Results 21 to 30 of about 16,604,898 (278)
The Astrophysical Journal, 2023 The conditions under which accreting neutron stars launch radio-emitting jets and/or outflows are still poorly understood. The ultracompact X-ray binary X1850–087, located in the globular cluster NGC 6712, is a persistent atoll-type X-ray source that has
Teresa Panurach +8 more
doaj +1 more source
Online Classification for Time-Domain Astronomy [PDF]
2013 IEEE 13th International Conference on Data Mining Workshops, 2013 The advent of synoptic sky surveys has spurred the development of techniques for real-time classification of astronomical sources in order to ensure timely follow-up with appropriate instruments. Previous work has focused on algorithm selection or improved light curve representations, and naively convert light curves into structured feature sets ...
Kitty K. Lo +3 more
openaire +3 more sources
Is the M81 Fast Radio Burst Host Globular Cluster Special?
The Astrophysical Journal Letters, 2023 We use multiband archival Hubble Space Telescope (HST) observations to measure the photometric and structural parameters of the M81 globular cluster (GC) that hosts the fast radio burst FRB 20200120E. Our best-fitting King model has an effective radius r
Kristen C. Dage +7 more
doaj +1 more source
Gravitational Waves and Time-Domain Astronomy [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractThe gravitational-wave window onto the universe will open in roughly five years, when Advanced LIGO and Virgo achieve the first detections of high-frequency gravitational waves, most likely coming from compact binary mergers. Electromagnetic follow-up of these triggers, using radio, optical, and high energy telescopes, promises exciting ...
Centrella, Joan +2 more
openaire +2 more sources
Evidence for Multiple Shocks from the γ-Ray Emission of RS Ophiuchi
The Astrophysical Journal, 2023 In 2021 August, the Fermi Large Area Telescope, H.E.S.S., and MAGIC detected GeV and TeV γ -ray emission from an outburst of recurrent nova RS Ophiuchi. This detection represents the first very high-energy γ -rays observed from a nova, and it opens a new
Rebecca Diesing +6 more
doaj +1 more source
Data-driven Discovery of Transients in the New Era of Time-Domain Astronomy [PDF]
, 2021 Time-domain astronomy has reached an incredible new era where unprecedented amounts of data are becoming available. New large-scale astronomical surveys such as the Legacy Survey of Space and Time (LSST) are going to revolutionise transient astronomy ...
core +2 more sources
Opening the 100-Year Window for Time-Domain Astronomy [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractThe large-scale surveys such as PTF, CRTS and Pan-STARRS-1 that have emerged within the past 5 years or so employ digital databases and modern analysis tools to accentuate research into Time Domain Astronomy (TDA). Preparations are underway for LSST which, in another 6 years, will usher in the second decade of modern TDA.
Grindlay, Jonathan +3 more
openaire +2 more sources
Skyrmion Bubbles by Design in a Centrosymmetric Kagome Magnet. [PDF]
Adv Sci (Weinh)Chemical tuning of magnetocrystalline anisotropy in the centrosymmetric kagome magnet TmMn6Sn6 is shown to drive a spin reorientation transition via an intermediate magnetic fan state and to stabilize an emergent skyrmion bubble lattice. Four‐dimensional cryogenic Lorentz scanning transmission electron microscopy confirms the nanoscale texture ...
El Gazzah M +6 more
europepmc +2 more sources
How Swift is redefining time domain astronomy
Journal of High Energy Astrophysics, 2015 NASA's Swift satellite has completed ten years of amazing discoveries in time domain astronomy. Its primary mission is to chase gamma-ray bursts (GRBs), but due to its scheduling flexibility it has subsequently become a prime discovery machine for new types of behavior.
Gehrels, N., Cannizzo, J.K.
openaire +2 more sources
Open skies: the National Radio Astronomy Observatory and its impact on US radio astronomy [PDF]
, 2020 This open access book on the history of the National Radio Astronomy Observatory covers the scientific discoveries and technical innovations of late 20th century radio astronomy with particular attention to the people and institutions involved.
Kellermann, Kenneth I. +5 more
core +1 more source