Results 51 to 60 of about 577 (218)

First detection of CO emission from Cepheid Variable stars

, 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

Access to diagnosis using liquid biopsy (ADLiB): Identifying lymphoma in a tuberculosis‐endemic setting

HemaSphere, Volume 10, Issue 6, June 2026.
Abstract In HIV‐ and tuberculosis (TB)‐endemic regions, lymphoma diagnosis is often delayed because symptoms can overlap with TB, and access to biopsy and specialized pathology is limited. To address this, we developed and internally evaluated the Access to Diagnosis using Liquid Biopsy (ADLiB) platform—a plasma cell‐free DNA (cfDNA)‐based approach ...
Katherine Antel, Nina Xiong, Mwanasha Merrill, Taiyang Chen, Lauren McGrath, Clara Droessler, Maxine van der Schyff, Meng‐Xuan Wu, Dylan Cheddie, Charlotte Slome, Liam McBride, Jonathan Day, Zainab Mohamed, Nazia Fakie, Nomonde Mbatani, Charlotte Shultz, Graeme Meintjes, Svitlana Tyekucheva, Elizabeth F. Cohen, Michael Y. Tolstorukov, Estelle Verburgh, Mark A. Murakami   +21 more
wiley   +1 more source

The Components of Cepheid Systems: The FN Vel System

The 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, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Charles Proffitt, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye   +10 more
doaj   +1 more source

First Detection of Radio Emission Associated with a Classical Cepheid

The 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

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

Symposium - 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

Variable stars in the field of open cluster NGC 6819

, 2002
We report on the discovery of 25 variable stars plus 13 suspected variables found in the field of the open cluster NGC 6819. The stars were identified from time-series photometric data obtained on the Isaac Newton Telescope, La Palma, during two ...
Lister, TA, Street, R. A., Horne, Keith Douglas, Penny, A, Cooke, J, Cooke, J., Safizadeh, N., Mitchell, D, Safizadeh, N, Tsapras, Y., Cameron, Andrew Collier, Cameron, A. Collier, Tsapras, Y, Mitchell, David, Lister, T. A., Quirrenbach, A., Street, RA, Penny, A., Horne, Keith, Quirrenbach, A   +19 more
core   +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

The 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, Wendy L. Freedman, Kayla Owens   +2 more
doaj   +1 more source

Baseline Data on Viral Suppression, Treatment Adherence and Mental Health in Peripartum Girls and Young Women With HIV in Zimbabwe

Journal of the International AIDS Society, Volume 29, Issue S1, June 2026.
ABSTRACT Introduction Peripartum adolescent girls and young women (AGYW) with HIV have lower viral suppression compared to older women. But the recently introduced dolutegravir‐based regimens and psychosocial peer motivation may improve viral control.
Tariro D. Chawana‐Mutingwende, Bernard Ngara, Leon‐Say Mudadi, Thelma T. Tauya, Marvelous Sibanda, Mercy Mutambanengwe‐Jacob, Precious Andifasi, Bernadette Malunda, Tinashe Chidemo, Annie Mapfunde, Sandra Nyakudya, Anna Z. Mufumisi, Thandiwe H. Chirenda, Tobias Chitambo, Walter T. S. Nderecha, Constance Murandu, Miriam Gwande, Kudakwashe Muringayi, Rhoda Micah Bongo, Hideaki Okochi, Karen Kuncze, Angela Mushavi, Nicola Willis, Karen Webb, Monica Gandhi, Lynda Stranix‐Chibanda   +25 more
wiley   +1 more source

Convection in the interior of Cepheid variable stars

Visualization of vorticity magnitude of a 8 solar mass Cepheid variable star. This 2D simulation in a spherical shell has been performed with the MUltidimensional Stellar Implicit Code (MUSIC). The zero point in vorticity is in white.This poster won a Gallery of Fluid motion award at the APS/DFD 2025 conference.This work was performed under the ...
Stuck, Maxime, Pratt, Jane
openaire   +1 more source

Incidence of HIV and HCV Among People Who Inject Drugs in Montreal, Canada: Data From the HEPCO Longitudinal Cohort Study, 2011–2025

Journal of Viral Hepatitis, Volume 33, Issue 6, June 2026.
ABSTRACT Ongoing monitoring of hepatitis C virus (HCV) and HIV incidence among people who inject drugs (PWID) is important for epidemic control and assessing progress towards disease elimination. We estimated trends in HIV and HCV infection incidence in a community‐based cohort of PWID in Montreal, Canada.
Bluma Blake Kleiner, Milca Meconnen, Marleine Azar, Nanor Minoyan, Geng Zang, Adelina Artenie, Valérie Martel‐Laferrière, Didier Jutras‐Aswad, Julie Bruneau, Sarah Larney   +9 more
wiley   +1 more source