source