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Strong Gravitational Lensing and Microlensing of Supernovae. [PDF]

Space Sci Rev, 2023
Strong gravitational lensing and microlensing of supernovae (SNe) are emerging as a new probe of cosmology and astrophysics in recent years. We provide an overview of this nascent research field, starting with a summary of the first discoveries of ...
Suyu SH, Goobar A, Collett T, More A, Vernardos G.   +4 more
europepmc   +7 more sources

Strong Gravitational Lensing of Gravitational Waves: A Review

Universe, 2023
The first successful detection of gravitational waves (GWs) opened up a new window to study a realm of the most violent phenomena in the universe, such as coalescences of binary black holes (BH–BH), binary neutron stars (NS–NS), and mixed (BH–NS) systems,
Margherita Grespan, Marek Biesiada
doaj   +3 more sources

Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing. [PDF]

Space Sci Rev, 2022
Multiply lensed images of a same source experience a relative time delay in the arrival of photons due to the path length difference and the different gravitational potentials the photons travel through.
Birrer S, Millon M, Sluse D, Shajib AJ, Courbin F, Erickson S, Koopmans LVE, Suyu SH, Treu T.   +8 more
europepmc   +3 more sources

Detecting strong gravitational lensing of gravitational waves with TianQin [PDF]

Physical Review D, 2023
When gravitational waves (GWs) pass by a massive object on its way to Earth, a strong gravitational lensing effect will happen. Thus, the GW signal will be amplified, deflected, and delayed in time.
Xin-yi Lin, Jian-dong Zhang, Liang Dai, Shun-Jia Huang, Jianwei Mei   +4 more
semanticscholar   +5 more sources

Strong gravitational lensing’s ‘external shear’ is not shear [PDF]

Monthly Notices of the Royal Astronomical Society, 2023
The distribution of mass in galaxy-scale strong gravitational lenses is often modelled as an elliptical power law plus ‘external shear’, which notionally accounts for neighbouring galaxies and cosmic shear along our line of sight.
A. Etherington, J. Nightingale, R. Massey, S. Tam, Xiaoyue Cao, A. Niemiec, Q. He, A. Robertson, Ran Li, A. Amvrosiadis, S. Cole, J. Diego, C. Frenk, B. Frye, D. Harvey, M. Jauzac, A. Koekemoer, D. Lagattuta, S. Lange, M. Limousin, G. Mahler, E. Sirks, C. Steinhardt   +22 more
semanticscholar   +7 more sources

Strong Gravitational Lensing as a Probe of Dark Matter [PDF]

Space Science Reviews, 2023
Dark matter structures within strong gravitational lens galaxies and along their lines of sight leave a gravitational imprint on the multiple images of lensed sources.
S. Vegetti, S. Birrer, G. Despali, C. Fassnacht, D. Gilman, Y. Hezaveh, L., Perreault Levasseur, J. McKean, D. Powell, C. M. O'Riordan, G., Vernardos   +12 more
semanticscholar   +5 more sources

Strong gravitational lensing by $$Sgr A^*$$ S g r A ∗ and $$M87^*$$ M 87 ∗ black holes embedded in dark matter halo exhibiting string cloud and quintessential field

European Physical Journal C: Particles and Fields
We investigate the strong gravitational lensing phenomena caused by a black hole with a dark matter halo in the presence of cloud string and quintessence.
Niyaz Uddin Molla, Himanshu Chaudhary, G. Mustafa, Farruh Atamurotov, Ujjal Debnath, Dhruv Arora   +5 more
doaj   +2 more sources

Strong gravitational lensing by loop quantum gravity motivated rotating black holes and EHT observations [PDF]

The European Physical Journal C, 2023
We investigate gravitational lensing in the strong deflection regime by loop quantum gravity (LQG)-motivated rotating black hole (LMRBH) metrics with an additional parameter l besides mass M and rotation a .
J. Kumar, Shafqat Ul Islam, Sushant G. Ghosh   +2 more
semanticscholar   +1 more source

Constraining a modified gravity theory in strong gravitational lensing and black hole shadow observations [PDF]

Physical Review D, 2022
We study the strong gravitational lensing effect around rotating black holes in different gravity theories. By calculating the deflection angle of strong gravitational lensing, we evaluate the lensing observables including the image position, separation ...
Xiao-Mei Kuang, Zi-Yu Tang, Bin Wang, Anzhong Wang   +3 more
semanticscholar   +1 more source

Testing Strong Gravitational Lensing Effects of Supermassive Compact Objects with Regular Spacetimes [PDF]

Astrophysical Journal, 2022
We compare and contrast gravitational lensing, in the strong field limit, by the photon sphere in spherically symmetric regular electrically charged (REC) black holes (0 < b ≤ b E ) and with those by corresponding REC no-horizon spacetimes (b > b E ...
J. Kumar, Shafqat Ul Islam, Sushant G. Ghosh   +2 more
semanticscholar   +1 more source