output
20022015
most citedTrigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions

1.1k citations

Showing 2004Show all

7 papers · 1 filter

astro-ph2004

Applications of precision astrometry to studies of massive YSOs

M. J. Rioja, L. Moscadelli, R. Cesaroni

We present VLBI observations of the HO maser emission towards a selection of massive young stellar objects (YSOs). In one of these sources, IRAS20126+4104, the measured proper…

astro-ph200417 cited

Molecular abundance ratios as a tracer of accelerated collapse in regions of high mass star formation?

C. J. Lintott, S. Viti, J. M. C. Rawlings +5

Recent observations suggest that the behaviour of tracer species such as N_2H+ and CS is significantly different in regions of high and low mass star formation. In the latter, N_2H…

nlin.CD2004

Lyapunov exponents from unstable periodic orbits in the FPU-beta model

Roberto Franzosi, Pietro Poggi, Monica Cerruti-Sola

In the framework of a recently developed theory for Hamiltonian chaos, which makes use of the formulation of Newtonian dynamics in terms of Riemannian differential geometry, we obt…

nlin.CD20049 cited

Tailoring Phase Space : A Way to Control Hamiltonian Transport

Guido Ciraolo, Cristel Chandre, Ricardo Lima +3

We present a method to control transport in Hamiltonian systems. We provide an algorithm - based on a perturbation of the original Hamiltonian localized in phase space - to design…

astro-ph2004

Observational tests of the evolution of spheroidal galaxies and predictions for SIRTF/Spitzer cosmological surveys

Laura Silva, Gianfranco De Zotti, Gian Luigi Granato +2

Granato et al(2004) have elaborated a physically grounded model exploiting the mutual feedback between star-forming spheroidal galaxies and the active nuclei growing in their cores…

astro-ph200432 cited

Dynamics of the circumstellar gas in the Herbig Ae stars BF Orionis, SV Cephei, WW Vulpeculae and XY Persei

A. Mora, C. Eiroa, A. Natta +22

We present high resolution (lambda / Delta_lambda = 49000) echelle spectra of the intermediate mass, pre-main sequence stars BF Ori, SV Cep, WW Wul and XY Per. The spectra cover th…