Results 41 to 50 of about 1,680 (177)
Discovery of the Longest-period Classical Cepheid in the Milky Way
The Astrophysical Journal LettersWe report the discovery of the classical Cepheid OGLE-GD-CEP-1884 (= GDS_J1535467-555656) with the longest pulsation period known in our Galaxy. The period of 78.14 days is nearly 10 days longer than that of the previous record-holding Cepheid, S ...
I. Soszyński +14 more
doaj +1 more source
Cepheid distances from the Baade–Wesselink method [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractRecent progress on Baade–Wesselink (BW)-type techniques to determine the distances to classical Cepheids is reviewed. Particular emphasis is placed on the near-infrared surface-brightness (IRSB) version of the BW method. Its most recent calibration is described and shown to be capable of yielding individual Cepheid distances accurate to 6 ...
Gieren, Wolfgang +7 more
openaire +2 more sources
Cepheid-based Distances to NGC 4303 and NGC 1068
The Astrophysical JournalWe present Cepheid-based distances to two canonical active galactic nuclei: NGC 4303 (M61) and NGC 1068. Data were obtained using the Hubble Space Telescope with nonredundant time spacing over 12 visits for each target, and observations were made with ...
Madison Markham +4 more
doaj +1 more source
A Cepheid Distance to the Fornax Cluster
, 1998 The Hubble Space Telescope is being used to measure accurate Cepheid distances to nearby galaxies with the ultimate aim of determining the Hubble constant, H_0. For the first time, it has become feasible to use Cepheid variables to derive a distance to a galaxy in the southern hemisphere cluster of Fornax.
Madore, B. F. +15 more
openaire +2 more sources
Cancer Medicine, Volume 15, Issue 3, March 2026.ABSTRACT Objective To investigate cardiovascular disease (CVD) mortality patterns among people with cancer in New South Wales (NSW) compared to the NSW general population and trends over time. Design Population‐wide retrospective data‐linkage study. Participants and Setting 873,344 people aged ≥ 40 diagnosed with primary invasive cancer and registered ...
Md Mijanur Rahman +9 more
wiley +1 more source
HipparcosParallaxes and the Cepheid Distance Scale [PDF]
The Astrophysical Journal, 1998 15 pages, 4 figures, Ap. J.
Madore, Barry F., Freedman, Wendy L.
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Health Science Reports, Volume 9, Issue 3, March 2026.ABSTRACT Background and Aim Cervical cancer is a major public health issue in Botswana, driven by high HIV prevalence and limited screening access. Molecular detection of high‐risk human papillomavirus (hrHPV) is crucial for prevention and early diagnosis.
Leabaneng Tawe
wiley +1 more source
RR Lyrae and Type II Cepheid Variables in Globular Clusters: Optical and Infrared Properties
Universe, 2022 Globular clusters are both primary fossils of galactic evolution and formation and are ideal laboratories for constraining the evolution of low-mass and metal-poor stars.
Anupam Bhardwaj
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THE CEPHEID DISTANCE TO NGC 0247
The Astrophysical Journal, 2009 We report VRI CCD observations of nine Cepheids in the South Polar (Sculptor) Group spiral galaxy NGC 0247. Periods of these Cepheids range from 20 to 70 days. Over the past 20 years, the brightest Cepheid in our sample, NGC 0247:[MF09] C1, has decreased its period by 6%, faded by 0.8 mag in the V band, and become bluer by 0.23 mag in (V–I).
Barry F. Madore +3 more
openaire +1 more source
Drug and Alcohol Review, Volume 45, Issue 3, March 2026.ABSTRACT Introduction Opioid agonist treatment (OAT) is one of the most effective treatments for opioid dependence, but there can be barriers to accessing treatment. This study examined characteristics associated with OAT engagement—never, previous or current—among people with opioid dependence in NSW, Australia, following recent reforms to OAT access.
Thomas Santo Jr +11 more
wiley +1 more source