Publicación
Ultracool dwarfs in the Kepler field
Ultracool dwarfs with spectral type M7 and later include very low-mass stars as well as brown dwarfs. Due to their intrinsic faintness, only 9 very low-mass...
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PublicaciónUltracool Dwarfs in the Ukirt Infrared Deep Sky Survey (UKIDSS)The UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS) presents an unparallelled resource for the study of field brown dwarfs. The UKIDSS Cool...
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PublicaciónUltracool Subdwarfs: The Halo Population Down to the Substellar LimitUltracool subdwarfs are low luminosity, late-type M and L dwarfs that exhibit spectroscopic indications of subsolar metallicity and halo kinematics. Their...
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PublicaciónUltraluminous X-ray Sources: Beambags and Optical CounterpartsA significant fraction of ultraluminous X-ray sources appear to be embedded in observable ionized nebulæ that take the form of large, several 100 pc diameter...
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PublicaciónUltraluminous X-ray Sources: Bubbles and Optical CounterpartsOptical studies of ultraluminous X-ray sources (ULX) in nearby galaxies have turned out to be instrumental in discriminating between various models including...
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PublicaciónUltrastable operation of detectors for high-resolution spectrographsHigh resolution spectroscopy demands detector operation in an extremely stable mechanical and thermal environment; any tiny perturbation may affect the location...
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PublicaciónUltraviolet emission line imaging of planetary nebulae with GALEXGALEX (the Galaxy Evolution Explorer) has provided far-UV(1344-1786Å) and near-UV(1771-2831Å) imaging of several Planetary Nebulae (e.g., Bianchi et al. 2008...
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PublicaciónUltraviolet Emission Lines of T Tauri StarsNot Available
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PublicaciónUltraviolet interstellar lines towards nearby fast rotators Zn II distribution and MG II/Mg I ratiosThe column density distribution of the local interstellar medium (LISM) towards a sample of 15 fast rotators observed with IUE at high resolution is reported...