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1. Measuring Spacetime: From Big Bang to Black Holes

   Space is not a boring static stage on which events unfold over time, but a dynamic entity with curvature, fluctuations and a rich life of its own...

   Max Tegmark in The Early Universe and Observational Cosmology

   Chapter
   

2. X-Ray Detectors for Astrophysics

   Astrophysical observations in the X-ray band require the detection of the photons in combination with an imaging system. This imaging system can vary...

   J. W. den Herder, M. Feroci, N. Meidinger in Handbook of X-ray and Gamma-ray Astrophysics

   Living reference work entry 2023
   

3. Cd(Zn)Te Detectors for Hard X-Ray and Gamma-Ray Astronomy

   The energy range of hard X-rays and gamma-rays is dominated by non-thermal emissions. Physical processes such as particle acceleration, accretion,...

   Aline Meuris, Kazuhiro Nagazawa, ... Ezio Caroli in Handbook of X-ray and Gamma-ray Astrophysics

   Living reference work entry 2023
   

4. The nearest neutron star candidate in a binary revealed by optical time-domain surveys

   The near-Earth (within ∼100 pc) supernova explosions in the past several million years can cause the global deposition of radioactive elements (e.g., ^60...

   Ling-Lin Zheng, Mouyuan Sun, ... Jifeng Liu in Science China Physics, Mechanics & Astronomy

   Article 20 November 2023

5. Close Binary Stars. IV: Applications of the Roche Model

   Abstract

   The article describes various ways of applying the Roche model to close binary systems. A review of the verification of the evolutionary...

   A. M. Cherepashchuk in Astronomy Reports

   Article 01 December 2022
   

6. Simultaneous X-ray/UV Observations of Ultraluminous X-ray Source Holmberg II X-1 with Indian Space Mission Astrosat

   Abstract

   We present the results of eight epochs of simultaneous UV and X-ray observations of the highly variable ultraluminous X-ray source (ULX)...

   A. Vinokurov, K. Atapin, ... J. Murthy in Astrophysical Bulletin

   Article 30 September 2022
   

7. Gamma-Ray Bursts

   Gamma-ray bursts (GRBs) are short and intense bursts of ∼100 keV−1 MeV photons, usually followed by long-lasting decaying afterglow emission in a...

   Yun-Wei Yu, He Gao, ... Bin-Bin Zhang in Handbook of X-ray and Gamma-ray Astrophysics

   Reference work entry 2024
   

8. Gravitational waves and electromagnetic transients

   The advanced gravitational wave (GW) detector network has started routine detection of signals from merging compact binaries. Data indicate that in a...

   Akshat Singhal, Sourav Palit, ... Varun Bhalerao in Journal of Astrophysics and Astronomy

   Article 24 August 2022
   

9. X-ray Properties of the Luminous Quasar PG 1634+706 at \(z=1.337\) from SRG and XMM-Newton Data

   Abstract

   In the fall of 2019, during the in-flight calibration phase of the SRG observatory, the onboard eROSITA and Mikhail Pavlinsky ART-XC...

   G. S. Uskov, S. Yu. Sazonov, ... R. A. Sunyaev in Astronomy Letters

   Article 01 November 2023
   

10. X-Ray Emission of Massive Stars and Their Winds

    Most types of massive stars display X-ray emission that is strongly affected by the properties of their stellar winds. Single nonmagnetic OB stars...

    Gregor Rauw in Handbook of X-ray and Gamma-ray Astrophysics

    Living reference work entry 2022
    

11. Low-Mass and Sub-stellar Eclipsing Binaries in Stellar Clusters

    We highlight the importance of eclipsing double-line binaries in our understanding on star formation and evolution. We review the recent discoveries...

    Nicolas Lodieu, Ernst Paunzen, Miloslav Zejda in Reviews in Frontiers of Modern Astrophysics

    Chapter 2020
    

12. Central Part of the Galaxy in X-Rays

    Abstract

    Studying the central part of the Galaxy is of great interest for observational astronomy and astrophysics. Based on the results from...

    R. A. Krivonos in Bulletin of the Russian Academy of Sciences: Physics

    Article 01 August 2019
    

13. A possible planet candidate in an external galaxy detected through X-ray transit

    Many lines of reasoning suggest that external galaxies should host planetary systems, but detecting them by methods typically used in our own Galaxy...

    Rosanne Di Stefano, Julia Berndtsson, ... Nia Imara in Nature Astronomy

    Article 25 October 2021
    

14. X-Ray Astronomy

    Although we use X-rays for penetrating scans of the human body, the Earth’s atmosphere is almost completely opaque to X-rays, and X-ray astronomy has...

    John Etienne Beckman in Multimessenger Astronomy

    Chapter 2021
    

15. In-Orbit Background for X-Ray Detectors

    In-orbit background is an unavoidable feature of all spaceborne X-ray detectors and arises both from cosmic sources (diffuse or point-like) and from...

    Riccardo Campana in Handbook of X-ray and Gamma-ray Astrophysics

    Living reference work entry 2022
    

16. The Hot Interstellar Medium

    The interstellar medium (ISM) of galaxies very often contains a gas component that reaches the temperature of several million degrees, whose physical...

    Emanuele Nardini, Dong-Woo Kim, Silvia Pellegrini in Handbook of X-ray and Gamma-ray Astrophysics

    Living reference work entry 2022
    

17. Probing the Circumgalactic Medium with X-ray Absorption Lines

    The circumgalactic medium (CGM) fills the dark matter halo of a galaxy, serving as a gas reservoir between the intergalactic medium and the stellar...

    Smita Mathur in Handbook of X-ray and Gamma-ray Astrophysics

    Reference work entry 2024
    

18. Ultraviolet Spectropolarimetry: on the origin of rapidly rotating B stars

    UV spectroscopy and spectropolarimetry hold the key to understanding certain aspects of massive stars that are largely inaccessible (or exceptionally...

    C. E. Jones, J. Labadie-Bartz, ... P. A. Scowen in Astrophysics and Space Science

    Article 14 December 2022
    

19. GRB-SN Association within the Binary-Driven Hypernova Model

    Abstract

    Long gamma-ray bursts (GRBs), in a few seconds, release luminosities (in gamma-rays) comparable to the luminosity of all stars in the...

    Y. Aimuratov, L. M. Becerra, ... S. R. Zhang in Astronomy Reports

    Article 01 December 2023
    

20. The Birth of a Relativistic Jet Following the Disruption of a Star by a Cosmological Black Hole

    A black hole can launch a powerful relativistic jet after it tidally disrupts a star. If this jet fortuitously aligns with our line of sight, the...

    Dheeraj R. Pasham, Matteo Lucchini, ... Sheng Yang in Nature Astronomy

    Article 30 November 2022