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Your search keyword '"C. Muena"' showing total 4 results
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4 results on '"C. Muena"'

1. The Type I[CLC]a[/CLC] Supernova 1999[CLC]aw[/CLC]: A Probable 1999[CLC]aa[/CLC]-like Event in a Low-Luminosity Host Galaxy

Author

L.-G. Strolger, R. C. Smith, N. B. Suntzeff, M. M. Phillips, G. Aldering, P. Nugent, R. Knop, S. Perlmutter, R. A. Schommer, L. C. Ho, M. Hamuy, K. Krisciunas, L. M. Germany, R. Covarrubias, P. Candia, A. Athey, G. Blanc, A. Bonacic, T. Bowers, A. Conley, T. Dahlén, W. Freedman, G. Galaz, E. Gates, G. Goldhaber, A. Goobar, D. Groom, I. M. Hook, R. Marzke, M. Mateo, P. McCarthy, J. Méndez, C. Muena, S. E. Persson, R. Quimby, M. Roth, P. Ruiz-Lapuente, J. Seguel, A. Szentgyorgyi, K. von Braun, W. M. Wood-Vasey, and T. York

Subjects
Physics, Astrophysics::High Energy Astrophysical Phenomena, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Type (model theory), Light curve, Galaxy, Luminosity, law.invention, Telescope, Supernova, Space and Planetary Science, law, Observatory, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Event (particle physics), Astrophysics::Galaxy Astrophysics
Abstract

SN 1999aw was discovered during the first campaign of the Nearby Galaxies Supernova Search (NGSS) project. This luminous, slow-declining (Delta m_{15} (B) = 0.81 \pm 0.03) Type Ia supernova was noteworthy in at least two respects. First, it occurred in an extremely low luminosity host galaxy that was not visible in the template images, nor in initial subsequent deep imaging. Secondly, the photometric and spectral properties of this supernova indicate that it very likely was similar to the subclass of Type Ia supernovae whose prototype is SN 1999aa. This paper presents the BVRI and J_{s} HK_{s} lightcurves of SN 1999aw (through 100 days past maximum light), as well as several epochs of optical spectra. From these data we calculate the bolometric light curve, and give estimates of the luminosity at maximum light and the initial ^{56}Ni mass. In addition, we present deep BVI images obtained recently with the Baade 6.5-meter telescope at Las Campanas Observatory which reveal the remarkably low-luminosity host galaxy.

Published
2002
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2. BVRI Light Curves for 29 Type Ia Supernovae

Author

M. Hamuy, M. M. Phillips, N. B. Suntzeff, R. A. Schommer, J. Maza, A. R. Antezan, M. Wischnjewsky, G. Valladares, C. Muena, L. E. Gonzales, R. Aviles, L. A. Wells, R. C. Smith, M. Navarrete, R. Covarrubias, G. M. Williger, A. R. Walker, A. C. Layden, J. H. Elias, J. A. Baldwin, M. Hernandez, H. Tirado, P. Ugarte, R. Elston, N. Saavedra, F. Barrientos, E. Costa, P. Lira, M. T. Ruiz, C. Anguita, X. Gomez, P. Ortiz, M. della Valle, J. Danziger, J. Storm, Y.-C. Kim, C. Bailyn, E. P. Rubenstein, D. Tucker, S. Cersosimo, R. A. Mendez, L. Siciliano, W. Sherry, B. Chaboyer, R. A. Koopmann, D. Geisler, A. Sarajedini, A. Dey, N. Tyson, R. M. Rich, R. Gal, R. Lamontagne, N. Caldwell, P. Guhathakurta, A. C. Phillips, P. Szkody, C. Prosser, L. C. Ho, R. McMahan, G. Baggley, K.-P. Cheng, R. Havlen, K. Wakamatsu, K. Janes, M. Malkan, F. Baganoff, P. Seitzer, M. Shara, C. Sturch, J. Hesser, A. N. P. Hartig, J. Hughes, D. Welch, T. B. Williams, H. Ferguson, P. J. Francis, L. French, M. Bolte, J. Roth, S. Odewahn, S. Howell, and W. Krzeminski

Subjects
Physics, 010308 nuclear & particles physics, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Light curve, 01 natural sciences, Rate parameter, Supernova, Space and Planetary Science, 0103 physical sciences, Supernova Legacy Survey, 010303 astronomy & astrophysics
Abstract

BVRI light curves are presented for 27 Type Ia supernovae discovered during the course of the Calan/Tololo Survey and for two other SNe Ia observed during the same period. Estimates of the maximum light magnitudes in the B, V, and I bands and the initial decline rate parameter m15(B) are also given., 17 pages, figures and tables are not included (contact first author if needed), to appear in the Astronomical Journal

Published
1996

3. [Considerations in the transgender population regarding HIV infection, antiretroviral therapy, pre-exposure prophylaxis (PreP) and interaction with gender reaffirmation treatment].

Author

Zapata-Pizarro A, Muena-Bugueño C, Quiroz-Nilo S, Serri-Venegas M, and Usedo-López P

Subjects
Anti-Retroviral Agents therapeutic use, Humans, Sex Work, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, HIV Infections epidemiology, HIV Infections prevention & control, Pre-Exposure Prophylaxis, Transgender Persons
Abstract

HIV infection is a global epidemic, with a prevalence of 0.8%. In Latin America, Chile, Brazil and Uruguay are the countries with the highest rates. The transgender population is the most affected (OR of 48.8 compared to the general population). Multiple bio-psycho-social factors explain these issues. The low use of condoms for pressure from the partner, the idea of reaffirmation of gender, the fear to be replaced by a cisgender person, the presence of commercial sex, among others, influence the highest rates of infection. HIV prevention measures have been implemented, but few specifically targeted at transgender people. Pre-exposure prophylaxis (PreP) seems to be a new prevention alternative in this group, and the integration of support units in gender reaffirmation with units that deliver PreP could increase their adherence and coverage. In HIV (+) transgender people there is low adherence to antiretroviral therapy (ART), in part due to the prioritization of hormonal treatment and the fear that ART will alter their hormonalization process. The few data that exist show that hormonalization is not affected by ART, but that some hormonal treatments could lower the levels of certain antiretrovirals. More studies must be done to evaluate the interaction between antiretrovirals and gender affirming hormone therapy.

Published
2022
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