Results 81 to 90 of about 87,580 (344)

Contemporaneous Observations of Hα Luminosities and Photometric Amplitudes for M Dwarfs

The Astronomical Journal, 2023
While many M dwarfs are known to have strong magnetic fields and high levels of magnetic activity, we are still unsure about the properties of their starspots and the origin of their magnetic dynamos.
Aylin García Soto, Elisabeth R. Newton, Stephanie T. Douglas, Abigail Burrows, Aurora Y. Kesseli   +4 more
doaj   +1 more source

Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum

Advanced Optical Materials, EarlyView.
By infusing black dye into spherical shells of polymerized cholesteric liquid crystal, blue, green and red omnidirectional retroreflectors of circularly polarized structural color are achieved. They can be laid out on arbitrary surfaces without any need for index matching binder to define graphical information for robots and Augmented Reality devices ...
Deniz Işınsu Avşar, Jan P. F. Lagerwall   +1 more
wiley   +1 more source

AKARI Observations of Brown Dwarfs I.: CO and CO_2 Bands in the Near-Infrared Spectra

, 2010
Near-infrared medium-resolution spectra of seven bright brown dwarfs are presented. The spectra were obtained with the Infrared Camera (IRC) on board the infrared astronomical satellite AKARI, covering 2.5--5.0 um with a spectral resolution of ...
Ackerman, Allende Prieto, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burrows, Cushing, Cushing, Fan, Freedman, Geballe, Geballe, Golimowski, Griffith, Hubeny, Issei Yamamura, Justtanont, Knapp, Leggett, Leggett, Lorente, Mainzer, Marley, McLean, McLean, Murakami, Nakajima, Noll, Noll, Ohyama, Onaka, Oppenheimer, Patten, Roellig, Rothman, Saumon, Saumon, Saumon, Saumon, Stephens, Takashi Tsuji, Toshihiko Tanabé, Tsuji, Tsuji, Tsuji, Tsuji, Tsuji, Tsuji, Vrba   +50 more
core   +1 more source

A Large Sample of JWST/NIRSpec Brown Dwarfs: New Distant Discoveries

The Astrophysical Journal Supplement Series
Brown dwarfs are essential probes of stellar and planetary formation, yet their low luminosities pose challenges for detection at large Galactic distances.
Zhijun Tu, Shu Wang, Xiaodian Chen, Jifeng Liu   +3 more
doaj   +1 more source

The Hawaii Infrared Parallax Program. VI. The Fundamental Properties of 1000+ Ultracool Dwarfs and Planetary-mass Objects Using Optical to Mid-infrared Spectral Energy Distributions and Comparison to BT-Settl and ATMO 2020 Model Atmospheres

The Astrophysical Journal, 2023
We derive the bolometric luminosities ( L _bol ) of 865 field-age and 189 young ultracool dwarfs (spectral types M6–T9, including 40 new discoveries presented here) by directly integrating flux-calibrated optical to mid-infrared (MIR) spectral energy ...
Aniket Sanghi, Michael C. Liu, William M. J. Best, Trent J. Dupuy, Robert J. Siverd, Zhoujian Zhang, Spencer A. Hurt, Eugene A. Magnier, Kimberly M. Aller, Niall R. Deacon   +9 more
doaj   +1 more source

RNA-Seq and iTRAQ Reveal the Dwarfing Mechanism of Dwarf Polish Wheat (Triticum polonicum L.) [PDF]

International Journal of Biological Sciences, 2016
The dwarfing mechanism of Rht-dp in dwarf Polish wheat (DPW) is unknown. Each internode of DPW was significantly shorter than it in high Polish wheat (HPW), and the dwarfism was insensitive to photoperiod, abscisic acid (ABA), gibberellin (GA), cytokinin (CK), auxin and brassinolide (BR). To understand the mechanism, three sets of transcripts, DPW, HPW,
Wang, Yi, Xiao, Xue, Wang, Xiaolu, Zeng, Jian, Kang, Houyang, Fan, Xing, Sha, Lina, Zhang, Haiqin, Zhou, Yonghong   +8 more
openaire   +2 more sources

The Future of Research in Cognitive Robotics: Foundation Models or Developmental Cognitive Models?

Advanced Robotics Research, EarlyView.
Research in cognitive robotics founded on principles of developmental psychology and enactive cognitive science would yield what we seek in autonomous robots: the ability to perceive its environment, learn from experience, anticipate the outcome of events, act to pursue goals, and adapt to changing circumstances without resorting to training with ...
David Vernon
wiley   +1 more source

Discovery of the Remarkably Red L/T Transition Object VHS J183135.58-551355.9

The Astronomical Journal
We present the discovery of VHS J183135.58−551355.9 (hereafter VHS J1831−5513), an L/T transition dwarf identified as a result of its unusually red near-infrared colors ( J − K _S = 3.633 ± 0.277 mag; J − W 2 = 6.249 ± 0.245 mag) from the VISTA ...
Thomas P. Bickle, Adam C. Schneider, Jonathan Gagné, Jacqueline K. Faherty, Austin Rothermich, Johanna M. Vos, Genaro Suárez, J. Davy Kirkpatrick, Aaron M. Meisner, Marc J. Kuchner, Adam J. Burgasser, Federico Marocco, Sarah L. Casewell, Dan Caselden, Daniella C. Bardalez Gagliuffi, The Backyard Worlds: Planet 9 Collaboration   +15 more
doaj   +1 more source

Electronic Nose for Indoor Mold Detection and Identification

Advanced Sensor Research, EarlyView.
This study explores the potential of a SnO2 nanowire‐based chemiresistive electronic nose not only to detect but also to identify two common indoor mold species, Stachybotrys chartarum and Chaetomium globosum on two different growth substrates. In a laboratory setup, the electronic nose displays high classification performance using optimized linear ...
Hankun Yang, Martin Sommer, Stephanie Bauer, Uli Lemmer   +3 more
wiley   +1 more source

Directing the Mobility of Guest Molecules in Nanoporous Materials by Linearly Polarized Light

Advanced Science, EarlyView.
The polarization of light is introduced as a further parameter to dynamically and reversibly control the properties of a photoresponsive nanoporous material. It was used to control the mobility of the guest molecules in the pores of a metal–organic framework.
Taher Al Najjar, Chun Li, Yunzhe Jiang, Anna Mauri, Modan Liu, Abhinav Chandresh, Anemar Bruno Kanj, Dragos Mutruc, Wolfgang Wenzel, Stefan Hecht, Mariana Kozlowska, Lars Heinke   +11 more
wiley   +1 more source