Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q201968> ?p ?o }
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- Q201968 subject Q10661.
- Q201968 subject Q7152546.
- Q201968 subject Q7152550.
- Q201968 subject Q8285181.
- Q201968 subject Q8302744.
- Q201968 subject Q8380112.
- Q201968 subject Q8609303.
- Q201968 abstract "Markarian 421 (Mrk 421, Mkn 421) is a blazar located in the constellation Ursa Major. The object is an active galaxy and a BL Lacertae object, and is a strong source of gamma rays. It is about 397 million light-years (redshift: z=0.0308 eq. 122Mpc) to 434 million light-years (133Mpc) from the Earth. It is one of the closest blazars to Earth, making it one of the brightest quasars in the night sky. It is suspected to have a supermassive black hole (SMBH) at its center due to its active nature, and has a companion galaxy (Markarian 421-5) that is fueling the gas jets observed pointing away from the galaxy.It was first determined to be a very high energy gamma ray emitter in 1992 by M. Punch at the Whipple Observatory, and an extremely rapid outburst in very high energy gamma rays (15-minute rise-time) was measured in 1996 by J. Gaidos at Whipple Observatory Markarian 421 also had an outburst in 2001 and is monitored by the Whole Earth Blazar Telescope project.Due to its brightness (around 13.3 magnitude, max. 11.6mag. and min. 16mag.) the object can also be viewed by amateurs in smaller telescopes.".
- Q201968 thumbnail Mark421-U3WS2701M.jpg?width=300.
- Q201968 wikiPageExternalLink mrk421.html.
- Q201968 wikiPageExternalLink Markarian_421.html.
- Q201968 wikiPageWikiLink Q10661.
- Q201968 wikiPageWikiLink Q11523.
- Q201968 wikiPageWikiLink Q1153471.
- Q201968 wikiPageWikiLink Q1194186.
- Q201968 wikiPageWikiLink Q12129.
- Q201968 wikiPageWikiLink Q195385.
- Q201968 wikiPageWikiLink Q2.
- Q201968 wikiPageWikiLink Q221221.
- Q201968 wikiPageWikiLink Q2703.
- Q201968 wikiPageWikiLink Q40392.
- Q201968 wikiPageWikiLink Q46587.
- Q201968 wikiPageWikiLink Q488563.
- Q201968 wikiPageWikiLink Q531.
- Q201968 wikiPageWikiLink Q654724.
- Q201968 wikiPageWikiLink Q7152546.
- Q201968 wikiPageWikiLink Q7152550.
- Q201968 wikiPageWikiLink Q7997520.
- Q201968 wikiPageWikiLink Q8285181.
- Q201968 wikiPageWikiLink Q8302744.
- Q201968 wikiPageWikiLink Q83373.
- Q201968 wikiPageWikiLink Q8380112.
- Q201968 wikiPageWikiLink Q8609303.
- Q201968 wikiPageWikiLink Q8918.
- Q201968 wikiPageWikiLink Q8928.
- Q201968 comment "Markarian 421 (Mrk 421, Mkn 421) is a blazar located in the constellation Ursa Major. The object is an active galaxy and a BL Lacertae object, and is a strong source of gamma rays. It is about 397 million light-years (redshift: z=0.0308 eq. 122Mpc) to 434 million light-years (133Mpc) from the Earth. It is one of the closest blazars to Earth, making it one of the brightest quasars in the night sky.".
- Q201968 label "Markarian 421".
- Q201968 depiction Mark421-U3WS2701M.jpg.