Results 41 to 50 of about 283 (180)

Variable Stars in Leo A: RR Lyrae Stars, Short-Period Cepheids, and Implications for Stellar Content

open access: yesThe Astronomical Journal, 2002
46 pages, 12 figures Accepted by ...
Dolphin, AE   +8 more
openaire   +3 more sources

Variable stars in nearby galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2002
5 pages; accepted for publication in Astronomy and ...
Antonello, E.   +4 more
openaire   +2 more sources

First detection of CO emission from Cepheid Variable stars

open access: yes, 2023
We present IRAM 30~m Telescope observations of the CO(1-0) and CO(2-1) emission lines in a sample of eight Cepheid variable stars. The CO(1-0) line is detected in four of the eight targets at a signal-to-noise of $>$3.5 confirming the presence of CO in Cepheid atmospheres.
Hamer, S. L., Ardern, S., Scowcroft, V.
openaire   +2 more sources

Long‐term outcomes following a 5‐year recurrence‐free interval in non‐muscle‐invasive bladder cancer

open access: yesBJU International, Volume 138, Issue 1, Page 125-132, July 2026.
Objective To describe the recurrence and progression trends of non‐muscle‐invasive bladder cancer (NMIBC) during a 14‐year period in Denmark between 2009 and 2022. Furthermore, to evaluate the risk of late recurrence with or without progression in patients who initially experience a 5‐year recurrence‐free interval (RFI).
Peter B. Hjort   +2 more
wiley   +1 more source

The Components of Cepheid Systems: The FN Vel System

open access: yesThe Astronomical Journal
Cepheid masses continue to be important tests of evolutionary tracks for intermediate-mass stars as well as important predictors of their future fate.
Nancy Remage Evans   +10 more
doaj   +1 more source

The MACHO Project LMC Variable Star Inventory: Classical Cepheids, AGB Variables, and the Nine Million Star Color-Magnitude Diagram [PDF]

open access: yesSymposium - International Astronomical Union, 1999
We measure the ratio of ~ 5M⊙ blue and red LMC supergiants (representative of classical Cepheids) using the MACHO Project's 9 million star color-magnitude diagram (9M CMD) of the LMC bar. We find b/r = 0.39, which favors the Z=0.008, 5M⊙ theoretical model of Schaerer et al. (1993) over that of Fagatto et al. (1994).
Alves, DR, Basu, A, Cook, KH, Welch, DL
openaire   +5 more sources

Characteristics and Risk Factors Associated With Hospitalization and Severe Disease in Patients Aged ≥ 60 Years With Human Metapneumovirus Infection Over Three Consecutive Seasons (2021–2024) in Valladolid, Spain. The VALLAVIRUS Study

open access: yesInfluenza and Other Respiratory Viruses, Volume 20, Issue 7, July 2026.
ABSTRACT Background Human metapneumovirus (hMPV) is a respiratory pathogen often underestimated in the elderly. Although studies suggest it causes around 10% of respiratory hospitalizations in the United States, national and local data remain scarce.
Iván Sanz‐Muñoz   +13 more
wiley   +1 more source

Chicago–Carnegie Hubble Program: A Multiwavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. II. Theoretical Models and Synthetic Spectra

open access: yesThe Astrophysical Journal
This is the second of two papers exploring the effects of metallicity on the multiwavelength properties of Cepheids in terms of their multiwavelength period–luminosity (PL) relations, impacting their use as extragalactic distance indicators and ...
Barry F. Madore   +2 more
doaj   +1 more source

Bayesian Evaluation of Treatment Effect of Avelumab Plus Axitinib for Advanced Renal Cell Carcinoma

open access: yesCancer Medicine, Volume 15, Issue 6, June 2026.
ABSTRACT Background Despite not achieving statistical significance, the JAVELIN Renal 101 trial indicated a potentially clinically relevant effect size (hazard ratio [HR], 0.88; 95% confidence interval, 0.75 to 1.04) on overall survival (OS) favoring avelumab plus axitinib over sunitinib for advanced renal cell carcinoma (aRCC).
Wataru Fukuokaya   +9 more
wiley   +1 more source

First Detection of Radio Emission Associated with a Classical Cepheid

open access: yesThe Astronomical Journal, 2023
We report the detection of 15 GHz radio continuum emission associated with the classical Cepheid variable star δ Cephei ( δ Cep) based on observations with the Karl G. Jansky Very Large Array.
L. D. Matthews, N. R. Evans, M. P. Rupen
doaj   +1 more source

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