All articles tagged with #green bank telescope
Astronomers have created the first large-scale maps of CO-dark molecular gas in the Milky Way's star-forming region Cygnus X using the Green Bank Telescope, revealing hidden structures and dynamic flows that influence star formation, thus shedding light on previously invisible matter crucial for understanding galaxy evolution.
Astronomers discovered the Midpoint cloud, a massive Giant Molecular Cloud spanning 650 trillion miles within the Milky Way, containing dense gas and masers that indicate active star formation and playing a key role in transporting matter to the galaxy's core, offering new insights into galactic processes.
Astronomers discovered a massive molecular cloud in the Milky Way, weighing as much as 160,000 suns and located 23,000 light-years away, which could provide new insights into star formation and galaxy evolution.
Astronomers using the Green Bank Telescope discovered the Midpoint cloud, a massive 650 trillion-mile-long Giant Molecular Cloud within the Milky Way, which plays a key role in transporting matter to the galaxy's center and fostering star formation, offering new insights into galactic evolution.
Scientists have discovered a massive 200-light-year-wide structure called the Midpoint Cloud within the Milky Way, using the Green Bank Telescope. This Giant Molecular Cloud contains dense gas and masers, providing new insights into star formation and galactic matter flow, especially in the galaxy's core and bar regions.
Astronomers discovered a massive, previously unknown molecular cloud in the Milky Way, called the Midpoint cloud, which acts as a conduit for gas flowing into the galaxy's core, potentially fueling star formation and revealing new insights into galactic dynamics and life cycles.
Scientists accidentally discovered a possibly faintest galaxy, J0613+52, after making a typo in telescope coordinates, leading to the observation of an isolated and unrecorded dark primordial galaxy made entirely of spread-out gas and devoid of visible stars. Estimated to be 260 million light-years away, the galaxy's lack of neighbors and diffuse gas make it particularly difficult to detect, and further observations are needed to determine its size, structure, and origins. The discovery could provide insights into star and galaxy formation in the universe.
Astronomers accidentally discovered a dark galaxy, J0613+52, filled with primordial gas and no visible stars, just 270 million light-years away. This unique galaxy, found during a survey of Low Surface Brightness galaxies, challenges current theories of star formation and galactic evolution. J0613+52 is rich in gas but lacks star formation, possibly due to its diffuse gas and isolation from other galaxies. Its properties suggest it may be the first nearby galaxy made up of primordial gas, presenting more questions than answers for astronomers. Further research using sensitive instruments like the Green Bank Telescope could uncover more of these ultra-dark galaxies.
Scientists from the University of Amsterdam have detected a new type of fast radio burst (FRB) called ultra-fast radio bursts (UFRBs) that last less than 10 millionths of a second. Using data from the Green Bank Telescope, the researchers found 49 bursts, eight of which were categorized as UFRBs. These findings suggest that FRBs occur more frequently and with greater diversity than previously thought. The origin of FRBs is still unknown, but they are believed to come from massive objects like white dwarfs, black holes, neutron stars, or magnetars. Scientists hope to use FRBs to map the universe and enhance our understanding of cosmic phenomena.
Astronomers analyzing data from the Green Bank Telescope have discovered evidence of multiple microsecond-length fast radio bursts (FRBs). These extremely short bursts, lasting between 5 and 15 microseconds, were found to be nearly identical in nature to longer FRBs, supporting the leading theories about their origin. The findings suggest that there may be many more FRBs reaching Earth than previously suspected and provide insights into the environment from which they arise.
Astronomers have discovered the shortest fast radio bursts (FRBs) ever recorded, with one lasting only five microseconds, a thousand times shorter than typical FRBs. These bursts are believed to originate from a galaxy three billion light years away, but their exact nature remains unknown. The discovery suggests that the figure of 10,000 FRBs reaching Earth daily may need to be revised upwards, indicating that a significant fraction of FRBs may have been missed due to computational limitations. The findings also raise questions about the origin of FRB emissions and the impact of the surrounding environment on their time structure.
Astronomers have discovered a new binary millisecond pulsar, PSR J0212+5321, using the Green Bank Telescope. The pulsar belongs to the "redback" subclass and is located relatively nearby. It has a rotation period of about 2.11 milliseconds and is estimated to be located some 3,750 light years away. The collected data suggest that PSR J0212+5321 experiences wide-orbit eclipses, similar to other redbacks, as well as scintillation and dispersion measure delays caused by its interaction with its companion and surroundings. The study also found that the PSR J0212+5321 system has a mass ratio at a level of 0.247, and that it showcases a relatively high X-ray luminosity—one of the highest recorded among redbacks in the pulsar state.
New research on a Fast Radio Burst (FRB) from a cosmological object in a distant dwarf galaxy has revealed a rarely seen astronomical environment around its source, where magnetic fields twist, turn, and undulate over time. This is the first detection of a magnetic field reversal observed from an FRB, and the first time this behavior has been observed in another galaxy. The discovery also strengthens the idea that at least a fraction of FRBs originate in a binary system, which is a system of two stars that orbit each other. The National Science Foundation’s Green Bank Telescope was used to observe FRB 20190520B for seventeen months, and the peculiar characteristics of the FRB inspired a deeper dive into the data.
The Breakthrough Listen Investigation for Periodic Spectral Signals (BLIPSS) project, a collaborative SETI project led by Cornell graduate student Akshay Suresh, has been searching for technosignatures at the center of the Milky Way using a proprietary algorithm and data obtained by the Greenbank Observatory. The team was looking for regularly-spaced sequences of pulses across a signal range of a few kilohertz, similar to radar communications, but did not find any clear indications of periodic radio signals. However, the search accomplished several firsts and established constraints that future studies can build on.