Absence of the predicted 2022 October outburst of OJ 287 and implications for binary SMBH scenarios

  • 📰 physorg_com
  • ⏱ Reading Time:
  • 22 sec. here
  • 2 min. at publisher
  • 📊 Qulity Score:
  • News: 12%
  • Publisher: 55%

Abstract. The project MOMO (Multiwavelength Observations and Modelling of OJ 287) was set up to test predictions of binary supermassive black hole (SMBH) scenar

United States News, United States Headlines

The project MOMO (Multiwavelength Observations and Modelling of OJ 287) was set up to test predictions of binary supermassive black hole (SMBH) scenarios and to understand disk-jet physics of the blazar OJ 287. After a correction, the precessing binary (PB) SMBH model predicted the next main outburst of OJ 287 in 2022 October, making the outburst well observable and the model testable. We have densely covered this period in our ongoing multi-frequency radio, optical, UV, and X-ray monitoring.

Instead, OJ 287 was at low optical–UV emission levels, declining further into November. The predicted thermal bremsstrahlung spectrum was not observed either, at any epoch. Further, applying scaling relations, we estimate a SMBH mass of OJ 287 of 10. The latest in a sequence of deep low-states that recur every 1–2 yrs is used to determine an upper limit on the Eddington ratio and on the accretion-disk luminosity.

We have summarized this news so that you can read it quickly. If you are interested in the news, you can read the full text here. Read more:


Thank you for your comment. Your comment will be published after being reviewed.
Please try again later.

Similar News:You can also read news stories similar to this one that we have collected from other news sources.

Firearms seized during traffic stops, fleeing-and-eluding cases climbed in Naperville in 2022, statistics showFleeing and eluding and firearm seizures increased in 2022 over the previous year and fatal drug overdoses were on the rise as well, according to Naperville Police Department's newest crime statistics. And I’ll bet most of the criminals had a Cook County address.
Source: chicagotribune - 🏆 8. / 91 Read more »

Miles Bridges Says 'I Might Be Back by March' After June 2022 Arrest“It's been a long process,' Miles Bridges said on Tuesday at halftime of Michigan State's home game against Indiana. “I might be back in March.' Bridges, who led Charlotte in scoring last season, has not played this season while under an NBA investigation.
Source: NBCPhiladelphia - 🏆 569. / 51 Read more »

2023 NBA All-Star Game Hits Record-Low, Down 27 Percent From 20222023 NBA All-Star Game Hits Record-Low, Down 27 Percent From 2022 - RealGM Wiretap Tatum, boring. nobody wants to watch a 3-point contest Sounds about right. Pretty bad across the board this year.
Source: RealGM - 🏆 580. / 51 Read more »

Missing Washington state boy found 8 months later — in MissouriBreadson John went missing in June 2022.
Source: nypost - 🏆 91. / 67 Read more »

First Installment of 2022 Cook County Property Tax Bills ArrivesThe first installment of property owners’ 2022 tax bills will be due approximately a month later than usual because of delays last year, officials said.
Source: wttw - 🏆 520. / 51 Read more »

BTS, SEVENTEEN, And Stray Kids Make Top 10 Of IFPI’s Global Artist Chart For 2022BTS, SEVENTEEN, And StrayKids Make Top 10 Of IFPI's Global Artist Chart For 2022 Slaykids💅🏼 I'm so proud of BTS, Skz and Svt. It honestly feels so good to see seventeen in the top 10, deserved. And nothing for pornpink 💀
Source: soompi - 🏆 574. / 51 Read more »