91 citations · 467 across the 20 of their papers we have counts for
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NSVS01031772: A New 0.50+0.54 Msun Detached Eclipsing Binary
Mercedes Lopez-Morales, Jerome A. Orosz, J. Scott Shaw +4
We report the discovery of a new detached eclipsing binary known as NSVS01031772 with component masses M_1= 0.5428 +/- 0.0027Msun, M_2= 0.4982 +/- 0.0025Msun, and radii R_1= 0.5260…
Limits to Transits of the Neptune-mass planet orbiting Gl 581
Mercedes Lopez-Morales, Nidia I. Morrell, R. Paul Butler +1
We have monitored the Neptune-mass exoplanet-hosting M-dwarf Gl 581 with the 1m Swope Telescope at Las Campanas Observatory over two predicted transit epochs. A neutral density fil…
Detection of a Variable Infrared Excess Around SDSS 121209.31+013627.7
J. H. Debes, M. Lopez-Morales, A. Z. Bonanos +1
We present near-infrared photometry and light curves of the candidate magnetic white dwarf+brown dwarf binary SDSS J121209.31+013627.7 and report on the detection of near-i…
Chemical Abundance Study of One Red Giant Star in NGC 5694 : A Globular Cluster with Dwarf Spheroidals' Chemical Signature?
Jae-Woo Lee, Mercedes Lopez-Morales, Bruce W. Carney
We report the abundance analysis of one red giant branch star in the metal-poor outer halo globular cluster NGC 5694. We obtain [Fe/H] = -1.93, based on the ionized lines, and our…
Very Cool Close Binaries
J. Scott Shaw, Mercedes Lopez-Morales
We present new observations of cool <6000K and low mass <1Msun binary systems that have been discovered by searching several modern stellar photometric databases. The search has le…
Millimag Precision Photometry of Southern Bright Stars with a 1-m Telescope and a Standard CCD
Mercedes Lopez-Morales
This paper summarizes a three night observing campaign aimed at achieving milli-magnitude precision photometry of bright stars (V < 9.0) with the 1-meter Swope telescope at Las Cam…