TY  - JOUR
AU  - Guerrero Román, Mercedes
AU  - Olmo, Gonzalo J.
AU  - Rubiera García, Diego
AU  - Sáez Chillón Gómez, Diego
PY  - 2022
DO  - 10.1103/PhysRevD.105.084057
SN  - 2470-0010
UR  - https://hdl.handle.net/20.500.14352/71802
T2  - Physical review D
AB  - The silhouette of a black hole having a critical curve (an unstable bound photon orbit) when illuminated by an optically thin accretion disk whose emission is confined to the equatorial plane shows a distinctive central brightness depression (the...
LA  - eng
PB  - Amer Physical Soc
KW  - Astronomy & Astrophysics
KW  - Physics
KW  - particles & fields
TI  - Light ring images of double photon spheres in black hole and wormhole spacetimes
TY  - journal article
VL  - 105
ER  -