Results 81 to 90 of about 240,676 (167)
The Astrophysical Journal Supplement SeriesDiscovering and characterizing exoplanets at the outer edge of the transit method’s sensitivity has proven challenging owing to geometric biases and the practical difficulties associated with acquiring long observational baselines.
Paul A. Dalba +31 more
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A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data [PDF]
, 2018 We present a search for coincidence between IceCube TeV neutrinos and fast radio bursts (FRBs). During the search period from 2010 May 31 to 2016 May 12, a total of 29 FRBs with 13 unique locations have been detected in the whole sky. An unbinned maximum
Andeen, Karen
core +1 more source
A Compact Multiplanet System of Three Transiting Giant Planets around TIC 118798035
The Astrophysical Journal LettersWe report the discovery and characterization of three transiting giant planets in the TIC 118798035 system. The three planets were identified as transiting candidates from data of the TESS mission and confirmed with ground-based photometric transit ...
Rafael Brahm +22 more
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How Are the Abnormally Hot Chromosphere and Corona Heated by the Solar Magnetic Fields?
The Astrophysical JournalThe corona is a structure possessed by stars, including the Sun. The abnormal heating of the solar corona and chromosphere is one of the greatest mysteries in modern astronomy.
K. J. Li +5 more
doaj +1 more source
The Astrophysical Journal LettersTransit timing variations (TTVs) are observed for exoplanets at a range of amplitudes and periods, yielding an ostensibly degenerate forest of possible explanations.
Daniel A. Yahalomi +3 more
doaj +1 more source
Star formation rates as a function of galaxy mass [PDF]
Correlations were found between the colors and absolute magnitudes of spiral galaxies. Using optical and/or near IR (1.6 micron) colors, it was found that lower luminosity spirals are systematically bluer than higher luminosity spirals.
Romanishin, W.
core +1 more source
Physical Review Physics Education ResearchWe investigate the multilingual and multimodal performance of a large language model-based artificial intelligence (AI) system, GPT-4o, using a diverse set of physics concept inventories spanning multiple languages and subject categories. The inventories,
Gerd Kortemeyer +4 more
doaj +1 more source
A Ground-based Transit Observation of the Long-period Extremely Low-density Planet HIP 41378 f
The Astronomical JournalWe present a ground-based transit detection of HIP 41378 f, a long-period ( P = 542 days), extremely low-density (0.09 ± 0.02 g cm ^−3 ) giant exoplanet in a dynamically complex system.
Juliana García-Mejía +27 more
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, 2011 Crawford’s uvby ß calibration method is examined for A-type stars by comparing it with the pulsational variations of the observable m1, c1 and MV for the δ Scuti star FG Vir. The fit between the calibration values of m1 and MV and the respective measurements for FG Vir are tested as a function of temperature based on 3068 4-colour values taken at the ...
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