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Study of the X-ray selected BL Lac object 1727+502

โœ Scribed by J. H. Fan


Publisher
Springer Netherlands
Year
1995
Tongue
English
Weight
289 KB
Volume
229
Category
Article
ISSN
0004-640X

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On the difference between the X-ray sele
โœ P.S. Chen; H.G. Shan; Y.F. Gao ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 215 KB

By using results from the 2MASS observation, the differences between the X-ray selected BL Lac objects (XBLs) and the radio selected ones (RBLs) in the near infrared are discussed in this paper. It is found that, statistically, the RBLs have redder near infrared colors and steeper spectral indices i