Results 31 to 40 of about 1,231 (80)

On the Form of the Spitzer Leavitt Law and its Dependence on Metallicity [PDF]

, 2013
The form and metallicity-dependence of Spitzer mid-infrared Cepheid relations are a source of debate. Consequently, Spitzer 3.6 and 4.5 um period-magnitude and period-color diagrams were re-examined via robust routines, thus providing the reader an ...
Gieren, W., Majaess, D., Turner, D. G.
core   +2 more sources

Trends in toxicological findings in unintentional opioid or stimulant toxicity deaths in Québec, Canada, 2012–2021: Has Québec entered a new era of drug‐related deaths?

Drug and Alcohol Review, Volume 43, Issue 6, Page 1613-1624, September 2024.
Abstract Introduction We aimed to describe rates and toxicological findings of unintentional opioid and stimulant toxicity deaths, 2012–2021. Methods The dataset included accidental deaths determined by the Coroner to be due to opioids or stimulants.
Uyen Do, Paul‐André Perron, Julie Bruneau, Sarah Larney   +3 more
wiley   +1 more source

Point‐Of‐Care Ultra‐Portable Single‐Molecule Bioassays for One‐Health

Advanced Materials, Volume 36, Issue 13, March 28, 2024.
CRISPR lateral‐flow‐strip tests, combined with enzymatic amplification, and the SiMoT bioelectronic palmar devices, review as highly performing point‐of‐care testing technologies that have reached technology readiness level 5, are capable of single‐molecule detections (10−20 m in 0.1 mL) and exhibit extremely high reliability (diagnostic sensitivity ...
Eleonora Macchia, Fabrizio Torricelli, Mariapia Caputo, Lucia Sarcina, Cecilia Scandurra, Paolo Bollella, Michele Catacchio, Matteo Piscitelli, Cinzia Di Franco, Gaetano Scamarcio, Luisa Torsi   +10 more
wiley   +1 more source

TYC 1031 1262 1: An Anomalous Cepheid in a double-lined eclipsing binary

, 2012
Multi-color light curves and radial velocities for TYC\,1031\,1262\,1 have been obtained and analyzed. TYC\,1031\,1262\,1 includes a Cepheid with a period of 4.15270$\pm$0.00061 days. The orbital period of the system is about 51.2857$\pm$0.0174 days. The
Cakirli, O., Evren, S., Ibanoglu, C., Sipahi, E.   +3 more
core   +1 more source

The stellar content of the Local Group dwarf galaxy Phoenix [PDF]

, 1999
We present new deep $VI$ ground-based photometry of the Local Group dwarf galaxy Phoenix. Our results confirm that this galaxy is mainly dominated by red stars, with some blue plume stars indicating recent (100 Myr old) star formation in the central part
Aparicio, A., Gallart, C., Martinez-Delgado, D.   +2 more
core   +2 more sources

On the central helium-burning variable stars of the LeoI dwarf spheroidal galaxy

, 2012
We present a study of short period, central helium-burning variable stars in the Local Group dwarf spheroidal galaxy LeoI, including 106 RR Lyrae stars and 51 Cepheids.
Bernard, E. J., Bono, G., Fiorentino, G., Monelli, M., Pietrinferni, A., Stetson, P. B.   +5 more
core   +1 more source

Photometry of Variable Stars from THU-NAOC Transient Survey I: The First 2 Years [PDF]

, 2015
In this paper, we report the detections of stellar variabilities from the first 2-year observations of sky area of about 1300 square degrees from the Tsinghua University-NAOC Transient Survey (TNTS). A total of 1237 variable stars (including 299 new ones)
Chen, Juncheng, Jin, Zhiping, Li, Wenxiong, Mo, Jun, Nie, JunDan, Wang, Lingzhi, Wang, Xiaofeng, Wu, Xuefeng, Yao, Xinyu, Yuan, Wenlong, Zhang, Tianmeng, Zhou, Xu   +11 more
core   +2 more sources

Asteroseismology, standard candles and the Hubble Constant: what is the role of asteroseismology in the era of precision cosmology?

, 2013
Classical Cepheids form one of the foundations of modern cosmology and the extragalactic distance scale, however, cosmic microwave background observations measure cosmological parameters and indirectly the Hubble Constant, H0, to unparalleled precision ...
Biesiada, Marek, Evans, Nancy Remage, Marconi, Marcella, Neilson, Hilding R., Ngeow, Chow-Choong, Reese, Daniel R.   +5 more
core   +1 more source

The VMC survey - VIII : First results for anomalous Cepheids [PDF]

, 2013
The VISTA near-infrared YJKs survey of the Magellanic Clouds System (VMC, PI M.-R. L. Cioni) is collecting deep Ks-band time-series photometry of the pulsating variable stars hosted in the system formed by the two Magellanic Clouds and the Bridge ...
Bekki, Bersier, Bersier, Bessell, Brocato, Buonanno, Caputo, Caputo, Caputo, Carpenter, Cioni, Clementini, Clementini, Cross, Dalton, de Grijs, Emerson, Emerson, Fiorentino, For, Freedman, G. Clementini, Gallart, Greco, Greco, Gullieuszik, Harris, Harris, Haschke, Held, Hidalgo, Holtzman, Irwin, Irwin, J. M. Oliveira, J. P. Emerson, Lindegren, Lindegren, M. A. T. Groenewegen, M. I. Moretti, M. Marconi, M.-R. L. Cioni, Madore, Madore, Marconi, Marconi, Martínez-Delgado, Matteucci, Menzies, Moretti, Muller, Neilson, Pietrzyński, Pietrzyński, Pietrzyński, Pritzl, Putman, R. de Grijs, Riess, Ripepi, Ripepi, Rizzi, Soszyński, Soszyński, Stanimirović, V. D. Ivanov, V. Ripepi, van der Marel, Venzmer, Walker, Weisz   +70 more
core   +4 more sources

The Dwarf Spheroidal Companions to M31: Variable Stars in Andromeda VI

, 2002
We have surveyed Andromeda VI, a dwarf spheroidal galaxy companion to M31, for variable stars using F450W and F555W observations obtained with the Hubble Space Telescope. A total of 118 variables were found, with 111 being RR Lyrae, 6 anomalous Cepheids,
Bailey S. I., Barton J. Pritzl, Castellani V., Gary S. Da Costa, George H. Jacoby, Kaluzny J., Kopacki G., Oosterhoff P. Th., Reid N., Renzini A., Renzini A., Taft E. Armandroff, Zinn R.   +12 more
core   +2 more sources