Results 11 to 20 of about 807,144 (296)

Constraints on Minute-Scale Transient Astrophysical Neutrino Sources [PDF]

open access: yesPhysical Review Letters, 2019
High-energy neutrino emission has been predicted for several short-lived astrophysical transients including gamma-ray bursts (GRBs), core-collapse supernovae with choked jets and neutron star mergers. IceCube's optical and X-ray follow-up program searches for such transient sources by looking for two or more muon neutrino candidates in directional ...
Aartsen M. G.   +230 more
openaire   +15 more sources

The JCMT Transient Survey: Single-epoch Transients and Variability of Faint Sources

open access: yesThe Astrophysical Journal, 2022
Abstract Short-duration flares at millimeter wavelengths provide unique insights into the strongest magnetic reconnection events in stellar coronae and combine with longer-term variability to introduce complications to next-generation cosmology surveys.
Johnstone, Doug   +15 more
openaire   +2 more sources

A New Sample of Transient Ultraluminous X-Ray Sources Serendipitously Discovered by Swift/XRT

open access: yesThe Astrophysical Journal, 2023
Ultraluminous X-ray sources (ULXs) are our best laboratories for studying extreme super-Eddington accretion. Most studies of these objects are of relatively persistent sources; however, there is growing evidence to suggest a large fraction of these ...
Murray Brightman   +13 more
doaj   +1 more source

Millenium Year X-ray Transients in Andromeda Galaxy [PDF]

open access: yes, 2001
We study three transient X-ray sources, that were bright in the central region of M31 galaxy in the year 2000. Observations with Chandra and XMM-Newton allowed us for the first time in the history of X-ray astronomy, to build light curves of transient ...
Konstantin N. Borozdin   +5 more
core   +2 more sources

On the X-ray Outbursts of Transient Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters [PDF]

open access: yes, 2012
We show that the X-ray outburst light curves of four transient anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs), namely XTE J1810-197, SGR 0501+4516, SGR 1627-41 and CXOU J164710.2-455216, can be produced by the fallback disk model that
Alpar   +30 more
core   +2 more sources

Recent Transient X-Ray Sources [PDF]

open access: yesHighlights of Astronomy, 1977
Prior to the launch of the Ariel V satellite in 1974, four transient X-ray sources had been observed. We placed the study of sources of this type amongst the major objectives of the satellite, and so ensured that the spacecraft ground centre was capable of quick reaction, and that experimenters had rapid access to their data, so that new transients ...
openaire   +1 more source

On the nature of the AGILE galactic transient sources [PDF]

open access: yes, 2009
The Italian gamma-ray satellite AGILE has recently reported the detection of some variable high-energy sources likely of galactic origin. These sources do not have any obvious counterpart at lower energies.
Aharonian   +18 more
core   +3 more sources

FAST Observations of FRB 20220912A: Burst Properties and Polarization Characteristics

open access: yesThe Astrophysical Journal, 2023
We report the observations of FRB 20220912A using the Five-hundred-meter Aperture Spherical radio Telescope. We conducted 17 observations totaling 8.67 hr and detected a total of 1076 bursts with an event rate up to 390 hr ^−1 .
Yong-Kun Zhang   +23 more
doaj   +1 more source

Fermi-LAT results on Galactic Plane gamma-ray Transient Sources [PDF]

open access: yes, 2009
The Large Area Telescope on the Fermi gamma-ray Space Telescope provides unprecedented sensitivity for all-sky monitoring of gamma-ray activity. It has detected a few Galactic sources, including 2 gamma-ray binaries and a microquasar.
Chaty, Sylvain
core   +3 more sources

Swift/BAT and MAXI/GSC Broadband Transient Monitor

open access: yes, 2015
We present the newly developed broadband transient monitor using the Swift Burst Alert Telescope (BAT) and the MAXI Gas Slit Camera (GSC) data. Our broadband transient monitor monitors high energy transient sources from 2 keV to 200 keV in seven energy ...
Arimoto, Makoto   +9 more
core   +1 more source

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