Results 21 to 30 of about 16,023 (53)
The Cassiopeia Filament: A Blown Spur of the Local Arm
The Astronomical Journal, 2022 We present wide-field and high-sensitivity CO(1–0) molecular line observations toward the Cassiopeia region, using the 13.7 m millimeter telescope of the Purple Mountain Observatory.
Xuepeng Chen +14 more
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TOI-1075 b: A Dense, Massive, Ultra-short-period Hot Super-Earth Straddling the Radius Gap
The Astronomical Journal, 2023 Populating the exoplanet mass–radius diagram in order to identify the underlying relationship that governs planet composition is driving an interdisciplinary effort within the exoplanet community.
Zahra Essack +31 more
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An Injection System for the CHIME/FRB Experiment
The Astronomical Journal, 2023 Dedicated surveys searching for fast radio bursts (FRBs) are subject to selection effects that bias the observed population of events. Software injection systems are one method of correcting for these biases by injecting a mock population of synthetic ...
Marcus Merryfield +21 more
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Simultaneous Six-way Observations from the Navy Precision Optical Interferometer
The Astronomical Journal, 2023 We measured the angular diameters of six stars using the six-element observing mode of the Navy Precision Optical Interferometer (NPOI) for the first time since the early 2000s.
Ellyn K. Baines +9 more
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Interstellar Polarization Survey. II. General Interstellar Medium
The Astronomical Journal, 2023 Magnetic fields permeate the entire Galaxy and are essential to, for example, the regulation of several stages of the star formation process and cosmic-ray transportation.
M. J. F. Versteeg +6 more
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An Investigation of Open Clusters Berkeley 68 and Stock 20 Using CCD UBV and Gaia DR3 Data
The Astronomical Journal, 2023 We performed detailed photometric and astrometric analyses of the open star clusters Berkeley 68 and Stock 20. This was based on ground-based CCD UBV photometric data complemented by space-based Gaia Data Release 3 (DR3) photometry and astrometry.
Talar Yontan
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The Astronomical Journal, 2023 We investigate the variation in the mid-infrared spectral energy distributions of 373 low-redshift ( z < 0.4) star-forming galaxies, which reflects a variety of polycyclic aromatic hydrocarbon (PAH) emission features.
Hyunjin Shim +11 more
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Practical Statistics for the Voids Between Galaxies [PDF]
Serbian Astronomical Journal, 2010 The voids between galaxies are identified withthe volumes of the Poisson Voronoi tessellation.Two new survival functions for the apparent radii of voids are derived. The sectional normalized area ofthe Poisson Voronoi tessellation is modelledby the Kiang
Zaninetti, L.
doaj
The Astronomical Journal, 2023 Classification of galaxy morphology is a challenging but meaningful task for the enormous amount of data produced by the next-generation telescope.
GuanWen Fang +10 more
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The Astronomical Journal, 2022 Population III stars were the first stars to form after the Big Bang and are believed to have made the earliest contribution to the metal content of the universe beyond the products of the Big Bang nucleosynthesis.
Mikaela M. Larkin +2 more
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