-
181
Detecting the Black Hole Candidate Population in M51’s Young Massive Star Clusters: Constraints on Accreting Intermediate-mass Black Holes
Published 2025-01-01“…Jansky Very Large Array to search for any evidence of accreting black holes in young massive star clusters in the nearby galaxy M51. We find that of 44 bright ( L _X > 10 ^38 erg s ^−1 ) X-ray point sources in M51, 24 had probable matches to objects including possible associated star clusters in the HST Legacy Extragalactic UV Survey catalog, seven of which were classified as contaminants (background galaxies or foreground stars). …”
Get full text
Article -
182
The JADES Transient Survey: Discovery and Classification of Supernovae in the JADES Deep Field
Published 2025-01-01“…We also found that two z ∼ 16 galaxy candidates from the first imaging epoch were actually transients that faded in the second epoch, illustrating the possibility that moderate/high-redshift SNe could mimic high-redshift dropout galaxies.…”
Get full text
Article -
183
Astronomical Signatures of Dark Matter
Published 2014-01-01“…They are very high velocities of individual galaxies within clusters of galaxies, higher than expected rotation rates of stars in the outer regions of galaxies, 21 cm line studies indicative of increasing mass to light ratios with radius in the halos of spiral galaxies, hot gaseous X-ray emitting halos around many elliptical galaxies, and clusters of galaxies requiring a much larger component of unseen mass for the hot gas to be bound. …”
Get full text
Article -
184
Modified Newtonian Dynamics: A Falsification of Cold Dark Matter
Published 2009-01-01“…The fact that it works very well on the scale of galaxies is problematic for cold dark matter (CDM). …”
Get full text
Article -
185
Exact Relativistic Magnetized Haloes around Rotating Disks
Published 2015-01-01“…The study of the dynamics of magnetic fields in galaxies is one of important problems in formation and evolution of galaxies. …”
Get full text
Article -
186
The Roles of Cultural Astronomy in Kigezi Rigion.
Published 2024“…Astronomy is a science discipline that studies virtually everything beyond the earth, which includes studying planets, stars, galaxies, nebulae, and the universe at large. The purpose of this study was to explore the roles of cultural astronomy in Kigezi sub-region.…”
Get full text
Thesis -
187
The Extraordinary Long-lasting Infrared Echo of PS16dtm Reveals an Extremely Energetic Nuclear Outburst
Published 2025-01-01Get full text
Article -
188
-
189
-
190
The Natural Science Underlying Big History
Published 2014-01-01“…Nature’s many varied complex systems—including galaxies, stars, planets, life, and society—are islands of order within the increasingly disordered Universe. …”
Get full text
Article -
191
Thermodynamics of the substantial universe
Published 2024-06-01“…The main reason for the redshift of spectral lines of light from distant stars and galaxies is not the expansion of the substantial Universe, but its clouds of gas and dust, which reduce the energy of photons.…”
Get full text
Article -
192
A Numerical Convolution Representation of Potential for a Disk Surface Density in 3D
Published 2014-01-01“…This study presents a numerical convolution representation of a potential induced from a disk of surface density, which has often been investigated in the center region of galaxies. The advantage of this representation is to release the softening length for the N-body method and artificial boundary conditions for the spectral methods. …”
Get full text
Article -
193
Evaluation of the Single-component Thermal Dust Emission Model in Cosmic Microwave Background Experiments
Published 2025-01-01Get full text
Article -
194
On the Jeans Theorem and the “Tolman–Oppenheimer–Volkoff Equation” in R2 Gravity
Published 2016-01-01“…Corda, Mosquera Cuesta, and Lorduy Gòmez have shown that spherically symmetric stationary states can be used as a model for galaxies in the framework of the linearized R2 gravity. …”
Get full text
Article -
195
Exponential Self-Organization and Moore’s Law: Measures and Mechanisms
Published 2017-01-01“…Examples are the formation of elementary particles from pure energy, the formation of atoms from particles, the formation of stars and galaxies, and the formation of molecules from atoms, of organisms, and of the society. …”
Get full text
Article -
196
Scheduling in Targeted Transient Surveys and a New Telescope for CHASE
Published 2010-01-01“…In particular, we present example schedules designed for a future 50 cm telescope that will expand the capabilities of the CHASE survey, which aims to detect young supernova events in nearby galaxies. We also include a brief description of the telescope and the status of the project, which is expected to enter a commissioning phase in 2010.…”
Get full text
Article -
197
What Rogue Hydrogen Clouds Tell Us about Galactic Magnetic Fields
Published 2025-01-01“…Observations of the Milky Way and external galaxies support the idea that large-scale magnetic fields are concentrated in galactic disks, with halo magnetic fields at least an order of magnitude weaker. …”
Get full text
Article -
198
Photometric Selection of Type 1 Quasars in the XMM-LSS Field with Machine Learning and the Disk–Corona Connection
Published 2025-01-01“…We constructed our training and blind-test samples using spectroscopically identified Sloan Digital Sky Survey quasars, galaxies, and stars. We utilized the XGBoost machine learning method to select a total of 1591 quasars. …”
Get full text
Article -
199
Geometrical Distances of Extragalactic Binaries through Spectroastrometry
Published 2025-01-01“…By measuring multiple binary star systems or monitoring one binary system repeatedly, geometric distance measurements of nearby galaxies can be achieved, providing valuable insights into the Hubble tension and advancing our understanding of the Universe’s structure and evolution.…”
Get full text
Article -
200
The Hobby–Eberly Telescope Dark Energy Experiment Survey (HETDEX) Active Galactic Nuclei Catalog: The Fourth Data Release
Published 2025-01-01“…A total of 4060 (39%) of the 10,499 redshift-confirmed AGN have emission-line regions 3 σ more extended than the image quality, which could be strong outflows blowing into the outskirts of the host galaxies or ionized intergalactic medium.…”
Get full text
Article