Results 41 to 50 of about 378,234 (335)

Reanalysis of the X-Ray-burst-associated FRB 200428 with Insight-HXMT Observations

open access: yesThe Astrophysical Journal, 2023
A double-peak X-ray burst from the Galactic magnetar SGR J1935+2154 was discovered to be associated with the two radio pulses of FRB 200428 separated by 28.97 ± 0.02 ms.
M. Y. Ge   +17 more
doaj   +1 more source

Discovery of the upper kilohertz quasi-periodic oscillation from the X-ray transient Aql X-1 [PDF]

open access: yes, 2007
We report on a comprehensive analysis of the kilohertz (≥600 Hz) quasi-periodic oscillations (kHz QPOs) detected from the neutron star X-ray transient Aquila X-1 (Aql X-1) with the Rossi X-ray Timing Explorer, between 1997 and 2007. Among kHz QPO sources,
D. Barret, M. Boutelier, M. Miller
semanticscholar   +1 more source

The discovery of a 7-14 Hz quasi-periodic oscillation in the x-ray transient XTE J1806-246 [PDF]

open access: yes, 1999
We have studied the correlated X-ray spectral and X-ray timing behavior of the X-ray transient XTE J1806-246 using data obtained with the proportional counter array on board the Rossi X-Ray Timing Explorer (RXTE).
Rudy WijnandsMichiel van der Klis
semanticscholar   +1 more source

Mass transfer during low-mass X-ray transient decays [PDF]

open access: yes, 2006
The outbursts of low-mass X-ray binaries are prolonged relative to those of dwarf nova cataclysmic variables as a consequence of X-ray irradiation of the disc.
C. Powell, C. Haswell, M. Falanga
semanticscholar   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

The Radio Flare and Multiwavelength Afterglow of the Short GRB 231117A: Energy Injection from a Violent Shell Collision

open access: yesThe Astrophysical Journal
We present the early radio detection and multiwavelength modeling of the short gamma-ray burst (GRB) 231117A at redshift z = 0.257. The Australia Telescope Compact Array automatically triggered a 9 hr observation of GRB 231117A at 5.5 and 9 GHz following
G. E. Anderson   +67 more
doaj   +1 more source

Absorption of Gamma-Ray Burst X-Ray Afterglows by the Missing Baryons: Confronting Observations with Cosmological Simulations

open access: yesThe Astrophysical Journal, 2023
A large fraction of the baryons at low redshift are undetected and likely reside in the tenuous, hot intergalactic medium (IGM). One way to probe the missing baryons is through their absorption of bright sources.
Matan Grauer, Ehud Behar
doaj   +1 more source

Astrophysical parameters of the peculiar X-ray transient IGR J11215−5952 [PDF]

open access: yes, 2013
Context. The current generation of X-ray satellites has discovered many new X-ray sources that are difficult to classify within the well-described subclasses.
J. Lorenzo   +5 more
semanticscholar   +1 more source

Multidimensional OMICs reveal ARID1A orchestrated control of DNA damage, splicing, and cell cycle in normal‐like and malignant urothelial cells

open access: yesMolecular Oncology, EarlyView.
Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser   +11 more
wiley   +1 more source

Constraints on Relativistic Jets from the Fast X-Ray Transient 210423 Using Prompt Radio Follow-up Observations

open access: yesThe Astrophysical Journal
Fast X-ray transients (FXTs) are a new observational class of phenomena with no clear physical origin. This is at least partially a consequence of limited multiwavelength follow-up of this class of transients in real time.
Dina Ibrahimzade   +18 more
doaj   +1 more source

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