Julio Ramirez Velez

Idiomas

Áreas de atuação

Produções bibliográficas

• 2018 RAMÍREZ VÉLEZ, J. C. ; CÓRDOVA BARBOSA, J. P. . Using machine learning algorithms to measure stellar magnetic fields. ASTRONOMY & ASTROPHYSICS , v. 619, p. A22, 2018.

• 2018 RAMOS-LARIOS, G ; GUERRERO, M A ; NIGOCHE-NETRO, A ; OLGUÍN, L ; GÓMEZ-MUÑOZ, M A ; SABIN, L ; VÁZQUEZ, R ; AKRAS, S ; RAMÍREZ VÉLEZ, J C ; CHÁVEZ, M . The interaction of the halo around the butterfly planetary nebula NGC-650-1 with the interstellar medium. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 475, p. 932-941, 2018.

• 2017 AKRAS, S. ; RAMÍREZ VÉLEZ, J. C. ; NANOURIS, N. ; RAMOS-LARIOS, G. ; LÓPEZ, J. M. ; HIRIART, D. ; PANOGLOU, D. . Multi-band polarimetry of post-asymptotic giant branch stars - I. Optical measurements. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 466, p. 2948-2982, 2017.

• 2016 RAMÍREZ VÉLEZ, J. C. ; STIFT, M. J. ; NAVARRO, S. G. ; CÓRDOVA, J. P. ; SABIN, L. ; RUELAS-MAYORGA, A. . Stellar longitudinal magnetic field determination through multi-Zeeman signatures. ASTRONOMY & ASTROPHYSICS , v. 596, p. A62, 2016.

• 2016 RUELAS-MAYORGA, A. ; SÁNCHEZ, L. J. ; TRUJILLO-LARA, M. ; NIGOCHE-NETRO, A. ; ECHEVARRÍA, J. ; GARCÍA, A. M. ; RAMÍREZ-VÉLEZ, J. . Variation of the Tully-Fisher relation as a function of the magnitude interval of a sample of galaxies. ASTROPHYSICS AND SPACE SCIENCE , v. 361, p. 332, 2016.

• 2014 MARSDEN, S. C. ; PETIT, P. ; JEFFERS, S. V. ; MORIN, J. ; FARES, R. ; REINERS, A. ; DO NASCIMENTO, J.- D. ; AURIERE, M. ; BOUVIER, J. ; CARTER, B. D. ; CATALA, C. ; DINTRANS, B. ; DONATI, J.- F. ; GASTINE, T. ; JARDINE, M. ; KONSTANTINOVA-ANTOVA, R. ; LANOUX, J. ; LIGNIERES, F. ; MORGENTHALER, A. ; RAMIREZ-VELEZ, J. C. ; THEADO, S. ; VAN GROOTEL, V. . A BCool magnetic snapshot survey of solar-type stars. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 444, p. 3517-3536, 2014.

• 2012 RAMÍREZ VÉLEZ, J. C. ; BLANCO-CANO, X. ; AGUILAR-RODRIGUEZ, E. ; RUSSELL, C. T. ; KAJDIč ; JIAN, L. K. ; LUHMANN, J. G. . Whistler waves associated with weak interplanetary shocks. JOURNAL OF GEOPHYSICAL RESEARCH , v. 117, p. n/a-n/a, 2012.

• 2012 MORGENTHALER, A. ; PETIT, P. ; SAAR, S. ; SOLANKI, S. K. ; MORIN, J. ; MARSDEN, S. C. ; AURIÈRE, M. ; DINTRANS, B. ; FARES, R. ; GASTINE, T. ; LANOUX, J. ; LIGNIÈRES, F. ; PALETOU, F. ; RAMÍREZ VÉLEZ, J. C. ; THÉADO, S. ; VAN GROOTEL, V. . Long-term magnetic field monitoring of the Sun-like star Bootis A. ASTRONOMY & ASTROPHYSICS , v. 540, p. A138, 2012.

• 2011 AGUILAR-RODRIGUEZ, E. ; BLANCO-CANO, X. ; RUSSELL, C. T. ; LUHMANN, J. G. ; JIAN, L. K. ; RAMÍREZ VÉLEZ, J. C. . Dual observations of interplanetary shocks associated with stream interaction regions. JOURNAL OF GEOPHYSICAL RESEARCH , v. 116, p. n/a-n/a, 2011.

• 2011 WAITE, I. A. ; MARSDEN, S. C. ; CARTER, B. D. ; HART, R. ; DONATI, J.-F. ; RAMÍREZ VÉLEZ, J. C. ; SEMEL, M. ; DUNSTONE, N. . Magnetic fields and differential rotation on the pre-main sequence - III. The early-G star HD 106506. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 413, p. 1949-1960, 2011.

• 2011 MARSDEN, S. C. ; JARDINE, M. M. ; RAMÍREZ VÉLEZ, J. C. ; ALECIAN, E. ; BROWN, C. J. ; CARTER, B. D. ; DONATI, J.-F. ; DUNSTONE, N. ; HART, R. ; SEMEL, M. ; WAITE, I. A. . Magnetic fields and differential rotation on the pre-main sequence - II. The early-G star HD 141943 - coronal magnetic field, Hα emission and differential rotation. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 413, p. 1939-1948, 2011.

• 2011 MARSDEN, S. C. ; JARDINE, M. M. ; RAMÍREZ VÉLEZ, J. C. ; ALECIAN, E. ; BROWN, C. J. ; CARTER, B. D. ; DONATI, J.-F. ; DUNSTONE, N. ; HART, R. ; SEMEL, M. ; WAITE, I. A. . Magnetic fields and differential rotation on the pre-main sequence --I. The early-G star HD 141943 - brightness and magnetic topologies. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 413, p. 1922-1938, 2011.

• 2010 RAMÍREZ VÉLEZ, J. C. ; SEMEL, M. ; STIFT, M. ; MARTÍNEZ GONZÁLEZ, M. J. ; PETIT, P. ; DUNSTONE, N. . Spectropolarimetric multi line analysis of stellar magnetic fields. ASTRONOMY & ASTROPHYSICS , v. 512, p. A6, 2010.

• 2009 HUSSAIN, G. A. J. ; COLLIER CAMERON, A. ; JARDINE, M. M. ; DUNSTONE, N. ; VELEZ, J. RAMIREZ ; STEMPELS, H. C. ; DONATI, J.-F. ; SEMEL, M. ; AULANIER, G. ; HARRIES, T. ; BOUVIER, J. ; DOUGADOS, C. ; FERREIRA, J. ; CARTER, B. D. ; LAWSON, W. A. . Surface magnetic fields on two accreting T-Tauri stars: CV-Cha and CR-Cha. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 398, p. 189-200, 2009.

• 2009 SEMEL, M. ; RAMÍREZ VÉLEZ, J. C. ; MARTÍNEZ GONZÁLEZ, M. J. ; ASENSIO RAMOS, A. ; STIFT, M. J. ; LÓPEZ ARISTE, A. ; LEONE, F. . Multiline Zeeman signatures through line addition. ASTRONOMY & ASTROPHYSICS , v. 504, p. 1003-1009, 2009.

• 2008 MORIN, J. ; DONATI, J.-F. ; PETIT, P. ; DELFOSSE, X. ; FORVEILLE, T. ; ALBERT, L. ; AURIÈRE, M. ; CABANAC, R. ; DINTRANS, B. ; FARES, R. ; GASTINE, T. ; JARDINE, M. M. ; LIGNIÈRES, F. ; PALETOU, F. ; RAMIREZ VELEZ, J. C. ; THÉADO, S. . Large-scale magnetic topologies of mid M dwarfs. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , v. 390, p. 567-581, 2008.

• RAMÍREZ VÉLEZ, J. C. ; LÓPEZ ARISTE, A. ; SEMEL, M. . Strength distribution of solar magnetic fields in photospheric quiet Sun regions. ASTRONOMY & ASTROPHYSICS , v. 487, p. 731-740, 2008.

• MARTÍNEZ GONZÁLEZ, M. J. ; ASENSIO RAMOS, A. ; CARROLL, T. A. ; KOPF, M. ; RAMÍREZ VÉLEZ, J. C. ; SEMEL, M. . PCA detection and denoising of Zeeman signatures in polarised stellar spectra. ASTRONOMY & ASTROPHYSICS , v. 486, p. 637-646, 2008.