Exploring coronal abundances of M dwarfs at moderate activity levels

Authors: Chebly, J. J., Poppenhäger, K., Alvarado-Gómez, J. D., Wood, B. E.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2503.09316

A comparative study of two X2.2 and X9.3 solar flares observed with HARPS-N: Reconciling Sun-as-a-star spectroscopy and high-spatial resolution solar observations in the context of the solar-stellar connection

Authors: Pietrow, A. G. M., Cretignier, M., Druett, M. K., Alvarado-Gómez, J. D., Hofmeister, S. J., Verma, M., Kamlah, R., Baratella, M., Amazo-Gomez, E. M., Kontogiannis, I., Dineva, E., Warmuth, A., Denker, C., Poppenhaeger, K., Andriienko, O., Dumusque, X., Löfdahl, M. G.

Source: A&A Volume 682, February 2024, A46

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2309.03373

Searching for magnetic fields in pulsating A-type stars: the discovery of a strong field in the probable delta Sct star HD340577 and a null result for the gamma Dor star HR8799

Authors: Hubrig, S., Jarvinen, S. P., Alvarado-Gomez, J. D., Ilyin, I., Schöller, M.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2308.09441

Far beyond the Sun: II. Probing the stellar magnetism of the young Sun {\iota} Horologii from the photosphere to its corona

Authors: Amazo-Gómez, E. M., Alvarado-Gómez, J. D., Poppenhaeger, K., Hussain, G. A. J., Wood, B. E., Drake, J. J., Nascimento Jr., J. -D. do, Anthony, F., Sanz-Forcada, J., Stelzer, B., Donati, J. F., Del Sordo, F., Damasso, M., Redfield, S., König, P. C., Hébrard, G., Miles-Páez, P. A.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2307.01744

Quantification of the environment of cool stars using numerical simulations

Authors: Chebly, J. J., Alvarado-Gómez, J. D., Poppenhaeger, K.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2211.03432

Connecting Solar and Stellar Flares/CMEs: Expanding Heliophysics to Encompass Exoplanetary Space Weather

Authors: Lynch, B. J., Wood, B. E., Jin, M., Török, T., Sun, X., Palmerio, E., Osten, R. A., Vidotto, A. A., Cohen, O., Alvarado-Gómez, J. D., Drake, J. J., Airapetian, V. S., Notsu, Y., Veronig, A., Namekata, K., Winslow, R. M., Jian, L. K., Vourlidas, A., Lugaz, N., Al-Haddad, N., Manchester, W. B., Scolini, C., Farrugia, C. J., Davies, E. E., Nieves-Chinchilla, T., Carcaboso, F., Lee, C. O., Salman, T. M.

Source: Bulletin of the American Astronomical Society, 55(3), 254, 2023

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics

Access URL: http://arxiv.org/abs/2210.06476

Stellar Energetic Particle Transport in the Turbulent and CME-disrupted Stellar Wind of AU~Microscopii

Authors: Fraschetti, F., Alvarado-Gómez, J. D., Drake, J. J., CoheN, O., Garraffo, C.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Physics - Space Physics

Access URL: http://arxiv.org/abs/2207.08952

Space Weather-driven Variations in Ly$\alpha$ Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b

Authors: Cohen, O., Alvarado-Gomez, J. D., Drake, J. J., Harbach, L. M., Garraffo, C., Fraschetti, F.

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2205.08900

Solar H{\alpha} excess during Solar Cycle 24 from full-disk filtergrams of the Chromospheric Telescope

Authors: Diercke, A., Kuckein, C., Cauley, P. W., Poppenhäger, K., Alvarado-Gómez, J. D., Dineva, E., Denker, C.

Source: A&A 661, A107 (2022)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2203.04357

The corona of GJ 1151 in the context of star-planet interaction

Authors: Foster, G., Poppenhaeger, K., Alvarado-Gómez, J. D., Schmitt, J. H. M. M.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/2007.05317

Coupled MHD -- Hybrid Simulations of Space Plasmas

Authors: Moschou, S. P., Sokolov, I. V., Cohen, O., Toth, G., Drake, J. J., Huang, Z., Garraffo, C., Alvarado-Gómez, J. D., Gombosi, T.

Subject Terms: Physics - Computational Physics, Astrophysics - Solar and Stellar Astrophysics, Physics - Plasma Physics, Physics - Space Physics

Access URL: http://arxiv.org/abs/1911.08660

Multi-wavelength variability of the young solar analog iota Hor. X-ray cycle, star spots, flares, and UV emission

Authors: Sanz-Forcada, J., Stelzer, B., Coffaro, M., Raetz, S., Alvarado-Gómez, J. D.

Source: A&A 631, A45 (2019)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/1909.01320

Stellar energetic particles in the magnetically turbulent habitable zones of TRAPPIST-1-like planetary systems

Authors: Fraschetti, F., Drake, J. J., Alvarado-Gomez, J. D., Moschou, S. P., Garraffo, C., Cohen, O.

Subject Terms: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics, Physics - Plasma Physics, Physics - Space Physics

Access URL: http://arxiv.org/abs/1902.03732

Simultaneous Kepler/K2 and XMM-Netwon observations of superflares in the Pleiades

Authors: Guarcello, M. G., Micela, G., Sciortino, S., Lopez-Santiago, J., Argiroffi, C., Reale, F., Flaccomio, E., Alvarado-Gomez, J. D., Antoniou, V., Drake, J. J., Pillitteri, I., Rebull, L. M., Stauffer, J.

Source: A&A 622, A210 (2019)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/1901.07263

The Magnetic Nature of the Cataclysmic Variable Period Gap

Authors: Garraffo, C., Drake, J. J., Alvarado-Gomez, J. D., Moschou, S. P., Cohen, O.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1808.09450

The Revolution Revolution: magnetic morphology driven spin-down

Authors: Garraffo, C., Drake, J. J., Dotter, A., Choi, J., Burke, D. J., Moschou, S. P., Alvarado-Gomez, J. D., Kashyap, V. L., Cohen, O.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1804.01986

Simulating the environment around planet-hosting stars - II. Stellar winds and inner astrospheres

Authors: Alvarado-Gómez, J. D., Hussain, G. A. J., Cohen, O., Drake, J. J., Garraffo, C., Grunhut, J., Gombosi, T. I.

Source: A&A 594, A95 (2016)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1607.08405

Impulsivity Parameter for Solar Flares

Authors: Fajardo-Mendieta, W. G., Martínez-Oliveros, J. C., Alvarado-Gómez, J. D., Calvo-Mozo, B.

Source: The Astrophysical Journal, 2016, 818, 56

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1602.03958

Simulating the Environment Around Planet-Hosting Stars - I. Coronal Structure

Authors: Alvarado-Gómez, J. D., Hussain, G. A. J., Cohen, O., Drake, J. J., Garraffo, C., Grunhut, J., Gombosi, T. I.

Source: A&A 588, A28 (2016)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1601.04443

Activity and Magnetic Field Structure of the Sun-Like Planet Hosting Star HD 1237

Authors: Alvarado-Gómez, 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.

Source: A&A 582, A38 (2015)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/1507.04117