Gravitational Telescope

Detecting Exoplanets by Gravitational Microlensing using a Small Telescope

Gravitational microlensing is a new technique that allows low-mass exoplanets to be detected at large distances of ~7kpc. This paper briefly outlines the principles of the method and describes the observational techniques. It shows that small (e.g. 0.35m) telescopes with a CCD camera can make unexpectedly useful observations of these events. © 2005 Society for Astronomical Science.

Present status of large-scale cryogenic gravitational wave telescope

The large-scale cryogenic gravitational wave telescope (LCGT) is the future project of the Japanese gravitational wave group. Two sets of 3 km arm length laser interferometric gravitational wave detectors will be built in a tunnel of Kamioka mine in Japan. LCGT will detect chirp waves from binary neutron star coalescence at 240 Mpc away with a S/N of 10. The expected number of detectable events...

The Einstein Telescope: a third-generation gravitational wave observatory

Advanced gravitational wave interferometers, currently under realization, will soon permit the detection of gravitational waves from astronomical sources. To open the era of precision gravitational wave astronomy, a further substantial improvement in sensitivity is required. The future space-based Laser Interferometer Space Antenna and the third-generation ground-based observatory Einstein Tele...

Source Telescope Source Telescope

High - resolution imaging of the gravitational lens candidate 1208 + 1011 with the Nordic Optical Telescope ?

The large-redshift (z = 3:8) quasar 1208+1011 has recently been discovered to be a gravitational lens candidate with a separation of 0: 00 47 between the two im-aged components (A and B). NOT (Nordic Optical Telescope) and HST (Hubble Space Telescope) studies from 1992 probing primarily the continuum light show that the ampliication of A relative to B is almost achromatic with the canonical val...