Results 51 to 60 of about 31,725 (205)

Discovery of a Bow-shock Nebula Around the Z Cam-type Cataclysmic Variable SY Cancri

The Astronomical Journal
We report the serendipitous discovery of a bow-shock nebula around the cataclysmic variable (CV) SY Cancri. In addition, SY Cnc lies near the edge of a faint H α -emitting nebula with a diameter of about $15^{\prime} $ .
Howard E. Bond, Calvin Carter, David F. Elmore, Peter Goodhew, Dana Patchick, Jonathan Talbot   +5 more
doaj   +1 more source

AD Mensae: a dwarf nova in the period gap

, 2006
AD Men was classified as a probable long-period dwarf nova based on its long-term variability. Recent spectroscopic data instead suggested a short-period system. With the here presented observations we aim at clarifying its nature.
Beuermann, C. Tappert, Claret, Downes, Downes, Downes, Harrison, Harrison, Horne, L. Schmidtobreick, McClintock, Osborne, Osborne, Patterson, Rappaport, Ritter, Scargle, Schwarzenberg-Czerny, Spruit, Stolz, Zwitter   +20 more
core   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

Two More Bow Shocks and Off-center Hα Nebulae Associated with Nova-like Cataclysmic Variables

The Astronomical Journal
We report discoveries of bow-shock nebulae, seen in H α and [O iii ] λ 5007, around two cataclysmic variables (CVs): LS Pegasi and ASASSN-V J205457.73+515731.9 (ASASJ2054).
Howard E. Bond, Calvin Carter, Eric Coles, Peter Goodhew, Dana Patchick, Jonathan Talbot, Gregory R. Zeimann   +6 more
doaj   +1 more source

CCD Photometry of a Newly Confirmed SU UMa-Type Dwarf Nova, NSV 4838

, 2009
We present time-resolved CCD photometry of a dwarf nova NSV 4838 (UMa 8, SDSS J102320.27+440509.8) during the 2005 June and 2007 February outburst. Both light curves showed superhumps with a mean period of 0.0699(1) days for the 2005 outburst and 0 ...
Arao, Yoshihiro, Imada, Akira, Kato, Taichi, Kodama, Kie, Maehara, Hiroyuki, Matsuo, Takeshi, Moritani, Yuuki, Nakajima, Kazuhiro, Nogami, Daisaku, Oizumi, Shota, Omodaka, Toshihiro, Pietz, Johen, Sugiyasu, Kei, Sumiyoshi, Masanao, Suzuki, Miho, Tanada, Shunsuke, Yamamoto, Hiroyuki, Yanagisawa, Kenshi, Yasuda, Tatsuki   +18 more
core   +1 more source

Light‐Driven Reconfigurable Logic in a Monolithic Perovskite Device via Nonlinear Photoresponse Switching

Advanced Materials, EarlyView.
This study demonstrates a monolithic perovskite OELG device that performs all eight logic operations, including XOR and XNOR, without external bias. Enabled by trap‐engineered MAPbI3:PLL and dual photogates, it achieves reconfigurable logic and parallel decoding of amplitude–frequency signals, supporting scenario‐configured logic‐level separation for ...
Dante Ahn, Youngsoo Jang, Minz Lee, WooKyung Jeon, Yohan Yoon, Heon Lee, Assa Aravindh Sasikala, Namsoo Lim, Chandran Balamurugan, Hyeonghun Kim, Gun‐Young Jung, Sooncheol Kwon, Minah Seo, Yusin Pak   +13 more
wiley   +1 more source

Minute-Cadence Observations of the LAMOST Fields with the TMTS: IV—Catalog of Cataclysmic Variables from the First 3-yr Survey

Universe
The Tsinghua University–Ma Huateng Telescopes for Survey (TMTS) started to monitor the LAMOST plates in 2020, leading to the discovery of numerous short-period eclipsing binaries, peculiar pulsators, flare stars, and other variable objects.
Qichun Liu, Jie Lin, Xiaofeng Wang, Zhibin Dai, Yongkang Sun, Gaobo Xi, Jun Mo, Jialian Liu, Shengyu Yan, Alexei V. Filippenko, Thomas G. Brink, Yi Yang, Kishore C. Patra, Yongzhi Cai, Zhihao Chen, Liyang Chen, Fangzhou Guo, Xiaojun Jiang, Gaici Li, Wenxiong Li, Weili Lin, Cheng Miao, Xiaoran Ma, Haowei Peng, Qiqi Xia, Danfeng Xiang, Jicheng Zhang   +26 more
doaj   +1 more source

The Nova Rate in M94 (NGC 4736)

, 2010
A multi-epoch H$\alpha$ survey of the early-type spiral galaxy M94 (NGC 4736) has been completed as part of a program to establish the galaxy's nova rate.
A. W. Shafter, Alard, Coelho, de Vaucouleurs, Della Valle, Ferrarese, Gavazzi, Herrmann, Jarrett, K. A. Misselt, Kolb, Moses, Möllenhoff, Neill, Schegel, Shafter, Shafter, Shara, T. Güth, Tutukov, Waller, Warner, Williams, Yungelson   +23 more
core   +1 more source

Fully Printed Organic Electrochemical Transistors With Low‐Resistance Electrodes on Planarized 3D‐Printed Substrates

Advanced Materials Technologies, EarlyView.
This paper explores integrating organic electrochemical transistors (OECTs) with planarized 3D‐printed substrates, utilizing ironing to enhance surface suitability for printing, dispense printing for thick, low‐resistance silver electrodes, and inkjet printing for semiconductor deposition.
Mohamad Kannan Idris, Ali Eskandari, Saumik Dey Shovan, Gerd Grau   +3 more
wiley   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

Advanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira, Andreia Araújo, Elvira Fortunato, Rodrigo Martins, Marta C. Corvo, Emanuel Carlos   +5 more
wiley   +1 more source