In colorful photographs of galaxies, stars, planets, and more, what you see isn’t necessarily what you get 在星系、恒星、行星等色彩斑斓的照片中,你所看到的并不一定就是你所得到的 作者:Phil Plait; …
The first images include four galaxies, chosen because they represent the different types of galaxy that the survey will find. There is a barred spiral galaxy, like our Milky Way, and a similar galaxy undergoing vigorous star formation. There is also a galaxy that seems to haverecently merged,...
“The WFSS mode on NIRISS allows Webb to obtain spectra but for thousands of objects, such as galaxies, at the same time over the detector’s entire field of view (4.84 arcmin2). The spectra of thousands of galaxies will enable measurement of their distances, ages, and ...
For example, there are conundrums of dark matter and dark energy stem from astrophysical observations, specifically concerning the unusually high velocities of stars at galaxies’ edges and the surprisingly accelerated expansion of the late-time universe, respectively. Moreover, there are more clues ...
This lining up of galaxies can be helpful for astronomers performing certain types of research though. “Chance galactic alignments such as this provide astronomers with the opportunity to delve into the distribution of dust in these galaxies,” Hubble scientistswrite. “Galactic dust – the dark te...
On the opposite or back side, they also have a triangular face. There are three different types of quartz formations that are known as channeling crystals. Channeling Quartz This relates to how many of the 7-3 combinations occur on the crystal. They may occur with one, two or three pairs...
In the desert basins and mountain ranges of the Southwest and northern Mexico, you will discover, on the surfaces of boulders and rock exposures, galaxies of enigmatic figures chiseled or scribed or painted by human hands hundreds to thousands of years ago. These images on stone, says preeminen...
Astrophysicists have long tried to simulate the formation of our spiral galaxy, the Milky Way. Until now, such attempts have faltered on one of two points: Either the simulated spiral galaxies displayed too many stars at the center or the overall stellar mass was several times too big. For...
In this paper, we investigate the shadows and rings of the charged Horndeski black hole illuminated by accretion flow that is both geometrically and optically thin. We consider two types of accretion models: spherical and thin-disk accretion flow. We find that in both types of models, the si...
Furthermore, the quality of the measured morphology being strongly dependent on the image resolution, the comparison between different surveys is also a problem. Aims: We present a new non-parametric method to quantify morphologies of galaxies based on a particular family of learning machines called...