Bookmark  NewsArticlesFiles 
  •  News
  •  Article
  •  File

  • ● News ● Analytics ● Culture ● Entertainment ● Media ●
    Topics: Science | Sport | Military | Incidents | In the world | Culture | Politics Files: Software | Documentation News
     Astronomers have found the composition and climate of the acclaimed "a perfect world"
    on Wednesday 11 July 2018
    by SL author list email the content item print the content item create pdf file of the content item
    comments: 0
    not rated -

    The results give scientists more optimistic about its habitability.

    Scientists have discovered what is the famous planet of Ross 128 b and what is its surface temperature. The results give scientists more optimistic about its habitability. The achievement is described in a scientific paper published in Astrophysical Journal Letters.

    "Science" ( wrote about the reasons why this world has interested astronomers. A heavenly body like the Earth by weight. It revolves around a "quiet" stars, not prone to catastrophic outbreaks. To him just 11 light years, which is almost a record. Finally, experts suggested that the planet is in the habitable zone.

    However, scientists still lacked key data. Unknown was the chemical composition and the radius of the planet, has retained much uncertainty with the temperature of its surface.

    A new study has provided astronomers long-awaited information. Experts have studied the chemical composition of the parent star Ross 128. He has much to say about the planet, because the star and its satellites are formed from the same protoplanetary cloud.

    "Until recently it was difficult to obtain detailed chemical parameters of the star," admits the study's lead author Diogo Souto (Souto Diogo) from the National Observatory of Brazil.

    The fact that Ross 128, as approximately 70% of the other suns of our Galaxy belongs to the red dwarfs. It's small, cool and therefore faint stars. It is very difficult to collect from them sufficient light to obtain a qualitative range.

    The authors used data Kaunasskogo digital sky survey (Sloan Digital Sky Survey) received at the receiver APOGEE. The wavelength was 1.5 to 1.7 micrometers (near infrared range). Using especially for this purpose developed method, the researchers analyzed the spectrum of the star.

    "The ability of APOGEE to measure the near infrared "light", in which Ross 128 brightest (compared to its emission in other bands – approx. ed.) were key for this study, explains co-author Johanna Teske (Johanna Teske) from the research of Carnegie Institute in the United States. It allowed us to consider some fundamental questions about semiautonomy Ross 128 b".

    In particular, the researchers measured the contents in a star of eight chemical elements: carbon, oxygen, magnesium, aluminum, potassium, calcium, titanium and iron.

    Usually as a measure the content of elements heavier than helium, astronomers use the iron concentration. It turned out that on this key parameter dwarf Ross 128 is similar to the Sun. But the ratio of iron and magnesium suggests that the iron core of the planet even more than Earth.

    Knowing the mass and the approximate chemical composition Ross 128 b, the scientists determined its radius. Explain that it is impossible to measure directly, as this exoplanet crosses in its movement the line "star – watcher".

    It turned out that the radius of the planet exceeds the earth is not more than 1.7 times. This means that we face a rocky world, not mininatur.

    The composition and the radius of the Ross 128 b helped to determine the reflectivity and thus to estimate the temperature. Calculations confirmed that the climate of the distant world allows for the existence of life.

    "It's amazing what we can learn about another planet, seeing that the light from its parent star tells us about the chemistry of the system, summarizes Souto. Although Ross 128 b is Earth's twin and we still do not know much about his potential geological activity, we were able to reinforce the thesis that this [climate] reasonable a planet that could potentially have liquid water on its surface".

    We will remind that earlier "News.Science" wrote about other earth-like worlds in red dwarfs. In particular, we talked about the planet nearest to the Sun stars and the famous system of TRAPPIST-1.

     Submit comment

     Main Menu 


    Remember me

    [ ]
    Психотронное оружие
    Блин. Ну мне просто интересно, хотя и не только... ...
    Психотронное оружие
    По всей стране строятся для новой радиолокационно ...
    Психотронное оружие
    А что если они разрабатываю оружие которое по схож ...
    Психотронное оружие
    С помощью этого оружия можно управлять и наносить ...
    Психотронное оружие
    Технику и оружие евреи получили обманом будто бы д ...
     Последние добавления 

    Animated toys: innovative skin turns ordinary objects into robots
    Carbon particles from polluted air penetrate even in the placenta
    Thousands of saved masterpieces: restoration center behalf Grabar celebrates the 100th anniversary of
    Russian expressionism: in St. Petersburg will present the art of pivotal eras
    Nurmagomedov fought with Timothy and Egor Creed
    In Gelendzhik will pass the championship of Russia on aquabike
    The President set gunsmiths specific task
    The leaders of the two Koreas will visit the sacred mountain Pektusan
    For the most prominent scientist of Russia, China and Mongolia was observed by representatives of 59 countries
    New military developments of Russia will serve for peaceful purposes
    In the Spanish city of Malaga opens exhibition of works by Kazimir Malevich
    The tenth music festival in Gabala: music erases borders and distances
    "So my people can live in peace". The lawyer explained why Manafort pleaded guilty
    Death lab near Tbilisi: published records of experiments on humans and biological weapons
    The defense Ministry promises to punish Israel for the deaths of pilots in Syria
    Vegan-the father brought the infant son to jaundice and malnutrition
    The conflict between neighbors over a dog ended with the firing of the gas gun
    Planet from "star trek" was not fiction, and the nearest super-earths have a sun-like star
    Вы передавали передачи с проводниками поездов?
    Были серьезные проблемы по вине проводников
    Были проблемы НЕ по вине проволдников
    Претензий нет
    Другой вариант

    Posted by Slava
    Votes: 3 Comments: 0
    Previous polls
     News updates 

    Права на материалы принадлежат их авторам. Перепубликация разрешена с указанием гиперссылки на первоисточник.
    Переведено сервисом «Яндекс.Переводчик»