Abstract
The citizen Continental-America Telescopic Eclipse (CATE) Experiment was a new type of citizen science experiment designed to capture a time sequence of white-light coronal observations during totality from 17:16 to 18:48 UT on 2017 August 21. Using identical instruments the CATE group imaged the inner corona from 1 to 2.1 RSun with 1 43 pixels at a cadence of 2.1 s. A slow coronal mass ejection (CME) started on the SW limb of the Sun before the total eclipse began. An analysis of CATE data from 17:22 to 17:39 UT maps the spatial distribution of coronal flow velocities from about 1.2 to 2.1 RSun, and shows the CME material accelerates from about 0 to 200 km s−1 across this part of the corona. This CME is observed by LASCO C2 at 3.1–13 RSun with a constant speed of 254 km s−1. The CATE and LASCO observations are not fit by either constant acceleration nor spatially uniform velocity change, and so the CME acceleration mechanism must produce variable acceleration in this region of the corona.
| Original language | English (US) |
|---|---|
| Article number | 014201 |
| Journal | Publications of the Astronomical Society of the Pacific |
| Volume | 132 |
| Issue number | 1007 |
| DOIs | |
| State | Published - Jan 2020 |
Keywords
- Sun: corona
- Sun: coronal mass ejections (CMEs)
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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In: Publications of the Astronomical Society of the Pacific, Vol. 132, No. 1007, 014201, 01.2020.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Acceleration of coronal mass ejection plasma in the low corona as measured by the citizen CATE experiment
AU - Penn, Matthew J.
AU - Baer, Robert
AU - Walter, Donald
AU - Pierce, Michael
AU - Gelderman, Richard
AU - Ursache, Andrei
AU - Elmore, David
AU - Mitchell, Adrianna
AU - Kovac, Sarah
AU - Hare, Honor
AU - McKay, Myles
AU - Jensen, Logan
AU - Watson, Zachary
AU - Conley, Mike
AU - Powers, Lynn
AU - Lazarova, Marianna
AU - Wright, Joseph
AU - Young, David
AU - Isberner, Fred
AU - Hart, C. Alexandra
AU - Sheeley, N. R.
AU - Penn, Debbie
AU - Allen-Penn, Kate
AU - Alder, Bruce
AU - Alder, Ryan
AU - Hall-Conley, Geri
AU - Gerdes, David
AU - Weber, Katherine
AU - Johnson, Jeffrey
AU - Matzek, Gerald
AU - Somes, Steven
AU - Sobnosky, Rob
AU - McGowen, Robert
AU - Meo, Michael
AU - Proctor, Damani
AU - Wessinger, Charlie
AU - Schilling, Jeannine
AU - Kerr, Jay
AU - Beltzer-Sweeney, Alexander
AU - Falatoun, Alex
AU - Higgins, David
AU - Boyce, Grady
AU - Hettick, Jared
AU - Blanco, Philip
AU - Dixon, Scott
AU - Ardebilianfard, Sepehr
AU - Boyce, Pat
AU - Lighthill, Richard
AU - Lighthill, Denese
AU - Anderson, David
AU - Anderson, Mine
AU - Schad, Thomas
AU - Smith, Sonna
AU - Jensen, Declan
AU - Allen, Anthony
AU - Smith, Donavan
AU - Brandon, Gage
AU - Earp, Joe
AU - Earp, Jane
AU - Blair, Bob
AU - Claver, Chuck F.
AU - Claver, Jennifer A.
AU - Claver, Ryan H.
AU - Hoops, Danielle
AU - Rivera, Esteban
AU - Gibson, Llanee
AU - Hiner, Martin
AU - Lann, Rein
AU - Miller, Shaedyn
AU - Briggs, Burton
AU - Davis, Karan
AU - Jackson, Brian
AU - Kautzsch, Kaleb
AU - Sandidge, Wesley
AU - Lucas, Russell
AU - Gregg, Duane
AU - Kamenetzky, Julia
AU - Rivera, Tiffany
AU - Shaw, Joe
AU - Scherrer, Bryan
AU - Sandbak, Dylan
AU - McFate, Richard
AU - Harris, Wilson
AU - Brasier, Zachery
AU - McNeil, Stephen
AU - Jensen, Jack
AU - Jensen, Makai
AU - Moore, Mason
AU - Temple, Alexandria
AU - Vanderhorst, Thomas
AU - Kautz, Richard
AU - Bellorado, Orion
AU - Jenkins, Lavor R.
AU - Pantuso, Corey
AU - Carey, Marley
AU - Byrnes, Josh
AU - Scholtens, Kyle
AU - Web, Julian
AU - Baker, Brain
AU - Barngrover, Katie
AU - Hathaway, Drew
AU - Smith, Kallen
AU - Chandler, Kellyn
AU - Hinkle, Lydia
AU - Chandler, Ione
AU - Gisler, Galen
AU - Benner, Jack
AU - Mas, Madison
AU - Rogers, Maya
AU - Moore, Prescott
AU - Pelofske, Elijah
AU - Gulley, Stephen
AU - Short, Beth
AU - Crooker, Isabel
AU - Hammock, Jennifer
AU - Cardenas, Katsina
AU - Cardenas, Kateri
AU - Wellman, Jennifer
AU - Roy, Mark
AU - Meyer, Joe
AU - Brough, Jalynne
AU - Brough, Kameron
AU - Nelson, Tim
AU - Nelson, Zack
AU - Russell, Caleb
AU - Bautz, Theresa
AU - Weitzel, Eric
AU - Wistisen, Michele
AU - Aagard, Shae
AU - Whipps, Zachary
AU - Neuroth, Logan
AU - Poste, Dawson
AU - Worthen, Connor
AU - Gosain, Sanjay
AU - Steward, Mark
AU - Gosain, Vanshita
AU - Gosain, Ruchi
AU - Jorgensen, Janet
AU - Doucette, Eleanor
AU - Doucette, Reba
AU - Iwen, Elliott
AU - Cochran, Alexus
AU - Stith, James
AU - Scribner, Doug
AU - Kenney, Austen
AU - Pisciotti, Kolby
AU - Pease, Irene
AU - Cynamon, Samuel
AU - Cynamon, Charles
AU - Cynamon, Dawn
AU - Tolbert, Bart
AU - Dupree, Jean A.
AU - Weremeichik, Jeremy
AU - Pindell, Nathan
AU - Stives, Kristen
AU - Simacek, Thomas K.
AU - Simacek, Yolanta G.
AU - Simacek, Anne L.
AU - Boeck, Wayne
AU - Boeck, Andreea
AU - Ryan, Austin
AU - Wierzorec, Gabriel
AU - Klebe, Dimitri
AU - Costanza, Bryan
AU - Cerny, Arnie
AU - Schmale, Trevor
AU - Hoffman, Tessa
AU - Streeter, Sam
AU - Erickson, Jack
AU - McClellan, Michele
AU - Erickson, Ella
AU - Brettell, Brynn
AU - Shoffner, Savannah
AU - McClellan, Emilie
AU - Vanvoorhis, Julie
AU - Bramhall, Cole
AU - Stelly, Daniel
AU - Bee, Bentley
AU - Acevedo, Bruno
AU - Kroeger, Madison
AU - Trumpenski, Ben
AU - Sump, Nolan
AU - Brook, Liam
AU - Ernzen, Jagert
AU - Lewis, Jessica
AU - Maderak, Ryan
AU - Kennedy, Charles
AU - Dembinski, David
AU - Wright, Rita
AU - Foster, Michael
AU - Ahmadbasir, Mohammad
AU - Laycox, Monty
AU - Foster, James
AU - Orr, Ethan
AU - Staab, Ashley
AU - Speck, Angela
AU - Baldridge, Sean
AU - Kegley, Lucy
AU - Bavlnka, Jordan
AU - Ballew, Thomas
AU - Callen, Bruce
AU - Ojakangas, Gregory
AU - Bremer, Mark
AU - Angliongto, Maryanne
AU - Redecker, Mark
AU - Bremer, Chris
AU - Hill, Peggy
AU - Rodgers, Michael
AU - Duncan, Jordan
AU - Fincher, Sam
AU - Nielsen, Ben
AU - Hasler, Samantha
AU - Shivelbine, Taylor
AU - Howard, Tyler
AU - Midden, Chris
AU - Patrick, Sean
AU - Glenn, Kerry
AU - Mandrell, Chris
AU - Dawson, Kyle
AU - Cortez, Margaret
AU - Levsky, Alyssa
AU - Gallaba, Dinuka
AU - Perrone, Mason
AU - Taylor, Jasmyn
AU - Yanamandra-Fisher, Padma A.
AU - Harper, Howard
AU - Adams, Lindsay
AU - Springer, Michaela
AU - Menard, Billyjoe
AU - Boggs, Dylan
AU - Lynch, Caitlin
AU - Watson, Jacob
AU - York, Andi
AU - Matthews, David
AU - Brown, Kiley
AU - Garrison, Dylan
AU - Mangin, Jonathan
AU - Mangin, Isaac
AU - Birriel, Jennifer
AU - Birriel, Ignacio
AU - Yess, Capp
AU - Anderson, Jesse
AU - Caudill, Ethan
AU - Smith, Allyn
AU - Buckner, Spencer
AU - Longhurst, Russ
AU - Fagan, Ben
AU - Nations, Christian
AU - Dimatties, Jeffrey
AU - Thompson, Patricia
AU - Garrison, David
AU - Garrison, Thomas
AU - Garrison, William
AU - Kidd, Mary
AU - Baker, Maria
AU - Ledford, Mary Beth
AU - Winebarger, Amy
AU - Freed, Michael
AU - Church, Morgyn
AU - Dickens, Jim
AU - Anderson, Bob
AU - Smith, Ned
AU - Dorsey, Lynne
AU - Justice, Doug
AU - Zavala, Daniel
AU - Stockbridge, Zach
AU - Brittain, Sean
AU - Jensen, Stanley
AU - Leiendecker, Harrison
AU - Thompson, Erin
AU - Deady, Michelle
AU - Quinn-Hughes, Kelly
AU - Slimmer, David
AU - Granger, Valerie
AU - Laroche, Michael
AU - Laroche, Serena Hill
AU - Manspeaker, Rachel
AU - Nguyen, Peter
AU - Smith, Daniel
AU - Payne, Jim
AU - Zissett, Jerry
AU - Roberts, Arianna M.
AU - Roberts, Gabrielle W.
AU - Roberts, Harrison
AU - Riddle, Amy
AU - Ursache, Corina
AU - Ursache, Elena
N1 - Funding Information: The CATE team gratefully acknowledges financial and multi-site equipment support from Jen Winter (Daystar LLC), David Garrison (Mathworks, Inc), Corey Lee (Celestron LLC), and Stephen Lauro (colorMaker, Inc). The CATE team appreciates the site equipment support from Rosamond Kinzler of the American Museum of Natural History and from Bill Kloepping. The CATE team acknowledge Research Corporation for Science Advancement award 24174, NASA Cooperative Agreement NNX16AB92A, NASA award NNX17AH76G, and NSF award 1732227. D.W. acknowledges NSF award 1901296. The CME catalog is generated and maintained at the CDAW Data Center by NASA and The Catholic University of America in cooperation with the Naval Research Laboratory. SOHO is a project of international cooperation between ESA and NASA. M.J.P. acknowledges Priscilla Piano, Michael Peralta, Claire Raftery, Zarah Brown, Kristen Erickson, Richard Berry, the Vail School District Governing Board, Kelly Beatty from Sky & Telescope, Claude and Teresa Plymate, Carol Hayden, Attilla Danko’s Clear Sky Charts, and Wil Overgaard of the Weiser Idaho School District. Funding Information: The Citizen CATE Experiment was a unique citizen science project. It was funded by a combination of federal, corporate and private contributions, and involved volunteers from middle school students through professional solar astronomers. The volunteers were granted full ownership of the CATE equipment, and several groups continue to use the equipment for educational and outreach projects today. Publisher Copyright: © 2019. The Astronomical Society of the Pacific. Printed in the U.S.A.
PY - 2020/1
Y1 - 2020/1
N2 - The citizen Continental-America Telescopic Eclipse (CATE) Experiment was a new type of citizen science experiment designed to capture a time sequence of white-light coronal observations during totality from 17:16 to 18:48 UT on 2017 August 21. Using identical instruments the CATE group imaged the inner corona from 1 to 2.1 RSun with 1 43 pixels at a cadence of 2.1 s. A slow coronal mass ejection (CME) started on the SW limb of the Sun before the total eclipse began. An analysis of CATE data from 17:22 to 17:39 UT maps the spatial distribution of coronal flow velocities from about 1.2 to 2.1 RSun, and shows the CME material accelerates from about 0 to 200 km s−1 across this part of the corona. This CME is observed by LASCO C2 at 3.1–13 RSun with a constant speed of 254 km s−1. The CATE and LASCO observations are not fit by either constant acceleration nor spatially uniform velocity change, and so the CME acceleration mechanism must produce variable acceleration in this region of the corona.
AB - The citizen Continental-America Telescopic Eclipse (CATE) Experiment was a new type of citizen science experiment designed to capture a time sequence of white-light coronal observations during totality from 17:16 to 18:48 UT on 2017 August 21. Using identical instruments the CATE group imaged the inner corona from 1 to 2.1 RSun with 1 43 pixels at a cadence of 2.1 s. A slow coronal mass ejection (CME) started on the SW limb of the Sun before the total eclipse began. An analysis of CATE data from 17:22 to 17:39 UT maps the spatial distribution of coronal flow velocities from about 1.2 to 2.1 RSun, and shows the CME material accelerates from about 0 to 200 km s−1 across this part of the corona. This CME is observed by LASCO C2 at 3.1–13 RSun with a constant speed of 254 km s−1. The CATE and LASCO observations are not fit by either constant acceleration nor spatially uniform velocity change, and so the CME acceleration mechanism must produce variable acceleration in this region of the corona.
KW - Sun: corona
KW - Sun: coronal mass ejections (CMEs)
UR - http://www.scopus.com/inward/record.url?scp=85081281737&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85081281737&partnerID=8YFLogxK
U2 - 10.1088/1538-3873/ab558c
DO - 10.1088/1538-3873/ab558c
M3 - Article
AN - SCOPUS:85081281737
SN - 0004-6280
VL - 132
JO - Publications of the Astronomical Society of the Pacific
JF - Publications of the Astronomical Society of the Pacific
IS - 1007
M1 - 014201
ER -