Results 31 to 40 of about 280,398 (327)

Optical and near-infrared observations of the GRB 970616 error box [PDF]

open access: yes, 1999
We report on near-infrared and optical observations of the GRB 970616 error box and of the X-ray sources discovered by ASCA and ROSAT in the region. No optical transient was found either within the IPN band or in the X-ray error boxes, similarly to other
Castro-Tirado, A. J.   +9 more
core   +2 more sources

History of Astronomy in Australia: Big-Impact Astronomy from World War II until the Lunar Landing (1945–1969)

open access: yesGalaxies, 2021
Radio astronomy commenced in earnest after World War II, with Australia keenly engaged through the Council for Scientific and Industrial Research. At this juncture, Australia’s Commonwealth Solar Observatory expanded its portfolio from primarily studying
Alister W. Graham   +4 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

TeV Particle Astrophysics II: Summary comments [PDF]

open access: yes, 2006
A unifying theme of this conference was the use of different approaches to understand astrophysical sources of energetic particles in the TeV range and above.
  +42 more
core   +2 more sources

Measurement of the low energy 25Mg(p,γ)26Al resonances [PDF]

open access: yesEPJ Web of Conferences, 2022
The cosmic 1.809 MeV γ-ray emitted by the radioactive nucleus 26Al in the Galaxy is one of the key observation targets of the γ-ray astronomy. The 26Al is mainly produced by the 25Mg(p,γ)26Al reaction in the stellar Mg-Al reaction cycle.
Su Jun   +17 more
doaj   +1 more source

Cherenkov Telescope Ring - An Idea for World Wide Monitoring of the VHE Sky [PDF]

open access: yesEPJ Web of Conferences, 2019
With very high energy (VHE) gamma-ray astronomy becoming a mature branch of observational astrophysics, and the multi-messenger sky being opened up by neutrino observatories and gravitational wave detectors, we here propose to set up a ring of imaging ...
Ruhe Tim   +4 more
doaj   +1 more source

Using Cepheids to determine the galactic abundance gradient I. The solar neighbourhood [PDF]

open access: yes, 2001
A number of studies of abundance gradients in the galactic disk have been performed in recent years. The results obtained are rather disparate: from no detectable gradient to a rather significant slope of about -0.1 dex kpc -1. The present study concerns
Afflerbach   +92 more
core   +2 more sources

Units in Astronomy & Astrophysics

open access: yes, 2021
This paper has been prepared by the authors as the International Astronomical Union’s (IAU) contribution to the Task Group on Digital Representation of Units of Measure (DRUM) of the Committee on Data (CODATA) of the International Science Council (ISC). It describes the standards for use of units in astronomy and astrophysics and their development over
Rots, Arnold   +2 more
openaire   +2 more sources

The Blazar Sequence and Its Physical Understanding

open access: yesGalaxies, 2022
Introduced in 1998 to attempt a first unified view of the broad-band emission properties of blazars, the blazar sequence has been extensively used in the past 25 years to guide observations as well as the physical interpretation of the overall emission ...
Elisa Prandini, Gabriele Ghisellini
doaj   +1 more source

Looking before Leaping: Creating a Software Registry

open access: yesJournal of Open Research Software, 2015
What lessons can be learned from examining numerous efforts to create a repository or directory of scientist-written software for a discipline? Astronomy has seen a number of efforts to build such a resource, one of which is the Astrophysics Source Code ...
Alice Allen, Judy Schmidt
doaj   +1 more source

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