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The x-ray spectrum of the BL Lac object PKS 2155-304

โœ Scribed by Jun-Feng Chen; Jun-Han You

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
205 KB
Volume
18
Category
Article
ISSN
0275-1062

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On the difference between the X-ray sele
On the difference between the X-ray selected and the radio selected BL Lac objects in the near infrared
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