• Thumbnail for OJ 287
    OJ 287 is a BL Lac object 4 billion light-years from Earth that has produced quasi-periodic optical outbursts going back approximately 120 years, as first...
    12 KB (998 words) - 23:56, 15 July 2024
  • Thumbnail for Supermassive black hole
    believed to be a common consequence of galactic mergers. The binary pair in OJ 287, 3.5 billion light-years away, contains the most massive black hole in a...
    104 KB (11,041 words) - 21:31, 18 July 2024
  • Thumbnail for List of most massive black holes
    galaxies, there are even binary systems of supermassive black holes, see the OJ 287 system. Unambiguous dynamical evidence for SMBHs exists only in a handful...
    76 KB (5,741 words) - 08:17, 18 July 2024
  • EGSD2 J142033.66 525917.5 core black holes — galaxy hosting a dual AGN OJ 287 core black holes — a BL Lac object with a candidate binary supermassive...
    19 KB (2,002 words) - 16:03, 4 May 2024
  • Thumbnail for BL Lacertae object
    BL Lac objects. Some examples of BL Lac objects are BL Lacertae itself, OJ 287, AP Librae, PKS 2155-304, PKS 0521-365, Markarian 421, 3C 371, W Comae Berenices...
    8 KB (977 words) - 14:36, 17 July 2024
  • Thumbnail for Cancer (constellation)
    experiment conducted by Edward Fomalont and Sergei Kopeikin in September 2002. OJ 287 is a BL Lacertae object located 3.5 billion light years away that has produced...
    26 KB (3,026 words) - 20:38, 19 May 2024
  • galaxy OJ 287 confirmed Albert Einstein's general theory of relativity. M. Valtonen et al. (2008), A massive binary black-hole system in OJ 287 and a test...
    2 KB (163 words) - 10:07, 8 April 2021
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    J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930...
    7 KB (864 words) - 22:53, 25 February 2024
  • Thumbnail for Black hole
    Andromeda Galaxy, M32, M87, NGC 3115, NGC 3377, NGC 4258, NGC 4889, NGC 1277, OJ 287, APM 08279+5255 and the Sombrero Galaxy. It is now widely accepted that...
    164 KB (18,498 words) - 15:17, 17 July 2024
  • Thumbnail for Ergosphere
    J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930...
    9 KB (1,055 words) - 22:55, 2 May 2024
  • they eventually merge, but have not been confirmed. For example, quasar OJ 287 is inferred to have a binary supermassive black hole pair with an orbital...
    4 KB (336 words) - 07:24, 23 April 2024
  • J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930...
    12 KB (1,613 words) - 07:25, 18 November 2023
  • J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930...
    414 bytes (38 words) - 21:44, 30 January 2024
  • C.; Kidger, M.; et al. (2008), "A massive binary black-hole system in OJ 287 and a test of general relativity", Nature, 452 (7189): 851–853, arXiv:0809...
    193 KB (22,611 words) - 13:25, 29 June 2024
  • J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930...
    4 KB (394 words) - 06:20, 30 October 2023
  • J150243.09+111557.3 Sagittarius A* Centaurus A Phoenix Cluster PKS 1302-102 OJ 287 SDSS J0849+1114 TON 618 MS 0735.6+7421 NeVe 1 Hercules A 3C 273 Q0906+6930...
    4 KB (429 words) - 02:09, 29 September 2023
  • Least separation between binary central black holes, at 24 ly (7.4 pc) OJ 287 has an inferred pair with a 12-year orbital period, and thus would be much...
    116 KB (6,176 words) - 07:22, 18 July 2024
  • 0235+16, PKS 0420−01, PKS 0528+134, S5 0716+71, PKS 0735+17, OJ 248, OJ 49, 4C 71.07, OJ 287, S4 0954+65, Markarian 421, 4C 29.45, ON 231, 3C 273, 3C 279...
    26 KB (1,472 words) - 05:35, 10 June 2024
  • (active galactic nuclei with relativistic jets), including the objects OJ 287 and 3C 66A. His observations were used professional astronomers and he is...
    9 KB (949 words) - 01:28, 31 July 2023
  • computer scientist and amateur astronomer. He monitored the peculiar object OJ 287 for some two years. He also obtained deep-sky CCD images with limiting magnitude...
    216 KB (435 words) - 19:49, 12 July 2024
  • Thumbnail for Farm Cove Observatory
    magnitude measures to the British Astronomical Association campaign on Blazar OJ+287. Bowen, Matt (28 October 2009). "Kiwi spots asteroid before NASA". Eastern...
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  • Thumbnail for List of the most distant astronomical objects
    time. However, object must have been named or described. An object like OJ 287 is ignored even though it was detected as early as 1891 using photographic...
    140 KB (8,736 words) - 23:10, 16 July 2024
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    "OJ 2010/C 62/02". Official Journal of the European Union. 13 March 2010. Archived from the original on 4 August 2022. Retrieved 11 November 2023. "OJ...
    539 KB (7,084 words) - 21:41, 18 July 2024
  • Thumbnail for PKS 2131-021
    000 years (as viewed from the Earth). Supermassive black hole NGC 7727 OJ 287 Sbarufatti, B.; Treves, A.; Falomo, R.; Heidt, J.; Kotilainen, J.; Scarpa...
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    Care. 59 (5): 631–636. doi:10.4187/respcare.02640. PMID 24003241. O'Connell OJ (May 2014). "Is extended-release guaifenesin no better than a placebo?". Respir...
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  • Activos de Galaxias, reported the discovery of the host galaxy for blazar OJ 287. She has worked as a researcher at the UNAM Institute of Astronomy since...
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  • Thumbnail for Special territories of members of the European Economic Area
    accession treaty (OJ C 241, 29 August 1994) [3] Article 1 of Protocol 2 (on the Åland Islands) of the Finnish accession treaty (OJ C 241, 29 August 1994)...
    119 KB (9,939 words) - 10:28, 7 July 2024
  • Thumbnail for Hyundai Gamma engine
    (2012–2019) Hyundai i20 (PB) (2008–2011) Hyundai i30 (FD) (2007–2012) Hyundai ix20 (OJ) (2010–2019) Kia Cee'd (ED) (2006–2012) Kia Forte/Cerato (TD) (2008–2012)...
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    Treatment)". patient.info. Retrieved 14 March 2024. Bhatt S, Gething PW, Brady OJ, Messina JP, Farlow AW, Moyes CL, Drake JM, Brownstein JS, Hoen AG, Sankoh...
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  • protection and logistical support to U.S. forces in the Iraq War. 472 16 "The O.J. Verdict" Criminal justice, race/multicultural 60 minutes October 4, 2005 (2005-10-04)...
    430 KB (1,696 words) - 03:38, 19 July 2024