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The fastest-growing black hole has a large appetite

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The fastest-growing black hole has a large appetite
This massive and hungry black hole was first identified and studied by researchers at May 2018. Previously, they believed it consumed a mass equivalent to our sun every two days. Now, they have a better understanding of this monster’s black hole and its greedy behavior.

The black hole is known as J2157 and there are more than 12 billion light years in the distant universe. Astronomers try to understand how such a large black hole could have evolved in the early days of the universe. Researchers continue to look for larger black holes like this to understand how they grow.

“This is the largest black hole weighed in the early period of the Universe,” Christopher Onken, lead author of the study and researcher at the Australian National University School of Astronomy and Astrophysics, said in a statement. “We saw it when the universe was only 1.2 billion years old, less than 10 percent of its current age.”

This dwarfs the supermassive black hole called Sagittarius A * in our Milky Way galaxy.

“The mass of a black hole is about 8,000 times greater than a black hole at the center of the Milky Way,” Onken said. “If the Milky Way’s black hole wants to grow fat, it has to swallow two-thirds of all the stars in our Galaxy.”

The SkyMapper Telescope at the Siding Spring Observatory, Australian National University, is able to detect black holes with near infrared light after crossing billions of light years to reach us on Earth.

The power of natural monsters

Astronomers first discovered the black hole J2157 because of its brightness in ultraviolet light. While light cannot escape from a black hole, this black hole emits X-rays and ultraviolet rays created because of great taste.

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Astronomers also define this particular black hole as the most famous quasar. Quasars are supermassive black holes in galaxies that emit so much energy through their gas disks that they look like stars through a telescope.

“This black hole grows so fast that it shines thousands of times brighter than the rest of the galaxy, because all the gas that is inhaled every day causes a lot of friction and heat,” said Christian Wolf, a writer in both 2018 and a new study and professor at the Australian National University , when the black hole was first discovered two years ago.

“If we had this monster sitting in the center of our Milky Way galaxy, it would appear 10 times brighter than the full moon. It would appear as a star of very bright dots that would almost wash away all the stars in the sky. Maybe it would make life in The earth becomes impossible with the large amounts of X-rays coming from it. “

Betelgeuse, a strange, dim star, may be covered with giant star spots

The new study was followed up on the black hole using the European Great Observatory Southern Telescope in Chile to measure mass

“We knew we were in a very large black hole when we realized its rapid growth rate,” said Fuyan Bian, study co-author and staff astronomer at the European Southern Observatory, in a statement.

“How many black holes can be swallowed depends on how much mass they already have. So, for this one consuming material at high speed, we think it can become a new record holder. And now we know.”

Further studies and observations of this black hole will also explain its host galaxy, which can reveal more information about the early universe and how large black holes evolved early on.

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“With a very large black hole, we are also happy to see what we can learn about the galaxy where it grows,” Onken said. “Is this galaxy one of the early giants of the Universe, or does the black hole only engulf an extraordinary amount of its environment? We have to keep digging to find out.”

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Prize for the Portuguese. Andre Silva is Champions League Player of the Week

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Prize for the Portuguese.  Andre Silva is Champions League Player of the Week

BUTndre Silva won the competition and became the best player of the week in the Champions League, informed UEFAthis Thursday.

The former Porto striker scored in Jota’s 3-1 victory over Celtic Leipzig, scoring a brace in a match that was signed after his Portuguese compatriot equalized.

In addition, Andre Silva also provided the assist for Nkunku, scoring the first goal of this Wednesday’s game in which huge show of foreign fans.

In addition to the Leipzig striker, Di Maria (Juventus), Bellingham (Borussia Dortmund) and Di Lorenzo (Napoli) also fought in the fight for the prize, but it was the Portuguese who managed to smile after voting for the third round of the competition, the famous This Thursday is the fair.

Read also: Diogo Costa and Andre Silva named to Champions League Team of the Week

See also: Andre Silva among the nominees for the title of the best player of the week in the Champions League

See also: double dose. Andre Silva returned to celebrate and sentenced doubts

See also: Andre Silva took advantage of Hart’s colossal mistake and responded to Jota’s goal

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Eternal Portuguese deja vu – Renaissance

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Eternal Portuguese deja vu - Renaissance

At the end of the summer of 1972, exactly half a century ago, SEDES – Associação para o Desenvolvimento Económico e Social (the most famous reformist think tank during Marseilles) issued a document for the country entitled “Portugal: The country we are, the country we want to be “. The Marseille spring had already turned into autumn: Américo Thomas had just been re-elected, the colonial war had dragged on, repression had intensified, and an economic crisis was already brewing. Seeing the general frustration, and at the same time willing to go against it, the signatories of CEDES began by asking “Where will we be and how will we be in 1980?” to criticize the obstacles that overshadowed Portugal in the early 1970s.

Among the “problems that are getting worse without a solution”, emigration stood out, indicating the country’s inability to offer better living and working conditions to those who left; the growing inflationary process, reflected in the cost of living; the inevitability of economic integration in Europe when the country is not ready for international commercial competition; “disaggregation of regional economies” with “continuous depopulation of municipalities and regions” within the country; or “deterioration of public administration” when the government fails to promote a “prestigious, moralized, revitalized and efficient public sector”. “No one will have any difficulty,” continued the text, “to add to a new list of urgent questions that seriously endanger national life, about which much has been said and which, year after year, continue to wait for a sufficient solution.” Therefore, “the prevailing feeling in the country” in contemplation of the recent past and present could not but be “annoyance at urgent battles, the need for which was endlessly discussed, at decisions that were changed or postponed, and at rejected goals” or which were not clearly formulated ” .

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Between “untapped resources” and/or “lack of organizational and decision-making capacity” there was “widespread anxiety” stemming from the inevitable observation that “we are very far from the results that we could achieve thanks to the progress of the Portuguese and Portugal”. This was the macro goal of the reformist, humanist and liberalizing technocrats that SEDES brought together. “Ultimately,” they reminded Marcelo Cayetano, “the real obstacle can only be associated with the low political priority of economic and social development in our country.” So, in short, there was an urgent need to “radically change our economic, social and political way of life”, since “a national balance based on general anemia, repression and weakening of various participants” is unsustainable and pernicious.

SEDES did not know that the Estado Novo would fall in April 1974, that democracy would come in 1976, and Europe from the EEC (after EFTA) in 1986 of repression, finally gained the freedom that was discussed between the lines of the 1972 manifesto ., there would be conditions for solving (almost) all economic and social problems of development and cohesion.

Fifty years have passed since this manifesto, and almost the same number has already been in democracy. However, if we compare the above quotes with the Portuguese present, the feeling of deja vu is indescribable. SEDES wondered what the country would be like in 1980 and is wondering today (in its recent study “Ambition: Doubling GDP in 20 Years”) where we will be in 2040. It may be a replay of a sad fate: knowing (some) where to go, but never getting there!

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Algeria interested in Portuguese companies investing in renewable energy – Observer

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Algeria interested in Portuguese companies investing in renewable energy - Observer

Foreign Minister João Gomes Cravinho met this Wednesday with his Algerian counterpart Ramtan Lamamra, who expressed interest in Portuguese companies investing in Algeria’s solar and wind energy.

Speaking with Lusa, João Cravinho also said that for 2023 it was decided to hold a “high-level meeting chaired by the prime ministers” of the two countries, a meeting to be held in Algiers, in addition to the state visit of the President of Algeria. Algeria to Portugal.

The Portuguese foreign minister said today’s visit to Algeria, where he was with Ramtan Lamamra, whom he has known since 2005 when he was ambassador to Lisbon, is “based on old knowledge”, but also a visit to a country that “does not to be a neighbor”, shares “a lot of fears”. “Not being a neighboring country, it almost shares many concerns about the region, the Mediterranean, the European Union’s relationship with Africa and the Arab world. It was important for us to talk about what we can do together as part of the geopolitical and geo-economic transformation,” he explained.

João Cravinho stressed that the issue of Russia’s invasion of Ukraine was a factor “which could not but be the subject of dialogue”, and also added that “geo-economic issues related to energy, renewable energy sources and the opportunities that come with the digital transition” also were on the table.

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“While Algeria is a major exporter of fossil fuels, it is also a country with huge potential in terms of solar and wind energy. We have very qualified companies in these areas, and the Algerian side has expressed interest in [ter] Portuguese investors in these areas,” the minister said.

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The official said that it would be a matter of working with the Portuguese Agency for Investment and Foreign Trade (AICEP), with the Secretary of State for Internationalization, as well as with a sectoral ministry, namely the Ministry of Environment and Climate Change. A “high-level meeting chaired by the prime ministers” of the two countries is scheduled for 2023, a meeting to be held in Algiers, in addition to the Algerian President’s state visit to Portugal.

“We have a very busy calendar between the two countries. Now we will try to organize a mixed commission, where technical specialists from both countries will gather,” he said, stressing that there are “14 legal documents that are practically finalized and will be signed” in 2023.

João Gomes Cravinho was on a visit to Algiers today to assess bilateral relations in the economic sphere, as well as in terms of cooperation, language and culture, and to discuss international issues.

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