Deciphering Spitzer’s Legacy: Signs of Dead Galaxies at Cosmic Dawn
Is the so-called “IRAC-excess” due to interloping dead galaxies at extreme high redshift?
More Informative Mapping of Exoplanetary Peekaboos
Mapping the atmospheres and surfaces of exoplanets is ailed by degeneracies due to the choice of map structure and orbital parameter uncertainties. Today’s paper attempts to solve this by using a principal component analysis approach.
A summary of EWASS 2018 (I)
Last week, over 1400 astronomers met at the European Week of Astronomy and Space Sciences in Liverpool. From observations of high-redshift galaxies, to simulations of the universe and starquakes, we give you an eclectic mixture of highlights of the week.
Mapping Temperatures While Raising Questions
It’s our innate human instinct to uncover mysteries. Find out how Spitzer observations of 55 Cnc e are raising new questions and creating new mysteries that could be addressed with the next generation of ground and space based missions.
When Stars Align
When the stars align, you just might catch a planet, a black hole, or a binary star—but it’s hard to measure its mass! What does it take to do so?
55 Cancri e: Now With Added Volcanoes
Of the more than 1500 exoplanets discovered over the past two decades, perhaps the most intriguing and unexpected have been the ultra-short period planets, worlds so close to their parent star that they complete an entire orbit in less than a day. Most are small, less than twice the radius of the Earth, and are so hot that their rocky crusts are being melted away. The debris could be used to investigate the composition of these mysterious worlds, but most of them are too small for our current instruments to observe in detail.