Highlights from AAS Nova: 9-29 December 2018
Susanna Kohler American Astronomical Society (AAS)
AAS Nova provides brief highlights of recently published articles from the AAS journals, i.e., The Astronomical Journal (AJ) and The Astrophysical Journal (ApJ), ApJ Letters, and ApJ Supplements. The website's intent is to gain broader exposure for AAS authors and to provide astronomy researchers and enthusiasts with summaries of recent, interesting research across a wide range of astronomical fields.
The following are the AAS Nova highlights from the past three weeks; follow the links to read more, or visit the AAS Nova webpage for more posts.
28 December 2018
Selections from 2018: Identifying Exoplanets with Deep Learning
Thanks to machine-learning algorithms, the star Kepler-90 has been found to host eight planets — as many as our own Sun.
27 December 2018
Selections from 2018: Pinning Down Our Expanding Universe
New observations have provided the most precise measurement yet of how fast our universe is expanding.
26 December 2018
Selections from 2018: Using Lasers to Talk to ET
Could we communicate with distant extraterrestrial intelligence using lasers? A new study says yes.
21 December 2018
Selections from 2018: Discovery of Dark Galaxies
The discovery of starless galaxies may lend weight to one theory of galaxy formation.
20 December 2018
Selections from 2018: Revival of a Magnetar
J1622–4950, an ultra-magnetized neutron star that has been quiescent for three years, has now reawakened.
19 December 2018
Selections from 2018: Exploring Planets beyond Our Galaxy
Using microlensing, scientists have discovered a population of free-floating planets located beyond our own galaxy.
18 December 2018
Selections from 2018: A New Dim Galaxy Found
Amateur astronomers have discovered a new faint galaxy lurking in a known field.
17 December 2018
Selections from 2018: X-Rays from Alpha Centauri
Long-term X-ray observations of our closest neighboring star system, Alpha Centauri AB, reveal these stars’ flaring histories.
14 December 2018
A Jet from Neutron Star Merger GW170817
In August 2017, we detected gravitational waves from the collision of two neutron stars. What can observations from the months after the event tell us about the presence or absence of relativistic jets?
12 December 2018
What Are Starspots Like on Sun-Like Stars?
There are a lot of Sun-like stars in the universe. Are they as identical as the name suggests, or are there important differences between them?
11 December 2018
A Change in the Tides
Astrobites reports on how tidal forces between planets may be an important factor when considering tightly packed planetary systems like TRAPPIST-1.
10 December 2018
Featured Image: A Supernova Remnant in the Large Magellanic Cloud
This dramatic image reveals N49, the brightest supernova remnant in the Large Magellanic Cloud.