It has been 124 days since the launch of the Solar Probe Parker, and several weeks ago since it made the closest way to any ever-expanded spatial spell. Now, scientists have access to the data from the close procedure. Share four researchers at the recent meeting of the American Geo-American Union in Washington, D.C. what they hope they can learn from the study. They hope that data from Parker Solar Probe will help them answer a ten-year ago question about Sun, crown, and sunshine.
Scientists who analyze the sun have been in a position; expects for a long time, and is worth waiting.
"Heliophysicists have been waiting for more than 60 years to have such confidence to be possible. The sun mysteries we are trying to solve is waiting for in the crown." – Nicola Fox, director of the Department NASA Headquarters Heliophysics.
The mind is around the first phase of sunset at PSP. From October 31 to November 11, 2018, Parker Solar Probe completed its first level of sunset, move through the sunshine – the corona – and its previous collection of data with four sets of new instruments. The PSP will sink on its & # 39; Sun 24 hours, for 24 degrees of sun events. Throughout the mission, the probe 7 flybys use Venus gravity-help to gradually reduce its orbit around its sunrise.
Each level of a solar meeting will occur when the probe is inside .25 AU of the sun, and during these times data science tools are collected. The probe is open to large heat and radiation at that time, and can not communicate. It's just once and it's a & # 39; Continue every step in which the data can be returned to Earth to look at heliophysicists.
"Parker Solar Probe gives us the dimensions that are necessary to understand the solar philosophy that has been rough for ten years." – Nour Raouafi, PSP project scientist, JHU / APL.
The first phase of a finalized solar meeting, and although there is still much work, Parker scientists share some of their hopes of learning from the mission of the American Geo-American Union in Washington DC.
When the PSP mission was designed, scientists have to face three important questions regarding heliophysics:
- How is the outdoor atmosphere of Sun, a & # 39; fountain, heated to temperature about 300 times higher than the surface shown below?
- How does sunset accelerate as soon as the high distances we are experiencing; see?
- How does some of the sunlight overflow some of the rocky hillside off the sun?
"Parker Solar Probe gives us the dimensions that are necessary to understand the solar philosophy that has been a shame for decades ago," said scientist Nour Raouafi, a Parker Solar Probe researcher at Lab Johnson Hopkins in physical science in Laurel, Maryland. "To close the link, local sampling needs to be solved to the sun and the young sunshine and Parker Solar Probe can do so just."
Spacecraft has not been as close to Sun as PSP is, so scientists do not know exactly what to do; expectations of the data. They know what they hope to learn, but they can not be sure.
"We do not know what to expect so close to Sun so we can get the data, and we may see a new philosophy," said Raouafi. "Parker's research trip – the potential for a new search is huge."
Reports from the PSP have suggested that a & # 39; first quality of quality data science. This is partly due to the fact that Venus was, when it was possible to take the dimensions of the planet, and verify that tools were working. Some data from science level has been downloaded only, but heliophysicists need to wait until they get hands on everything. Due to the challenges in the mission profile, some of the science data from this event will not go down until after the second solar meeting at its # 39; mission in April 2019.
Solar Parker Park is the only spatial boat that explores the sun. Other crafts include SOHO (Solar Heliospheric Observatory), the SDO (Solar Dynamics Observatory), and the STEREO-A (Solar and Territorial Federation) spacecraft). But none of these three have come closer to sunshine as a PSP, though they are in the same way. make science important for themselves.
"Parker Solar Probe is going to an area that we have never visited," said Terry Kucera, a solar physicist at the NASA Space Flight Flight Center in Greenbelt, Maryland. "At the same time, from a distance, we can look at the sun crown, which drives the complex environment around the Solar Parker Park."
The gif below shows real data from the NASA's Spaceer Solar Observation Relations (STEREO-A) website, along with the long-term Parker Solar Probe situation and # 39; he travels through the sunshine at his & her; The first phase of sun events in November 2018. These images are & # 39; main context for understanding Parker Solar Probe comments. (Identity Credit: NASA / STEREO)
Each of the spaceships that investigate its & # 39; Sun gives a different context and perspective for what others are. see The PSP will travel within .25 AU, length & # 39; does STEREO affect its & # 39; Sun at about 1 AU. The SDO is in a geometric orbit on Earth, and SOHO is an orbit around a LaGrange Sunscreen point 1.
"The STEREO objective is about to look at its disorder from different places and is part of a Parker – a measure from a previous perspective , "said Kucera.
Science is broadly and PSP scientists appear to indicate that progress is progressively in models on how the Sun works as part of a PSP role, even though we do not get handwritten answers to our questions.
The models are a good way of determining theories of solar physics. Creating a model that is dependent on a specific device for explaining crown teasures – for example, a special type of plasma wave called the Alfvén wave – scientists can explore predicting & # 39 ; Model data model from Parker Solar Probe to find out if they are going up. If they do, that's a # 39; It means that it is perhaps the most important theory that is happening. If you do not do it, it's back to the drag board.
"We have been a great success in creating the sun-shaped structure while it is largely donated," said Riley. "Parker Solar Probe gives an unambiguous measure that hinders the models and the theory that is embedded within them."
The fast pace of the PSP is essential for its work.
The Sun moves around once every 27 days as we can see from Earth, and the sun structures are in place; Driving much of his activity to move with him. That creates a problem for scientists, because they can not be sure if the difference they see is driven by real changes to the area that they are experiencing; doing its functionality – a periodic change – or caused by a & # 39; obtaining solar material from a new source department – spatial change Post-PSP speed means it can be more difficult than that.
The gif below from a model that shows how the sunshine is Flow out of the Sun, with a view of the WISPR Parker Solar Probe on the cover.
Credit: Preliminary Science Inc.
At some points, Parker Solar Probe is fast enough to go to # 39; match just the speed of the sun, which means that Parker "spans one area of the sun for a short time. Scientists can be sure that changes in data through this time caused by real changes to sunlight, rather than sunscreen.
Parker Solar Probe is part of NASA's Living with a Star program to explore parts of the Sun-Earth system that directly impact on life and society.