Results 71 to 80 of about 8,434 (230)

H-alpha kinematics of S4G spiral galaxies-II. Data description and non-circular motions [PDF]

, 2015
We present a kinematical study of 29 spiral galaxies included in the Spitzer Survey of Stellar Structure in Galaxies, using Halpha Fabry-Perot data obtained with the Galaxy Halpha Fabry-Perot System instrument at the William Herschel Telescope in La ...
Athanassoula, E., Beckman, John E., Bosma, Albert, Cisternas, Mauricio, Díaz-García, Simón, Elmegreen, Bruce G., Erroz-Ferrer, Santiago, Font, Joan, Ho, Luis C., Kim, Taehyun, Knapen, Johan H., Laurikainen, Eija, Leaman, Ryan, Martinez-Valpuesta, Inma, Meidt, Sharon E., Muñoz-Mateos, Juan Carlos, Salo, Heikki, Sheth, Kartik   +17 more
core   +4 more sources

Simultaneous inhibition of TRIM24 and TRIM28 sensitises prostate cancer cells to antiandrogen therapy, decreasing VEGF signalling and angiogenesis

Molecular Oncology, Volume 19, Issue 10, Page 2797-2821, October 2025.
TRIM24 and TRIM28 are androgen receptor (AR) coregulators which exhibit increased expression with cancer progression. Both TRIM24 and TRIM28 combine to influence the response of castrate‐resistant prostate cancer (CRPC) cells to AR inhibitors by mediating AR signalling, regulation of MYC and upregulating VEGF to promote angiogenesis. Castrate‐resistant
Damien A. Leach, Nilesh Chatterjee, Kellie Spahr, Gilberto Serrano de Almeida, Anabel Varela‐Carver, Taimur T. Shah, Mathias Winkler, Hashim U. Ahmed, Charlotte L. Bevan   +8 more
wiley   +1 more source

What determines the sizes of bars in spiral galaxies? [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT I use volume- and mass-limited subsamples and recently published data from the Spitzer Survey of Stellar Structure in Galaxies (S4G) to investigate how the size of bars depends on galaxy properties. The known correlation between bar semimajor axis a and galaxy stellar mass (or luminosity) is actually bimodal: for $\log \, (M_ ...
openaire   +2 more sources

CO OBSERVATIONS OF BARRED SPIRAL GALAXIES [PDF]

Journal of The Korean Astronomical Society, 2006
We present the results of a highly sensitive ( mK rms) survey toward the central parts of 22 barred spiral galaxies in line using the NRAO 12m telescope at Kitt Peak. Seven of the target galaxies were detected in CO; NGC 3686 has been detected with CO for the first time. We estimated central CO fluxes of and molecular gas masses of for those galaxies.
Hyo-Ryoung Kim, Min Young Lee, Myung-Hyun Rhee, Chang-Won Lee   +3 more
openaire   +2 more sources

Identification and Analysis of Galactic Bars in DESI Legacy Imaging Surveys

The Astrophysical Journal
We present a comprehensive study of bar structures in the local universe using data from the DESI Legacy Imaging Surveys. Through isophotal analysis of 232,142 galaxies, we identify bars and classify them into strong and weak categories based on ...
Wenwen Wang, Zhimin Zhou
doaj   +1 more source

Chandra Observation of NGC 1559: Eight Ultraluminous X-Ray Sources Including a Compact Binary Candidate

The Astrophysical Journal, 2023
Despite the 30 yr history of ultraluminous X-ray sources (ULXs) studies, issues such as the majority of their physical natures (i.e., neutron stars, stellar-mass black holes, or intermediate black holes) as well as the accretion mechanisms are still ...
Chen-Hsun Ma, Kwan-Lok Li, You-Hua Chu, Albert K. H. Kong   +3 more
doaj   +1 more source

Invariant manifolds and the response of spiral arms in barred galaxies

, 2008
The unstable invariant manifolds of the short-period family of periodic orbits around the unstable Lagrangian points $L_1$ and $L_2$ of a barred galaxy define loci in the configuration space which take the form of a trailing spiral pattern.
Aguerri, Buta, C. Efthymiopoulos, C. Kalapotharakos, Contopoulos, Contopoulos, Contopoulos, Contopoulos, Efthymiopoulos, Fux, G. Contopoulos, Grobman, Hammed, Hartman, Kaufmann, Kaufmann, Laurikainen, Lindblad, P. Tsoutsis, Patsis, Patsis, Pfenniger, Pfenniger, Pichardo, Romero-Gomez, Romero-Gomez, Schwarzschild, Smith, Sparke, Tsoutsis, Tully, Voglis, Voglis   +32 more
core   +1 more source

Enhanced Radiation at Aviation Altitudes and Plasmaspheric Hiss Waves—A Time Shift Analysis

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Increased radiation levels in Earth's atmosphere can present significant risks to airline pilots, passengers, and commercial space travelers. Recent findings have revealed a strong statistical link between radiation dose rates detected at aviation altitudes (>9 ${ >} 9$km) and plasmaspheric hiss wave power observed along the same magnetic ...
Homayon Aryan, Jacob Bortnik, W. Kent Tobiska, Piyush Mehta, Benjamin Hogan, Harshitha Challa   +5 more
wiley   +1 more source

Near-IR photometry of disk galaxies: search for nuclear isophotal twist and double bars [PDF]

, 1997
We present a near-IR, mainly H band, photometry of 72 nearby disk galaxies. The main goal of the survey was to search for isophotal twist inside their nuclear regions.
Axon, David J., Combes, Francoise, Jungwiert, Bruno   +2 more
core   +2 more sources

A Chromosome Inversion Creates a Supergene for Sex and Colour in Lake Malawi Cichlids

Molecular Ecology, Volume 34, Issue 20, October 2025.
ABSTRACT Cichlid fishes have the highest rates of evolutionary turnover of sex chromosomes among vertebrates. Many large structural polymorphisms in the radiation of cichlids in Lake Malawi are associated with sex chromosomes and may also carry adaptive variation.
Kristen A. Behrens, Soumya Jailwala, Frances E. Clark, Anne C. Meyer, Nikesh M. Kumar, Adrianus F. Konings, Reade B. Roberts, Matthew A. Conte, Jeffrey T. Streelman, Patrick T. McGrath, Thomas D. Kocher   +10 more
wiley   +1 more source