High-resolution optical spectra of the ultra-luminous X-ray source (ULX) NGC 5408 X-1 show a broad component with a width of ~750 km s-1 in the He II and Hβ...
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PublicaciónBroad Components in Optical Emission Lines from the Ultra-luminous X-ray Source NGC 5408 X-1
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PublicaciónBroad-band spectral energy distribution of the X-ray transient Swift J1745-26 from outburst to quiescence
Aims: We aim to analyse our study of the X-ray transient Swift J1745-26, using observations obtained from its outburst in September 2012, up to its decay...
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PublicaciónChandra and RXTE spectroscopy of the Galactic microquasar XTE J1550-564 in outburst
On two occasions, we obtained nearly simultaneous ~=4 ks snapshot observations of the Galactic black hole and microquasar XTE J1550-564 with Chandra and RXTE...
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PublicaciónChemical Abundances in the Secondary Star in the Black Hole Binary A0620-00
Using a high-resolution spectrum of the secondary star in the black hole binary A0620-00, we have derived the stellar parameters and veiling caused by the...
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PublicaciónChemical Abundances of the Secondary Star in the Black Hole X-Ray Binary V404 Cygni
We present a chemical abundance analysis of the secondary star in the black hole binary V404 Cygni, using Keck I/High Resolution Spectrometer. We adopt a χ2...
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PublicaciónChemical Abundances of the Secondary Star in the Black Hole X-Ray Binary XTE J1118+480
Following recent abundance measurements of Mg, Al, Ca, Fe, and Ni in the black hole X-ray binary XTE J1118+480 using medium-resolution Keck II ESI spectra of...
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PublicaciónCompact Optical Counterparts of Ultraluminous X-Ray Sources
Using archival Hubble Space Telescope (HST) imaging data, we report the multiband photometric properties of 13 ultraluminous X-ray sources (ULXs) that have a...
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PublicaciónCross-correlation of SDSS DR7 Quasars and DR10 BOSS Galaxies: The Weak Luminosity Dependence of Quasar Clustering at z ~ 0.5
We present the measurement of the two-point cross-correlation function (CCF) of 8198 Sloan Digital Sky Survey Data Release 7 quasars and 349,608 Data Release 10...
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PublicaciónDelimiting the black hole mass in the X-ray transient MAXI J1659-152 with Hα spectroscopy
MAXI J1659-152 is a 2.4 h orbital period X-ray dipping transient black hole candidate. We present spectroscopy of its I ≍ 23 quiescent counterpart, where we...