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Related papers: Neutron star observations with WFXT

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The James Webb Space Telescope (JWST) will allow observations with a unique combination of spectral, spatial, and temporal resolution for the study of outer planet satellites within our Solar System. We highlight the infrared spectroscopy…

Vortex fiber nulling (VFN) is a method that may enable the detection and characterization of exoplanets at small angular separations (0.5-2 $\lambda/D$) with ground- and space-based telescopes. Since the field of view is within the inner…

Instrumentation and Methods for Astrophysics · Physics 2019-09-11 Garreth Ruane , Daniel Echeverri , Nemanja Jovanovic , Dimitri Mawet , Eugene Serabyn , J. Kent Wallace , Jason Wang , Natasha Batalha

The Star Formation Across Cosmic Time (SFACT) survey is a new narrowband survey designed to detect emission-line galaxies (ELGs) and quasi-stellar objects (QSOs) over a wide range of redshifts in discrete redshift windows. The survey…

Astrophysics of Galaxies · Physics 2023-08-03 David J. Carr , Jennifer Sieben , John J. Salzer , Samantha W. Brunker , Bryce Cousins

Fast X-ray transients (FXTs) are X-ray flares lasting minutes to hours. Multi-wavelength counterparts to these FXTs have been proven hard to find. As a result distance measurements are through indirect methods such as host galaxy…

High Energy Astrophysical Phenomena · Physics 2024-09-25 Anne Inkenhaag , Peter G. Jonker , Andrew J. Levan , Jonathan Quirola-Vásquez , Franz E. Bauer , Deepak Eappachen

Fast X-ray Transients (FXTs) are extragalactic bursts of soft X-rays first identified >10 years ago. Since then, nearly 40 events have been discovered, although almost all of these have been recovered from archival Chandra and XMM-Newton…

For microlensing case angular distances between images or typical astrometric shifts due to microlensing are about $10^{-5}-10^{-6} \mu as$. Such an angular resolution will be reached with the space space--ground interferometer Radioastron.…

Astrophysics · Physics 2007-05-23 Alexander F. Zakharov

This is a White Paper in support of the mission concept of the Large Observatory for X-ray Timing (LOFT), proposed as a medium-sized ESA mission. We discuss the potential of LOFT for the study of thermonuclear X-ray bursts on accreting…

We review the status of our knowledge on supergiant fast X-ray transients (SFXTs), a new hot topic in multi wavelength studies of binaries. We discuss the mechanisms believed to power these transients and then highlight the unique…

High Energy Astrophysical Phenomena · Physics 2010-01-15 P. Romano , L. Sidoli , the SFXT Gang

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 multi-wavelength follow up of this class of transients in real time. Here we present…

Neutron monitors are a standard tool for high-precision continuous monitoring of galactic cosmic ray flux variations arising from variations in heliospheric conditions and solar activity for space weather applications. These measurements…

Instrumentation and Methods for Astrophysics · Physics 2026-02-09 Kobelev P. G. , Maurchev E. A. , Yanke V. G

The BeppoSAX Wide Field Cameras have been successful in detecting gamma-ray bursts in the 2--26 keV energy range. While most detected bursts are also strong emitters at higher energies, a significant fraction have anomalously low gamma-ray…

Having achieved 'first-light' right before the opening ceremony on September 25, 2016, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) is being busily commissioned. Its innovative design requires ~1000 points to be measured…

Instrumentation and Methods for Astrophysics · Physics 2018-05-09 Di Li , Pei Wang , Lei Qian , Marko Krco , Alex Dunning , Peng Jiang , Youling Yue , Chenjin Jin , Yan Zhu , Zhichen Pan , Rendong Nan

Gamma-rays provide a powerful insight into the non-thermal universe and perhaps a unique probe for new physics beyond the standard model. Current experiments are already giving results in the physics of acceleration of cosmic rays in…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Michele Doro

Current time-domain wide-field sky surveys generally operate with few-degree-sized fields and take many individual images to cover large sky areas each night. We present the design and project status of the Evryscope ("wide-seer"), which…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Nicholas M. Law , Octavi Fors , Philip Wulfken , Jeffrey Ratzloff , Dustin Kavanaugh

The study of the hard (E>10 keV) energy spectra of X-ray binary pulsars can give a wealth of information on the physical processes that occur close to the neutron star surface. Extreme matter regimes are probed, and precious information on…

Astrophysics · Physics 2007-05-23 Mauro Orlandini

The time-variable electromagnetic sky has been well-explored at a wide range of wavelengths. Numerous high-energy space missions take advantage of the dark Gamma-ray and X-ray sky and utilize very wide field detectors to provide almost…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 I. Sagiv , A. Gal-Yam , E. O. Ofek , E. Waxman , O. Aharonson , E. Nakar , D. Maoz , B. Trakhtenbrot , S. R. Kulkarni , E. S. Phinney , J. Topaz , C. Beichman , J. Murthy , S. P. Worden

The Nuclear Spectroscopic Telescope Array (NuSTAR) enables detailed high-energy X-ray observations from 3--79 keV, but its performance can be constrained by telemetry saturation when observing bright sources, leading to reduced effective…

The Constellation X-ray Mission is a high throughput X-ray facility emphasizing observations at high spectral resolution (E/\Delta E \sim 300-3000), and broad energy bandpass (0.25-40 keV). Constellation-X will provide a factor of nearly…

Astrophysics · Physics 2009-10-31 Azita Valinia , Nicholas White , Harvey Tananbaum , the Constellation-X Team

We present a mission concept for high resolution X-ray spectroscopy with a resolving power, R~6000, (c.f. R=<1000 for Chandra, XMM-Newton). This resolution is physics-driven, since it allows the thermal widths of coronal X-ray lines to be…

Astrophysics · Physics 2009-11-07 Martin Elvis , Fabrizio Fiore , the CWE Team