Hoyer, Sergio, Alegria, Sebastian Ramirez, Ivanov, Valentin D., Minniti, Dante, Pietrzynski, Grzegorz, Ruiz, Maria Teresa, ...
We present precise new V, I, and K-band photometry for the planetary transit candidate star OGLE-TR-82. Good seeing V-band images acquired with VIMOS instrument at ESO VLT allowed us to measure...
Pont, Frederic, Moutou, Claire, Gillon, Michael, Udalski, Andrzej, Bouchy, Francois, Fernandes, Joao, ...
Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new...
Pont, Frederic, Moutou, Claire, Gillon, Michael, Udalski, Andrzej, Bouchy, Francois, Fernandes, Joao, ...
Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new...
Millimagnitude Optical Photometry for the Transiting Planetary Candidate OGLE-TR-109 (2006)
Fernandez, Jose Miguel, Minniti, Dante, Pietrzynski, Grzegorz, Gieren, Wolfgang, Ruiz, Maria Teresa, Zoccali, Manuela, ...
We present precise V-band photometry for the low-amplitude transit candidate star OGLE-TR-109. This is an extreme case among the transiting candidates found by the OGLE group because of the early...
Optical and near-infrared observations of the peculiar Type la supernova 1999ac (2006)
Phillips, Mark M., Krisciunas, Kevin, Suntzeff, Nicholas B., Abraham, R. G., Beckett, M. G., Bonati, Marco, ...
We present 39 nights of optical photometry, 34 nights of IR photometry, and 4 nights of optical spectroscopy of the Type la supernova 1999ac. This supernova was discovered 2 weeks before maximum...
Optical and near-infrared observations of the peculiar Type la supernova 1999ac (2006)
Phillips, Mark M., Krisciunas, Kevin, Suntzeff, Nicholas B., Abraham, R. G., Beckett, M. G., Bonati, Marco, ...
We present 39 nights of optical photometry, 34 nights of IR photometry, and 4 nights of optical spectroscopy of the Type la supernova 1999ac. This supernova was discovered 2 weeks before maximum...
Chemical Composition of Two H II Regions in NGC 6822 Based on VLT Spectroscopy (2005)
Peimbert, Antonio, Peimbert, Manuel, Ruiz, Maria Teresa
We present long slit spectrophotometry of regions V and X of the local group irregular galaxy NGC 6822. The data consist of VLT FORS observations in the 3450 to 7500 A range. We have obtained...
On the Interpretation of High Velocity White Dwarfs as Members of the Galactic Halo (2005)
Bergeron, P., Ruiz, Maria Teresa, Hamuy, M., Leggett, S. K., Currie, M. J., ...
A detailed analysis of 32 of the 38 halo white dwarf candidates identified by Oppenheimer et al. is presented, based on model atmosphere fits to observed energy distributions built from optical BVRI...
A transiting extrasolar giant planet around the star OGLE-TR-113 (2004)
Konacki, Maciej, Torres, Guillermo, Sasselov, Dimitar D., Pietrzynski, Grzegorz, Udalski, Andrzej, Jha, Saurabh, ...
We report the independent discovery of a new extrasolar transiting planet around OGLE-TR-113, a candidate star from the Optical Gravitational Lensing Experiment. Small radial-velocity variations have...
Using Optical and Near-IR Photometry to Test MACHO Lens Candidates (2003)
Von Hippel, Ted, Sarajedini, Ata, Ruiz, Maria Teresa
We obtained new VLT/ISAAC H-band observations for five MACHO LMC source stars and adjacent LMC field regions. After combining our near-IR photometry with HST/PC BVRI optical photometry, we compared...
Seven problems related to the determination of the primordial helium abundance (2002)
Peimbert, Manuel, Peimbert, Antonio, Luridiana, Valentina, Ruiz, Maria Teresa
Recent advances on the quest to determine the primordial or pregalactic helium abundance, Yp, are reviewed. There are seven problems affecting the He/H abundance determinations of H II regions that...
CE-315 : A New Interacting Double-degenerate Binary Star (2001)
Ruiz, Maria Teresa, Rojo, Patricio M., Garay, Guido, Maza, Jose
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...
The widening social class gap of preventive health behaviours in Spain (2001)
ALVAREZ-DARDET, CARLOS, MONTAHUD, CRISTINA, RUIZ, MARIA TERESA
As a way of forecasting future evolution of inequalities in disease burden and mortality, trends in preventive health behaviours by social class were examined. Using the Spanish National Hearth...
Bergeron, P., Leggett, S. K., Ruiz, Maria Teresa
A photometric and spectroscopic analysis of 152 cool white dwarf stars is presented. The discovery of 7 new DA white dwarfs, 2 new DQ white dwarfs, 1 new magnetic white dwarf, and 3 weak magnetic...
PMN J1838-3427: A new gravitationally lensed quasar (2000)
Winn, Joshua N., Hewitt, Jacqueline N., Schechter, Paul L., Dressler, Alan, Falco, E. E., Impey, C. D., ...
We report the discovery of a new double-image quasar that was found during a search for gravitational lenses in the southern sky. Radio source PMN J1838-3427 is composed of two flat-spectrum...
Peimbert, Manuel, Peimbert, Antonio, Ruiz, Maria Teresa
Spectrophotometry in the 3400-7400 range is presented for 13 areas of the brightest H II region in the SMC: NGC 346. The observations were obtained at CTIO with the 4-m telescope. Based on these...
CTQ 839: Candidate for the Smallest Projected Separation Binary Quasar (2000)
Morgan, Nicholas D., Burley, Greg, Costa, Edgardo, Maza, Jose, Persson, S. E., Ruiz, Maria Teresa, ...
We report the discovery of the new double quasar CTQ 839. This B = 18.3, radio quiet quasar pair is separated by 2.1" in BRIH filters with magnitude differences of delta m_B = 2.5, delta m_R = delta...
HIGHER INCIDENCE OF CARPAL TUNNEL SYNDROME IN OOPHORECTOMIZED WOMEN (1991)
PASCUAL, E., GINER, V., ARÓSTEGUI, ANA, CONILL, J., RUIZ, MARIA TERESA, PICÓ, A.
To determine whether the hormonal changes of the menopause are related to the onset of carpal tunnel syndrome (CTS), 53 healthy women, younger than 44 years, and subjected to bilateral oophorectomy...
Effect of democracy on health: ecological study
Franco, Álvaro, Álvarez-Dardet, Carlos, Ruiz, Maria Teresa
Can political regimes be singled out as a factor affecting health? Rating countries by the extent of their freedom is a useful proxy for measuring the effects of democracy on health related variables
Effect of democracy on health: ecological study
Franco, Álvaro, Álvarez-Dardet, Carlos, Ruiz, Maria Teresa
Can political regimes be singled out as a factor affecting health? Rating countries by the extent of their freedom is a useful proxy for measuring the effects of democracy on health related variables
Knowledge gaps in scientific literature on maternal mortality: a systematic review.
Gil-González, Diana, Carrasco-Portiño, Mercedes, Ruiz, Maria Teresa
Issues related to maternal mortality have generated a lot of empirical and theoretical information. However, despite the amount of work published on the topic, maternal mortality continues to occur...