First Light from a Gravitational Wave Event (GW170817)

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First Light from a Gravitational Wave Event (GW170817)

Postby bystander » Mon Oct 16, 2017 2:25 pm

NASA Missions Catch First Light from a Gravitational-Wave Event
NASA | Chandra | JPL-Caltech | Hubble | Spitzer | Swift | Fermi | 2017 Oct 16

Radio “Eyes” Unlocking Secrets of Neutron-Star Collision
National Radio Astronomy Observatory | 2017 Oct 16

Merging Neutron Stars Scatter Gold & Platinum into Space
European Southern Observatory | 2017 Oct 16

Hubble Observes Source of Gravitational Waves for the First Time
ESA Hubble Science Release | 2017 Oct 16

Hawaii Astronomers Help Reshape Our Understanding of the Universe
University of Hawaii | Institute for Astronomy | 2017 Oct 16

Australians Confirm Radio Emission from Gravitational Wave Event
University of Sydney | 2017 Oct 16

MeerKAT Contributes to International Collaboration & Major Discovery
Square Kilometer Array, South Africa | 2017 Oct 16

Astronomers See Light Show Associated with Gravitational Waves
Harvard Smithsonian Center for Astrophysics | 2017 Oct 16

Gravitational Waves Detected for First Time from Two Stars Colliding
Australian National University | 2017 Oct 16

Gravitational Waves Shed First Light on Mergers of Neutron Stars
French National Center for Scientific Research | 2017 Oct 16

Astronomers Feast on First Light from Gravitational Wave Event
Gemini Observatory | 2017 Oct 16

Astronomers First to See Source of Gravitational Waves in Visible Light
Dunlop Institute of Astronomy & Astrophysics | Toronto University | 2017 Oct 16

Global Telescope Network Catches Fleeting Kilonova for the First Time
Las Cumbres Observatory | 2017 Oct 16

First Observations of Merging Neutron Stars Mark New Era in Astronomy
University of California, Santa Cruz | 2017 Oct 16

Caltech-Led Teams Strike Cosmic Gold
California Institute of Technology | 2017 Oct 16

Scientists Detect Light from Gravitational Waves Event
Universities Space Research Association | 2017 Oct 16

First detection of gravitational waves produced by colliding neutron stars
National Science Foundation | LIGO/Virgo Collaborations | 2017 Oct 16

Cosmic Forge of Rare Heavy Elements Discovered
National Optical Astronomy Observatory | 2017 Oct 16

A new era of astronomy begins with first observation of neutron star merger
Carnegie Institution for Science | 2017 Oct 16

Astronomers Strike Cosmic Gold with Neutron Star Merger
University of California, Berkeley | 2017 Oct 16

ALMA and About 70 Observatories to Probe for LIGO-Virgo’s Gravitational Waves Detection
ALMA Observatory | 2017 Oct 16

Gamma-Ray Burst & Visible Afterglow Seen with Gravitational Waves
Max Planck Institute for Extraterrestrial Physics | 2017 Oct 16

Gravitational Waves & Light Reveal Merger of Two Neutron Stars
Max Planck Institute for Astrophysics | 2017 Oct 16

Researchers Usher in Era of Multimessenger Astronomy with LIGO Discovery
Rochester Institute of Technology | 2017 Oct 16

Astronomers Detect Colliding Neutron Stars for First Time
Northwestern University | 2017 Oct 16

Crashing Neutron Stars Unlock Secrets of the Universe
Science & Technology Facility Council, UK | 2017 Oct 16

Gravitational waves + new clues from space reveal new way to make a black hole
Penn State University | 2017 Oct 16

Scientists reveal first light from stellar collision discovered by gravitational waves
University of Leicester | 2017 Oct 16

Researchers Detect Gravitational Waves from Colliding Neutron Stars
University of Washington | 2017 Oct 16

Team Supports Detection of Light from Gravitational-Wave Source
Arizona State University | 2017 Oct 16

28 Years Later, LIGO Confirms 1989 Hebrew University Prediction
Hebrew University of Jerusalem | 2017 Oct 16

Gravitational Waves Detected Following Collision of Neutron Stars
American Friends of Tel Aviv University | 2017 Oct 16

Scientists Spot Explosive Counterpart of LIGO/Virgo's Latest Gravitational Waves
Fermi National Accelerator Laboratory | 2017 Oct 16

Latest Gravitational-Wave Detection Opens New Era for Astronomy
McGill University | 2017 Oct 16

Gamma-Ray Burst Detection Just What Researchers Predicted
Oregon State University | 2017 Oct 16

LIGO & Virgo Detect Gravitational Waves from Colliding Neutron Stars
West Virginia University | 2017 Oct 16

Integral Sees Blast Travelling with Gravitational Waves
ESA | Space Science | 2017 Oct 16
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby geckzilla » Tue Oct 17, 2017 2:56 am

Geez, bystander. Got your work cut out for you today.
Just call me "geck" because "zilla" is like a last name.

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ApJL Special Issue with Focus on GW170817

Postby bystander » Tue Oct 17, 2017 1:29 pm

Focus on the Electromagnetic Counterpart of the Neutron Star Binary Merger GW170817
Astrophysical Journal Letters | 848(2) | 2017 Oct 20

Multi-messenger Observations of a Binary Neutron Star Merger
B. P. Abbott et al. 2017 ApJL 848(2):L12 DOI: 10.3847/2041-8213/aa91c9
arXiv.org > astro-ph > arXiv:1710.05833 > 16 Oct 2017

Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
B. P. Abbott et al. 2017 ApJL 848(2):L13 DOI: 10.3847/2041-8213/aa920c
arXiv.org > astro-ph > arXiv:1710.05834 > 16 Oct 2017

An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
A. Goldstein et al. 2017 ApJL 848(2):L14 DOI: 10.3847/2041-8213/aa8f41
arXiv.org > astro-ph > arXiv:1710.05446 > 16 Oct 2017

INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational-wave Event GW170817
V. Savchenko et al. 2017 ApJL 848(2):L15 DOI: 10.3847/2041-8213/aa8f94
arXiv.org > astro-ph > arXiv:1710.05449 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
I. Discovery of the Optical Counterpart Using the Dark Energy Camera

M. Soares-Santos et al. 2017 ApJL 848(2):L16 DOI: 10.3847/2041-8213/aa9059
arXiv.org > astro-ph > arXiv:1710.05459 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
II. UV, Optical, and Near-infrared Light Curves and Comparison to Kilonova Models

P. S. Cowperthwaite et al. 2017 ApJL 848(2):L17 DOI: 10.3847/2041-8213/aa8fc7
arXiv.org > astro-ph > arXiv:1710.05840 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
III. Optical and UV Spectra of a Blue Kilonova from Fast Polar Ejecta

M. Nicholl et al. 2017 ApJL 848(2):L18 DOI: 10.3847/2041-8213/aa9029
arXiv.org > astro-ph > arXiv:1710.05456 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
IV. Detection of Near-infrared Signatures of r-process Nucleosynthesis with Gemini-South

R. Chornock et al. 2017 ApJL 848(2):L19 DOI: 10.3847/2041-8213/aa905c
arXiv.org > astro-ph > arXiv:1710.05454 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
V. Rising X-Ray Emission from an Off-axis Jet

R. Margutti et al. 2017 ApJL 848(2):L20 DOI: 10.3847/2041-8213/aa9057
arXiv.org > astro-ph > arXiv:1710.05431 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
VI. Radio Constraints on a Relativistic Jet and Predictions for Late-time Emission from the Kilonova Ejecta

K. D. Alexander et al. 2017 ApJL 848(2):L21 DOI: 10.3847/2041-8213/aa905d
arXiv.org > astro-ph > arXiv:1710.05457 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
VII. Properties of the Host Galaxy and Constraints on the Merger Timescale

P. K. Blanchard et al. 2017 ApJL 848(2):L22 DOI: 10.3847/2041-8213/aa9055
arXiv.org > astro-ph > arXiv:1710.05458 > 16 Oct 2017

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817.
VIII. A Comparison to Cosmological Short-duration Gamma-Ray Bursts

W. Fong et al. 2017 ApJL 848(2):L23 DOI: 10.3847/2041-8213/aa9018
arXiv.org > astro-ph > arXiv:1710.05438 > 16 Oct 2017

The Discovery of the Electromagnetic Counterpart of GW170817: Kilonova AT 2017gfo/DLT17ck
Stefano Valenti et al. 2017 ApJL 848(2):L24 DOI: 10.3847/2041-8213/aa8edf
arXiv.org > astro-ph > arXiv:1710.05854 > 16 Oct 2017

A Deep Chandra X-Ray Study of Neutron Star Coalescence GW170817
Daryl Haggard et al. 2017 ApJL 848(2):L25 DOI: 10.3847/2041-8213/aa8ede
arXiv.org > astro-ph > arXiv:1710.05852 > 16 Oct 2017

The Unprecedented Properties of the First Electromagnetic Counterpart to a Gravitational-wave Source
M. R. Siebert et al. 2017 ApJL 848(2):L26 DOI: 10.3847/2041-8213/aa905e
arXiv.org > astro-ph > arXiv:1710.05440 > 16 Oct 2017

The Emergence of a Lanthanide-rich Kilonova Following the Merger of Two Neutron Stars
N. R. Tanvir et al. 2017 ApJL 848(2):L27 DOI: 10.3847/2041-8213/aa90b6
arXiv.org > astro-ph > arXiv:1710.05455 > 16 Oct 2017

The Environment of the Binary Neutron Star Merger GW170817
A. J. Levan et al. 2017 ApJL 848(2):L28 DOI: 10.3847/2041-8213/aa905f
arXiv.org > astro-ph > arXiv:1710.05444 > 16 Oct 2017

Observations of the First Electromagnetic Counterpart to a Gravitational-wave Source by the TOROS Collaboration
M. C. Díaz et al. 2017 ApJL 848(2):L29 DOI: 10.3847/2041-8213/aa9060
arXiv.org > astro-ph > arXiv:1710.05844 > 16 Oct 2017

The Old Host-galaxy Environment of SSS17a, the First Electromagnetic Counterpart to a Gravitational-wave Source
Y.-C. Pan et al. 2017 ApJL 848(2):L30 DOI: 10.3847/2041-8213/aa9116
arXiv.org > astro-ph > arXiv:1710.05439 > 16 Oct 2017

The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817
Jens Hjorth et al. 2017 ApJL 848(2):L31 DOI: 10.3847/2041-8213/aa9110
arXiv.org > astro-ph > arXiv:1710.05856 > 16 Oct 2017

The Rapid Reddening and Featureless Optical Spectra of the Optical Counterpart of GW170817, AT 2017gfo, during the First Four Days
Curtis McCully et al. 2017 ApJL 848(2):L32 DOI: 10.3847/2041-8213/aa9111
arXiv.org > astro-ph > arXiv:1710.05853 > 16 Oct 2017

Optical Follow-up of Gravitational-wave Events with Las Cumbres Observatory
Iair Arcavi et al. 2017 ApJL 848(2):L33 DOI: 10.3847/2041-8213/aa910f
arXiv.org > astro-ph > arXiv:1710.05842 > 16 Oct 2017

A Neutron Star Binary Merger Model for GW170817/GRB 170817A/SSS17a
A. Murguia-Berthier et al. 2017 ApJL 848(2):L34 DOI: 10.3847/2041-8213/aa91b3
arXiv.org > astro-ph > arXiv:1710.05453 > 16 Oct 2017
Last edited by bystander on Tue Oct 17, 2017 6:27 pm, edited 1 time in total.
Reason: added arXiv links
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby neufer » Tue Oct 17, 2017 2:31 pm

Click to play embedded YouTube video.
Art Neuendorffer

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GW170817 early relase papers at Nature, Science, and Physical Review Lettrs

Postby bystander » Tue Oct 17, 2017 4:22 pm

The X-ray counterpart to the gravitational-wave event GW170817
E. Troja et al. 2017 Nature DOI: 10.1038/nature24290
arXiv.org > astro-ph > arXiv:1710.05433 > 16 Oct 2017

Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event
Daniel Kasen et al. 2017 Nature DOI: 10.1038/nature24453
arXiv.org > astro-ph > arXiv:1710.05463 > 16 Oct 2017

Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger
Iair Arcavi et al. 2017 Nature DOI: 10.1038/nature24291
arXiv.org > astro-ph > arXiv:1710.05843 > 16 Oct 2017

Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger
E. Pian et al. 2017 Nature DOI: 10.1038/nature24298
arXiv.org > astro-ph > arXiv:1710.05858 > 16 Oct 2017

A kilonova as the electromagnetic counterpart to a gravitational-wave source
S. J. Smartt et al. 2017 Nature DOI: 10.1038/nature24303
arXiv.org > astro-ph > arXiv:1710.05841 > 16 Oct 2017

A gravitational-wave standard siren measurement of the Hubble constant
B. P. Abbott et al. 2017 Nature DOI: 10.1038/nature24471
arXiv.org > astro-ph > arXiv:1710.05835 > 16 Oct 2017

The unpolarized macronova associated with the gravitational wave event GW 170817
S. Covino et al. 2017 Nature Astronomy DOI: 10.1038/s41550-017-0285-z
arXiv.org > astro-ph > arXiv:1710.05849 > 16 Oct 2017

Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis
M. R. Drout et al. 2017 Science DOI: 10.1126/science.aaq0049
arXiv.org > astro-ph > arXiv:1710.05443 > 16 Oct 2017

Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger
B. J. Shappee et al. 2017 Science DOI: 10.1126/science.aaq0186
arXiv.org > astro-ph > arXiv:1710.05432 > 16 Oct 2017

Illuminating gravitational waves: A concordant picture of photons from a neutron star merger
M. M. Kasliwal et al. 2017 Science DOI: 10.1126/science.aap9455
arXiv.org > astro-ph > arXiv:1710.05436 > 16 Oct 2017

A radio counterpart to a neutron star merger
G. Hallinan et al. 2017 Science DOI: 10.1126/science.aap9855
arXiv.org > astro-ph > arXiv:1710.05435 > 16 Oct 2017

Swift and NuSTAR observations of GW170817: Detection of a blue kilonova
P. A. Evans et al. 2017 Science DOI: 10.1126/science.aap9580
arXiv.org > astro-ph > arXiv:1710.05437 > 16 Oct 2017

Electromagnetic evidence that SSS17a is the result of a binary neutron star merger
C. D. Kilpatrick et al. 2017 Science DOI: 10.1126/science.aaq0073
arXiv.org > astro-ph > arXiv:1710.05434 > 16 Oct 2017

Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source
D. A. Coulter et al. 2017 Science DOI: 10.1126/science.aap9811
arXiv.org > astro-ph > arXiv:1710.05452 > 16 Oct 2017

GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
B. P. Abbott et al. (LIGO/Virgo) 2017 PRL DOI: 10.1103/PhysRevLett.119.161101
arXiv.org > astro-ph > arXiv:1710.05832 > 16 Oct 2017
Last edited by bystander on Tue Oct 17, 2017 7:02 pm, edited 1 time in total.
Reason: added arXiv links
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby MargaritaMc » Tue Oct 17, 2017 7:30 pm

Yoicks, bystander - is there any science publication that HASN'T published on this?!
Remember, you saw it here ↓ first 8-)
viewtopic.php?f=31&t=37507&p=275926#p274199
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby MargaritaMc » Tue Oct 17, 2017 7:40 pm

I'll add this article from Physics, the APS journal.
Viewpoint: Neutron Star Merger Seen and Heard
Maura McLaughlin, 

https://physics.aps.org/articles/v10/114
which I found to be a particularly succinct and informative summary
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS

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Re: First Light from a Gravitational Wave Event (GW170817)

Postby bystander » Tue Oct 17, 2017 7:59 pm

MargaritaMc wrote:I'll add this article from Physics, the APS journal.
Viewpoint: Neutron Star Merger Seen and Heard
Maura McLaughlin, 

https://physics.aps.org/articles/v10/114
which I found to be a particularly succinct and informative summary

The intro to the special issue at ApJL was good.
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby bystander » Tue Oct 17, 2017 8:13 pm

Know the quiet place within your heart and touch the rainbow of possibility; be
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby MargaritaMc » Tue Oct 17, 2017 8:15 pm

bystander wrote:The intro to the special issue at ApJL was good.

Yes, it was. I've made PDFs of both that one and the one by McLaughlin for ease of reference. (And I can make notes on them)

Actually, the New York Times piece was good too - very useful to pass on to friends who want to know what I am so very excited about!
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS

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Re: First Light from a Gravitational Wave Event (GW170817)

Postby BDanielMayfield » Thu Oct 19, 2017 3:28 pm

This was and is a great confirmation of expectations as to the site of heavy element production in the universe.

Recipe for making gold, uranium, etc.:

    (1) Condense two close orbiting massive stars out of interstellar medium.
    (2) Allow cores of two stars to cook light elements up to iron.
    (3) Return excess gas and light elements back to interstellar medium via core collapse supernovae, producing binary neutron star pair.
    (4) Allow orbital decay to bring two neutron stars into contact, producing kilonova.

Alchemy is easy, if you have enough time and material.

Bruce
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby MargaritaMc » Thu Oct 19, 2017 4:06 pm

BDanielMayfield wrote:
Alchemy is easy, if you have enough time and material.

Bruce

That's very nice, Bruce. Thank you!
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS

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Re: First Light from a Gravitational Wave Event (GW170817)

Postby BDanielMayfield » Thu Oct 19, 2017 4:15 pm

MargaritaMc wrote:
BDanielMayfield wrote:
Alchemy is easy, if you have enough time and material.

Bruce

That's very nice, Bruce. Thank you!


Your very welcome. And all four steps are automatic, due to universal law.

Bruce
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby Ann » Fri Oct 20, 2017 12:15 am

MargaritaMc wrote:
BDanielMayfield wrote:
Alchemy is easy, if you have enough time and material.

Bruce

That's very nice, Bruce. Thank you!


I love it too.

Isaac Newton, Tycho Brahe, grumpy Swedish writer August Strindberg (world famous in Stockholm), and others, were missing a few ingredients.

Ann
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Re: First Light from a Gravitational Wave Event (GW170817)

Postby Chris Peterson » Fri Oct 20, 2017 12:24 am

BDanielMayfield wrote:
MargaritaMc wrote:
BDanielMayfield wrote:Alchemy is easy, if you have enough time and material.
Bruce

That's very nice, Bruce. Thank you!

Your very welcome. And all four steps are automatic, due to universal law.

We call those "one pot meals".
Chris

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Re: First Light from a Gravitational Wave Event (GW170817)

Postby MargaritaMc » Sun Oct 22, 2017 5:00 pm

The Sky & Telescope article by Govert Schilling (who as always is an excellent read)
http://www.skyandtelescope.com/astronomy-news/astronomers-catch-gravitational-waves-from-colliding-neutron-stars/
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS

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HITS: Neutron Stars on the Brink of Collapse (GW170817)

Postby bystander » Tue Dec 05, 2017 3:44 pm

Neutron Stars on the Brink of Collapse
Heidelberg Institute for Theoretical Studies | 2017 Dec 04

Neutron stars are the densest objects in the Universe; however, their exact characteristics remain unknown. Using simulations based on recent observations, a team of scientists including HITS researcher Dr. Andreas Bauswein has managed to narrow down the size of these stars.

When a very massive star dies, its core contracts. In a supernova explosion, the star’s outer layers are expelled, leaving behind an ultra-compact neutron star. For the first time, the LIGO and Virgo Observatories have recently been able to observe the merger of two neutron stars and measure the mass of the merging stars. Together, the neutron stars had a mass of 2.74 solar masses. Based on these observational data, an international team of scientists from Germany, Greece, and Japan including HITS astrophysicist Dr. Andreas Bauswein has managed to narrow down the size of neutron stars with the aid of computer simulations. The calculations suggest that the neutron star radius must be at least 10.7 km. The international research team’s results have been published in “Astrophysical Journal Letters.”

In neutron star collisions, two neutron stars orbit around each other, eventually merging to form a star with approximately twice the mass of the individual stars. In this cosmic event, gravitational waves – oscillations of spacetime – whose signal characteristics are related to the mass of the stars, are emitted. This event resembles what happens when a stone is thrown into water and waves form on the water’s surface. The heavier the stone, the higher the waves. ...

Neutron-Star Radius Constraints from GW170817 and Future Detections - Andreas Bauswein et al
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