459 citations · 2.5k across the 50 of their papers we have counts for
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New deep XMM-Newton observations to the west of the sigma Orionis cluster
J. Lopez-Santiago, J. A. Caballero
Aims: The objective of this study is to determine the general X-ray properties of the young stars in the external regions of the sigma Orionis cluster (tau ~ 3 Ma, d ~ 385 pc) and…
The stellar content of the XMM-Newton Bright Serendipitous Survey
J. Lopez-Santiago, G. Micela, S. Sciortino +5
Context: The comparison of observed counts in a given sky direction with predictions by Galactic models yields constraints to the spatial distribution and the stellar birthrate of…
Analysis and modeling of high temporal resolution spectroscopic observations of flares on AD Leo
I. Crespo-Chacon, D. Montes, D. Garcia-Alvarez +3
We report the results of a high temporal resolution spectroscopic monitoring of the flare star AD Leo. During 4 nights, more than 600 spectra were taken in the optical range using…
The nearest young moving groups
J. Lopez-Santiago, D. Montes, I. Crespo-Chacon +1
The latest results in the research of forming planetary systems have led several authors to compile a sample of candidates for searching for planets in the vicinity of the sun. You…
Rotational modulation of the photospheric and chromospheric activity in the young, single K2-dwarf PW And
J. Lopez-Santiago, D. Montes, M. J. Fernandez-Figueroa +1
High resolution echelle spectra of PW And (HD~1405) have been taken during eight observing runs from 1999 to 2002. The detailed analysis of the spectra allow us to determine its sp…
Chromospheric activity, lithium and radial velocities of single late-type stars possible members of young moving groups
D. Montes, J. Lopez-Santiago, Fernandez-Figueroa +1
We present here high resolution echelle spectra taken during three observing runs of 14 single late-type stars identified in our previous studies (Montes et al. 2001b, hereafter Pa…
Late-type stars members of young stellar kinematic groups - I. Single stars
D. Montes, J. Lopez-Santiago, M. C. Galvez +3
This is the first paper of a series aimed at studying the properties of late-type stars members of young stellar kinematic groups. We concentrate our study on classical young movin…