Juan Camilo Guevara Gomez

• de Jorge Henriques, Vasco Manuel; Jafarzadeh, Shahin; Guevara Gomez, Juan Camilo; Eklund, Henrik; Wedemeyer, Sven & Szydlarski, Mikolaj [Show all 8 contributors for this article] (2022). The Solar ALMA Science Archive (SALSA): First release, SALAT, and FITS header standard. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 659. doi: 10.1051/0004-6361/202142291. Full text in Research Archive
• Guevara Gomez, Juan Camilo; Jafarzadeh, Shahin; Wedemeyer, Sven; Szydlarski, Mikolaj Marcin; Stangalini, M. & Fleck, Bernhard [Show all 7 contributors for this article] (2020). High-frequency oscillations in small chromospheric bright features observed with Atacama Large Millimetre/Submillimetre Array. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. ISSN 1364-503X. 379(2190). doi: 10.1098/rsta.2020.0184. Full text in Research Archive
• Jafarzadeh, Shahin; Wedemeyer, Sven; Fleck, Bernhard; Stangalini, M.; Jess, D. B. & Morton, R. J. [Show all 15 contributors for this article] (2020). An overall view of temperature oscillations in the solar chromosphere with ALMA. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. ISSN 1364-503X. 379(2190). doi: 10.1098/rsta.2020.0174. Full text in Research Archive
• Eklund, Henrik; Wedemeyer, Sven; Szydlarski, Mikolaj Marcin; Jafarzadeh, Shahin & Guevara Gomez, Juan Camilo (2020). The Sun at millimeter wavelengths: II. Small-scale dynamic events in ALMA Band 3. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 644. doi: 10.1051/0004-6361/202038250. Full text in Research Archive
• Wedemeyer, Sven; Szydlarski, Mikolaj Marcin; Jafarzadeh, Shahin; Eklund, Henrik; Guevara Gomez, Juan Camilo & Bastian, Tim [Show all 10 contributors for this article] (2020). The Sun at millimeter wavelengths: I. Introduction to ALMA Band 3 observations. Astronomy and Astrophysics (A & A). ISSN 0004-6361. 635. doi: 10.1051/0004-6361/201937122. Full text in Research Archive

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• Guevara Gomez, Juan Camilo; Jafarzadeh, Shahin & Wedemeyer, Sven (2021). Oscillations in chromospheric small-scale bright features observed with ALMA.
• Wedemeyer, Sven; Szydlarski, Mikolaj; Jafarzadeh, Shahin; Henriques, Vasco; Guevara Gomez, Juan Camilo & Eklund, Henrik [Show all 10 contributors for this article] (2021). Lessons learned from 5 years of solar observing with ALMA.
• Wedemeyer, Sven; Szydlarski, Mikolaj; Jafarzadeh, Shahin; Henriques, Vasco; Eklund, Henrik & Guevara Gomez, Juan Camilo [Show all 11 contributors for this article] (2021). A brief introduction to solar observing with ALMA .
• Wedemeyer, Sven; Szydlarski, Mikolaj; Jafarzadeh, Shahin; Henriques, Vasco; Eklund, Henrik & Guevara Gomez, Juan Camilo [Show all 10 contributors for this article] (2021). Five years observing the solar chromosphere with ALMA - First results and future opportunities.
• Guevara Gomez, Juan Camilo (2021). ALMA co-alignment with other observations.
• Guevara Gomez, Juan Camilo; Jafarzadeh, Shahin & Wedemeyer, Sven (2021). Oscillations in small-scale bright features observed with ALMA. Show summary

  Small-scale chromospheric bright features in a plage/enhanced network are identified in solar ALMA observations. The features present oscillations in brightness temperature, size and horizontal velocity. Interestingly, an anti-correlation between brightness temperature and size is also evident, suggesting that these features might be associated to fast-sausage MHD modes. A statistical analysis is carried out to quantify the oscillation periods of the three quantities and the phase angles between the perturbations in temperature and size. The values found are in agreement with periods of high frequency oscillations in other layers of the solar atmosphere.

• Guevara Gomez, Juan Camilo & Wedemeyer, Sven (2021). Dynamics of small-scale dark features observed by the Atacama Large Millimeter/Submillimeter Array (ALMA). Show summary

  Observations of the Sun with the Atacama Large Millimeter/submillimeter Array (ALMA) now allow for more quantitative determination of temperatures in the chromosphere. ALMA observations of Quiet Sun regions in receiver Band 3 (3 mm; 100 GHz) exhibit small-scale features that resemble a mesh-like chromospheric pattern, similar to what was earlier detected with other chromospheric diagnostics. Tracking the features in time results in lifetimes, velocities and sizes, which are analysed within the context given by co-aligned images of the Solar Dynamics Observatory (SDO). Here we present a statistical analysis and compare the results with a 3D MHD simulation with Bifrost of an enhanced network which has been degraded to the ALMA spatial resolution. The match between observations and simulations suggests that the dark features are post-shock regions. The thermodynamics and kinetic properties derived from the ALMA observations will therefore enhance our understanding of the small-scale dynamics and heating of the solar chromosphere and its potential implications for other solar-like stars.

• Wedemeyer, Sven; Szydlarski, Mikolaj; Jafarzadeh, Shahin; de Jorge Henriques, Vasco Manuel; Eklund, Henrik & Guevara Gomez, Juan Camilo [Show all 10 contributors for this article] (2021). Observing the Sun with ALMA - First results and future opportunities.
• Wedemeyer, Sven; Szydlarski, Mikolaj; Jafarzadeh, Shahin; de Jorge Henriques, Vasco Manuel; Eklund, Henrik & Guevara Gomez, Juan Camilo [Show all 10 contributors for this article] (2021). Five years observing the solar chromosphere with ALMA - First results and future opportunities.
• Guevara Gomez, Juan Camilo & Wedemeyer, Sven (2021). Dynamics of small-scale dark features observed by the Atacama Large Millimeter/submillimeter Array (ALMA).
• Guevara Gomez, Juan Camilo; Martinez Oliveros, Juan Carlos; Krucker, S; Hudson, Hugh & Buitrago Casas, Juan Camilo (2019). On the observation of a classical loop-prominence system during the 2017 September 10 flare .
• Guevara Gomez, Juan Camilo; Wedemeyer, Sven; Jafarzadeh, Shahin & Szydlarski, Mikolaj Marcin (2019). Dynamics of solar isolated features observed by the Atacama Large Millimeter/submillimeter Array (ALMA).
• Guevara Gomez, Juan Camilo; Wedemeyer, Sven; Jafarzadeh, Shahin & Szydlarski, Mikolaj Marcin (2019). Structure and dynamics of isolated features in the solar chromosphere observed with ALMA.

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