A New Sample of Transient Ultraluminous X-Ray Sources Serendipitously Discovered by Swift/XRT [PDF]
The 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 +2 more sources
Persistent and Transient Blank Field Sources [PDF]
Astrophysics and Space Science, 2006 Blank field sources (BFS) are good candidates for hosting dim isolated neutron stars (DINS). The results of a search of BFS in the ROSAT HRI images are revised. We then focus on transient BFS, arguing that they belong to a rather large population.
A. Moretti +19 more
core +3 more sources
V751 Cyg and V Sge as transient supersoft X-ray sources [PDF]
, 1999 I review the observational evidence for luminous, soft X-ray emission during optical low-states in the two cataclysmic variables V751 Cyg and V Sge, and discuss the possible link to the canonical supersoft X-ray sources.Comment: 6 pages with newarcrc.sty;
Greiner, J.
core +3 more sources
A Population Study of the Radio Emission of Fast Blue Optical Transients
The Astrophysical Journal, 2023 Despite the fact that the progenitor of fast blue optical transients (FBOTs) is still a subject of debate, FBOTs are sometimes suggested to originate from the core collapse of ultra-stripped stars and be powered by a spinning-down neutron star. Following
Jian-Feng Liu +3 more
doaj +1 more source
Short Duration Gamma-Ray Bursts and Their Outflows in Light of GW170817
Frontiers in Astronomy and Space Sciences, 2020 The detection of GW170817, it’s extensive multi-wavelength follow-up campaign, and the large amount of theoretical development and interpretation that followed, have resulted in a significant step forward in the understanding of the binary neutron star ...
Davide Lazzati
doaj +1 more source
Limits on Simultaneous and Delayed Optical Emission from Well-localized Fast Radio Bursts
The Astrophysical Journal Letters, 2023 We present the largest compilation to date of optical observations during and following fast radio bursts (FRBs). The data set includes our dedicated simultaneous and follow-up observations, as well as serendipitous archival survey observations, for a ...
Daichi Hiramatsu +8 more
doaj +1 more source
Detecting transient gravitational waves in non-Gaussian noise with partially redundant analysis methods [PDF]
, 2012 There is a broad class of astrophysical sources that produce detectable, transient, gravitational waves. Some searches for transient gravitational waves are tailored to known features of these sources.
Biswas, Rahul +11 more
core +2 more sources
On the X-ray Outbursts of Transient Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters [PDF]
, 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
On the nature of the AGILE galactic transient sources [PDF]
, 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
The 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