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Se esperan entre el 15 y 16 de Feb. Hay posibilidad de una Tormenta Geomagnética Menor G1 (Indice KP=5)

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Modelo WSA-ENLIL

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Univ. Yale, Oxford, Estocolmo

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High resolution observations with the Atacama Large Millimeter/submillimeter Array (ALMA) imaged a rotating dusty gas torus around an active supermassive black hole. The existence of such rotating donuts-shape structures was first suggested decades ago, but this is the first time one has been confirmed so clearly. This is an important step in understanding the co-evolution of supermassive black holes and their host galaxies.

Almost all galaxies hold concealed monstrous black holes in their centers. Researchers have known for a long time that the more massive the galaxy is, the more massive the central black hole is. This sounds reasonable at first, but host galaxies are 10 billion times bigger than the central black holes; it should be difficult for two objects of such vastly different scales to directly affect each other. So how could such a relation develop?

Aiming to solve this shadowy problem, a team of astronomers utilized the high resolution of ALMA to observe the center of spiral galaxy M77. The central region of M77 is an "active galactic nucleus," or AGN, which means that matter is vigorously falling toward the central supermassive black hole and emitting intense light. AGNs can strongly affect the surrounding environment, therefore they are important objects for solving the mystery of the co-evolution of galaxies and black holes.

The team imaged the area around the supermassive black hole in M77 and resolved a compact gaseous structure with a radius of 20 light-years. And, the astronomers found that the compact structure is rotating around the black hole, as expected.

"To interpret various observational features of AGNs, astronomers have assumed rotating donut-like structures of dusty gas around active supermassive black holes. This is called the 'unified model' of AGN," explained Masatoshi Imanishi　(National Astronomical Observatory of Japan), the lead author on a paper published in the Astrophysical Journal Letters. "However, the dusty gaseous donut is very tiny in appearance. With the high resolution of ALMA, now we can directly see the structure."

Many astronomers have observed the center of M77 before, but never has the rotation of the gas donut around the black hole been seen so clearly. Besides the superior resolution of ALMA, the selection of molecular emission lines to observe was key to revealing the structure. The team observed specific microwave emission from hydrogen cyanide molecules (HCN) and formyl ions (HCO+). These molecules emit microwaves only in dense gas, whereas the more frequently observed carbon monoxide (CO) emits microwaves under a variety of conditions . The torus around the AGN is assumed to be very dense, and the team's strategy was right on the mark.

"Previous observations have revealed the east-west elongation of the dusty gaseous torus. The dynamics revealed from our ALMA data agrees exactly with the expected rotational orientation of the torus," said Imanishi.

Interestingly, the distribution of gas around the supermassive black hole is much more complicated than what a simple unified model suggests. The torus seems to have an asymmetry and the rotation is not just following the gravity of the black hole but also contains highly random motion. These facts could indicate the AGN had a violent history, possibly including a merger with a small galaxy . Nevertheless, the identification of the rotating torus is an important step.

The Milky Way Galaxy, where we live, also has a supermassive black hole at its center. This black hole is, however, in a very quiet state. Only a tiny amount of gas is accreting onto it. Therefore, to investigate an AGN in detail, astronomers need to observe the centers of distant galaxies. M77 is one of the nearest AGN and a suitable object for peering into the very center in detail.

Paper and Research Team
These observation results were published as Imanishi et al. "ALMA Reveals an Inhomogeneous Compact Rotating Dense Molecular Torus at the NGC 1068 Nucleus" in the Astrophysical Journal Letters (2018 February 1 issue, 853, L25).

The research team members are:
Masatoshi Imanishi (National Astronomical Observatory of Japan/SOKENDAI), Kouichiro Nakanishi (National Astronomical Observatory of Japan/SOKENDAI), Takuma Izumi (National Astronomical Observatory of Japan), and Keiichi Wada (Kagoshima University)

This research was supported by the Japan Society for the Promotion of Science KAKENHI (Grant Numbers 15K05030 and 16H03959).

ALMA
The Atacama Large Millimeter/submillimeter Array (ALMA), an international astronomy facility, is a partnership of the European Organisation for Astronomical Research in the Southern Hemisphere (ESO), the U.S. National Science Foundation (NSF) and the National Institutes of Natural Sciences (NINS) of Japan in cooperation with the Republic of Chile. ALMA is funded by ESO on behalf of its Member States, by NSF in cooperation with the National Research Council of Canada (NRC) and the National Science Council of Taiwan (NSC) and by NINS in cooperation with the Academia Sinica (AS) in Taiwan and the Korea Astronomy and Space Science Institute (KASI).
ALMA construction and operations are led by ESO on behalf of its Member States; by the National Radio Astronomy Observatory (NRAO), managed by Associated Universities, Inc. (AUI), on behalf of North America; and by the National Astronomical Observatory of Japan (NAOJ) on behalf of East Asia. The Joint ALMA Observatory (JAO) provides the unified leadership and management of the construction, commissioning and operation of ALMA.

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the atacama large millimeter/submillimeter array

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Press Releases - Rotating Dusty Gaseous Donut around an Active Supermassive Black Hole - ALMA

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High resolution observations with the Atacama Large Millimeter/submillimeter Array (ALMA) imaged a rotating dusty gas torus around an active supermassive black hole. The existence of such rotating donuts-shape structures was first suggested decades ago, but this is the first time one has been confirmed so clearly.

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Beauty, grace, mystery - this magnificent spiral galaxy has all the qualities of a perfect galactic Valentine. Captured by the NASA/ESA Hubble Space Telescope, the galaxy NGC 3344 presents itself face-on, allowing astronomers a detailed look at its intricate and elegant structure.

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According to WPXI, NASA satellites Sunday night revealed what is called a solar mass ejection, through which material from the sun is blasted with great force out into space. That eruption continued until Monday morning.

Computer projections indicate the storm is on track to impact or narrowly miss Earth Thursday morning.

If the relatively weak flare does cross paths with our planet, the effects could be noticeable but are not expected to be substantial.

Solar storms can create fluctuations in power grids, though any effects from Thursday's event are expected to be minor. Experts predict the same for any interference with satellite operations due to emission.

The flare can also result in an aurora visible in the skies above areas within 30 and 60 degrees north or south of the equator. Within the U.S., these lights are most likely to appear over the west coast.

Some migratory animals are affected by solar storms, with the impact most evident in northern locations, including Canada.

Flares are common occurrences on the sun, with particulate matter routinely ejected at millions of miles per hour. Of the more than 150 storms that break out each year, however, only a small fraction collides with Earth.

While we could experience such a collision Thursday, the event has been classified as a G1, or minor storm. One-week last September provided an extended example of the types of storms the sun is capable of producing.

As Space.com reported at the time, a series of seven powerful flares were recorded in a seven-day period beginning Sept. 4. Each storm originated from the sun's Active Region 2673 as that area rotated out of sight from Earth.

Emergency Food Supplies

Mary Greeley News
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credit: https://www.westernjournal.com/nasa-warns-new-solar-storm-affect-us-canada-week/

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NASA Warns of New Solar Storm that Could Affect US and Canada This Week

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NASA Warns of New Solar Storm that Could Affect US and Canada This Week. Earth could travel through the path of particles released by a solar storm this week, according to experts who advise of the possible impact of such an event.

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Se aproximan 2 Tormentas Solares | @Pepeenvivo

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Dos tormentas solares se esperan en los próximos días Las noticias al momento, videos todos los días y de lunes a viernes en vivo a las 7:00 pm el resumen de noticias. Los sucesos mas interesantes, lo mas trending en las redes sociales y el pronostico del clima, prevención de fenómenos naturales.

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nasa warns of new solar storm that could affect us and canada

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NASA Warns of New Solar Storm that Could Affect US and Canada

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Computer projections indicate the storm is on track to impact or narrowly miss Earth Thursday morning. If the relatively weak flare does cross paths with our planet, the effects could be noticeable but are not expected to be substantial. Solar storms can create fluctuations in power grids, though any effects from Thursday's event are expected to be minor.

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CME, 2nd Impact Coming, Dust, Ice | S0 News Feb.15.2018

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Daily Sun, Earth and Space Science http://www.Suspicious0bservers.org http://www.SpaceWeatherNews.com http://www.QuakeWatch.net http://www.ObservatoryProject.com http://www.EarthChanges.org http://www.MagneticReversal.org For a ton of great videos, click our name and find the playlists at the bottom of the page!