Results 71 to 80 of about 2,436 (245)

A uvbyCaHβ CCD Analysis of the Open Cluster Standard, M67, and Its Relation to NGC 752

The Astronomical Journal, 2023
Precision CCD uvbyCa H β photometry is presented of the old cluster, M67, covering one square degree with typical internal precision at the 0.005–0.020 mag level to V ∼ 17.
Bruce A. Twarog, Barbara J. Anthony-Twarog, Constantine P. Deliyannis   +2 more
doaj   +1 more source

Introgressed Variation in TaMYB7‐A1 Drives Graded Dormancy and Climate‐Adaptive Pre‐Harvest Sprouting Resistance in Wheat

Advanced Science, EarlyView.
TaMYB7‐A1 directly activates TaABI5 to enhance ABA signaling and regulate ABA‐GA homeostasis, enforcing seed dormancy. Its superior allele, derived from wild einkorn introgression, harbors a MITE insertion that elevates expression and two amino acid substitutions that enhance transcriptional activity, collectively generating graded PHS resistance for ...
Hao Wang, Dongzhi Wang, Yafei Guo, Qi Zheng, Min Zhang, James Simmonds, Jian Hou, Xuemei Liu, Xuelei Lin, Xiaomin Bie, Xiansheng Zhang, Xiaohui Li, Yuan Chen, Xueyong Zhang, Cristobal Uauy, Fei Lu, Chengcai Chu, Zhixi Tian, Jun Xiao   +18 more
wiley   +1 more source

J band Variability of M Dwarfs in the WFCAM Transit Survey [PDF]

, 2012
We present an analysis of the photometric variability of M dwarfs in the WFCAM Transit Survey. Although periodic lightcurve variability in low mass stars is generally dominated by photospheric star spot activity, M dwarf variability in the J band has not
Carlos del Burgo Díaz
core  

Parallaxes and infrared photometry of three Y0 dwarfs [PDF]

, 2017
International audienceWe have followed up the three Y0 dwarfs WISEPA J041022.71+150248.5, WISEPA J173835.53+273258.9 and WISEPC J205628.90+145953.3 using the United Kingdom Infrared Telescope Wide Field Camera. We find parallaxes that are more consistent
F. Marocco, H. R. A. Jones, Jane E. Morrison, SMART, Richard Laurence, Apai, Dániel, Leggett, S., D. S. Amundsen, D. Pinfield, Leggett, S. K., Leggett, S.K., Apai, D'aniel, Tremblin, Pascal, P. Tremblin, Tremblin, P., J. Davy Kirkpatrick, Amundsen, D., S., Jones, H. R. A., Amundsen, D., Jones, H., Morrison, Jane, Amundsen, D. S., Smart, R., S. K. Leggett, Pinfield, D., R. L. Smart, D'aniel Apai, Morrison, Jane E., Marocco, F., Kirkpatrick, J. Davy, Smart, R. L.   +29 more
core   +1 more source

The Sonora Substellar Atmosphere Models. VI. Red Diamondback: Extending Diamondback with SPHINX for Brown Dwarf Early Evolution

The Astrophysical Journal
We extend the Sonora Diamondback brown dwarf evolution models to higher effective temperatures to treat the evolution of younger, higher-mass objects. Due to an upper temperature limit of T _eff  =  2400 K in the original Sonora Diamondback model grid ...
C. Evan Davis, Jonathan J. Fortney, Aishwarya Iyer, Sagnick Mukherjee, Caroline V. Morley, Mark S. Marley, Michael Line, Philip S. Muirhead   +7 more
doaj   +1 more source

Crossmatching of high-proper motion L, T, and Y brown dwarfs with large photometric surveys

Open Astronomy, 2023
L, T, and Y brown dwarf (BD) exploration is a topical issue. First, the transition boundary between planets and BDs is not fully understood yet. Second, there is a phenomenon called the L/T-transition.
Avdeeva Aleksandra S., Karpov Sergey V., Malkov Oleg Yu.   +2 more
doaj   +1 more source

Friend, Not Foe: Lowered Tissue Reactivity to Long‐Term Polyimide Implants

Advanced Science, EarlyView.
The choice of optimal neural probe designs remains a major challenge in the field of neurotechnology. This study investigated the biocompatibility of several probe variations, including material, thickness, width, and implantation strategy. It highlights the clear advantage of soft polyimide probes over stiff silicon probes for better device ...
Corinne Orlemann, Laura M. De Santis, Paul Neering, Christian Boehler, Kirti Sharma, Arno Aarts, Tobias Holzhammer, Rik J. J. van Daal, Patrick Ruther, Maria Asplund, Roxana N. Kooijmans, Pieter R. Roelfsema   +11 more
wiley   +1 more source

The discovery of y dwarfs using data from the wide-field infrared survey explorer (WISE) [PDF]

, 2011
We present the discovery of seven ultracool brown dwarfs identified with the Wide-field Infrared Survey Explorer (WISE). Near-infrared spectroscopy reveals deep absorption bands of H[subscript 2]O and CH[subscript 4] that indicate all seven of the brown ...
Gelino, Christopher R., D. Saumon, Richard S. Freedman, Roger L. Griffith, A. Mainzer, Adam J. Burgasser, Eisenhardt, Peter R., Michael C. Cushing, Robert A. Simcoe, Christopher R. Gelino, Cushing, Michael C., Peter R. Eisenhardt, Marley, Mark S., Burgasser, Adam J., Prato, Lisa A., Eisenhardt, P. R., Griffith, Roger L., Marsh, Kenneth A., Lisa A. Prato, Edward L. Wright, Beichman, Charles A., J. Davy Kirkpatrick, Freedman, Richard S., Wright, Edward L., Mark S. Marley, Skrutskie, Michael F., Mainzer, A., Charles A. Beichman, Kenneth A. Marsh, Simcoe, Robert A., Saumon, D., Kirkpatrick, J. Davy, Michael F. Skrutskie   +32 more
core   +1 more source

A Virus‐Inducible E3–RLCK–MADS Module Coordinates Suppression of Plant Immunity and Fertility in Rice

Advanced Science, EarlyView.
ABSTRACT Viruses often hijack host developmental programs to promote infection, but the mechanistic links between reproductive regulation and antiviral immunity remain incompletely understood. Here, we identify a virus‐triggered hierarchical degradation cascade that links antiviral immunity and fertility regulation in rice. We show that the rice grassy
Yuansheng Wu, Fengling Wu, Shiting Huang, Denglu Yang, Xin Lei, Xue Zhang, Na Liu, Peng Gan, Chuan Li, Jie Zhang, Ming Wu, Qingxiao Jia, Shanshan Zhao, Jianguo Wu   +13 more
wiley   +1 more source

Spectrometric composition of nearby K dwarfs

, 2006
We have obtained relatively high resolution spectra of Northern hemisphere K dwarfs. This is the first spectrometric project dedicated only to K dwarfs. Earlier studies have concentrated on more massive F and G dwarfs.
Y. J. Liu, G. Zhao, J. R. Shi, E. Kotoneva   +3 more
core   +1 more source