Results 61 to 70 of about 173,290,720 (185)

Mapping the dynamics, star-formation rates, and chemical properties of galaxies with integral field spectroscopy [PDF]

, 2005
Major advances in the development of instruments for eight and ten meter class telescopes are revolutionising our understanding of galaxy formation. In particular, Integral Field Spectrographs (which produce a three dimensional {x, y, velocity) map of a ...
Swinbank, Anthony Mark, Swinback, Anthony Mark   +1 more
core  

Type‐III Solar Radio Bursts at Mars: A 16.5‐Year Catalog From Mars Express‐MARSIS at 0.1–5.5 MHz

Space Weather, Volume 24, Issue 10, October 2026.
Abstract The most intense radio feature in the Solar System are the solar Type‐III radio bursts, which are associated with electron beams that propagate along open magnetic field lines. Although solar radio bursts have been studied since the 1940s, observations remain mainly restricted within 1 AU.
Beatriz Sánchez‐Cano, Samuel Carter, Mark Lester, Olivier Witasse, Caitriona M. Jackman, Sophie Musset, Baptiste Cecconi, Louis Siebenaler, Simon Joyce, Luis Alberto Cañizares, Andrea Cicchetti, Alexandra R. Fogg, Peter Gallagher, Christopher Gerekos, Yuki Harada, Alessandro Ippolito, Immanuel Jebaraj, Dikshita Meggi, Roberto Orosei, Hermann Opgenoorth, Jeff Plaut, Catherine Regan, Katerina Stergiopoulou   +22 more
wiley   +1 more source

Astrophysics is easy! an introduction for the amateur astronomer

, 2007
With some justification, many amateur astronomers believe astrophysics is a very difficult subject, requiring at least degree-level mathematics to understand it properly. This isn’t necessarily the case.
Inglis, Mike
core   +1 more source

Fundamentals of stellar evolution and nucleosynthesis [PDF]

EPJ Web of Conferences
The theory of stellar structure and evolution plays a pivotal role in modern astrophysics. Stellar evolution calculations are used to determine the ages and, to a lesser extent, distances of stars, which are critical to our knowledge of the history and ...
Vescovi Diego
doaj   +1 more source

Photochemical effects of Mars‐like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on Mars

Meteoritics &Planetary Science, Volume 61, Issue 10, Page 2445-2465, October 2026.
Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner, J. C. Aponte, A. C. Schuerger, D. I. Foustoukos, F. Seguin, M. B. Wilhelm, G. Cooper, A. J. Williams   +7 more
wiley   +1 more source

CCD R Photometry of WHISP Dwarf Galaxies

, 2002
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'The Westerbork HI survey of spiral and irregular galaxies. II.
Swaters, Robert, Balcells, Marc, Astronomy   +2 more
core   +1 more source

The nature of hyper luminous infrared galaxies

, 2021
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'The nature of hyper luminous infrared galaxies.' (bibcode: 2021A&A...654A ...
Leiden University, Farrah, D., INAF-IRA, University of Sussex, Kondapally, R., Italian ALMA Regional Centre, Aix Marseille Univ. CNRS, CNES, LAM, Bonato, M., University of Hawaii, Wang, Lingyu, Malek, K., Best, P.N., University of Edinburgh, Röttgering, H.J.A., Gao, Fangyou; id_orcid, McCheyne, I., National Centre for Nuclear Research, Astronomy, SRON Netherlands Institute for Space Research, INAF - Osservatorio Astronomico di Padova   +19 more
core   +1 more source

Cosmology from One Galaxy in a Void?

The Astrophysical Journal Letters
Understanding galaxy properties may be the key to unlocking some of the most intriguing mysteries of modern cosmology. Recent work relied on machine learning to extract cosmological constraints on Ω _m using only one galaxy.
Bonny Y. Wang, Alice Pisani
doaj   +1 more source

The Scales of Gravitational Lensing

Universe, 2016
After exactly a century since the formulation of the general theory of relativity, the phenomenon of gravitational lensing is still an extremely powerful method for investigating in astrophysics and cosmology.
Francesco De Paolis, Mosè Giordano, Gabriele Ingrosso, Luigi Manni, Achille Nucita, Francesco Strafella   +5 more
doaj   +1 more source

A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley   +1 more source