Meteor Activity Outlook for June 4-10, 2016

During this period the moon reaches its new phase on Sunday June 5th. At this time the moon will lie close to the sun and will be invisible at night. Later in this period, the waxing crescent moon will enter the evening sky but will not interfere with meteor observing.

cluster

The estimated total hourly meteor rates for evening observers this week is near 3 for observers located in the northern hemisphere and 4 for observers located in tropical southern locations (25S) . For morning observers the estimated total hourly rates should be near 9 as seen from mid-northern latitudes (45N) and 12 as seen from tropical southern locations (25S).

The actual rates will also depend on factors such as personal light and motion perception, local weather conditions, alertness and experience in watching meteor activity. Note that the hourly rates listed below are estimates as viewed from dark sky sites away from urban light sources. Observers viewing from urban areas will see less activity as only the brightest meteors will be visible from such locations.

The radiant (the area of the sky where meteors appear to shoot from) positions and rates listed below are exact for Saturday night/Sunday morning June 4/5. These positions do not change greatly day to day so the listed coordinates may be used during this entire period. Most star atlases (available at science stores and planetariums) will provide maps with grid lines of the celestial coordinates so that you may find out exactly where these positions are located in the sky.

A planisphere or computer planetarium program is also useful in showing the sky at any time of night on any date of the year. Activity from each radiant is best seen when it is positioned highest in the sky, either due north or south along the meridian, depending on your latitude. It must be remembered that meteor activity is rarely seen at the radiant position. Rather they shoot outwards from the radiant so it is best to center your field of view so that the radiant lies at the edge and not the center.

Viewing there will allow you to easily trace the path of each meteor back to the radiant (if it is a shower member) or in another direction if it is a sporadic. Meteor activity is not seen from radiants that are located far below the horizon. The positions below are listed in a west to east manner in order of right ascension (celestial longitude). The positions listed first are located further west therefore are accessible earlier in the night while those listed further down the list rise later in the night.

These sources of meteoric activity are expected to be active this week.

The center of the large Anthelion (ANT) radiant is currently located at 17:48 (267) -23. This position lies in western Sagittarius, near the border with Ophiuchus. The nearest bright star is 3rd magnitude theta Ophiuchi, which lies 5 degrees to the southwest. Due to the large size of this radiant, Anthelion activity may also appear from the nearby constellations of western Sagittarius, Serpens Caput, and southeastern Scorpius as well as Ophiuchus. This radiant is best placed near 0200 local daylight saving (LDST), when it lies on the meridian and is located highest in the sky.

Hourly rates at this time should be near 2 as seen from mid-northern latitudes and 3 as seen from tropical southern latitudes. With an entry velocity of 30 km/sec., the average Anthelion meteor would be of slow velocity.

The June Mu Cassiopeiids (JMC) were discovered by Dr, Peter Brown and associates using data from the Canadian Meteor Orbit Radar (CMOR) installation. These meteors are active from May 31-June 5, with maximum activity occurring on June 1st. The radiant position at maximum lies at 01:29 (022) +56. This area of the sky lies in southern Cassiopeia, just east area occupied by the 4th magnitude star known as theta Cassiopeiae. These meteors are best seen near during the last dark hour of the night when the radiant lies highest in a dark sky. These meteors are better seen from the northern hemisphere where the radiant rises higher into the sky before the start of morning twilight. Hourly rates, are expected to remain less than 1. With an entry velocity of 42 kilometers per second, a majority of these meteors will appear to move with medium velocities.

The radiant for the Daytime Arietids (ARI) only lies 45 degrees west of the sun. Therefore these meteors can only be seen between the time the radiant rises and dawn. This is a small window of opportunity that lasts for about an hour before the break of dawn. This shower is expected to peak on the morning of June 7th. The current position of the radiant is 02:48(042) +23. This position lies in central Aries, 10 degrees southeast of the 2nd magnitude star known as Hamal (Alpha Arietis). Despite being a strong source of meteors, visual members of this shower are rare due to the low altitude of the radiant.

If this radiant was better placed in the sky it would rival the better known Perseids of August. These meteors are the strongest source of radio meteors for the entire year. With an entry velocity of 42 km/sec., the average Daytime Arietid meteor would be of medium speed.

As seen from the mid-northern hemisphere (45N) one would expect to see approximately 6 sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near 2 per hour. As seen from the tropical southern latitudes (25S), morning rates would be near 9 per hour as seen from rural observing sites and 3 per hour during the evening hours. Locations between these two extremes would see activity between the listed figures.

Robert Lunsford – American Meteor Society

 

 

JUST IN: New Study Suggest Supervolcanoes Connected via Batholithic Flows

A new study by University of Wyoming researchers shows isotopic variations across the batholith indicate the magma formed by melting of multiple rock sources that rose through multiple conduits that appear to connect several supervolcanoes such as the Yellowstone caldera. Geophysical monitoring of the ground above active supervolcanoes shows that it rises and falls as magma moves beneath the surface of the Earth.

Plutons_m

Silica-rich magmas – like those in the Yellowstone region and along the western margin of North and South America – can erupt violently and explosively, throwing vast quantities of ash into the air, followed by slower flows of glassy, viscous magma. But, what do the subterranean magma chambers look like, and where does the magma originate? Those questions cannot be answered directly at modern, active volcanoes.

This study was funded by the National Science Foundation (NSF), and its findings are outlined in a paper published in the June issue of American Mineralogist, the journal of the Mineralogical Society of America. University of Wyoming researchers suggests they can go back into the past to study the solidified magma chambers where erosion has removed the overlying rock, exposing granite underpinnings.

yellowstone_batholith_connection_m

“Every geology student is taught that the present is the key to the past,” says Carol Frost, director of the NSF’s Division of Earth Sciences, and a professor in the Department of Geology and Geophysics. “In this study, we used the record from the past to understand what is happening in modern magma chambers.”

One such large granite body, the 2.62 billion-year-old Wyoming batholith, extends more than 125 miles across central Wyoming. UW master’s degree student Davin Bagdonas, traversed  Granite Mountain, also Shirley and Laramie mountains to examine the body, finding remarkable uniformity, with similar biotite granite throughout.

Yosemite_batholithic_granite_m

This homogeneity indicates the crystallizing magma was generally well-mixed. However, more subtle isotopic variations across the batholith show the magma formed by melting of multiple rock sources that rose through multiple conduits, and homogenization is yet to be determined.

“Study of the products of supervolcanoes and their possible batholithic counterparts at depth are a vibrant, controversial area of research,” says Brad Singer, professor in the Department of Geoscience at the University of Wisconsin-Madison. He says research by Frost and her colleagues’ offers an  innovative perspective gleaned from the ancient Wyoming batholith, suggesting that it is the frozen portion of a vast magma system that could have fed supervolcanoes like those which erupted in northern Chile-southern Bolivia during the last 10 million years.

Andean supervolcanos

“The possibility of such a connection, while intriguing, does raise questions.” The high silica and potassium contents of the Wyoming granites differ from the bulk magma compositions erupted by these huge Andean supervolcanos. “This paper will certainly provoke a deeper look into how ancient Archean granites can be used to leverage understanding of the ‘volcanic-plutonic connection’ at supervolcanoes.”

________________

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UPDATE: More News on Magnetic Field – Galaxy Coming

This new finding is yet another strong affirmation towards Battros 2012 ‘Equation’. This study displays a distinct connection between celestial events and our galaxy Milky Way. My Equation implements a natural systemic process of repeated cyclical events throughout its life. This is the essence of my current research I have named the “Science of Cycles”.

New Equation:
Increase Charged Particles and Decreased Magnetic Field → Increase Outer Core Convection → Increase of Mantle Plumes → Increase in Earthquake and Volcanoes → Cools Mantle and Outer Core → Return of Outer Core Convection (Mitch Battros – July 2012)

new_equation 2012_m

An international team of astronomers has discovered a possible connection between the magnetic fields of supernova remnants and that of our own Milky Way Galaxy. The study, recently published in the journal Astronomy & Astrophysics, found that the orientation of supernova remnants can help astronomers understand the nature and shape of the magnetic field of the Milky Way Galaxy itself.

“In supernova explosions, charged particles are accelerated close to the speed-of-light and then speed through space as cosmic rays, some finding their way to Earth”, says Jennifer West, Faculty of Science, University of Manitoba, lead author of the study. The Earth is constantly being bombarded by trillions of these cosmic rays, with some of the highest energy ones coming from supernovae and supernova remnants. These can interfere with electronic equipment and be hazardous to people, particularly people flying in aircraft or living in space.

supernova_remnants_magnetic_field_m

Magnetic fields play important roles in many astrophysical processes such as solar flares, stellar evolution, galaxy dynamics, and even the evolution of the universe. They also play a very important role in the dynamics of supernova remnants, which represent some of the most extreme environments in the universe, with conditions unlike anything we can duplicate on Earth.

Supernova remnants are what’s left after stars explode, effectively blowing giant bubbles in the interstellar medium. Many supernova remnants are double-lobed astronomical objects that look like two facing hamburger buns, with the invisible “burger” axes aligned with local magnetic fields.

supernova remnants_m

For this study, the researchers examined archival radio images of every known supernova remnant in the galaxy to compile a complete sample of objects with this double-lobed shape. Observations show that these axes point in different directions, astronomers were not sure if the orientation is random, caused by local effects, or whether the direction may be influenced by the Milky Way Galaxy’s own magnetic field. By comparing the orientation of the supernova remnants in the images with models based on simulations of the galaxy’s magnetic field, the astronomers found a connection between the supernova remnants and their environment.

Astronomers used a super computer in the Department of Physics and Astronomy at the University of Manitoba to create these models of supernova remnants. The appearance of the simulated supernova remnants depended on the orientation of the magnetic field lines for the direction of a particular remnant, and also differing distances from the Sun.

Samar Safi-Harb, West’s doctoral thesis advisor, notes: “West’s research further stresses the importance of studying supernova remnants, which not only host the heavy elements we are made of, but also help us understand the interplay between these fascinating objects and cosmic magnetism.”

West and her colleagues found that about 80 out of 300 known supernova remnants in the galaxy have the double-lobed shape and most of these (about 75 percent) have models that match the orientation for at least some distances along the line of sight. This gives some insight into the nature of supernova remnants and also helps refine our understanding of the galaxy’s magnetic field. Furthermore, this research helps astronomers understand how cosmic rays can journey to us on this “galactic superhighway.”

_____________

_science-of-cycles33

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BREAKING NEWS: Astronomers Discover Connection Between Magnetic Fields of Supernova and Our Milky Way

This new finding is yet another strong affirmation towards Battros 2012 ‘Equation’. This study displays a distinct connection between celestial events and our galaxy Milky Way. My Equation implements a natural systemic process of repeated cyclical events throughout its life. This is the essence of my current research I have named the “Science of Cycles”.

New Equation:
Increase Charged Particles and Decreased Magnetic Field → Increase Outer Core Convection → Increase of Mantle Plumes → Increase in Earthquake and Volcanoes → Cools Mantle and Outer Core → Return of Outer Core Convection (Mitch Battros – July 2012)

new_equation 2012_m

An international team of astronomers has discovered a possible connection between the magnetic fields of supernova remnants and that of our own Milky Way Galaxy. The study, recently published in the journal Astronomy & Astrophysics, found that the orientation of supernova remnants can help astronomers understand the nature and shape of the magnetic field of the Milky Way Galaxy itself.

“In supernova explosions, charged particles are accelerated close to the speed-of-light and then speed through space as cosmic rays, some finding their way to Earth”, says Jennifer West, Faculty of Science, University of Manitoba, lead author of the study. The Earth is constantly being bombarded by trillions of these cosmic rays, with some of the highest energy ones coming from supernovae and supernova remnants. These can interfere with electronic equipment and be hazardous to people, particularly people flying in aircraft or living in space.

supernova_remnants_magnetic_field_m

Magnetic fields play important roles in many astrophysical processes such as solar flares, stellar evolution, galaxy dynamics, and even the evolution of the universe. They also play a very important role in the dynamics of supernova remnants, which represent some of the most extreme environments in the universe, with conditions unlike anything we can duplicate on Earth.

Supernova remnants are what’s left after stars explode, effectively blowing giant bubbles in the interstellar medium. Many supernova remnants are double-lobed astronomical objects that look like two facing hamburger buns, with the invisible “burger” axes aligned with local magnetic fields.

supernova remnants_m

For this study, the researchers examined archival radio images of every known supernova remnant in the galaxy to compile a complete sample of objects with this double-lobed shape. Observations show that these axes point in different directions, astronomers were not sure if the orientation is random, caused by local effects, or whether the direction may be influenced by the Milky Way Galaxy’s own magnetic field. By comparing the orientation of the supernova remnants in the images with models based on simulations of the galaxy’s magnetic field, the astronomers found a connection between the supernova remnants and their environment.

Astronomers used a super computer in the Department of Physics and Astronomy at the University of Manitoba to create these models of supernova remnants. The appearance of the simulated supernova remnants depended on the orientation of the magnetic field lines for the direction of a particular remnant, and also differing distances from the Sun.

Samar Safi-Harb, West’s doctoral thesis advisor, notes: “West’s research further stresses the importance of studying supernova remnants, which not only host the heavy elements we are made of, but also help us understand the interplay between these fascinating objects and cosmic magnetism.”

West and her colleagues found that about 80 out of 300 known supernova remnants in the galaxy have the double-lobed shape and most of these (about 75 percent) have models that match the orientation for at least some distances along the line of sight. This gives some insight into the nature of supernova remnants and also helps refine our understanding of the galaxy’s magnetic field. Furthermore, this research helps astronomers understand how cosmic rays can journey to us on this “galactic superhighway.”