Search Results - "Costero, R"

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    New radial velocity observations of AH Her: evidence for material outside the tidal radius by Echevarría, J, Hernández Santisteban, J V, Segura Montero, O, Ramírez, S H, Ruelas-Mayorga, A, Sánchez, L J, Michel, R, Costero, R, González-Buitrago, D H, Olivares, J

    “…ABSTRACT Spectroscopic observations of AH Herculis during a deep quiescent state are put forward. We found the object in a rare long minima, allowing us to…”
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    Journal Article
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    Doppler tomography and photometry of the cataclysmic variable 1RXS J064434.5+334451 by Santisteban, J V Hernandez, Echevarria, J, Michel, R, Costero, R

    “…We have obtained simultaneous photometric and spectroscopic observations of the cataclysmic variable 1RXS J064434.5+334451. We have calibrated the spectra for…”
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    High-dispersion absorption-line spectroscopy of AE Aqr by Echevarría, J., Smith, Robert Connon, Costero, R., Zharikov, S., Michel, R.

    “…High-dispersion time-resolved spectroscopy of the unique magnetic cataclysmic variable AE Aqr is presented. A radial velocity analysis of the absorption lines…”
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    Journal Article
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    G 112-29 (=NLTT 18149): A Very Wide Companion to GJ 282 AB with a Common Proper Motion, Common Parallax, Common Radial Velocity, and Common Age by Poveda, A, Allen, Christine, Costero, R, Echevarría, J, Hernández-Alcántara, A

    Published in The Astrophysical journal (20-11-2009)
    “…We have made a search for common proper motion (CPM) companions to the wide binaries in the solar vicinity. We found that the binary GJ 282AB has a very…”
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    Extensive Photometry of V1838 Aql during the 2013 Superoutburst by Echevarría, J, de Miguel, E, Santisteban, J. V. Hernández, Michel, R, Costero, R, Sánchez, L. J, Ruelas-Mayorga, A, Olivares, J, González-Buitrago, D, Jones, J. L, Oskanen, A, Goff, W, Ulowetz, J, Bolt, G, Sabo, R, Hambsch, F. -J, Slauson, D, Stein, W

    Published 2019
    “…We present an in-depth photometric study of the 2013 superoutburst of the recently discovered cataclysmic variable V1838 Aql and subsequent photometry near its…”
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    Journal Article
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    Diffracto-Astrometry Measurements: Accuracy of the Measuring Algorithm by Ruelas-Mayorga, A., Sánchez, L. J., Olivares, J., Allen, C., Poveda, A., Costero, R., Nigoche-Netro, A.

    “…We present a theoretical analysis of the measuring algorithm we use when applying the diffracto-astrometry technique toHubble Space TelescopeWide Field…”
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    Near-infrared and Strömgren photometry of the open clusters NGC 663, NGC 1502 and NGC 1893 by Tapia, M., Costero, R., Echevarría, J., Roth, M.

    “…Near-infrared JHK, and Strömgren uvby and H β photometry of the central parts of three open clusters, NGC 663, NGC 1502 and NGC 1893, are presented. The…”
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    Oxygen and helium abundances in Galactic H ii regions — II. Abundance gradients by Deharveng, L., Peña, M., Caplan, J., Costero, R.

    “…The absolute integrated fluxes that we obtained (Paper I) for 34 H ii regions, with Galactocentric distances RG in the 6.6–17.7 kpc range, in the emission…”
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    Multiplicity of the Orion Trapezium stars by Costero, R

    Published 27-06-2019
    “…Preliminary results on the ongoing spectroscopic study of the six brightest Orion Trapezium stars is presented here. The main purpose of this work is to better…”
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    Echelle-MEPSICRON time-resolved spectroscopy of the dwarf nova SS Cygni by Echevarría, J., Diego, F., Tapia, M., Costero, R., Ruiz, E., Salas, L., Gutiérrez, L., Enríquez, R.

    “…High-dispersion time-resolved spectroscopy of the dwarf nova SS Cygni was obtained during two consecutive days at the end of an outburst. The emission lines…”
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    Oxygen and helium abundances in Galactic H ii regions — I. Observations by Caplan, J., Deharveng, L., Peña, M., Costero, R., Blondel, C.

    “…Absolute integrated line fluxes of H ii regions have been measured using a Fabry—Perot spectrophotometer. We describe the observations and calibration…”
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