Optical afterglow of the gamma-ray burst of 14 December 1997
Article Abstract:
It has been possible to detect an optical counterpart to the gamma-ray burst GRB971214. As with the previous two optical transients, it faded quickly over two weeks. It is therefore clear that the three events are optical afterglows of gamma-ray bursts. In the case of GRB971214, the position of the optical transient is 71 arcsec from the position of the X-ray afterglow in the SAX narrow-field instrument.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Prism adaptationto a rightward optical deviation rehabilitates left hemispatial neglect
Article Abstract:
Many right-hemisphere stroke patients exhibit hemispatial neglect affecting perception, attention and representation. A study looked at the way prism adaptation affected certain neglect symptoms. A positive effect for both sensorimotor and more cognitive spatial functions indicates that they share or rely on a common level of space representation linked to multisensory integration.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Photonic-bandgap microcavities in optical waveguides
Article Abstract:
Confining light to small volumes is implicated in optical emission properties. The properties of two and three dimensional Photonic-bandgap (PBG) materials (or photonic crystals) have traditionally been measured at microwave frequencies. PBG structure microcavity resonances have now been measured with a wavelength of 1.56 mu, a quality factor of 265 and modal volume of 0.055 mum.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Big planets and little stars. The optical counterparts of gamma-ray bursts. An asteroidal companion to the Earth
- Abstracts: Possible predictability in overflow from the Denmark Strait. Rewriting history is not possible
- Abstracts: Not everything is in the genes. The value of everything. What price ergonomics?: Ergonomists have a say in the design of almost everything in the modern world, but there is little evidence that their methods actually work
- Abstracts: DNA shuffling of a family of genes from diverse species accelerates directed evolution
- Abstracts: Keystone Dialogue on private lands. Attwater's prairie chicken: the conservation challenge and recommendations