Zobrazeno 1 - 10
of 3 073
pro vyhledávání: '"A, Deforest"'
Autor:
Dayeh, Maher A., Starkey, Michael J., Elliott, Heather A., Attie, Raphael, DeForest, Craig E., Bučik, Radoslav, Desai, Mihir I.
Solar energetic particles (SEPs) associated with shocks driven by fast coronal mass ejections (CMEs) or shocks developed by corotating interaction regions (CIRs) often extend to high energies, and are thus key elements of space weather. The PUNCH mis
Externí odkaz:
http://arxiv.org/abs/2411.16510
SynCOM is a package of procedures written in IDL (Interactive Data Language) that simulates transient solar wind flows. Each function within SynCOM handles specific tasks, such as initializing parameters, generating synthetic profiles, creating Gauss
Externí odkaz:
http://arxiv.org/abs/2410.01004
Autor:
Filho, Valmir P. Moraes, Uritsky, Vadim M., Thompson, Barbara J., Gibson, Sarah E., DeForest, Craig E.
Publikováno v:
The Astrophysical Journal, Volume 975, Number 2, 2024
The Synthetic Corona Outflow Model (SynCOM), an empirical model, simulates the solar corona's dynamics to match high-resolution observations, providing a useful resource for testing velocity measurement algorithms. SynCOM generates synthetic images d
Externí odkaz:
http://arxiv.org/abs/2407.09383
Autor:
Seaton, Daniel B., Caspi, Amir, Alzate, Nathalia, Davis, Sarah J., DeForest, Alec R., DeForest, Craig E., Erickson, Nicholas F., Kovac, Sarah A., Patel, Ritesh, Osterman, Steven N., Tosolini, Anna, Van Kooten, Samuel J., West, Matthew J.
Publikováno v:
Solar Physics, Vol. 299, 79 (20pp); 2024 June 10
We present results of a dual eclipse expedition to observe the solar corona from two sites during the annular solar eclipse of 2023 October 14, using a novel coronagraph designed to be accessible for amateurs and students to build and deploy. The cor
Externí odkaz:
http://arxiv.org/abs/2404.02097
Autor:
DeForest, Craig E., Seaton, Daniel B., Caspi, Amir, Beasley, Matt, Davis, Sarah J., Erickson, Nicholas F., Kovac, Sarah A., Patel, Ritesh, Tosolini, Anna, West, Matthew J.
Publikováno v:
Solar Physics, Vol. 299, 78 (23pp); 2024 June 10
We present the design of a portable coronagraph, CATEcor, that incorporates a novel "shaded truss" style of external occultation and serves as a proof-of-concept for that family of coronagraphs. The shaded truss design style has the potential for bro
Externí odkaz:
http://arxiv.org/abs/2405.08739
We describe a novel method for modeling the global, steady solar wind using photospheric magnetic fields as a driving boundary condition. Prior wind models in this class include both rapid heuristic methods that use potential field extrapolation and
Externí odkaz:
http://arxiv.org/abs/2402.10370
Autor:
Patel, Ritesh, Seaton, Daniel B., Caspi, Amir, Kovac, Sarah A., Davis, Sarah J., Carini, John P., Gardner, Charles H., Gosain, Sanjay, Klein, Viliam, Laatsch, Shawn A., Reiff, Patricia H., Saini, Nikita, Weir, Rachael, Zietlow, Daniel W., Elmore, David F., Ursache, Andrei E., DeForest, Craig E., West, Matthew J., Bruenjes, Fred, Winter, Jen
Publikováno v:
Research Notes of the AAS, Vol. 7, Issue 11, 241; 2023 November
The broadband solar K-corona is linearly polarized due to Thomson scattering. Various strategies have been used to represent coronal polarization. Here, we present a new way to visualize the polarized corona, using observations from the 2023 April 20
Externí odkaz:
http://arxiv.org/abs/2312.07490
Autor:
Cranmer, Steven R., Chhiber, Rohit, Gilly, Chris R., Cairns, Iver H., Colaninno, Robin C., McComas, David J., Raouafi, Nour E., Usmanov, Arcadi V., Gibson, Sarah E., DeForest, Craig E.
The solar wind is the extension of the Sun's hot and ionized corona, and it exists in a state of continuous expansion into interplanetary space. The radial distance at which the wind's outflow speed exceeds the phase speed of Alfvenic and fast-mode m
Externí odkaz:
http://arxiv.org/abs/2310.05887
Autor:
Uritsky, Vadim M., Karpen, Judith T., Raouafi, Nour E., Kumar, Pankaj, DeVore, C. Richard, Deforest, Craig E.
We present results of a quantitative analysis of structured plasma outflows above a polar coronal hole observed by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory spacecraft. In a 6-hour interval of continuous high-cadence SDO
Externí odkaz:
http://arxiv.org/abs/2309.06407
Autor:
Cohen, Ian J., Baker, Dan, Bortnik, Jacob, Brandt, Pontus, Burch, Jim, Caspi, Amir, Clark, George, Cohen, Ofer, DeForest, Craig, Emslie, Gordon, Gkioulidou, Matina, Halford, Alexa, Higginson, Aleida, Jaynes, Allison, Klein, Kristopher, Kletzing, Craig, McGranaghan, Ryan, Miles, David, Nikoukar, Romina, Nykyrii, Katariina, Paxton, Larry, Prockter, Louise, Spence, Harlan, Swartz, William H., Turner, Drew L., Westlake, Joe, Whittlesey, Phyllis, Wiltberger, Michael
Publikováno v:
Bulletin of the AAS, Vol. 55, Issue 3, Whitepaper #071 (6pp); 2023 July 31
The field of Heliophysics has a branding problem. We need an answer to the question: ``What is Heliophysics\?'', the answer to which should clearly and succinctly defines our science in a compelling way that simultaneously introduces a sense of wonde
Externí odkaz:
http://arxiv.org/abs/2308.12308