Results 41 to 50 of about 5,123 (230)

Techniques and technologies for far-infrared astronomy [PDF]

, 2019
Far infrared astronomy is pivotal to our understanding of how the universe evolved, from the earliest galaxies to ongoing star and planet formation. Observations in the far infrared, however, are limited by thermal radiation in optics, and low spatial ...
University of Lethbridge. Faculty of Arts and Science, Sitwell, Geoffrey R. H.   +1 more
core  

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

α Centauri A in the far infrared*: First measurement of the temperature minimum of a star other than the Sun [PDF]

, 2013
Context. Chromospheres and coronae are common phenomena on solar-type stars. Understanding the energy transfer to these heatedatmospheric layers requires direct access to the relevant empirical data.
Carlos del Burgo Díaz
core  

The far-infrared behaviour of Herbig Ae/Be discs: Herschel PACS photometry [PDF]

, 2015
Astronomy & Astrophysics 586 (2016): A6 reproduced with permission from Astronomy & AstrophysicsHerbig Ae/Be objects are pre-main sequence stars surrounded by gas- and dust-rich circumstellar discs.
Pascual, N., G. Sandell, Mendigutia, I., Sandell, G., N. Pascual, Marshall, Jonathan P., B. Montesinos, G. Meeus, Montesinos, Benjamín, J. P. Marshall, Meeus, Gwendolyn, I. Mendigutía   +11 more
core   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

Retrievals of Protoplanetary Disk Parameters Using Thermochemical Models. I. Disk Gas Mass from Hydrogen Deuteride Spectroscopy

The Astrophysical Journal
We discuss statistical relationships between the mass of protoplanetary disks, the hydrogen deuteride (HD) line flux, and the dust spectral energy distribution (SED) determined using 3000 ProDiMo disk models. The models have 15 free parameters describing
Young Min Seo, Karen Willacy, Geoffrey Bryden, Dariusz C. Lis, Paul F. Goldsmith, Klaus M. Pontoppidan, Wing-Fai Thi   +6 more
doaj   +1 more source

Artificial intelligence–driven decoupling structure–activity relationship for lithium‐ion batteries

InfoScience, EarlyView.
Artificial intelligence can efferently accelerate the high‐throughput screening of battery materials, the analysis of multiphase mechanisms, and the precise prediction of capacity and cycle life. This review systematically summarizes the applications of machine learning (ML) in decoupling the complex structure‐activity relationships of lithium‐ion ...
Tao Wang, Yuhang Meng, Tianhao Chen, Xiangfen Jiang, Yoshio Bando, Jinjue Zeng, Xuebin Wang   +6 more
wiley   +1 more source

The Massive and Distant Clusters of WISE Survey 2: A Stacking Analysis Investigating the Evolution of Star Formation Rates and Stellar Masses in Groups and Clusters

The Astrophysical Journal
The evolution of galaxies depends on their masses and local environments; understanding when and how environmental quenching starts to operate remains a challenge.
A. Trudeau, Anthony H. Gonzalez, K. Thongkham, Kyoung-Soo Lee, Stacey Alberts, M. Brodwin, Thomas Connor, Peter R. M. Eisenhardt, Emily Moravec, Eshwar Puvvada, S. A. Stanford   +10 more
doaj   +1 more source

Submillimeter and Far-Infrared Polarimetric Observations of Magnetic Fields in Star-Forming Regions

Frontiers in Astronomy and Space Sciences, 2019
Observations of star-forming regions by the current and upcoming generation of submillimeter polarimeters will shed new light on the evolution of magnetic fields over the cloud-to-core size scales involved in the early stages of the star formation ...
Kate Pattle, Laura Fissel
doaj   +1 more source

Designing chiral organic small molecules for circularly polarized light detection via group theory

InfoMat, EarlyView.
The chiral point group determines the arrangement of the μ‐m of chiral organic small molecules, thereby influencing their chiral photoelectric properties. In particular, chiral molecules with the D2 point group can effectively align the μ‐m to be either 0° or 180°, an effective strategy for high‐performance circularly polarized light photodetectors ...
Zhenping Li, Wenkai Zhao, Jiajun Fu, Wenhan Wu, Xingshuo Chu, Zihao Xu, Yu‐Wu Zhong, Hao‐Li Zhang, Wei Ma, Guankui Long, Xiaobo Shang   +10 more
wiley   +1 more source