AAS NOVA — Research Highlights 2017

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Carrying Energy to the Corona with Waves

Postby bystander » Thu Nov 09, 2017 2:59 pm

Carrying Energy to the Corona with Waves
NOVA | American Astronomical Society | 2017 Nov 08

The solar corona has a problem: it’s weirdly hot! A new study explores how magnetic waves might solve the mystery of the unusually hot corona by transporting energy to the outer atmosphere of the Sun. ...

On Excited Frequencies for Alfvén Waves in a Coronal Arcade - Lucas A Tarr
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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A Look at the Milky Way’s Outskirts

Postby bystander » Sat Nov 18, 2017 2:17 pm

A Look at the Milky Way’s Outskirts
NOVA | American Astronomical Society | 2017 Nov 15

Studying the large-scale structure of the Milky Way is difficult given that we’re stuck in its interior — which means we can’t step back for a broad overview of our home. Instead, a recent study uses distant variable stars to map out a picture of what’s happening in the outskirts of our galaxy. ...

The Outer Halo of the Milky Way as Probed by RR Lyr Variables from the Palomar Transient Facility - Judith G. Cohen et al
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

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LIGO Finds Lightest Black-Hole Binary

Postby bystander » Sat Nov 18, 2017 2:23 pm

LIGO Finds Lightest Black-Hole Binary
NOVA | American Astronomical Society | 2017 Nov 17

Wednesday evening the Laser Interferometer Gravitational-wave Observatory (LIGO) collaboration quietly mentioned that they’d found gravitational waves from yet another black-hole binary back in June. This casual announcement reveals what is so far the lightest pair of black holes we’ve watched merge — opening the door for comparisons to the black holes we’ve detected by electromagnetic means. ...

GW170608: Observation of a 19-solar-mass Binary Black Hole Coalescence - LIGO Scientific Collaboration, Virgo Collaboration

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Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor


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