232 citations · 411 across the 11 of their papers we have counts for
11 papers
Einstein Probe discovery of the magnetar EP J223759.5+531421
N. Rea, F. Coti Zelati, A. Borghese +44
We report the discovery and early outburst evolution of the new Galactic magnetar EP J223759.5+531421, detected by the Einstein Probe Wide-field X-ray Telescope on 2026 June 28. Fo…
NICER and Swift/XRT monitoring of the 2023 outburst of Swift J1727.7-1613
H. Stiele, A. K. H. Kong
The X-ray transient, Swift J1727.7-1613 was first detected on 24 August 2023 by Swift/BAT and INTEGRAL. We investigated data from the Neutron star Interior Composition Explorer (NI…
Time Domain Astronomy with the THESEUS Satellite
S. Mereghetti, S. Balman, M. Caballero-Garcia +74
THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Univ…
A timing study of MAXI J1820+070 based on Swift/XRT and NICER monitoring in 2018/19
H. Stiele, A. K. H. Kong
We present a detailed timing analysis of the bright black hole X-ray binary MAXI J1820+070 (ASASSN-18ey), during its first detected outburst lasting from March 2018 until October 2…
Peculiar outbursts of an ultra luminous source likely signs of an aperiodic disc-wind
H. Stiele, A. K. H. Kong
The metal rich globular cluster RZ 2109 in the massive Virgo elliptical galaxy NGC 4472 (M49) harbours the ultra luminous X-ray source XMMU 122939.7+075333. Previous studies showed…
A spectral and timing study of MAXI J1535-571, based on Swift/XRT, XMM-Newton and NICER observations obtained in fall 2017
H. Stiele, A. K. H. Kong
We present a spectral-timing analysis of observations taken in fall 2017 of the newly detected X-ray transient MAXI J1535-571. We included 38 Swift/XRT window timing mode observati…
A tale of two transients: GW170104 and GRB170105A
V. Bhalerao, M. M. Kasliwal, D. Bhattacharya +30
We present multi-wavelength follow-up campaigns by the AstroSat-CZTI and GROWTH collaborations to search for an electromagnetic counterpart to the gravitational wave event GW170104…
NuSTAR and XMM-Newton observations of the 2015 outburst decay of GX 339-4
H. Stiele, A. K. H. Kong
The extent of the accretion disk in the low/hard state of stellar mass black hole X-ray binaries remains an open question. There are some evidence suggesting that the inner accreti…
Millihertz Quasi-periodic Oscillations in 4U 1636-536: Putting Possible Constraints on the Neutron Star Size
H. Stiele, W. Yu, A. K. H. Kong
Based on previous studies of quasi-periodic oscillations in neutron star LMXBs, mHz quasi-periodic oscillations (QPO) are believed to be related to `marginally stable' burning on t…
The 2015 hard-state only outburst of GS 1354-64
H. Stiele, A. K. H. Kong
Since its outburst in 1997 GS 135-64 stayed in quiescence. In June 2015 renewed activity of GS 1354-64 was observed. Based on our analysis of energy spectra and timing properties o…
Discovery, Progenitor & Early Evolution of a Stripped Envelope Supernova iPTF13bvn
Yi Cao, Mansi M. Kasliwal, Iair Arcavi +24
The intermediate Palomar Transient Factory reports our discovery of a young supernova, iPTF13bvn, in the nearby galaxy, NGC5806 (22.5Mpc). Our spectral sequence in the optical and…