ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Fig. 1 The soft and hard X-ray measurements of NGC4151 compared with the MISO X and y measurements. The integral y-ray counting rate has been converted into a differential spectrum (hatched area) using a spectral index - 1. The Seyfert galaxy NGC4151 was one of the celestial objects observed ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/270319a0