Browsing by Author "Maza Sancho, José"
Now showing items 1-20 of 81
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(AMER INST PHYSICS, 1993-12)We have started a search for supernovae as a collaboration between the University of Chile and the Cerro Tololo Inter-American Observatory, with the aim of producing a moderately distant (0.01 < z < 0.10) sample of Type ...
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(AMER INST PHYSICS, 1996-12)We examine the absolute luminosities of 29 SNe Ia in the Calan/Tololo survey. We confirm a relation between the peak luminosity of the SNe and the decline rate as measured by the light curve, as suggested by Phillips [ApJ, ...
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(EDP Sciences, 2003-03)We present K-band imaging observations of ten gamma-ray burst (GRB) host galaxies for which an optical and/or radio afterglow associated with the GRB event was clearly identified. Data were obtained with the Very Large ...
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(NATURE PUBLISHING GROUP, 2003-08-07)Stars that explode as supernovae come in two main classes. A type Ia supernova is recognized by the absence of hydrogen and the presence of elements such as silicon and sulphur in its spectrum; this class of supernova is ...
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(2005-10-01)We report stellar velocity dispersion measurements for a sample of 28 active galactic nucleus (AGN) host galaxies, including our previous work. Using the mass-dispersion (M.- ) and the fundamental plane relations, ...
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(IOP PUBLISHING, 2005-03-01)We present the first results from the Calan-Yale Deep Extragalactic Research (CYDER) survey. The main goal of this survey is to study serendipitous X-ray sources detected by Chandra in an intermediate flux range (10(-15) ...
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(UNIV CHICAGO PRESS, 2006-01)Supernovae are essential to understanding the chemical evolution of the universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the universe ...
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(BLACKWELL PUBLISHING LTD, 2004-10-21)In a search for cataclysmic variables in the Calan-Tololo Survey, we have detected 21 systems, 16 of them previously unknown. In this paper we present detailed time-series photometry for those six confirmed cataclysmic ...
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(WILEY-BLACKWELL, 2010-06-11)In this second paper on cataclysmic variables detected in the Cal´an–Tololo Survey we present time-resolved spectroscopy for the remaining eight systems without a measured orbital period. We derive orbital periods for ...
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(UNIV CHICAGO PRESS, 2001-05-10)We present spectroscopic observations of object CE 315 revealing a blue continuum with strong emission lines. Most of the detected lines are identified with He I or He II in emission, with a handful of faint lines of ...
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(The American Astronomical Society, 2000-06)In the course of a Cycle 8 snapshot imaging survey with the Space Telescope Imaging Spectrograph (STIS), we have discovered that the z\1.565 quasar HE 0512[3329 is a double with image separation 0A.644, di ering in ...
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(UNIV CHICAGO PRESS, 2007-01-01)We study the clustering properties of K-selected galaxies at 2 < z < 3:5 using deep multiwavelength imaging in three fields from the MUSYC survey. These are the first measurements to probe the spatial correlation function ...
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(2003-08)We present the second gravitationally lensed quasar discovered during the course of a Hubble Space Telescope Space Telescope Imaging Spectrograph snapshot survey for small-separation gravitational lenses. CTQ 327 is a ...
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(1999-10)We report the discovery and ground-based observations of the new gravitational lens CTQ 414. The source quasar lies at a redshift of z\1.29 with a B magnitude of 17.6. Ground-based optical imaging reveals two point sources ...
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(2000-03)We report the discovery of the new double quasar CTQ 839. This B\18.3, radio-quiet quasar pair is separated by 2A.1 in BRI and H Ðlters, with magnitude di erences of *mB\2.5, *mR\*mI\1.9, and *mH\2.3. Spectral observations ...
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(UNIV CHICAGO PRESS, 2006-12-01)We present the CXOCY J220132.8-320144 system, which is composed of an edge-on spiral galaxy at z = 0.32 lensing a z = 3.9 background quasar. Two images of the quasar are seen. The geometry of the system is favorable to ...
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(2003)We present the Cal´an-Yale Deep Extragalactic Research (CYDER) Survey. The broad goals of the survey are the study of stellar populations, the star formation history of the universe and the formation and evolution of ...
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(EDP SCIENCES S A., 2003-10)We analyze the kinematics of the central regions of five isolated Seyfert spiral galaxies from the DEGAS sample (four with new data presented in this paper, IC 184, UGC 3223, NGC 2639, NGC 6814, and NGC 6951 from our ...
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(2001-09-10)We present optical and infrared spectroscopy of the first 2 months of evolution of the Type II supernova SN 1999em. We combine these data with high-quality optical/infrared photometry beginning only 3 days after shock ...
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(UNIV CHICAGO PRESS, 1994-09-01)We have used observations gathered at CTIO to measure distances by the expanding photosphere method (EPM) to five Type II supernovae. These supernovae lie at redshifts from cz = 1100 km s-1 to cz - 5500 km s-1, and increase ...
