Results 11 to 20 of about 468,326 (252)

The AGEL Survey: Spectroscopic Confirmation of Strong Gravitational Lenses in the DES and DECaLS Fields Selected Using Convolutional Neural Networks

open access: yesThe Astronomical Journal, 2022
We present spectroscopic confirmation of candidate strong gravitational lenses using the Keck Observatory and Very Large Telescope as part of our ASTRO 3D Galaxy Evolution with Lenses ( AGEL ) survey.
Kim-Vy H. Tran   +15 more
doaj   +1 more source

Women’s and men’s career choices in astronomy and astrophysics

open access: yesPhysical Review Physics Education Research, 2016
[This paper is part of the Focused Collection on Gender in Physics.] The Longitudinal Study of Astronomy Graduate Students (LSAGS) arose from the 2003 Women in Astronomy Conference, where it was noted that a majority of young members of the American ...
Rachel Ivie, Susan White, Raymond Y. Chu
doaj   +1 more source

The Phenomena of High Energy Astrophysics [PDF]

open access: yes, 2003
A brief summary of some highlights in the study of high energy astrophysical sources over the past decade is presented. It is argued that the great progress that has been made derives largely from the application of new technology to observation ...
Blandford, R. D.
core   +3 more sources

A Versatile Integral in Physics and Astronomy and Fox’s H-Function

open access: yesAxioms, 2019
This paper deals with a general class of integrals, the particular cases of which are connected to outstanding problems in physics and astronomy.
Arak M. Mathai, Hans J. Haubold
doaj   +1 more source

Observations of interplanetary scintillation during the 1998 Whole Sun Month: a comparison between EISCAT, ORT and Nagoya data [PDF]

open access: yesAnnales Geophysicae, 2000
Observations of interplanetary scintillation (IPS) allow accurate solar wind velocity measurements to be made at all heliographic latitudes and at a range of distances from the Sun.
P. J. Moran   +11 more
doaj   +1 more source

INTEGRAL and Nuclear Astrophysics [PDF]

open access: yes, 2001
We briefly review the fundamentals of nuclear gamma-ray line astronomy (radioactive astronomy), focusing on its role to decipher the intimate physics of supernovae, either immediatly (via $^{56}Co)$ or after a time delay (via $^{44}Ti$).
Casse, Michel   +2 more
core   +2 more sources

The four-loop cusp anomalous dimension from the N=4 Sudakov form factor

open access: yesPhysics Letters B, 2020
We present an analytic derivation of the full four-loop cusp anomalous dimension of N=4 supersymmetric Yang-Mills theory from the Sudakov form factor. To extract the cusp anomalous dimension, we calculate the ϵ−2 pole of the form factor using parametric ...
Tobias Huber   +4 more
doaj   +1 more source

A Glimpse of the Stellar Populations and Elemental Abundances of Gravitationally Lensed, Quiescent Galaxies at z ≳ 1 with Keck Deep Spectroscopy

open access: yesThe Astrophysical Journal, 2023
Gravitational lenses can magnify distant galaxies, allowing us to discover and characterize the stellar populations of intrinsically faint, quiescent galaxies that are otherwise extremely difficult to directly observe at high redshift from ground-based ...
Zhuyun Zhuang   +15 more
doaj   +1 more source

The NASA Astrophysics Data System: Data Holdings [PDF]

open access: yes, 1999
Since its inception in 1993, the ADS Abstract Service has become an indispensable research tool for astronomers and astrophysicists worldwide. In those seven years, much effort has been directed toward improving both the quantity and the quality of ...
Accomazzi, A.   +4 more
core   +2 more sources

A Problem with STEM [PDF]

open access: yes, 2013
Striking differences between physics and biology have important implications for interdisciplinary science, technology, engineering, and mathematics (STEM) education. I am a physicist with interdisciplinary connections. The research group in which I work,
Marder, Michael
core   +1 more source

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