Posted on January 11, 2019
"We know that black holes and star neutrons come from dying, but we never saw them seen after they were born. Never!", Said Raffaella Margutti, an assistant professor of physics and astronomy at the Northwest University, a bright object kidnapped by "The Cow" astronomers . "The explosion of the explosion" inside the explosion was exploding. The explosion of the stellar sun could normally be tough, but Cow had a very small mass, directly to see the central motor radiation directly. "
With the help of the WM Keck Observatory, the Hawaii Institute of Hawaii, Hawaii and Astronomy at the University of Hawaii at the ATLAS twin telescope proves that a particular moment might have fallen into a star to form a dense object, a black hole or a neutron star.
The bottom of the image below is visible in the squares of the galaxy spiral sorted by CGCG 137-068.
The star wastes, moving closer and moving around the horizon of the object's object, shone brightly. The research on the Astrophysical Journal was announced today at the 233rd Seattle State Astronomy Association's press conference.
This strange event will be understood by astronomers to create a black science or a neutron star in the first moments.
"Cosmos Dark Hearts" -Bull Blacks and Neutral Numbers Shots are announced
"Based on X-rays and UV spills, a white" Cow "could be created by the creation of a white dwarf, but our interpretation of the spectrum wave was further enhanced by the fact that a" black or neutral neutron star "" Cow "occurs. said Margutti, Northwest CIERA (Multidisciplinary Exploration and Research Center) for Astrophysics.
The cow was first sighted on June 16, Haleakala and Maunaloa ATLAS telescopes were seen 200 million years clear in the Herculesi Constellation. The object quickly switched on and almost disappeared.
The event immediately caught up with international interests and left astronomers away from their heads. "We thought it was a supernova," said Margutti. "But what we saw was the existence of today's death."
"Illusion?" – ESO Milky Way's Supermassive Black Hole Image
On the one hand, the anomaly was not the brightest naturalness: 10 to 100 times brighter than the typical supernova. In addition, the explosion of other star explosions disappeared faster and the particles were flying at 30,000 kilometers per second (or speed of light at 10 per cent).
Within 16 days, the object is already giving its greatest potential. Some phenomena, in a universe that lasts millions and millions, is two-eyed blinking.
"Immediately he knew that this source was not active and the summit of light in just a few days," said Ryan Chornock, secretary of co-operation, former professor of physics and astronomy faculty at Ohio University. "That was enough for people to be excited, because it was unusual and because astronomical standards were very close".
Using the dual telescopes of the Northwest Keck Observatory, Margutti analyzed Keck I's telescope high resolution imaging spectrometer (LRIS) and Obstetric image detection and multi-object spectroscopy (DEIMOS) by Keck II. .
"Keck was a tool to determine the chemical composition and chemical composition of AT2018cow," said Nathan Roth, secretary of the JSI postdoctoral University of Maryland. "Keck's unique niche is the ability to control late Cow Cow's behavior, which can be difficult, as time goes on afterwards, the more rapid it becomes, but at the end of the Keck spectroscopy, we dug the" interiors "of the explosion. This shows the most outstanding features of the AT2018cow reddish spectrum.
"Cows are a great example of observation in astronomy critique: a quick response to ephemeral events," says Keck Observatory, Scientist, John O & # 39; Meara. "Looking forward, we are developing new instruments of observational politics and telescopes, in order to enable rapid and fast science in the sky as soon as possible."
The group also obtained optical images from the Ariztian MMT Observatory and the SOAR Telescope in Chile's Southern Astrophysics Research.
When Margutti and his team analyzed the chemical composition of Cowen, they found clear evidence of hydrogen and helium, excluding compact objects (like those that produce gravitational waves).
"We took a moment to realize what we were doing, I would tell them the months," said Brian Metzger, associate professor of physics at Columbia University. "We tried different options and we had to draw the drawing several times, and finally, we interpreted the results very well, for the work dedicated to our whole group.
Astronomers have investigated conventional star waves of asthma, using telescopes that are clearly visible.
The Margutti group, on the other hand, used a more comprehensive approach. After seeing the object by ATLAS, Margutti's team performed follow-up observations using multiple observations to study Cow's waves.
The researchers saw the object in X-rays using NASA's Nuclear Nuclear Telescope Array (NuSTAR) and the European Space Agency (ESA) INTA's Gamma-Ray Astrophysics Laboratory (INTEGRAL), X-rays (10 times stronger than normal x-rays) X-ray X-ray multi-mission mission (XMM-Newton) and using radio waves using the Large Large Array (VRA) National Radio Astronomy Observatory (NRAO). This is a long anomaly that overwhelms this one after its spectacular splendor.
She draws a relative nudity to Mary's Cow to unravel this intergalactic mystery. While the stars can knock the black hole all the time, a large number of new black holes block the sight of astronomers.
Fortunately, approximately 10 times, compared to the typical cyclists around the Storm with stellar explosions. The shortcomings of matter were that astronomers were directly joining together with the "central engine" object as a black or neutral hollow star.
The group Margutti also had a relative proximity to the Earth. Although CGCG 137-068 is located in a distant galaxy of nanos, the astronomers think they are "across the corner."
"Two million years is clearly close to us," Margutti said. "This is the closest transitory object of that kind we have ever found."
The Daily Galaxy Keck Observatory