Results 61 to 70 of about 30,211 (248)

Detection of CO(J=1-0) Emission from Barred Spiral Galaxies at z~0.1

, 2011
We present the results of CO (J=1-0) observations towards nine barred spiral galaxies at z=0.08-0.25 using the 45-m telescope at Nobeyama Radio Observatory (NRO). This survey is the first one specialized for barred spiral galaxies in this redshift range.
Kuno, Nario, Matsui, Kana, Sorai, Kazuo, Watanabe, Yoshimasa   +3 more
core   +1 more source

The Distribution of Bar and Spiral Strengths in Disk Galaxies

, 2005
The distribution of bar strengths in disk galaxies is a fundamental property of the galaxy population that has only begun to be explored. We have applied the bar/spiral separation method of Buta, Block, and Knapen to derive the distribution of maximum ...
Aguerri J. A. L., Athanassoula E., Block D. L., Chapelon S., de Vaucouleurs G., E. Laurikainen, Firmani C., H. Salo, Martinet L., Merrifield M. R., Noguchi M., Persic M., R. Buta, S. Vasylyev, Sellwood J. A., Wozniak H.   +15 more
core   +2 more sources

The Visibility of Galactic Bars and Spiral Structure At High Redshifts [PDF]

, 2002
We investigate the visibility of galactic bars and spiral structure in the distant Universe by artificially redshifting 101 B-band CCD images of local spiral galaxies from the Ohio State University Bright Spiral Galaxy Survey. Our artificially redshifted
Abraham R. G., Abraham R. G., Glazebrook K., Jay A. Frogel, Laura F. Whyte, Michael R. Merrifield, Paul B. Eskridge, Richard Pogge, Roberto G. Abraham, Sidney van den Bergh   +9 more
core   +2 more sources

The evolution of barred spiral galaxies in the Hubble Deep Fields North and South [PDF]

, 1998
The frequency of barred spiral galaxies as a function of redshift contains important information on the gravitational influence of stellar disks in their dark matter halos and also may distinguish between contemporary theories for the origin of galactic ...
R. Abraham, M. Merrifield, R. Ellis, N. Tanvir, J. B. I. O. Astronomy, U. Cambridge, S. O. PhysicsAstronomy, U. Nottingham, D. PhysicsAstronomy, U. Southampton   +9 more
semanticscholar   +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

Density Waves Inside Inner Lindblad Resonance: Nuclear Spirals in Disk Galaxies [PDF]

, 1999
We analyze formation of grand-design two-arm spiral structure in the nuclear regions of disk galaxies. Such morphology has been recently detected in a number of objects using high-resolution near-infrared observations.
Athanassoula E., Buta R., Contopoulos G., Englmaier P., Ferrers N. M., Isaac Shlosman, Mulder W. A., Peter Englmaier, Schwarz M. P., van Albada T. S.   +9 more
core   +2 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

The Frequency of Barred Spiral Galaxies in the Near-Infrared [PDF]

, 1999
We have determined the fraction of barred galaxies in the H-band for a statistically well-defined sample of 186 spirals drawn from the Ohio State University Bright Spiral Galaxy Survey.
P. Eskridge, J. Frogel, R. Pogge, A. Quillen, R. Davies, D. DePoy, M. Houdashelt, L. Kuchinski, S. Ramírez, K. Sellgren, D. Terndrup, Glenn P. Tiede Ohio State University, U. Arizona, D. University, John Hopkins University, Jet propulsion Laboratory, N. A. Observatories   +16 more
semanticscholar   +1 more source

Normal Spiral Grand-Design Morphologies in Self-Consistent N-Body Models

Galaxies
Grand-design spiral structures typically emerge in N-body simulations of disk galaxies as barred-spiral configurations forming during the early evolutionary stages of the system.
P. A. Patsis, P. Okalidis
doaj   +1 more source

Fractal basins of escape and the formation of spiral arms in a galactic potential with a bar [PDF]

, 2014
We investigate the dynamics in the close vicinity of and within the critical area in a 2D effective galactic potential with a bar of Zotos. We have calculated Poincar\'e surfaces of section and the basins of escape.
Ernst, Andreas, Peters, Thomas
core   +1 more source