JuliцЎn David Alvarado GцЁmez
ASTROPHYSICIST
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ASTROPHYSICIST
I am a PhD Student/Researcher at the International Max Planck Research School (IMPRS) on Astrophysics, with a position at the European Southern Observatory (ESO). My research is mainly focused on magnetic fields and their influence over activity, winds and the environment around the Sun and other late-type stars. For this I use space and ground-based observations, in combination with detailed plasma and magneto-hydrodynamics (MHD) numerical simulations.
I studied physics (B.Sc.) and astrophysics (M.Sc.) at the Universidad Nacional de Colombia and the Observatorio AstronцЁmico Nacional, where I took active part in the consolidation of the Group of Solar Astrophysics (GoSA). You can find more details about my work in the next pages.
The Sun is our natural astrophysical laboratory. By studying it in detail, we have gained most of our understanding of the various plasma processes in the Universe. In particular, it provides an unprecedent view of the interactions and phenomena associated with astrophysical magnetic fields. The complexity of such phenomena can only be matched by their beauty.
Magnetic and activity cycles, solar corona, transient events (flares/CMEs), solar wind and space weather.
EUV, SXR, HXR, Magnetic-Doppler data | 3D MHD numerical simulations.
The large number of stars in the night sky offer endless possibilities in astrophysics. In recent years, advanced instrumentation and observational techniques have expanded our knowledge on stellar magnetism dramatically. This, combined with the ever-growing field of exoplanets, provides new synergies between solar and stellar systems science.
Solar-Stellar connection, coronae and winds, exo-space weather.
Spectro-polarimetry with NARVAL, ESPaDOnS and HARPS | 3D MHD numerical simulations.
Scroll down to find more information about refereed publications, conference proceedings and current projects.
Alvarado-GцЁmez, J. D.; Hussain, G. A. J.; Cohen, O.; Drake, J. J.; Garraffo, C.; Grunhut, J.; Gombosi, T.I.
Keywords: Coronae - Magnetic Fields - Late-Type - Magnetohydrodynamics (MHD)
This work has been published in Astronomy & Astrophysics.
Fajardo-Mendieta W. G.; Martцnez-Oliveros, J. C.; Alvarado-GцЁmez, J. D.; Calvo-Mozo, B.
Keywords: Solar Flares - Impulsive Phase - Hard X-ray
This work has been published in The Astrophysical Journal.
Hussain, G. A. J.; Alvarado-GцЁmez, J. D.; Grunhut, J.; Fares, R.; Donati, J.-F.; Alecian, E.; Kochukhov, O.; Oksala, M.; Morin, J.; Redfield, S.; Cohen, O.; Drake, J. J.; Jardine, M.; Matt, S.; Petit, P.; Walter, F. M.
Keywords: Activity - Magnetic Fields - Solar Type - Spectropolarimetry - Radial Velocities
This work has been published in Astronomy & Astrophysics.
Alvarado-GцЁmez, J. D.; Hussain, G. A. J.; Grunhut, J.; Fares, R.; Donati, J.-F.; Alecian, E.; Kochukhov, O.; Oksala, M.; Morin, J.; Redfield, S.; Cohen, O.; Drake, J. J.; Jardine, M.; Matt, S.; Petit, P.; Walter, F. M.
Keywords: Activity - Magnetic Fields - Solar Type - Spectropolarimetry - Zeeman Doppler Imaging (ZDI)
This work has been published in Astronomy & Astrophysics.
Alvarado-GцЁmez, J. D.; Buitrago-Casas, J. C.; Martцnez-Oliveros, J. C.; Lindsey, C.; Hudson, H.; Calvo-Mozo, B.
Keywords: Magnetic Field Variation - Flares - Local Helioseismology - Sunquakes
This work has been published in Solar Physics.
Amazo-GцЁmez, E. M.; Harutyunyan, G.; Alvarado-GцЁmez, J. D.; Strassmeier, K. G.; Weber, M.; Carroll, T. A.
Proceedings of the International Astronomical Union, Volume 305
Alvarado-GцЁmez, J. D.; Cohen, O.; Hussain, G. A. J.; Grunhut, J.; Garraffo, C.; Drake, J.
Proceedings of the International Astronomical Union, Volume 305
Vidotto, A. A.; Jardine, M.; Cameron, A. C.; Morin, J.; Villadsen, J.; Saar, S. H.; Alvarado-GцЁmez, J. D.; Cohen, Ofer; Holzwarth, V.; Poppenhaeger, K.; Reville, V.
Proceedings of the 18th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
Amazo-Gomez, E.; Alvarado-GцЁmez, J. D.; Calvo-Mozo, B.; Mozer, F.
Proceedings of the 21st Young Scientists' Conference on Astronomy and Space Physics
Type: Observing Time Proposal
Co-Investigators: Hussain, G. A. J.; Grunhut, J.; Stelzer, B.; Sanz-Forcada, J.; Cohen, O.; Drake, J.
Telescope/Instrument: ESO 3.6m/HARPSpol
Allocated time: 37.0 Hours
Period: P97
Type: Observing Time Proposal
Co-Investigators: Hussain, G. A. J.; Grunhut, J.; Stelzer, B.; Sanz-Forcada, J.; Cohen, O.; Drake, J.
Telescope/Instrument: ESO 3.6m/HARPSpol
Allocated time: 33.6 Hours
Period: P96
Type: Observing Time Proposal
Co-Investigators: Hussain, G. A. J.; Morin, J.; Donati, J.-F.; Folsom, C.; Petit, P.; Hebrard, E.
Telescope/Instrument: Tц©lescope Bernard Lyot/NARVAL
Allocated time: 19.0 Hours
Period: 2015-A
Type: Computing Time Proposal
Co-Investigators: Hussain, G. A. J.; Grunhut, J.; Cohen, O.; Drake, J.
Facility/Cluster: Leibniz Supercomputing Centre (LRZ)/Computational Center for Particle and Astrophysics (C2PAP)
Allocated time: 340k core hours
Period: 2015-2016
The balance between body and mind is fundamental. While Astrophysics puts my mind to the test, I have found in the discipline of Calisthenics a natural path for developing body strength, agility and resistance. You can check some of my progress below.
б«No man has the right to be an amateur in the matter of physical training.
It is a shame for a man to grow old without seeing the beauty and strength of which his body is capableб»
European Southern Observatory
Karl-Schwarzschild-Straцџe 2
85748, Garching bei Mцјnchen
Germany
Phone: (+49) (89) 3200 6672
Fax: (+49) (89) 3200 6480
E-mail: jalvarad@eso.org