Results 61 to 70 of about 378,234 (335)

On the evolution of anomalous X-ray pulsars and soft gamma ray repeaters with fallback disks [PDF]

, 2009
We show that the period clustering of anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs), their X-ray luminosities, ages and statistics can be explained with fallback disks with large initial specific angular momentum.
Alpar, Barenblatt, Chatterjee, Ekşi, Erkut, Ertan, Ertan, Ertan, Ertan, Ertan, Ertan, Frank, Güver, Güver, Inutsuka, K. Y. Ekşi, Lüst, M. A. Alpar, M. H. Erkut, Menou, Perna, Pringle, Pringle, Psaltis, Rappaport, Shakura, Thompson, Thompson, Woods, Ü. Ertan   +29 more
core   +2 more sources

Discovery of X-Ray Burst Oscillations from a Neutron Star X-Ray Transient in the Globular Cluster NGC 6440 [PDF]

, 2003
We report the discovery of millisecond oscillations in an X-ray burst from the X-ray transient SAX J1748.9-2021 in the globular cluster NGC 6440. Oscillations at a frequency of 409.7 ± 0.3 Hz were present in one of 15 X-ray bursts observed with the ...
P. Kaaret, J. Zand, J. Heise, J. Tomsick
semanticscholar   +1 more source

Diffusion‐based size determination of solute particles: a method adapted for postsynaptic proteins

FEBS Open Bio, EarlyView.
We present a diffusion‐based approach for measuring the size of macromolecules and their complexes, and demonstrate its use on postsynaptic proteins. The method requires fluorescein‐labelled protein samples, a microfluidic device that maintains laminar flow for said samples, a microscope recording the emitted fluorescent signals, and an analytic ...
András László Szabó, Eszter Nagy‐Kanta, Soma Varga, Edit Andrea Jáger, Csaba István Pongor, Mária Laki, András József Laki, Zoltán Gáspári   +7 more
wiley   +1 more source

The Nature of Optical Afterglows without Gamma-Ray Bursts: Identification of AT2023lcr and Multiwavelength Modeling

The Astrophysical Journal
In the past few years, the improved sensitivity and cadence of wide-field optical surveys have enabled the discovery of several afterglows without associated detected gamma-ray bursts (GRBs).
Maggie L. Li, Anna Y. Q. Ho, Geoffrey Ryan, Daniel A. Perley, Gavin P. Lamb, Nayana A.J., Igor Andreoni, G. C. Anupama, Eric C. Bellm, Edo Berger, Joshua S. Bloom, Eric Burns, Ilaria Caiazzo, Poonam Chandra, Michael W. Coughlin, Kareem El-Badry, Matthew J. Graham, Mansi Kasliwal, Garrett K. Keating, S. R. Kulkarni, Harsh Kumar, Frank J. Masci, Richard A. Perley, Josiah Purdum, Ramprasad Rao, Antonio C. Rodriguez, Ben Rusholme, Nikhil Sarin, Jesper Sollerman, Gokul P. Srinivasaragavan, Vishwajeet Swain, Zachary Vanderbosch   +31 more
doaj   +1 more source

Reflection and Timing Study of the Transient Black Hole X-Ray Binary MAXI J1803-298 with NuSTAR

The Astrophysical Journal, 2023
The transient black hole X-ray binary MAXI J1803−298 was discovered on 2021 May 1, as it went into outburst from a quiescent state. As the source rose in flux it showed periodic absorption dips and fit the timing and spectral characteristics of a hard ...
Benjamin M. Coughenour, John A. Tomsick, Guglielmo Mastroserio, James F. Steiner, Riley M. T. Connors, Jiachen Jiang, Jeremy Hare, Aarran W. Shaw, Renee M. Ludlam, A. C. Fabian, Javier A. García, Joel B. Coley   +11 more
doaj   +1 more source

CXOM31 J004253.1+411422: the first ultraluminous X-ray transient in M 31 [PDF]

, 2011
Context. We seek clarification of the nature of X-ray sources detected in M 31. Here we focus on CXOM31 J004253.1+411422, the brightness of which suggests that it belongs to the class of ultraluminous X-ray sources. Aims.
A. Kaur, M. Henze, F. Haberl, W. Pietsch, Jochen Greiner, A. Rau, D. Hartmann, G. Sala, Margarida Hernanz   +8 more
semanticscholar   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

The Landscape of Collapsar Outflows: Structure, Signatures, and Origins of Einstein Probe Relativistic Supernova Transients

The Astrophysical Journal Letters
The Einstein Probe is revolutionizing time-domain astrophysics through the discovery of new classes of X-ray transients associated with broad-line Type Ic supernovae.
Ore Gottlieb
doaj   +1 more source

Swift observations of two supergiant fast X-ray transient prototypes in outburst [PDF]

, 2012
We report on the results from observations of the most recent outbursts of XTE J1739 302 and IGR J17544 2619, which are considered to be the prototypes of the supergiant fast X-ray transient (SFXT) class.
R. Farinelli, R. Farinelli, P. Romano, V. Mangano, C. Ceccobello, L. Ducci, S. Vercellone, P. Esposito, J. Kennea, D. Burrows   +9 more
semanticscholar   +1 more source

Engineering tandem VHHs to target different epitopes to enhance antibody‐dependent cell‐mediated cytotoxicity

FEBS Open Bio, EarlyView.
Tandem VHH targeting distinct EGFR epitopes were engineered into a monovalent bispecific antibody (7D12‐EGA1‐Fc) with more potent ADCC without increasing affinity to EGFR. Structural modeling of 7D12‐EGA1‐Fc showed cross‐linking of separate EGFR domains to enhance CD16a engagement on NK cells.
Yuqiang Xu, Hao Jiang, Limin Chen, Fulai Zhou, Ying Jin, Mark L. Chiu   +5 more
wiley   +1 more source