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View article: Einstein Probe Discovery of EP J182730.0−095633: A New Black Hole X-Ray Binary Candidate in Faint Outburst?
Einstein Probe Discovery of EP J182730.0−095633: A New Black Hole X-Ray Binary Candidate in Faint Outburst? Open
Black hole X-ray binaries (candidates) currently identified in our Galaxy are mainly transient sources, with the majority discovered through the detection of their X-ray outbursts. Among these, only four were found during faint outbursts e…
View article: Einstein Probe discovery of the short-period intermediate polar EP J115415.8−501810
Einstein Probe discovery of the short-period intermediate polar EP J115415.8−501810 Open
The X-ray transient source EP240309a/EP J115415.8−501810 was first detected by the Wide-field X-ray Telescope on board the Einstein Probe (EP) instrument during the commissioning phase. Subsequent optical observations confirmed it as a cat…
View article: Einstein Probe Discovery of EP J182730.0-095633: A New Black Hole X-ray Binary Candidate in Faint Outburst?
Einstein Probe Discovery of EP J182730.0-095633: A New Black Hole X-ray Binary Candidate in Faint Outburst? Open
Black hole X-ray binaries (candidates) currently identified in our galaxy are mainly transient sources, with the majority discovered through the detection of their X-ray outbursts. Among these, only four were found during faint outbursts e…
View article: Impact of accretion assumptions on pulse profile modelling of superburst oscillations in 4U 1636−536
Impact of accretion assumptions on pulse profile modelling of superburst oscillations in 4U 1636−536 Open
Modelling the coherent pulsations observed during thermonuclear bursts offers a valuable method to probe the poorly understood equation of state of dense and cold matter. Here we apply the pulse profile modelling technique to the pulsation…
View article: Einstein Probe Discovery of EP J005245.1−722843: A Rare Be–White Dwarf Binary in the Small Magellanic Cloud?
Einstein Probe Discovery of EP J005245.1−722843: A Rare Be–White Dwarf Binary in the Small Magellanic Cloud? Open
On 2024 May 27, the Wide-field X-ray Telescope on board the Space Sciences, University of Chinese Academy of Einstein Probe (EP) mission detected enhanced X-ray emission from a new transient source in the Small Magellanic Cloud during its …
View article: Science objectives of the Einstein Probe mission
Science objectives of the Einstein Probe mission Open
View article: Soft X-ray prompt emission from the high-redshift gamma-ray burst EP240315a
Soft X-ray prompt emission from the high-redshift gamma-ray burst EP240315a Open
View article: An Intermediate-mass Black Hole Lurking in A Galactic Halo Caught Alive during Outburst
An Intermediate-mass Black Hole Lurking in A Galactic Halo Caught Alive during Outburst Open
Stellar-mass and supermassive black holes abound in the Universe, whereas intermediate-mass black holes (IMBHs) of ~10^2-10^5 solar masses in between are largely missing observationally, with few cases found only. Here we report the real-t…
View article: ESA Science Programme Missions
ESA Science Programme Missions Open
View article: Extragalactic fast X-ray transient from a weak relativistic jet associated with a Type Ic-BL supernova
Extragalactic fast X-ray transient from a weak relativistic jet associated with a Type Ic-BL supernova Open
Massive stars end their life as core-collapse supernovae, amongst which some extremes are Type Ic broad-lined supernovae associated with long-duration gamma-ray bursts (LGRBs) having powerful relativistic jets. Their less-extreme brethren …
View article: Triggering the Untriggered: The First Einstein Probe-detected Gamma-Ray Burst 240219A and Its Implications
Triggering the Untriggered: The First Einstein Probe-detected Gamma-Ray Burst 240219A and Its Implications Open
The Einstein Probe (EP) achieved its first detection and localization of a bright X-ray flare, EP240219a, on 2024 February 19, during its commissioning phase. Subsequent targeted searches triggered by the EP240219a alert identified a faint…
View article: Einstein Probe discovery of EP240408a: A peculiar X-ray transient with an intermediate timescale
Einstein Probe discovery of EP240408a: A peculiar X-ray transient with an intermediate timescale Open
View article: Conclusions
Conclusions Open
This chapter summarises and draws together the results of the previous chapters of this work. Using the assumption that the exploitation and contributions to the Science Programme should scale with a Member State’s financial contribution t…
View article: INTEGRAL Observing Time Proposals
INTEGRAL Observing Time Proposals Open
We examine the outcomes of the regular announcements of observing opportunities for ESA’s gamma-ray observatory INTEGRAL issued between 2000 and 2021. We investigate how success rates vary with the lead proposer’s gender, “academic age” an…
View article: Einstein Probe discovery of EP J005245.1-722843: a rare BeWD binary in the Small Magellanic Cloud?
Einstein Probe discovery of EP J005245.1-722843: a rare BeWD binary in the Small Magellanic Cloud? Open
On May 27 2024, the Wide-field X-ray Telescope onboard the Einstein Probe (EP) mission detected enhanced X-ray emission from a new transient source in the Small Magellanic Cloud (SMC) during its commissioning phase. Prompt follow-up with t…
View article: Triggering the Untriggered: The First Einstein Probe-Detected Gamma-Ray Burst 240219A and Its Implications
Triggering the Untriggered: The First Einstein Probe-Detected Gamma-Ray Burst 240219A and Its Implications Open
The Einstein Probe (EP) achieved its first detection and localization of a bright X-ray flare, EP240219a, on 2024 February 19, during its commissioning phase. Subsequent targeted searches triggered by the EP240219a alert identified a faint…
View article: X-ray optics test and calibration of the Einstein Probe Follow-up telescope
X-ray optics test and calibration of the Einstein Probe Follow-up telescope Open
The Follow-up X-ray telescope (FXT) is one of the instruments on board the Einstein Probe (EP) satellite of the Chinese Academy of Sciences (CAS) which was launched in January 2024. The EP mission is dedicated to the study of time-domain h…
View article: Soft X-ray prompt emission from a high-redshift gamma-ray burst EP240315a
Soft X-ray prompt emission from a high-redshift gamma-ray burst EP240315a Open
Long gamma-ray bursts (GRBs) are believed to originate from core collapse of massive stars. High-redshift GRBs can probe the star formation and reionization history of the early universe, but their detection remains rare. Here we report th…
View article: Thermonuclear explosions on neutron stars reveal the speed of their jets
Thermonuclear explosions on neutron stars reveal the speed of their jets Open
View article: INTEGRAL view of GRB 221009A
INTEGRAL view of GRB 221009A Open
The gamma-ray burst GRB 221009A is among the most luminous of its kind and its proximity to Earth has made it an exceptionally rare observational event. The International Gamma-ray Astrophysics Laboratory (INTEGRAL) was in an optimal aspec…
View article: ESA Science Programme Missions: Contributions and Exploitation -- INTEGRAL Observing Time Proposals
ESA Science Programme Missions: Contributions and Exploitation -- INTEGRAL Observing Time Proposals Open
We examine the outcomes of the regular announcements of observing opportunities for ESA's gamma-ray observatory INTEGRAL issued between 2000 and 2021. We investigate how success rates vary with the lead proposer's gender, academic age and …
View article: A catalogue of unusually long thermonuclear bursts on neutron stars
A catalogue of unusually long thermonuclear bursts on neutron stars Open
Rare, energetic (long) thermonuclear (Type I) X-ray bursts are classified either as intermediate-duration or ‘supern’ bursts, based on their duration. Intermediate-duration bursts lasting a few to tens of minutes are thought to arise from …
View article: First Wide Field-of-view X-Ray Observations by a Lobster-eye Focusing Telescope in Orbit
First Wide Field-of-view X-Ray Observations by a Lobster-eye Focusing Telescope in Orbit Open
As a novel X-ray focusing technology, lobster-eye micropore optics (MPO) feature both a wide observing field of view and true imaging capability, promising sky monitoring with significantly improved sensitivity and spatial resolution in so…
View article: HILIGT, Upper Limit Servers I -- Overview
HILIGT, Upper Limit Servers I -- Overview Open
The advent of all-sky facilities, such as the Neil Gehrels Swift observatory, the All Sky Automated Search for Supernovae (ASASSN), eROSITA and Gaia has led to a new appreciation of the importance of transient sources in solving outstandin…
View article: INTEGRAL reloaded: Spacecraft, instruments and ground system
INTEGRAL reloaded: Spacecraft, instruments and ground system Open
View article: The INTEGRAL view on black hole X-ray binaries
The INTEGRAL view on black hole X-ray binaries Open
View article: Re-evaluation of Lunar X-ray observations by Apollo 15 and 16
Re-evaluation of Lunar X-ray observations by Apollo 15 and 16 Open
The Apollo 15 and 16 missions were the first to explore the Lunar surface chemistry by investigating about 10% of the Lunar surface using a remote sensing X-ray fluorescence spectrometer experiment. The data obtained have been extensively …
View article: INTEGRAL detects renewed activity of the Be/X-ray binary pulsar 1A 0535+262
INTEGRAL detects renewed activity of the Be/X-ray binary pulsar 1A 0535+262 Open
View article: The <i>Swift</i> bulge survey: motivation, strategy, and first X-ray results
The <i>Swift</i> bulge survey: motivation, strategy, and first X-ray results Open
Very faint X-ray transients (VFXTs) are X-ray transients with peak X-ray luminosities (LX) of L$_X \lesssim 10^{36}$ erg s−1, which are not well understood. We carried out a survey of 16 deg2 of the Galactic Bulge with the Swift Observator…
View article: Multi-messenger astronomy with INTEGRAL
Multi-messenger astronomy with INTEGRAL Open