Science Highlights

Scroll down to find more information about refereed publications, conference proceedings and current projects.

Refereed publications

• Simulating the environment around planet-hosting stars — I. coronal structure

Alvarado-G��mez, 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.

• Impulsivity parameter for solar flares

Fajardo-Mendieta W. G.; Mart��nez-Oliveros, J. C.; Alvarado-G��mez, J. D.; Calvo-Mozo, B.
Keywords: Solar Flares - Impulsive Phase - Hard X-ray

This work has been published in The Astrophysical Journal.

• A spectro-polarimetric study of the planet-hosting G-dwarf, HD 147513

Hussain, G. A. J.; Alvarado-G��mez, 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.

• Activity and magnetic field structure of the Sun-like planet-hosting star HD 1237

Alvarado-G��mez, 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.

• Magneto-acoustic energetics study of the seismically active flare of 15 February 2011

Alvarado-G��mez, J. D.; Buitrago-Casas, J. C.; Mart��nez-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.

Conference proceedings

• Line Profile Variations of Solar Analog Stars: Chromospheric Indexes vs. Li Abundance - The Host Star Search

Amazo-G��mez, E. M.; Harutyunyan, G.; Alvarado-G��mez, J. D.; Strassmeier, K. G.; Weber, M.; Carroll, T. A.
Proceedings of the International Astronomical Union, Volume 305

• The Coronal Structure of the Sun-Like Exoplanet-Host GJ 3021

Alvarado-G��mez, J. D.; Cohen, O.; Hussain, G. A. J.; Grunhut, J.; Garraffo, C.; Drake, J.
Proceedings of the International Astronomical Union, Volume 305

• Cool Stars and Space Weather

Vidotto, A. A.; Jardine, M.; Cameron, A. C.; Morin, J.; Villadsen, J.; Saar, S. H.; Alvarado-G��mez, J. D.; Cohen, Ofer; Holzwarth, V.; Poppenhaeger, K.; Reville, V.
Proceedings of the 18th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun

• Determination of the geomagnetic bow shock position and interaction angle with the solar wind using THEMIS data

Amazo-Gomez, E.; Alvarado-G��mez, J. D.; Calvo-Mozo, B.; Mozer, F.
Proceedings of the 21st Young Scientists' Conference on Astronomy and Space Physics

Current projects

• The Magnetic Field and Planetary Environment of the Young Sun iota Hor: Following the Activity Cycle

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

• Far Beyond the Sun: Mapping the Magnetic Cycle of the Young Solar-Analog iota Hor

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

• Mapping Magnetic Fields to Model Mass Loss Rates in Moderately Active Sun-like Stars

Type: Observing Time Proposal
Co-Investigators: Hussain, G. A. J.; Morin, J.; Donati, J.-F.; Folsom, C.; Petit, P.; Hebrard, E.
Telescope/Instrument: T��lescope Bernard Lyot/NARVAL
Allocated time: 19.0 Hours
Period: 2015-A

• Modeling the Corona, Winds and Space Weather Conditions in Moderately Active Sun-Like Stars

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

External Interests

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.

�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 capable�

—Socrates.

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