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Pregled bibliografske jedinice broj: 626089

Formation of photon spheres in boson stars with a nonminimally coupled field

Horvat, Dubravko; Ilijić, Saša; Kirin, Anamarija; Naranči, Zoran
Formation of photon spheres in boson stars with a nonminimally coupled field // Classical and quantum gravity, 30 (2013), 095014-1 doi:10.1088/0264-9381/30/9/095014 (međunarodna recenzija, članak, znanstveni)

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Naslov
Formation of photon spheres in boson stars with a nonminimally coupled field

Autori
Horvat, Dubravko ; Ilijić, Saša ; Kirin, Anamarija ; Naranči, Zoran

Izvornik
Classical and quantum gravity (0264-9381) 30 (2013); 095014-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Boson star; photon sphere; scalar field; nonminimal coupling

Sažetak
A static, spherically symmetric, asymptotically flat spacetime may allow for circular, closed null-geodesics which are said to belong to a photon sphere. In the context of gravitational lensing in the strong deflection regime, the presence of a photon sphere leads to an unbounded angle of deflection of light (multiple turns) and formation of relativistic images. In this paper, we show that photon spheres may form in some configurations of boson stars constructed with a free massive complex scalar field nonminimally coupled to gravity. Assuming that the boson star is transparent to light, photon spheres would give rise not only to phenomena in the realm of strong gravitational lensing, but also to considerably increased photon flux in the central region of the star, relative to the flux in its surroundings.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
036-0982930-3144 - Klasična i kvantna teorija nelinearnih fizikalnih polja i struktura (Horvat, Dubravko, MZO ) ( CroRIS)

Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb

Profili:

Avatar Url Zoran Narančić (autor)

Avatar Url Saša Ilijić (autor)

Avatar Url Dubravko Horvat (autor)

Poveznice na cjeloviti tekst rada:

doi stacks.iop.org arxiv.org iopscience.iop.org

Citiraj ovu publikaciju:

Horvat, Dubravko; Ilijić, Saša; Kirin, Anamarija; Naranči, Zoran
Formation of photon spheres in boson stars with a nonminimally coupled field // Classical and quantum gravity, 30 (2013), 095014-1 doi:10.1088/0264-9381/30/9/095014 (međunarodna recenzija, članak, znanstveni)
Horvat, D., Ilijić, S., Kirin, A. & Naranči, Z. (2013) Formation of photon spheres in boson stars with a nonminimally coupled field. Classical and quantum gravity, 30, 095014-1 doi:10.1088/0264-9381/30/9/095014.
@article{article, author = {Horvat, Dubravko and Iliji\'{c}, Sa\v{s}a and Kirin, Anamarija and Naran\v{c}i, Zoran}, year = {2013}, pages = {095014-1-095014-12}, DOI = {10.1088/0264-9381/30/9/095014}, keywords = {Boson star, photon sphere, scalar field, nonminimal coupling}, journal = {Classical and quantum gravity}, doi = {10.1088/0264-9381/30/9/095014}, volume = {30}, issn = {0264-9381}, title = {Formation of photon spheres in boson stars with a nonminimally coupled field}, keyword = {Boson star, photon sphere, scalar field, nonminimal coupling} }
@article{article, author = {Horvat, Dubravko and Iliji\'{c}, Sa\v{s}a and Kirin, Anamarija and Naran\v{c}i, Zoran}, year = {2013}, pages = {095014-1-095014-12}, DOI = {10.1088/0264-9381/30/9/095014}, keywords = {Boson star, photon sphere, scalar field, nonminimal coupling}, journal = {Classical and quantum gravity}, doi = {10.1088/0264-9381/30/9/095014}, volume = {30}, issn = {0264-9381}, title = {Formation of photon spheres in boson stars with a nonminimally coupled field}, keyword = {Boson star, photon sphere, scalar field, nonminimal coupling} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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