Academic Articles & Research Papers

Modules for Experiments in Stellar Astrophysics (MESA)

Release versions of Modules for Experiments in Stellar Astrophysics (MESA) in ZIP format....

Applications of Electrodynamics in Theoretical Physics and Astrophysics

Treats certain problems and methods of theoretical physics and astrophysics which are associated with microscopic and macroscopic electrodynamics and material concerning the theory of transition radiation and transition scattering....

Essential Astrophysics

Astrophysics for Physicists

1. Introduction 2. Interaction of radiation with matter 3. Stellar astrophysics I: basic theoretical ideas and observational data 4. Stellar astrophysics II: nucleosynthesis and other advanced topics 5. End states of stellar collapse 6. Our...

On Relativistic Astrophysics.

In this paper we have attempted to discuss the relation of massive highly condensed objects to astrolysics in general, rather than only to the radio-source problem. Because situations in which general lativistic effects play a dominant role...

Problems in Astrophysics

Astronomy and Astrophysics

A star is by definition a celestial object, bound by self-gravity, in which thermal energy is produced from a nonthermal source (nuclear reactions) and is radiated outward from the object’s surface to its surroundings. We shall extend this ...

Astronomy and astrophysics

Fundamentals of Neutrino Physics and Astrophysics

This book deals with neutrino physics and astrophysics — a field in which some of the most exciting recent developments in particle physics, astrophysics, and cosmology took place. The book discusses all the topics vital to the understandin...

Pattern Recognition and Neural Networks

This 1996 book is a reliable account of the statistical framework for pattern recognition and machine learning. With unparalleled coverage and a wealth of case-studies this book gives valuable insight into both the theory and the enormously...

Galactic outflows and star-formation quenching: a JWST perspective.

The Messy Nature of Fiber Spectra: Star–Quasar Pairs Masquerading as Dual Type 1 AGNs

Theoretical studies predict that the most significant growth of supermassive black holes (SMBHs) occurs in late-stage mergers, coinciding with the manifestation of dual active galactic nuclei (AGNs), and both major and minor mergers are exp...

String with deformed dispersion relation

Abstract We study string theory with momentum living on de Sitter space. We argue that consistency of the theory implies that the global momentum can be defined on de Sitter space. Then we perform careful canonical analysis and we we also s...

An IXPE-led X-Ray Spectropolarimetric Campaign on the Soft State of Cygnus X-1: X-Ray Polarimetric Evidence for Strong Gravitational Lensing

We present the first X-ray spectropolarimetric results for Cygnus X-1 in its soft state from a campaign of five IXPE observations conducted during 2023 May–June. Companion multiwavelength data during the campaign are likewise shown. The 2–8...

A Deep SETI Search for Technosignatures in the TRAPPIST-1 System with FAST

The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world’s largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives. We conducted a targeted search...

Chemical and Orbital Signatures of Three Hypervelocity Stars: Constraints on the Origins

We present a chemodynamical analysis of three hypervelocity stars (HVS) selected from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope medium-resolution spectroscopic survey and Gaia. The high-resolution follow-up observation w...

Reconnaissance with JWST of the J-region Asymptotic Giant Branch in Distance Ladder Galaxies: From Irregular Luminosity Functions to Approximation of the Hubble Constant

We study stars in the J-regions of the asymptotic giant branch (JAGB) of near-infrared color–magnitude diagrams in the maser host NGC 4258 and four hosts of six Type Ia supernovae (SNe Ia): NGC 1448, NGC 1559, NGC 5584, and NGC 5643. These ...

Soft theorems for boosts and other time symmetries

Abstract We derive soft theorems for theories in which time symmetries — symmetries that involve the transformation of time, an example of which are Lorentz boosts — are spontaneously broken. The soft theorems involve unequal-time correlati...

An invitation to astrophysics

This unique book provides a clear and lucid description of several aspects of astrophysics and cosmology in a language understandable to a physicist or beginner in astrophysics. It presents the key topics in all branches of astrophysics and...

Nuclear astrophysics

Nuclear astrophysics is that branch of astrophysics which helps understanding some of the many facets of the Universe through the knowledge of the microcosm of the atomic nucleus. In the last decades much advance has been made in nuclear as...