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-Gö¨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.; Martö­nez-Oliveros, J. C.; Alvarado-Gö¨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-Gö¨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-Gö¨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-Gö¨mez, J. D.; Buitrago-Casas, J. C.; Martö­nez-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-Gö¨mez, E. M.; Harutyunyan, G.; Alvarado-Gö¨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-Gö¨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-Gö¨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-Gö¨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: TöŠlescope 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.

áĢNo 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 capableáģ

—Socrates.

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