AAS NOVA — Research Highlights 2020

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BDanielMayfield
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Re: LIGO/Virgo’s Newest Merger Defies Mass Expectations

Post by BDanielMayfield » Fri Sep 04, 2020 7:08 pm

bystander wrote:
Fri Sep 04, 2020 5:53 pm
BDanielMayfield wrote:
Fri Sep 04, 2020 5:30 pm
Was this GW event also detected by other em radiation telescopes?

Follow the links :wink:
bystander wrote:
Thu Sep 03, 2020 10:01 pm
viewtopic.php?t=40963
bystander wrote:
Wed Sep 02, 2020 5:20 pm
viewtopic.php?t=40714
bystander wrote:
Fri Jun 26, 2020 2:13 pm
Black Hole Collision May Have Exploded with Light
California Institute of Technology | 2020 Jun 25

Possible Flare from Black Hole Merger
APS Physics Focus | 2020 Jun 25

Candidate Electromagnetic Counterpart to the Binary Black Hole
Merger Gravitational-Wave Event S190521g
~ M. J. Graham et al
Yes Oh Link master (with respectful thanks). I thought that this was the case, but was uncertain. I see from the wording of the article titles that the causative link between the GW and EM signals is a bit uncertain too.

If this is confirmed it would be only the second event in the history of multi-messenger astronomy :?: :!:
Just as zero is not equal to infinity, everything coming from nothing is illogical.

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bystander
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History as Told by a Merger Background

Post by bystander » Sat Sep 12, 2020 2:50 pm

History as Told by a Merger Background
NOVA | American Astronomical Society | 2020 Sep 04
Tarini Konchady wrote:
To know the rate of binary black hole mergers over the lifetime of the universe is to know more about the universe’s evolution. For instance, how were binary black holes first created? Did ancient stars in the early universe play a role? And where does chemical composition come into the picture?

But before all that, we first need to answer this question: how do you even determine the history of binary black hole mergers? ...
Shouts and Murmurs: Combining Individual Gravitational-Wave Sources with the
Stochastic Background to Measure the History of Binary Black Hole Mergers
~ Thomas Callister et al
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An Update on Fast Radio Bursts: New Discovery in Our Own Galaxy

Post by bystander » Sat Sep 12, 2020 3:03 pm

An Update on Fast Radio Bursts:
New Discovery in Our Own Galaxy

NOVA | American Astronomical Society | 2020 Sep 09
Susanna Kohler wrote:
Have we recently spotted the first equivalent of a fast radio burst (FRB) — a mysterious and brief extragalactic flash of radio emission — in our own galaxy? Some astronomers think so, and argue that the new discovery solidifies the connection between these exotic radio bursts and powerfully magnetized neutron stars. ...

INTEGRAL Discovery of a Burst with Associated Radio Emission from the Magnetar SGR 1935+2154 ~ S. Mereghetti et al Implications of a Fast Radio Burst from a Galactic Magnetar ~ Ben Margalit et al
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A Satellite for Eurybates

Post by bystander » Sat Sep 12, 2020 3:15 pm

A Satellite for Eurybates
NOVA | American Astronomical Society | 2020 Sep 11
Susanna Kohler wrote:
Next year, the Lucy space probe will launch on a journey to visit several asteroids in our solar system. One of its destinations, 3548 Eurybates, has recently been discovered to harbor a satellite — providing Lucy with a new target to explore. ...

Detection of a Satellite of the Trojan Asteroid (3548) Eurybates — A Lucy Mission Target ~ K. S. Noll et al
viewtopic.php?t=38842
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Forecasting Eruptions of Solar Flares

Post by bystander » Thu Sep 17, 2020 4:36 pm

Forecasting Eruptions of Solar Flares
NOVA | American Astronomical Society | 2020 Sep 16
Susanna Kohler wrote:
Can we tell when a solar flare will lead to a potentially hazardous eruption of plasma from the Sun? A new look at hundreds of past solar flares may provide some clues. ...

Magnetic Flux of Active Regions Determining the Eruptive Character of Large Solar Flares ~ Ting Li et al
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