The Event Horizon Telescope (EHT) collaboration has observed spirals of light escaping from the edge of the supermassive black hole at the center of our Milky Way Galaxy. The results were published in The Astrophysical Journal Letters.
Recent News
Radio Observations of Compact Symmetric Objects Shed New Light on Black Hole Phenomenon
Compact Symmetric Objects (CSOs) harbor supermassive black holes that emit powerful jets traveling at near-light speeds in opposite directions. However, unlike their counterparts in other galaxies, these jets remain compact, not extending out to great distances as expected. For decades, scientists presumed that CSOs were youthful entities, with their jets destined to expand over time. New findings, published in three papers in The Astrophysical Journal, challenge this notion.
NRAO and SpaceX Coordinate to Protect Radio Astronomy
Supported by the National Science Foundation, NRAO and SpaceX are developing a system called Operational Data Sharing (ODS) that provides the current status (position in the sky and observing frequency) of two of its telescopes: the VLA in New Mexico and the Green Bank Telescope (GBT) in West Virginia.
Listen to the Music of a Dying Star
The ALMA Music Box, currently on display in Japan, now available on iTunes
R Sculptoris, a massive red giant star located roughly 1000 light-years away in the constellation of Sculptor, is in the final stages of its life, and is violently expelling massive amounts of gas into space as it depletes its supply of fuel.
The ALMA Music Box plays musical disks inscribed with information from ALMA’s observations of this dying star, based on images taken at 70 different radio frequencies. The Music Box, a collaboration between the National Astronomical Observatory of Japan, PARTY New York, and Qosmo, plays 70 musical disks, each corresponding to a different radio frequency observation. The disks feature holes corresponding to points of intensity in the emission.
The ALMA Music Box will be on display at the 21st Century Museum of Contemporary Art, Kanazawa, Japan until November 15, 2015. The exhibition also features a miniature model of a Japanese 12-meter ALMA antenna and two receiver cartridges, which are installed into the antennas to receive radio waves.
The exhibition’s success recently prompted the production of the crowd-funded compilation CD “Music for a Dying Star.” This audio set features an assortment of melodies from the box integrated into original tracks from 11 international artists, including Taeji Sawai, Takagi Masakatsu, Throwing a Spoon, and Christian Fennesz.
“Music for a Dying Star” can now be purchased in the iTunes store for $14.88. More information about the ALMA Music Box and the CD is available on the CD’s dedicated website.
More information
ALMA, an international astronomy facility, is a partnership of 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.
Recent News
Astronomers Unveil Strong Magnetic Fields Spiraling at the Edge of Milky Way’s Central Black Hole
The Event Horizon Telescope (EHT) collaboration has observed spirals of light escaping from the edge of the supermassive black hole at the center of our Milky Way Galaxy. The results were published in The Astrophysical Journal Letters.
Radio Observations of Compact Symmetric Objects Shed New Light on Black Hole Phenomenon
Compact Symmetric Objects (CSOs) harbor supermassive black holes that emit powerful jets traveling at near-light speeds in opposite directions. However, unlike their counterparts in other galaxies, these jets remain compact, not extending out to great distances as expected. For decades, scientists presumed that CSOs were youthful entities, with their jets destined to expand over time. New findings, published in three papers in The Astrophysical Journal, challenge this notion.
NRAO and SpaceX Coordinate to Protect Radio Astronomy
Supported by the National Science Foundation, NRAO and SpaceX are developing a system called Operational Data Sharing (ODS) that provides the current status (position in the sky and observing frequency) of two of its telescopes: the VLA in New Mexico and the Green Bank Telescope (GBT) in West Virginia.