Low level optical activity in MAXI J1820+070

M. Cristina Baglio, Jeroen Homan, David M. Russell, Payaswini Saikia, D. M. Bramich, Fraser Lewis, Paul Roche, Thabet Al Qaissieh, Aldrin Gabuya, Alejandro Palado

Research output: Contribution to journalArticle


The black hole X-ray binary MAXI J1820+070 recently showed signs of new outburst activity at optical wavelengths (ATel #14492) between 2021 March 7 and 20. Similarly, an increase in the 0.5-10 keV flux by a factor of ~3-4 was observed by Swift/XRT on 2021 March 29 (ATel #14495), which indicated that outburst activity had also started in X-rays.
Original languageEnglish (US)
JournalThe Astronomer's Telegram, No. 14582
StatePublished - Apr 1 2021


  • Binary
  • Black Hole
  • Transient


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