Results 51 to 60 of about 1,664 (106)

Revisiting Variable Stars Near Globular Clusters South of −29° Declination

Astronomische Nachrichten, Volume 346, Issue 2, February 2025.
ABSTRACT We review an often‐cited but seldom‐accessed catalogue by Fourcade and Laborde (1966) of 785 variable stars near 47 southern Galactic globular clusters, and recover the locations of 85 stars that were not incorporated into subsequent variable star catalogues and hence have become “lost” to the literature.
Andrew C. Layden, Julia Evangelista, Sakshi Gupta, Mithilesh Mittameda, Eva Mulloy, Sohan I. Muslim, Tiyinoluwa Olushola‐Alao, Akul Rishi   +7 more
wiley   +1 more source

Self-consistent Bulge/Disk/Halo Galaxy Dynamical Modeling Using Integral Field Kinematics [PDF]

The Astrophysical Journal, 2017
Abstract We introduce a method for modeling disk galaxies designed to take full advantage of data from integral field spectroscopy (IFS). The method fits equilibrium models to simultaneously reproduce the surface brightness, rotation, and velocity dispersion profiles of a galaxy.
Samuel N. Richards, Samuel N. Richards, Francesco D'Eugenio, Anne M. Medling, Anne M. Medling, Nuria P. F. Lorente, J. T. Allen, Scott M. Croom, Simon P. Driver, Matthew Colless, Amanda J. Moffett, Aaron S. G. Robotham, J. van de Sande, Michael J. Drinkwater, Roger L. Davies, C. Tonini, I. S. Konstantopoulos, Danail Obreschkow, Lisa Fogarty, Barbara Catinella, Jeremy Mould, Luca Cortese, John Dubinski, Matt S. Owers, Matt S. Owers, Julia J. Bryant, Julia J. Bryant, Chris Power, Dan S. Taranu, Joss Bland-Hawthorn, Angel R. Lopez-Sanchez, Angel R. Lopez-Sanchez, Michael Goodwin, J. S. Lawrence   +33 more
openaire   +7 more sources

The effect of vorticity on the feeding of a freshwater grazer

Limnology and Oceanography, Volume 69, Issue S1, Page S54-S66, December 2024.
Abstract The transfer of energy through zooplankton grazing on phytoplankton is one of the most important interactions in aquatic ecosystems, yet the role of hydrodynamic forces is not fully understood. Factors that influence these interactions include algal size and shape and the interactions between grazer and alga dictated by hydrodynamic forces ...
Luc Goulet, Warren Joseph Sproule Currie, Josef Daniel Ackerman   +2 more
wiley   +1 more source

mapping galaxy components with kinematics dynamical models with stellar and gaseous kinematics

, 2020
"My postgraduate study was supported by the China Scholarship Council [File No. 201603780010]. My research in this thesis received grant from the Scottish Universities Physics Alliance [Postdoctoral and Early Career Researcher Exchange Program]; the Royal Astronomical Society [RAS Small Grants Scheme]; and the International Astronomical Union [IAU ...
openaire   +4 more sources

Material Testing for Physicists: Unraveling the Dissipative Nature of Silicone Elastomers via Ball Drop Testing

Macromolecular Materials and Engineering, Volume 309, Issue 10, October 2024.
Soft materials such as silicone elastomers are ideal for stretchable electronics and soft robotics. A simple and cheap ball drop test allows the determination of their properties focusing on damping. By monitoring the ball's impact and trajectory, parameters such as Young's modulus, reduced modulus, rebound resilience, and loss tangent are extracted ...
Rene Preuer, Carina Emminger, Umut Cakmak, Ingrid Graz   +3 more
wiley   +1 more source

Towards autonomous selective harvesting: A review of robot perception, robot design, motion planning and control

Journal of Field Robotics, Volume 41, Issue 7, Page 2247-2279, October 2024.
Abstract This paper provides an overview of the current state‐of‐the‐art in selective harvesting robots (SHRs) and their potential for addressing the challenges of global food production. SHRs have the potential to increase productivity, reduce labor costs, and minimize wastage by selectively harvesting only ripe fruits and vegetables.
Vishnu Rajendran, Bappaditya Debnath, Sariah Mghames, Willow Mandil, Soran Parsa, Simon Parsons, Amir Ghalamzan‐E.   +6 more
wiley   +1 more source

Large Area Ballistocardiography Enabled by Printed Piezoelectric Sensor Arrays on Elastomeric Substrates

Advanced Materials Technologies, Volume 9, Issue 17, September 4, 2024.
The utilization of thin and long piezoelectric sensors on compliant substrates allows for the remarkable enhancement of the effective transverse charge constant (d31). The approach is validated using the printable piezoelectric polymer, poly(vinylidene fluoride‐co‐trifluoroethylene) P(VDF‐TrFE).
Peter Zalar, Marieke M. A. Burghoorn, Joost A. Fijn, Lars F. A. Rikken, Peter A. Rensing, Jeroen van den Brand, Dago M. de Leeuw, Edsger C. P. Smits   +7 more
wiley   +1 more source

The metaphysics science needs: Deleuze's naturalism

European Journal of Philosophy, Volume 32, Issue 3, Page 820-846, September 2024.
Abstract This article is aimed at those interested in the philosophy of Gilles Deleuze and the sciences—and this includes philosophers of science working out of the analytic tradition. Deleuze's writings are riddled with references to science and mathematics.
George Webster
wiley   +1 more source

Distribution and Dynamics of Molecular Gas in the Galaxy M51. III. Kinematics of Molecular Gas [PDF]

Publications of the Astronomical Society of Japan, 1997
We present here a study of the dynamics of the molecular gas in the spiral galaxy M51 using CO data obtained with the Nobeyama 45-m telescope. From the distribution of the radial velocity of the CO gas, the velocity components parallel and perpendicular to the spiral arms were determined for each spiral phase.
Nario Kuno, Naomasa Nakai
openaire   +2 more sources

The Structure and Dynamics of Ringed Galaxies. II. UBVRI Surface Photometry and H-alpha Kinematics of the Ringed Barred Spiral NGC 1433

, 1986
The southern galaxy NGC 1433 is one of the nearest examples of a ringed, barTed spiral. It is the prototype of revised Hubble type (R')SB(r)ab, and it includes the three main ring types possible in a normal galaxy: a nuclear ring/lens 0'.3 in diameter ...
R. Buta
semanticscholar   +1 more source