Results 121 to 130 of about 87,580 (344)

SDSS J100711.74+193056.2: A Candidate Common Motion Substellar Companion to the Nearest B-type Star Regulus

The Astronomical Journal
The L9 dwarf SDSS J100711.74+193056.2 is situated 7 $\mathop{.}\limits^{^\circ }$ 5 north of the nearest B-type star Regulus ( d  = 24.3 ± 0.2 pc), part of a stellar quadruplet.
Eric E. Mamajek, Adam J. Burgasser
doaj   +1 more source

Purple dwarfs: New L subdwarfs from UKIDSS and SDSS

EPJ Web of Conferences, 2013
The first L subdwarf was a discovered only ten years ago. Less than ten L subdwarfs been published in the literature to date. Metal-poor ultracool atmospheres has not been well understood.
Marocco F., Day-Jones A.C., Jones H.R.A., Burningham B., Pinfield D.J., Zhang Z.H., Gomes J., Galvez-Ortiz M.C.   +7 more
doaj   +1 more source

Towards Robust Atmospheric Retrievals for Cloudy L Dwarfs: Tests on T Dwarf Spectra

, 2021
Retrieving atmospheric properties from spectra is the only method through which properties of brown dwarf atmospheres can be determined since in situ measurements are impossible at astronomical distances. But to date, retrieval frameworks with clouds have not been robustly verified for accuracy despite the fact that clouds are abundant in cooling brown
Rowland, Melanie, Morley, Caroline, Line, Michael   +2 more
openaire   +1 more source

Gut Bacterium Lysinibacillus Sphaericus Exacerbates Aspirin‐induced Intestinal Injury by Production of Carboxylesterase EstB

Advanced Science, EarlyView.
Schematic overview illustrating the detrimental role of gut microbiota in aspirin‐induced intestinal injury. L. sphaericus and its secreted carboxylesterase EstB are identified as key drivers that catalyze aspirin hydrolysis into salicylic acid, thereby exacerbating intestinal injury. Inhibition of EstB by the dietary compound flavanomarein effectively
Zeyu Zhao, Qing Li, Xiaowu Bai, Ertao Zhai, Weigang Dai, Yan Qian, Tianhao Zhang, Zhixin Huang, Ziyu Huang, Fangang Meng, Jianhui Chen, Tao Zuo, Shirong Cai, Risheng Zhao   +13 more
wiley   +1 more source

The Sonora Substellar Atmosphere Models. III. Diamondback: Atmospheric Properties, Spectra, and Evolution for Warm Cloudy Substellar Objects

The Astrophysical Journal
We present a new grid of cloudy atmosphere and evolution models for substellar objects. These models include the effect of refractory cloud species, including silicate clouds, on the spectra and evolution.
Caroline V. Morley, Sagnick Mukherjee, Mark S. Marley, Jonathan J. Fortney, Channon Visscher, Roxana Lupu, Ehsan Gharib-Nezhad, Daniel Thorngren, Richard Freedman, Natasha Batalha   +9 more
doaj   +1 more source

Amelioration of Post‐Stroke Edema and Microcirculatory Dysfunction via Targeted AQP4 Inhibition While Preserving the Glymphatic System

Advanced Science, EarlyView.
Compared to untargeted therapy, the targeted nanocarrier, Angiopep‐2‐conjugated Lipid Nanoparticle (A‐LNP) loaded with TGN‐020 (TGN), selectively accumulated in stroke‐injured regions. It suppressed local aquaporin‐4 (AQP4) overexpression, thereby alleviating cerebral edema and hypoperfusion while preserving global glymphatic clearance.
Lei Jin, Zeyu Yang, Boyang Wei, Yu Wu, Longxiang Li, Jiaming Zhou, Xin Zhang, Fa Jin, Shixing Su, Yanchao Liu, Ran Li, Shenquan Guo, Xingwu Liu, Yu Cai, Hong Liu, Min Chen, Wenchao Liu, Chuanzhi Duan, Xifeng Li   +18 more
wiley   +1 more source

Maximum Reduced Proper Motion Method: Detection of New Nearby Ultracool Dwarfs

, 2011
In this paper, we describe how to use the Maximum Reduced Proper Motion method (Phan-Bao et al.
Bertin, Bessell, Bouy, Bouy, Burgasser, Cioni, Cruz, Cruz, Deacon, Delfosse, Fluks, Kendall, Kirkpatrick, Knapp, Lawrence, Leggett, Lodieu, Lépine, Martín, Martín, Phan-Bao, Phan-Bao, Phan-Bao, Pojmanski, Reid, Reid, Reid, Scholz, Thé, York   +29 more
core   +1 more source

Chemical and Isotopic Homogeneity between the L Dwarf CD-35 2722 B and Its Early M Host Star

The Astrophysical Journal
CD-35 2722 B is an L dwarf companion to the nearby, ∼50–200 Myr old M1 dwarf CD-35 2722 A. We present a detailed analysis of both objects using high-resolution ( R ∼ 35,000) K -band spectroscopy from the Keck Planet Imager and Characterizer combined with
Gavin Wang, Jerry W. Xuan, Darío González Picos, Zhoujian Zhang, Yapeng Zhang, Dimitri Mawet, Chih-Chun Hsu, Jason J. Wang, Geoffrey A. Blake, Jean-Baptiste Ruffio, Katelyn Horstman, Ben Sappey, Yinzi Xin, Luke Finnerty, Daniel Echeverri, Nemanja Jovanovic, Ashley Baker, Randall Bartos, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Gregory W. Doppmann, Michael P. Fitzgerald, Joshua Liberman, Ronald A. López, Evan Morris, Jacklyn Pezzato-Rovner, Caprice L. Phillips, Tobias Schofield, Andrew Skemer, J. Kent Wallace, Ji Wang   +31 more
doaj   +1 more source

The L to T Dwarf Transition

, 2004
4 pages, 6 figures, proceedings from the 13th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Hamburg, Germany, July 2004, ESA-SP, in ...
Marley, M. S., Cushing, M. C., Saumon, D.   +2 more
openaire   +2 more sources

Gut Microbe‐Driven Resistance Mechanisms in Propylea Japonica: Insights from Horizontal Gene Transfer and Oxidative Phosphorylation

Advanced Science, EarlyView.
Acinetobacter regulates dinotefuran tolerance in Propylea japonica by mediating the expression of the horizontally transferred gene PjDUF1. Abstract Insect–microbial symbiont relationships are widespread in nature and often involve lateral gene transfer.
Ningbo HuangFu, Xiangzhen Zhu, Zhijuan Tang, Li Wang, Kaixin Zhang, Dongyang Li, Jichao Ji, Jinjie Cui, Zhaojiang Guo, Junyu Luo, Xueke Gao   +10 more
wiley   +1 more source