Of dusty tori and black holes

Article Abstract:

A massive black hole in the center of the NGC4258 galaxy has been discovered. The water maser and rotating gas emission from the central region of NGC4258 were observed. The observations and the spectral lines indicate the existence of large masers which can only be a black hole. These observations were conducted using very-long-baseline interferometry to study the megamaser characteristics.

Research, Galactic nuclei

---

Imaging black holes

Article Abstract:

Issues are presented concerning the development of X-ray interferometry in a space telescope due for launch around 2015. The telescope will study black holes and will have angular resolution 1,000 times greater than existing telescopes.

Innovations, Product development, Astronomy, X-ray telescope, X-ray telescopes

---

Correlated fast X-ray and optical variability in the black-hole candidate XTE J118+480

Article Abstract:

Research is presented concerning optical observations which were carried out simultaneously with high-time-resolution X-ray observations on XTE J118+480, a black-hole candidate. The correlation between the emissions is discussed.

Letter to the Editor

Similar abstracts:

• Abstracts: Dimeric association and segmental virability in the structure of human CD4. Structural basis for activation of human lymphocyte kinase Lck upon tyrosine phosphorylation
• Abstracts: Ice cores and mammoth extinction. Contrasting atmospheric and climate dynamics of the last-glacial and Holocene periods
• Abstracts: California spotted owl habitat selection in the central Sierra Nevada
• Abstracts: Plankton cooled in a greenhouse. Elevated CO2 increases productivity and invasive species success in an arid ecosystem

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.