AAS NOVA — Research Highlights 2017

Find out the latest thinking about our universe.
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Challenging the Model for Galactic Bulges

Postby bystander » Fri Mar 24, 2017 4:54 pm

Challenging the Model for Galactic Bulges
NOVA | American Astronomical Society | 2017 Mar 24

Galaxies of similar stellar mass to our own don’t all have the same bulge and black hole masses. So what determines how much mass will end up in the bulge and the black hole at the center of a Milky-Way-like galaxy? ...

Galaxies Grow Their Bulges and Black Holes in Diverse Ways - Eric F. Bell et al
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Observations from Sunrise

Postby bystander » Tue Mar 28, 2017 2:23 pm

Observations from Sunrise
NOVA | American Astronomical Society | 2017 Mar 27

On a cloudy but windless day in early summer 2013, a team of scientists gathered in Sweden to launch a balloon carrying the largest solar telescope to leave Earth. Now the team has published 13 papers describing what they learned from the spectacularly high-resolution ultraviolet observations of the Sun during the Sunrise II mission. ...

Special Issue on SUNRISE - Astrophysical Journal Supplement Series (arXiv preprints)

viewtopic.php?t=36998
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Counting Rogue Asteroids and Comets

Postby bystander » Wed Apr 05, 2017 5:03 pm

Counting Rogue Asteroids and Comets
NOVA | American Astronomical Society | 2017 Mar 29

How many comets, asteroids, and planetary bodies are floating through interstellar space, not gravitationally bound to any solar system? A new study explores this question and what its answer means for our understanding of how solar systems form. ...

An Observational Upper Limit on the Interstellar Number Density of Asteroids and Comets - Toni Engelhardt et al
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An Exo-Venus in the Solar Neighborhood

Postby bystander » Wed Apr 05, 2017 6:28 pm

An Exo-Venus in the Solar Neighborhood
NOVA | American Astronomical Society | 2017 Mar 31

Earth is great place for life — but Venus definitely isn’t. Both planets have similar masses and densities. So why did one evolve to support life, while the other turned into a barren and inhospitable hothouse? This is a question we might be able to answer if we can gather observations of other planets similar to Earth and Venus. The recent discovery of an exo-Venus in our solar neighborhood brings us one step closer to this goal! ...

Kepler-1649b: An Exo-Venus in the Solar Neighborhood - Isabel Angelo et al

Possible Venus Twin Discovered Around Dim Star
SETI Institute | 2017 Apr 06
Last edited by bystander on Fri Apr 07, 2017 2:05 pm, edited 1 time in total.
Reason: Added SETI Link
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ALMA Examines a Distant Quasar Host

Postby bystander » Wed Apr 05, 2017 6:41 pm

ALMA Examines a Distant Quasar Host
NOVA | American Astronomical Society | 2017 Apr 05

A team of scientists has used the Atacama Large Millimeter/submillimeter Array (ALMA) to explore the host galaxy of the most distant quasar known. Their observations may help us to build a picture of how the first supermassive black holes in the universe formed and evolved. ...

The Compact, ~1 kpc Host Galaxy of a Quasar at a Redshift of 7.1 - Bram Venemans et al

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The Search for Ringed Exoplanets

Postby bystander » Mon Apr 10, 2017 4:58 pm

The Search for Ringed Exoplanets
NOVA | American Astronomical Society | 2017 Apr 07

Are planetary rings as common in our galaxy as they are in our solar system? A new study demonstrates how we might search for ringed exoplanets — and then possibly finds one! ...

Toward Detection of Exoplanetary Rings via Transit Photometry: Methodology and a Possible Candidate - Masataka Aizawa et al
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PACMan to Help Sort Hubble Proposals

Postby bystander » Fri Apr 14, 2017 4:32 pm

PACMan to Help Sort Hubble Proposals
NOVA | American Astronomical Society | 2017 Apr 10

Every year, astronomers submit over a thousand proposals requesting time on the Hubble Space Telescope (HST). Currently, humans must sort through each of these proposals by hand before sending them off for review. Could this burden be shifted to computers? ...

The Proposal Auto-Categorizer and Manager for Time
Allocation Review at Space Telescope Science Institute
- Louis-Gregory Strolger et al
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New Discoveries Fill the Quasar Gap

Postby bystander » Fri Apr 14, 2017 4:39 pm

New Discoveries Fill the Quasar Gap
NOVA | American Astronomical Society | 2017 Apr 14

Quasars — active and luminous galactic centers — can be difficult to find at some high redshifts due to their camouflaging color. A team of scientists has now come up with a way to detect these distant monsters in spite of their disguise. ...

Discovery of 16 New z ~ 5.5 Quasars: Filling in the Redshift Gap of Quasar Color Selection - Jinyi Yang et al
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Habitability of the TRAPPIST-1 System

Postby bystander » Tue Apr 18, 2017 3:32 pm

Habitability of the TRAPPIST-1 System
NOVA | American Astronomical Society | 2017 Apr 14

The recent discovery of seven Earth-sized, terrestrial planets around an M dwarf star was met with excitement and optimism. But how habitable are these planets actually likely to be? A recent study of these planets’ likely climates may provide an answer to this question. ...

Assessing the Habitability of the TRAPPIST-1 System Using a 3D Climate Model - Eric T. Wolf

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What Shaped Elias 2-27’s Disk?

Postby bystander » Sat Apr 22, 2017 7:38 pm

What Shaped Elias 2-27’s Disk?
NOVA | American Astronomical Society | 2017 Apr 19

The young star Elias 2-27 is surrounded by a massive disk with spectacular spiral arms. A team of scientists from University of Cambridge’s Institute of Astronomy has now examined what might cause this disk’s appearance. ...

On the Origin of the Spiral Morphology in the Elias 2–27 Circumstellar Disk - Farzana Meru et al

viewtopic.php?t=36423
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An Exploration of Dusty Galaxies

Postby bystander » Sat Apr 22, 2017 7:47 pm

An Exploration of Dusty Galaxies
NOVA | American Astronomical Society | 2017 Apr 21

Submillimeter galaxies — i.e., galaxies that we detect in the submillimeter wavelength range — are mysterious creatures. It’s only within the last couple decades that we’ve had telescope technology capable of observing them, and we’re only now getting to the point where angular resolution limits allow us to examine them closely. A new study has taken advantage of new capabilities to explore the properties of a sample of 52 of these galaxies. ...

The SCUBA-2 Cosmology Legacy Survey: Multi-wavelength Properties
of ALMA-identified Submillimeter Galaxies in UKIDSS UDS
- J. M. Simpson et al
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