File:Mark421-U3WS2701M.jpg

Mark421-U3WS2701M.jpg (353 × 362像素,文件大小:36 KB,MIME类型:image/jpeg


摘要

描述
English: Cropped Hubble Space Telescope image of Blazar Markarian 421 with companion galaxy 421-5.
日期 May 24 1999 12:03PM
来源 Hubble Legacy Archive Image: 07281_27 WFPC2 F814W/F555W (color) B2+1101+38 (WFPC2 F555W PC1)
作者 Hubble Legacy Archive
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ACKNOWLEDGMENT FOR PUBLICATIONS --> Credit: NASA / STScI / Roberto Fanti

All refereed publications based on data obtained from the HLA are requested to carry the following footnote:

Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA).

In addition, publications of research supported by an STScI grant must carry the following acknowledgment:

Support for Program number ____________ was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555.

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