Results 51 to 60 of about 320,186 (190)
Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions
Advanced Intelligent Systems, EarlyView.Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley +1 more source
Recent Observations of the Rotation of Distant Galaxies and the Implication for Dark Matter [PDF]
A&A 687, A261 (2024)Recent measurements of gas velocity in the outer parts of high redshift galaxies suggest that steeply falling rotation curves may be common, or even universal, in these galaxies, in contrast to the near universal flat, non-declining rotation curves in nearby galaxies.
arxiv +1 more source
Galaxy rotation curves in the Grumiller's modified gravity [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 12 pages, 3 figures, 4 ...
Hai-Nan Lin +3 more
openaire +3 more sources
Milky Way Mass Models and MOND
, 2008 Using the Tuorla-Heidelberg model for the mass distribution of the Milky Way, I determine the rotation curve predicted by MOND. The result is in good agreement with the observed terminal velocities interior to the solar radius and with estimates of the ...
Angus G. W. +16 more
core +1 more source
Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions
Astronomische Nachrichten, EarlyView.ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge +3 more
wiley +1 more source
Rotation curves of galaxies in GR
, 2023 It has been suggested that the observed flat rotation curves of disk galaxies can be a peculiar effect of General Relativity (GR) rather than evidence for the presence of dark matter (DM) halos in Newtonian gravity. In Ciotti (2022) the problem has been quantitatively addressed by using the well known weak-field, low-velocity gravitomagnetic limit of ...
openaire +2 more sources
Two-component galaxies with flat rotation curve [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 11 pages, 5 figures, accepted by ...
CIOTTI, LUCA +2 more
openaire +3 more sources
Is M82 a Disk-Truncated Bulge by a Close Encounter with M81? [PDF]
, 1998 The rotation curve of the small-mass starburst galaxy M82 has a steep nuclear rise, peaking at 200 pc radius, and then, declines in a Keplerian fashion.
Sofue, Yoshiaki
core +3 more sources
A Slowly Pulsating Run‐Away B Star at High Galactic Latitude Ejected From a Spiral Arm
Astronomische Nachrichten, EarlyView.ABSTRACT We report the discovery of the young B6 V run‐away star LAMOST J083323.18 + 430825.4, 2.5 kpc above the Galactic plane. Its atmospheric parameters and chemical composition are determined from LAMOST spectra, indicating normal composition. Effective temperature (Teff$$ {T}_{\mathrm{eff}} $$ = 14,500$$ \mathrm{14,500} $$ K) and gravity (logg ...
Ulrich Heber +3 more
wiley +1 more source
The Extended Rotation Curve and the Dark Matter Halo of M33 [PDF]
, 1999 We present the 21-cm rotation curve of the nearby galaxy M33 out to a galactocentric distance of 16 kpc (13 disk scale-lengths). The rotation curve keeps rising out to the last measured point and implies a dark halo mass larger than 5 10^{10} solar ...
Corbelli, Edvige, Salucci, Paolo
core +3 more sources