J. A. López

Publication List Details

Period

1991 - 2009

Number

117

Co-Authors

High-speed knots in the hourglass shaped planetary nebula Hubble 12 (2009)

Vaytet, N. M. H., Rushton, A. P., Lloyd, M., López, J. A., Meaburn, J., O'Brien, T. J., ...

We present a detailed kinematical analysis of the young compact hourglass-shaped planetary nebula Hb 12. We performed optical imaging and longslit spectroscopy of Hb 12 using the Manchester echelle...

The outflows and 3D structure of NGC 6337, a planetary nebula with a close binary nucleus (2009)

García-Díaz, Ma. T., Clark, D. M., López, J. A., Steffen, W., Richer, M. G.

NGC 6337 is a member of the rare group of planetary nebulae where a close binary nucleus has been identified. The nebula's morphology and emission line profiles are both unusual, particularly the...

Diseño y análisis de dos tipologías estructurales para su utilización como estructuras auxiliares en el diseño de jardines (2009)

López, J. A., Mellado, P., Callejón, A. J., Vargas, J. M.

In gardening and more particularly in the design of gardens and urban parks, nowadays exits the necessity to introduce useful auxiliary structures for the shelter of the users to the solar radiation,...

Proteomic analysis of the human receptive versus non-receptive endometrium using differential in-gel electrophoresis and MALDI-MS unveils stathmin 1 and annexin A2 as differentially regulated (2009)

Domínguez, F., Garrido-Gómez, T., López, J.A., Camafeita, E., Quiñonero, A., Pellicer, A., ...

BACKGROUNDThe transcriptome of the endometrium throughout the menstrual cycle has been described in recent years. However, the proteomic of the window of implantation remains unknown. The aim of this...

Isoscaling and the high Temperature limit (2008)

Dorso, C. O., Hernández, C. M., López, J. A., Muñoz, J. A.

This study shows that isoscaling, usually studied in nuclear reactions, is a phenomenon common to all cases of fair sampling. Exact expressions for the yield ratio $R_{21}$ and approximate...

Velocity Structure in the Orion Nebula. II. Emission Line Atlas of Partially Ionized to Fully Ionized Gas (2008)

García-Díaz, Ma. T., Henney, W. J., López, J. A., Doi, T.

We present an atlas of three-dimensional (position-position-velocity) spectra of the Orion Nebula in optical emission lines from a variety of different ionization stages: [O I] 6300, [S II]...

The planetary nebula NGC 1360, a test case of magnetic collimation and evolution after the fast wind (2008)

Garcia-Diaz, M. T., López, J. A., Garcia-Segura, G., Richer, M. G., Steffen, W.

The central star of this nebula has an observed intense magnetic field and the fast wind is no longer present, indicating that a back flow process has probably developed. Long-slit, spatially...

Velocity structure in the orion nebula. ii. emission line atlas of partially ionized to fully ionized gas (2008)

J. A. López, T. Doi, W. J. Henney

We present an atlas4 of three-dimensional (position-position-velocity) spectra of the Orion Nebula in optical emission lines from a variety of different ionization stages: [O I] 6300˚A, [S II]...

Intervalent bis(mu-aziridinato)M-II–M-I complexes (M = Rh, Ir): Delocalized metallo-radicals or delocalized aminyl radicals? (2008)

Tejel, C., Ciriano, M.A., Passarelli, V., López, J.A., Bruin, B. De

Reactions of the methoxo complexes [{M([mu-OMe)(cod)}(2)] (cod = 1,5-cyclooctadiene, M=Rh, Ir) with 2,2-dimethylaziridine (Haz) give the mixed-bridged complexes [{M-2(mu-az)([mu-OMe)(cod)(2)}] [(M =...

Hubble-type outflows of the high-excitation, poly-polar planetary nebula NGC 6302 -- from expansion proper motions (2007)

Meaburn, J., Lloyd, M., Vaytet, N. M. H., López, J. A.

The ouflowing proper motions of fifteen knots in the dominant northwestern lobe of the high-excitation poly-polar planetary nebula NGC 6302 have been determined by comparing their positions relative...

Optical line profiles of the Helix planetary nebula (NGC 7293) to large radii (2007)

Meaburn, J., López, J. A., Richer, M. G.

New, very long (25'), cuts of spatially resolved profiles of the Halpha and [N II] optical emission lines have been obtained over the face of the Helix planetary nebula, NGC 7293. These directions...

THE THEORY OF PHOTOIONIZED JETS (2007)

A. C. Raga, L. López-martín, J. A. López, Autónoma México, J. Meaburn

En un artículo anterior, hemos discutido la fotoionización de un jet Herbig-Haro (HH) inmerso en una región H II. Aquí presentamos nuevos cálculos de un jet HH fotoionizado eyectado por una...

FLIERS AS STAGNATION KNOTS IN PLANETARY NEBULAE (2007)

W. Steffen, J. A. López, A. J. Lim

Presentamos un modelo alternativo para la formación de regiones rápidas de baja ionización (FLIERs, ingl. fast low-ionization emission regions) en nebulosas planetarias. El modelo reproduce muchas...

RevMexAA (Serie de Conferencias), 9, 230--231 (2000) (2007)

Observations Of Jets, L. López-martín, A. C. Raga, J. A. López, Autónoma México, J. Meaburn

We present high resolution long-slit spectra of HH 444 and numerical simulations for this Herbig-Haro object. From the comparison between observations and simulations we are able to study the...

RevMexAA (Serie de Conferencias), 10, 61--64 (2001) (2007)

Theory And Observations, L. López-martín, A. C. Raga, J. A. López, J. Meaburn

The discovery of a system of Herbig--Haro objects ejected by young, low mass stars in the # Orionis region (Reipurth et al. 1998) has given rise to models of the photoionization of a neutral jet by...

WINDS, BUBBLES,... BUT MAGNETIZED: SOLUTIONS FOR HIGH SPEED POST-AGB WINDS AND THEIR EXTREME COLLIMATION (2007)

G. García-segura, J. A. López, J. Franco

Este artículo propone soluciones para el origen de los vientos de estrellas del tipo post-AGB, su aceleración hasta alta velocidad, y la subsecuente formación de nebulosas protoplanetarias...

TIME VARIATION IN THE RADIO CONTINUUM EMISSION ASSOCIATED WITH THE SURROUNDINGS OF THE NUCLEUS OF THE PLANETARY NEBULA KjPn 8 (2007)

L. F. Rodríguez, Y. Gómez, Campus Morelia, J. A. López, Autónoma México, Autónoma México

RESUMEN Presentamos nuevas observaciones de radiocontinuo de alta sensitividad y con resolución angular del orden de un segundo de arco, hechas con el Very Large Array (VLA) hacia la nebulosa...

MHD MODELS FOR PNE (2007)

G. García-segura, J. Franco, J. A. López, N. Langer

Se presenta un escenario auto consistente para explicar la morfología de las nebulosas planetarias. El escenario es consistente con la distribución Galáctica de los diferentes tipos morfológicos....

STAGNATION KNOTS IN PLANETARY NEBULAE (2007)

W. Steffen, J. A. López, A. J. Lim

Presentamos un modelo alternativo para la formación de regiones rápidas de baja ionización (FLIERs, ingl. fast low-ionization emission regions) en nebulosas planetarias. En este modelo, un choque...

COLLIMATED OUTFLOWS IN PLANETARY NEBULAE (2007)

Jane Arthur, Nancy Brickhouse, José Franco, J. A. López, Autónoma México

Nuestro entendimiento sobre la formación de nebulosas planetarias (PNe) ha sido profundamente influenciado en años recientes por la detección de flujos colimados de alta velocidad en estos...

RevMexAA (Serie de Conferencias), 12, 174--174 (2002) (2007)

Diagnostic Diagrams Of, H. Riesgo-tirado, J. A. López

indicate the presence of shocks from high velocity outflows. A full account of these results will be published shortly elsewhere. REFERENCES

RevMexAA (Serie de Conferencias), 12, 117--122 (2002) (2007)

Morphology And Galactic, G. García-segura, J. Franco, J. A. López, N. Langer

We review recent works on morphology and Galactic distribution of planetary nebulae (PNe), as well as recent advances in MHD modeling of PNe. We arrive at a tentative explanation for the connection...

FRIDA: Near Infrared Imager and Integral Field Spectroscopy for GTC (2007)

A. Prieto, A.M. Watson, B. Sánchez, C. Espejo, F. Garzón, F. J. Fuentes, ...

FRIDA (inFRrared Imager and Dissector for the Adaptive optics system of the Gran Telescopio Canarias) is being designed as a diffraction limited instrument with broad and narrow band imaging and...

Frida: the first instrument for the adaptive optics system of GTC (2007)

A. Prieto, A. Watson, B. Sánchez, C. Espejo, F. Garzón, F. J. Fuentes, ...

FRIDA (inFRrared Imager and Dissector for the Adaptive optics system of the Gran Telescopio Canarias) is being designed as a diffraction limited instrument with broad and narrow band imaging and...

The nature of the very extended emission line regions associated with active galactic nuclei (2006)

J. A. López, M. Richer, M. Rozas

The nature of the very extended emission line regions associated with active galactic nuclei

Emission lines from Jets in planetary nebulae (2006)

J. A. López

Emission lines from Jets in planetary nebulae

Unveiling the Morphology and Kinematics of LoTr 5, the Highest Galactic Latitude PN (2006)

J. Meaburn, J. A. López, M. F. Graham

Unveiling the Morphology and Kinematics of LoTr 5, the Highest Galactic Latitude PN

Diagnostic diagrams of electron density versus excitation for planetary nebulae (2006)

J. A. López, H. Riesgo Tirado

Diagnostic diagrams of electron density versus excitation for planetary nebulae

The formation of collimated outflows and concentric rings in magnetized Planetary Nebulae (2006)

J. A. López, J. Franco, G. García Segura, S. Kurtz

The formation of collimated outflows and concentric rings in magnetized Planetary Nebulae

Winds, Bubbles and Outflows in Planetary Nebulae (2006)

J. A. López

Winds, Bubbles and Outflows in Planetary Nebulae

Winds, Bubbles, ...but Magnetized: solutions for High Speed Post-AGB Winds and their Extreme Collimation (2006)

J. A. López, J. Franco, G. García Segura

Winds, Bubbles, ...but Magnetized: solutions for High Speed Post-AGB Winds and their Extreme Collimation

Collimated outflows in planetary nebulae (2006)

J. A. López

Collimated outflows in planetary nebulae

Radio Continuum and H I Observations of the Remarkable Planetary Nebula KJPN 8 (2006)

Y. Gómez, Luis F. Rodríguez, J. A. López

Radio Continuum and H I Observations of the Remarkable Planetary Nebula KJPN 8

Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8 (2006)

Y. Gómez, Luis F. Rodríguez, J. A. López

Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8

Revised Diagnostic Diagrams for Planetary Nebulae (2006)

Riesgo, H., López, J. A.

Diagnostic diagrams of electron density - excitation for a sample of 613 planetary nebulae are presented. The present extensive sample allows the definition of new statistical limits for the...

Frida: diffraction limited imaging and integral field spectroscopy with gtc (2006)

Bringas , V., Cuevas , S., Díaz , J. J., Eikenberry , S. S., Espejo , C., Flores , R., ...

FRIDA (inFRrared Imager and Dissector for the Adaptive optics system of the Gran Telescopio Canarias) está siendo diseñado como un instrumento con óptica limitada por difracción con capacidades...

Revised Diagnostic Diagrams for Planetary Nebulae (2006)

López , J. A., Riesgo , Hortensia

Diagnostic diagrams of electron density-excitation for a sample of 613 planetary nebulae are presented. The present extensive sample allows the definition of new statistical limits for the...

Morpho-Kinematic Modeling of Gaseous Nebulae with SHAPE (2006)

López , J. A., Steffen , Wolfgang

We present a powerful new tool to analyse and disentangle the 3-D geometry and kinematic structure of gaseous nebulae. The method consists in combining commercially available digital animation...

Dynamical aspects of isoscaling (2005)

Dorso, C. O., Escudero, C. R., Ison, M., López, J. A.

The origin and dynamical evolution of isoscaling was studied using classical molecular dynamics simulations of ${}^{40}$Ca + ${}^{40}$Ca, ${}^{48}$Ca + ${}^{48}$Ca, and ${}^{52}$Ca + ${}^{52}$Ca, at...

Geometrical aspects of isoscaling (2005)

Dávila, A., Escudero, C., López, J. A., Dorso, C. O.

The property of isoscaling in nuclear fragmentation is studied using a simple bond percolation model with ``isospin'' added as an extra degree of freedom. It is shown analytically, first, that...

Dynamical study of spinodal decomposition in heavy ion collisions (2005)

Barrañón, A., López, J. A.

Nuclei undergo a phase transition in nuclear reactions according to a caloric curve determined by the amount of entropy. Here, the generation of entropy is studied in relation to the size of the...

Entropy and Size in HIC (2005)

Barrañón, A., López, J. A., Roa, J. Escamilla

Distinct entropy definitions have been used to obtain an inverse correlation between the residual size and entropy for Heavy Ion Collisions. This explains the existence of several temperatures for...

A HIC Primitive Spinodal Decomposition Signature (2005)

Barrañón, Armando, López, J. A.

Evidence of a primitive spinodal decomposition has been obtained for central Ni+Ni Heavy Ion Collision, since higher order charge correlations show a peak when four fragments of size equal to 6 are...

H 2-12, A Misidentified Planetary Nebula in Kepler SNR (2005)

López , J. A., Riesgo , Hortensia

Narrow-band direct images and long-slit, echelle spectra are presented for H 2¿12. This nebula has been classified as a true planetary nebula. However, the data presented here shows that this object...

The Global Kinematics of the Dumbbell Planetary Nebula (NGC 6853, M27, PN G060.8-03.6) (2005)

Boumis , P., Bryce , M., Christopoulou , P. E., Goudis , C. D., López , J. A., Meaburn , J.

Spatially resolved profiles of the He II 6560 A, H and [N II] 6548 and 6584 A nebular emission lines have been obtained in two orthogonal long cuts over the Dumbbell planetary nebula. The central He...

The transition temperature of the nuclear caloric curve (2004)

Barrañón,A., Escamilla Roa,J., López,J. A.

Experimental studies have obtained the caloric curve of nuclear matter from heavy ion collisions as well as its dependence on the size of the fragmenting source. In particular it has been determined...

The use of reverse transcription-PCR for the diagnosis of X-linked chronic granulomatous disease (2004)

Agudelo-Flórez,P., López,J.A., Redher,J., Costa-Carvalho,B.T., Grumach,A.S., ...

Chronic granulomatous disease (CGD) is an inherited disorder of the innate immune system characterized by a defective oxidative burst of phagocytes and subsequent impairment of their microbicidal...

Relaxation, Emission Modes and Limit Temperatures in Ni+Ni HIC (2004)

Barrañón, Armando, López, J. A., Dorso, C.

A dynamical stability analysis is performed for Ni+Ni central collision at intermediate energies, showing that in chemical, thermal and dynamical equilibriums are reached at an early stage of system...

Genetic Algorithms and Critical Phenomena (2003)

Barrañón, A., López, J. A., Dorso, C. O.

Genetic algorithms based on natural selection and minimal fluctuations have been applied to model physical and biological systems. Critical exponents have been extracted via computational simulations...

Critical Nucleation in Colossal Magnetoresistance (2003)

Barrañón, A., López, J. A., Dorso, C., Castillo, Fr. De L.

Critical exponents have been obtained for a 3D spin particle system. Clusters are formed and system reaches a critical behavior when fragment size distribution follows a power law, as predicted by...

Size Effects in Heavy Ions Fragmentation (2003)

Barrañón, A., López, J. A., Dorso, C. O.

Rise-Plateau Caloric curves for different Heavy Ion collisions have been obtained, in the range of experimental observations. Limit temperature decreases when the residual size is increased, in...

A primer for the San Pedro Mártir observatory (2003)

Gutiérrez , L., López , J. A.

The Observatorio Astronomico Nacional is run and operated by the Instituto de Astronoma of the National Autonomous University of Mexico. It is located in the northern part of Mexico, in the sierra...

Percolating Winds Through A Clumpy Torus (2003)

W. Steffen, J. A. López, Autónoma México

By way of axisymmetric numerical hydrodynamical simulations we study the interaction of a fast tenuous stellar wind with a thick toroidal distribution of high-density clouds embedded in a stationary...

Emission lines from Jets in planetary nebulae (2002)

López , J. A.

Emission line pro les from collimated high-velocity out ows or jets in planetary nebulae (PNe) have diverse characteristics that indicate the in uence of binary cores and magnetic con nement...

Fliers as stagnation knots in planetary nebulae (2002)

Lim , A. J., López , J. A., Steffen , W.

We present an alternative model for the formation of fast low-ionization emission regions (FLIERs) in planetary nebulae. The model is able to account for many of their attendant characteristics and...

Morphology and galactic distribution of PNe: a new scenario (2002)

Franco, J., García Segura, G., Langer, N., López, J. A., Rózyczka, M.

We review recent works on morphology and Galactic distribution of planetary nebulae (PNe), as well as recent advances in MHD modeling of PNe. We arrive at a tentative explanation for the connection...

Point-symmetry and the double planetary nebula kjpn 8 (2002)

Bryce, M., Franco, J., García Segura, G., López, J. A., Meaburn, J., Miranda, L. F., ...

We present recent results of two topical problems on dynamical evolution of Planetary Nebulae (PNe) where binary nuclei, stellar rotation and magnetic elds play relevant roles. Namely, point-symmetry...

The formation of collimated outflows and concentric rings in magnetized Planetary Nebulae (2002)

Franco, J., García Segura, G., Kurtz, S., López, J. A.

Magnetic elds and wind asymmetries from rotating stars, along with precession of the stellar rotation axis, can create most of the observed Planetary Nebulae morphologies and collimated out ows...

VLA observations at 7 mm of the planetary nebula ic 4997 (2002)

Gómez, Y., López, J. A., Miranda, L. F., Rodríguez, L. F., Torrelles, J. M.

We present high angular resolution (0.100) VLA observations at 7 mm wavelength towards the planetary nebula with bipolar morphology IC 4997. We detect a compact central structure possibly associated...

Stagnation knots in planetary nebulae (2002)

Lim, A. J., López, J. A., Steffen, W.

We present an alternative model for the formation of fast low-ionization emission regions (FLIERs) in planetary nebulae. In this model, a concave bow-shock structure is formed as a result of a...

Time Variation in the Radio Continuum Emission Associated with the Surroundings of the Nucleus of the Planetary Nebula KjPn 8 (2002)

Gómez , Y., López , J. A., Rodríguez , Luis F.

We present new, high sensitivity, Very Large Array (VLA) continuum observations of the core of KjPn 8 made with arcsecond angular resolution. These observations were compared with similar...

Fliers As Stagnation Knots In Planetary Nebulae (2002)

W. Steffen, J. A. López, A. J. Lim

We present an alternative model for the formation of fast low-ionization emission regions (FLIERs) in planetary nebulae. The model is able to account for many of their attendant characteristics and...

Morphology and Galactic Distribution of PNs: a New Scenario (2001)

García-Segura, G., Franco, J., López, J. A., Langer, N., Zyczka, M. Ró\.

We review recent studies on the morphology and distribution with respect to the galactic plane of planetary nebulae (PNs), as well as recent advances in MHD modeling of PNs. We discuss a tentative...

Theory and observations of a jet in the _ orionis region: HH 444 (2001)

López , J. A., López Martín, L., Meaburn , J., Raga , A. C.

The discovery of a system of Herbig{Haro objects ejected by young, low mass stars in the Orionis region (Reipurth et al. 1998) has given rise to models of the photoionization of a neutral jet by an...

Three Dimensional Magneto-Hydrodynamical Modeling of Planetary Nebuale ~ II: The Formation of Bipolar and Elliptical Nebulae with Point-Symmetric Structures and Collimated Outflows (2000)

García-Segura, G., López, J. A.

This work presents three dimensional, magneto-hydrodynamical simulations of the formation and early evolution of a subgroup of planetary nebulae that exhibit a variety of point-symmetric structures....

The theory of photoionized jets (2000)

López , J. A., López Martín, L., Meaburn , J., Raga , A. C.

In a previous paper we have discussed the photoionization of the beam of a Herbig-Haro (HH) jet which is immersed in an H II region. Here, we present further calculations of a photoionized HH jet...

Collimated outflows in planetary nebulae (2000)

López , J. A.

Our understanding of the formation of planetary nebulae (PNe) has been profoundly in uenced in recent years by the detection of high-velocity, collimated out ows in these objects. Out ows reaching...

Mhd models for pne (2000)

Franco , J., García Segura, G., Langer , N., López , J. A., Rózyczka , M.

A self-consistent scenario to explain the morphology of planetary nebulae is presented. This scenario is consistent with the Galactic distribution of di erent nebular types. This work addresses...

Observations of jets in H II regions (hh 444) (2000)

López , J. A., López Martín, L., Meaburn , J., Raga , A. C.

We present high resolution long-slit spectra of HH 444 and numerical simula- tions for this Herbig-Haro object. From the comparison between observations and simulations we are able to study the...

Influencia del procedimiento empleado para determinar la recta de economía de pedaleo en el cálculo del déficit máximo de oxígeno acumulado (1997)

Dorado, C., Chavarren Cabrero, Javier, López, J.A.

To assess the effect on the maximal oxygen deficit (MOD) of the intensity, the duration and the number of bouts utilized to calculate the submaximal VO2/intensity relationship, six males were tested...

Evaluación de centros de educación infantil : (ACEI, ACEI quantitativo, cuestionario para las familias) (1994)

Balaguer, I., Bassedas, M., Estela, A., Galán, M., Jubete, M., López, J.A., ...

Los documentos de la presente guía hacen referencia a la escuela infantil. Todos ellos tratan de la evaluación de estos centros, bajo diferentes perspectivas. Los instrumentos son: 1. Dos...

Location of a highly conserved neutralizing epitope in the F glycoprotein of human respiratory syncytial virus.

López, J A, Peñas, C, García-Barreno, B, Melero, J A, Portela, A

Trypsin digestion of the purified F protein from human respiratory syncytial virus (Long strain) generated a set of fragments in the amino-terminal third of the F1 subunit which contained the epitope...

Frame shift mutations as a novel mechanism for the generation of neutralization resistant mutants of human respiratory syncytial virus.

García-Barreno, B, Portela, A, Delgado, T, López, J A, Melero, J A

The genetic characterization of four previously reported mutants of human respiratory syncytial (RS) virus resistant to monoclonal antibody 63G is described. Sequences of the G protein genes were...

Location of a highly conserved neutralizing epitope in the F glycoprotein of human respiratory syncytial virus.

López, J A, Peñas, C, García-Barreno, B, Melero, J A, Portela, A

Trypsin digestion of the purified F protein from human respiratory syncytial virus (Long strain) generated a set of fragments in the amino-terminal third of the F1 subunit which contained the epitope...

Frame shift mutations as a novel mechanism for the generation of neutralization resistant mutants of human respiratory syncytial virus.

García-Barreno, B, Portela, A, Delgado, T, López, J A, Melero, J A

The genetic characterization of four previously reported mutants of human respiratory syncytial (RS) virus resistant to monoclonal antibody 63G is described. Sequences of the G protein genes were...

Numerical and functional defects of blood dendritic cells in early- and late-stage breast cancer

Pinzon-Charry, A, Ho, C S K, Maxwell, T, McGuckin, M A, Schmidt, C, Furnival, C, ...

The generation of antitumour immunity depends on the nature of dendritic cell (DC)–tumour interactions. These have been studied mostly by using in vitro-derived DC which may not reflect the natural...