Results 131 to 140 of about 266,062 (301)

The emission line galaxy TV Reticuli [PDF]

Astronomy & Astrophysics, 2006
TV Ret was classified as a cataclysmic variable due to an outburst observed in 1977. We intended to confirm this classification and derive some basic properties of the system. Low resolution optical spectra were obtained for a spectral classification of the object. We find that the object is not a cataclysmic variable but an emission line galaxy with a
Schmidtobreick, L., Tappert, C., Horst, H., Saviane, I., Lidman, C.   +4 more
openaire   +2 more sources

Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization

Advanced Materials, Volume 38, Issue 7, 2 February 2026.
High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung, Sehee Yang, Sanghyuk Park, Shin‐Hyun Kim   +3 more
wiley   +1 more source

An Hα Impression of Lyα Galaxies at z ≃ 6 with Deep JWST/NIRCam Imaging

The Astrophysical Journal Letters, 2023
We present a study of seven spectroscopically confirmed (Ly α -emitting) galaxies at redshift z ≃ 6 using the JWST/NIRCam imaging data. These galaxies, with a wide range of Ly α luminosities, were recently observed in a series of NIRCam broad and medium ...
Yuanhang Ning, Zheng Cai, Linhua Jiang, Xiaojing Lin, Shuqi Fu, Daniele Spinoso   +5 more
doaj   +1 more source

Outlying HII Regions in HI-Selected Galaxies [PDF]

, 2009
We present results from the first systematic search for outlying HII regions, as part of a sample of 96 emission-line point sources (referred to as ELdots - emission-line dots) derived from the NOAO Survey for Ionization in Neutral Gas Galaxies (SINGG ...
Arnaboldi, B. Koribalski, Bland-Hawthorn, Bland-Hawthorn, Boissier, Boquien, Bouwens, C. Kehrig, D. A. Thilker, D. J. Hanish, DeGraaff, E. V. Ryan-Weber, Ferguson, G. R. Meurer, Gerhard, Gil de Paz, Gil de Paz, H. C. Ferguson, Irwin, J. Bland-Hawthorn, J. H. Kim, J. K. Werk, K. C. Freeman, Koribalski, M. A. Dopita, M. A. Zwaan, M. E. Putman, M. J. Drinkwater, M. Meyer, M. S. Oey, M. T. Doyle, Mendes de Oliveira, Meurer, Meurer, Morrissey, Mould, O. I. Wong, Oey, Oosterloo, Osterbrock, P. M. Knezek, R. C. Kennicutt, R. C. Smith, Ryan-Weber, Ryan-Weber, Sakai, Santiago-Figueroa, Schlegel, T. M. Heckman, Thilker, Thilker, V. A. Kilborn, Walter, Werk   +53 more
core   +2 more sources

Bursty Precipitation of Relativistic Electrons Unveiled by CIRBE/REPTile‐2 Measurements and Their Physical Implications

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Energetic electron precipitation plays a pivotal role in shaping Earth's radiation belt dynamics and drives significant physical and chemical changes in the upper atmosphere. However, the detailed mechanisms governing the loss of relativistic electrons have remained unclear, largely due to the limited energy coverage and coarse resolution of ...
Zheng Xiang, Xinlin Li, Daniel N. Baker, Qianli Ma, Yang Mei, Declan O’Brien, Hong Zhao, David Brennan, Theodore Sarris, Yoshizumi Miyoshi, Yoshiya Kasahara, Takefumi Mitani, Takeshi Takashima, Michael A. Temerin   +13 more
wiley   +1 more source

Correlation between Hα Emitters and Their Cosmic Web Environment at z ∼ 1

The Astrophysical Journal
Future near-infrared spectroscopic galaxy surveys will target high-redshift emission-line galaxies (ELGs) to test cosmological models. Deriving optimal constraints from ELG clustering hinges on a robust understanding of their environmental dependence ...
Ivan Rapoport, Vincent Desjacques, Ehud Behar, Ravi K. Sheth   +3 more
doaj   +1 more source

Diversity and Ecological Potentials of Marine Viruses Inhabiting Continental Shelf Seas

Advanced Science, Volume 13, Issue 1, 5 January 2026.
To the best of the knowledge, this study provides the largest viral genome dataset from a continental shelf sea. It reveals that over half of vOTUs are novel, highlighting the remarkable viral novelty in the eastern continental shelf seas of China (ECSSC).
Xiaoyue Guo, Yantao Liang, Chen Gao, Hao Yu, Meiwen Wang, Hongbing Shao, Yeqing Yang, David Paez‐Espino, Andrew McMinn, Min Wang   +9 more
wiley   +1 more source

Comparison of Theoretical Starburst Photoionisation Models for Optical Diagnostics [PDF]

, 2019
We study and compare different examples of stellar evolutionary synthesis input parameters used to produce photoionisation model grids using the MAPPINGS V modelling code.
Byler, Nell, D'Agostino, Joshua J., Groves, Brent, Kewley, Lisa J., Leitherer, Claus, Nicholls, David, Stanway, Elizabeth R., Sutherland, Ralph S.   +7 more
core   +2 more sources

SHOCKED POSTSTARBUST GALAXY SURVEY. I. CANDIDATE POST-STARBUST GALAXIES WITH EMISSION LINE RATIOS CONSISTENT WITH SHOCKS [PDF]

, 2016
There are many mechanisms by which galaxies can transform from blue, star-forming spirals, to red, quiescent early-type galaxies, but our current census of them does not form a complete picture.
K. Alatalo, S. Cales, J. Rich, P. Appleton, L. Kewley, M. Lacy, L. Lanz, A. Medling, K. Nyland   +8 more
semanticscholar   +1 more source

Mid-infrared Ensemble Variability of Broad-line and Narrow-line Seyfert 1 Galaxies

The Astrophysical Journal
We utilized multiepoch archival data from the Wide-field Infrared Survey Explorer to compare the variability at 3.4 μ m (W1 band) and 4.6 μ m (W2 band) of broad-line Seyfert 1 (BLSy1) galaxies and narrow-line Seyfert 1 (NLSy1) galaxies by employing the ...
Zhipeng Hu, Lisheng Mao
doaj   +1 more source