Results 51 to 60 of about 16,605,004 (178)

Astronomy & Astrophysics (CAUCASUS)-VOLUME 2

, 2020
The second volume of the international scientific journal Astronomy & Astrophysics (Caucasus) contains the scientific works delivered as scientific reports by their authors at International Scientific Conference Modern Problems of Astrophysics – II ...
(CAUCASUS), Astronomy & Astrophysics
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Time-Domain-Based Methyl Proton NMR with Absolute Quantitation Ability for Targeted Metabolomics

, 2022
In high-throughput scenarios of targeted metabolomics, it is a significant challenge to process complex NMR spectra with severely overlapping signals produced by metabolites with similar chemical structures.
Tao Chen (75911), Denglang Zou (4777644), Liangliang He (5643407), Renwang Jiang (2888042), Mencuo La (12999670), Qiqi Wang (557078), Yulin Li (36434), Qi Wang (22418)   +7 more
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Do Neutron Star Ultraluminous X-Ray Sources Masquerade as Intermediate-mass Black Holes in Radio and X-Ray?

The Astrophysical Journal
Ultraluminous X-ray sources (ULXs) were once largely believed to be powered by super-Eddington accretion onto stellar-mass black holes, although in some rare cases, ULXs also serve as potential candidates for (sub-Eddington) intermediate-mass black holes.
Teresa Panurach, Kristen C. Dage, Ryan Urquhart, Richard M. Plotkin, Jeremiah D. Paul, Arash Bahramian, McKinley C. Brumback, Timothy J. Galvin, Isabella Molina, James C. A. Miller-Jones, Payaswini Saikia   +10 more
doaj   +1 more source

HATPI Preperihelion Time-series Photometry of the Interstellar Comet 3I/ATLAS

The Astronomical Journal
The Hungarian-made Automated Telescope PI Steradians (HATPI) is a recently commissioned time-domain facility at Las Campanas Observatory, Chile, that uses 64 wide-angle, 9.6 cm diameter lenses and back-illuminated CCDs, yielding a mosaic field-of-view of
Joel D. Hartman, Gáspár Á. Bakos, Andrés Jordán, Sarah Thiele, Zoltán Csubry, Geert Jan Talens, Attila Bódi, Sándor Pigai, István Domsa, Anthony Keyes, Vincent Suc, Adriana Gaitan, Antoine Thibault   +12 more
doaj   +1 more source

Ultradeep ATCA Imaging of 47 Tucanae Reveals a Central Compact Radio Source

The Astrophysical Journal
We present the results of an ultradeep radio continuum survey, containing ∼480 hr of observations, of the Galactic globular cluster 47 Tucanae with the Australia Telescope Compact Array.
Alessandro Paduano, Arash Bahramian, James C. A. Miller-Jones, Adela Kawka, Tim J. Galvin, Liliana Rivera Sandoval, Sebastian Kamann, Jay Strader, Laura Chomiuk, Craig O. Heinke, Thomas J. Maccarone, Stefan Dreizler   +11 more
doaj   +1 more source

Astronomy & Astrophysics (CAUCASUS)-VOLUME 3

, 2020
The III volume of Journal “Astronomy & Astrophysics (Caucasus)” was dedicated to the 110th Anniversary of Academician Eugene Kharadze. Academician Evgene Kharadze Vice - President of International Union of Astronomy (1976-82) I would like to give you
(Caucasus)”, Astronomy & Astrophysics
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Gravitational Waves and Time Domain Astronomy [PDF]

, 2012
The gravitational wave window onto the universe will open in roughly five years, when Advanced LIGO and Virgo achieve the first detections of high frequency gravitational waves, most likely coming from compact binary mergers. Electromagnetic follow-up of
Williams, Roy, Nissanke, Samaya, Centrella, Joan   +2 more
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Optimizing Convolution Direction and Template Selection for Difference Image Analysis

The Astrophysical Journal Supplement Series
Difference image analysis (DIA) is a powerful tool for studying time-variable phenomena, and has been used by many time-domain surveys. Most DIA algorithms involve matching the spatially varying point-spread function shape between science and template ...
Rodrigo Angulo, Armin Rest, William P. Blair, Jacob Jencson, David A. Coulter, Qinan Wang, Ryan J. Foley, Charles D. Kilpatrick, Xiaolong Li, Anthony L. Piro, César Rojas-Bravo   +10 more
doaj   +1 more source

Gamma-Ray Astrophysics in the Time Domain

, 2019
The last few years have seen gamma-ray astronomy maturing and advancing in the field of time-domain astronomy, utilizing source variability on timescales over many orders of magnitudes, from a decade down to a few minutes and shorter, depending on the ...
Frank Rieger, Frank M. Rieger
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Time Domain Astroinformatics

, 2023
Astronomy has entered the multi-messenger data era and Data Science has found widespread use in a large variety of applications. The exploitation of synoptic (multi-band and multi-epoch) surveys, like Rubin-LSST, requires an extensive use of automatic ...
Massimo Brescia
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