Hydrogen fibers are 3,900 light-years long

About 13.8 billion years ago, the universe was born in a huge explosion, which gave rise to the first subatomic particles and the laws of physics as we know it. After about 370,000 years, hydrogen formed the star-forming mass, which fused hydrogen and helium in its interior to form all the heavy elements. Although hydrogen is the most prevalent element in the universe, it is difficult to detect individual clouds of hydrogen gas in stellar media (ISM).

This makes it difficult to explore the early stages of star formation, which would provide clues about galaxies and the evolution of the universe. An international team led by astronomers Max Planck Institute for Astronomy (MPIA) recently observed the presence of huge filaments of atomic hydrogen gas in our galaxy. The system, called “Maggie”, is located about 55,000 light-years away (on the other hand)

Milky Way
The Milky Way is the galaxy that contains the Earth, and is named for its appearance from Earth. It is a barred spiral galaxy that contains an estimated 100-400 billion stars and has a diameter between 150,000 and 200,000 light-years.

“>Milky Way) and is one of the tallest structures ever seen in our galaxy.

A study describing their findings was recently published in the journal Astronomy and astronomyAnd Ph.D. led by Jonas Syed. Student at MPIA. Accompanied by researchers from the University of Vienna Harvard-Smithsonian Astronomical Center (Max Planck Radio Astronomy Company (MPIFR), University of Calgary, University of Heidelberg, and Astronomy and Planetary Science Center, the Argelander- Astronomical InstituteThe Indian Institute of Science and

Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United States Federal Government that succeeded the National Advisory Committee for Aeronautics (NACA). It is responsible for the civilian space program, as well as aeronautics and aerospace research. It’s vision is “To discover and expand knowledge for the benefit of humanity.”

“> NASAJet Propulsion Laboratory (JPL)

The Jet Propulsion Laboratory (JPL) is a federally funded research and development center managed for NASA by the California Institute of Technology (Caltech). The laboratory’s primary function is the construction and operation of planetary robotic spacecraft, though it also conducts Earth-orbit and astronomy missions. It is also responsible for operating NASA’s Deep Space Network. JPL implements programs in planetary exploration, Earth science, space-based astronomy and technology development, while applying its capabilities to technical and scientific problems of national significance.



This study was conducted on the basis of the data obtained HI / OH / Milky Way Reentry Tax Study (THOR), based on monitoring software Carl C. Janski is the largest assortment (VLA) in New Mexico. Using centimeter-wave radio feed from the VLA, the project explores the formation of molecular clouds, the conversion of atoms into molecular hydrogen, the galaxy’s magnetic field, and other questions related to the ISM and star formation.

The ultimate goal is to determine how the two common isotopes of hydrogen combine to form dense clouds that ascend to new stars. The isotopes include atomic hydrogen (H), the proton, the electron and the absence of neutrons, and molecular hydrogen (H).2It is made up of two hydrogen atoms joined by a covalent bond. The latter only condenses into relatively compact clouds, which form icy regions where new stars eventually appear.

This image shows part of the side view of the Milky Way measured by the European Space Agency’s Gaia satellite. The dark band contains gas and dust, which blocks the light from the merged stars. The center of the Milky Way is to the right of the image, brightly shining below the dark region. The box to the left of center indicates the location of the ‘Maggie’ fibers. The diffusion of atomic hydrogen is shown. The colors indicate different gas velocities. Credit: ESA / Gaia / DPAC, CC BY-SA 3.0 IGO & T. Müller / J. Syed / MBIA

How a molecule of atomic hydrogen turns into hydrogen is still largely unknown, which made these extremely long fibers a particularly exciting discovery. The largest cloud of molecular gas is 800 light-years long, while the Magi cloud is 3,900 light-years long and 130 light-years wide. Syed explained in the last MPIA press release:

This site contributed to this success. We still don’t know exactly how you got there. But the fibers extend about 1,600 light-years below the plane of the Milky Way. The observations also allowed us to find out the velocity of hydrogen gas. This allowed us to show that fiber speeds rarely differ.

The group’s analysis shows that the substance in the fibers has an average speed of 54 kilometers per second.-1, determined mainly by its measurement against the rotation of the Milky Way’s disk. This means radiation with a wavelength of 21 cm (aka “hydrogen line“These observations allowed us to determine the velocity of hydrogen gas,” said Henrik Pieter, co-author and co-author of the study.

MAGGI Atomic Hydrogen Fiber

This false-color image shows the distribution of atomic hydrogen measured at a wavelength of 21 cm. The red dash indicates ‘Maggie’ fibers. Credit: J. Syed / MPIA

From this, the researchers concluded that the Magee was a coherent system. Reach out to these discoveries Juan d. , an astronomer at the University of Vienna and co-author of the paper. Solar confirmed observations made a year ago. When he noticed the leads, he named the longest river in his native Colombia: the Río Magdalena (English: Margaret, or “Maggie”). Although Maggie was identified in Solar’s previous THOR data evaluation, only the current study proves beyond doubt that it is a coherent system.

Based on previously published data, the team also estimated that 8% of the molecular weight of hydrogen in Magi is by mass. Upon closer examination, the team observed gas merging with the fibers at various points, leading to the conclusion that hydrogen gas was accumulating in large clouds at those locations. They also predicted that in that environment the atomic gas would gradually condense into a molecular form.

“However, many questions remain unanswered,” Syed added. “We hope the molecule will give us additional clues about the gas region, and additional data, already waiting to be analyzed.” Fortunately, many space and ground laboratories will soon be operational, and telescopes will be equipped to study these fibers in the future. This includes James Webb Space Telescope (JWST) and Radio Studies square kilometer line (SKA), which allows us to see the beginning of the universe (“cosmic dawn”) and the first stars of the universe.

First published in universe today.

For more on this research, see A massive fiber structure – 3,900 light-years long – has been discovered in the Milky Way.

Note: “Maggie” filaments: physical properties of a giant atomic cloud by J. Syed, J. D. Soler, H. Beuther, Y. Wang, S. Suri, J. D. Henshaw, M. Riener, S. Bialy, S. Rezaei Kh. , J. M. Stil, P. F. Goldsmith, M. R. Rugel, SCO Glover, R. S. Klessen, J. Kerp, J. S. Urquhart, J. Ott, N. Roy, N. Schneider, R. J. Smith, S. N. Longmore and H. Linz, December 20, 2021 and Astronomy and astronomy.
DOI: 10.1051 / 0004-6361 / 202141265

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